feat StayExport - Added ExportDetails for StayExports

Store a new field ('ExportDetails') with export details. This is a JSON field in DB that can store information about the export depending on the format provider used.

Changes:
- Updated models and created required migrations.
- Show field in StayExport list.

Directory.Packages.props

@@ -6,6 +6,8 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="Extensions.MudBlazor.StaticInput" Version="4.1.0" />
+    <PackageVersion Include="FluentStorage" Version="8.0.16" />
+    <PackageVersion Include="FluentStorage.AWS" Version="8.0.10" />
     <PackageVersion Include="FluentValidation" Version="12.1.1" />
     <PackageVersion Include="Grpc.AspNetCore" Version="2.64.0" />
     <PackageVersion Include="Microsoft.Extensions.Localization" Version="10.0.9" />
@@ -23,6 +25,7 @@
     </PackageVersion>
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Tools" Version="10.0.7" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Relational" Version="10.0.7" />
+    <PackageVersion Include="Microsoft.EntityFrameworkCore.Proxies" Version="10.0.7" />
     <PackageVersion Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.1" />
   </ItemGroup>
 </Project>

src/Somnia.GuestLog/Components/App.razor

@@ -23,6 +23,7 @@
     <ReconnectModal />
     <script src="@Assets["_framework/blazor.web.js"]"></script>
     <script src="@Assets["_content/MudBlazor/MudBlazor.min.js"]"></script>
+    <script src="js/App.js"></script>
 </body>
 
 </html>

src/Somnia.GuestLog/Components/Controls/AddressQueryDialog.razor

@@ -0,0 +1,161 @@
+@using Somnia.GuestLog.Models.DTOs;
+@using Somnia.GuestLog.Services
+@using Somnia.GuestLog.Services.AddressQuery;
+
+@inject ILogger<AddressQueryDialog> logger;
+@inject IAddressQueryFactory addressQueryFactory;
+@inject IUserMessageService userMessage
+
+<MudDialog @ref="@DialogRef">
+    <TitleContent>
+        <MudText Typo="Typo.h6">
+            <MudIcon Icon="@Icons.Material.Filled.NotListedLocation" Class="mr-3 mb-n1" />
+            @LanguageLocale.control_AddressQueryDialog_dialogTitle
+        </MudText>
+    </TitleContent>
+    <DialogContent>
+        <MudStack row>
+            <MudTextField @bind-Value="SearchText" Label="@LanguageLocale.control_AddressQueryDialog_searchText"
+                          Required />
+            <MudIconButton Icon="@Icons.Material.Filled.Search" OnClick="btnSearchAddress" />
+        </MudStack>
+
+        <MudPaper Class="mt-4 pa-2">
+            @if (addressResults.Count == 0)
+            {
+                <MudText Typo="Typo.body1">@LanguageLocale.general_noResults</MudText>
+            }
+
+            <MudList T="AddressResultDTO" @bind-SelectedValue="SelectedAddressResult"
+                     SelectionMode="SelectionMode.SingleSelection" Color="Color.Info">
+                @foreach (AddressResultDTO result in addressResults)
+                {
+                    <MudListItem Value="result">
+                        <ChildContent>
+                            <MudTextField Value="@($"{result.AddressRoad}, {result.HouseNumber}")"
+                                          Label="@LanguageLocale.general_address_address" ReadOnly />
+                            <MudStack row>
+                                <MudTextField Value="@result.AddressCity" Label="@LanguageLocale.general_address_city"
+                                              ReadOnly />
+                                <MudTextField Value="@result.AddressProvince"
+                                              Label="@LanguageLocale.general_address_province" ReadOnly />
+                                <MudTextField Value="@result.AddressState" Label="@LanguageLocale.general_address_state"
+                                              ReadOnly />
+                            </MudStack>
+                            <MudStack row>
+                                <MudTextField Value="@result.AddressCountry" Label="@LanguageLocale.general_address_country"
+                                              ReadOnly />
+                                <MudTextField Value="@result.ZipCode" Label="@LanguageLocale.general_address_zipCode"
+                                              ReadOnly />
+                            </MudStack>
+                        </ChildContent>
+                    </MudListItem>
+                }
+            </MudList>
+        </MudPaper>
+
+    </DialogContent>
+    <DialogActions>
+        <MudButton OnClick="Cancel">
+            @LanguageLocale.general_btnCancel
+        </MudButton>
+        <MudButton Color="Color.Primary" OnClick="btnSelectAddress">
+            @LanguageLocale.control_AddressQueryDialog_btnSelectAddress
+        </MudButton>
+    </DialogActions>
+</MudDialog>
+
+@code {
+    // Dialog Instance injected when open by the DialogService.
+    // This field is null when dialog is not open by the DialogService.
+    [CascadingParameter]
+    private IMudDialogInstance MudDialog { get; set; } = null!;
+    // Reference to the Dialog when open by the ShowAsync Method. (When dialog is used inline).
+    // This field is null when dialog is not open using the internal methods.
+    private IDialogReference? _reference;
+
+    //Reference to the MudDialog component. Used to manage the internal dialog when the component is inline.
+    private MudDialog DialogRef { get; set; } = null!;
+
+    private string SearchText { get; set; } = "";
+    private List<AddressResultDTO> addressResults = [];
+    private AddressResultDTO? SelectedAddressResult { get; set; }
+
+
+    private void Cancel()
+    {
+        if (MudDialog is not null)
+        {
+            MudDialog.Cancel();
+            return;
+        }
+        else if (_reference is not null)
+        {
+            DialogRef.CloseAsync(DialogResult.Cancel());
+            return;
+        }
+        throw new InvalidOperationException("Unable to cancel (close) the dialog!");
+    }
+
+    private async Task btnSearchAddress()
+    {
+        if (SearchText.Length == 0)
+        {
+            return;
+        }
+
+        try
+        {
+            var queryService = addressQueryFactory.GetService();
+
+            addressResults = await queryService.SearchAddressAsync(SearchText);
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "SearchAddress returned an error!");
+            userMessage.ShowMessage($"Error searching address: {ex.Message}", MessageKind.Error);
+        }
+    }
+
+    private async Task btnSelectAddress()
+    {
+        if (SelectedAddressResult is null)
+        {
+            userMessage.ShowMessage("Select an address", MessageKind.Warning);
+            return;
+        }
+
+        DialogResult dialogResult = DialogResult.Ok<AddressResultDTO?>(SelectedAddressResult);
+
+        //Close the dialog when opened by DialogService.
+        if (MudDialog != null)
+        {
+            logger.LogDebug("AddressQueryDialog - Closed MudDialogInstance!");
+            MudDialog.Close(dialogResult);
+            return;
+        }
+        //Close the dialog when is a Inline dialog.
+        else if (_reference is not null)
+        {
+            logger.LogDebug("AddressQueryDialog - Closed inline dialog instance!");
+            await DialogRef.CloseAsync(dialogResult);
+            return;
+        }
+        //Throw if the dialog can't be closed (as none of the above is true).
+        throw new InvalidOperationException("Dialog cannot be closed! No reference to close!");
+    }
+
+
+    public async Task<IDialogReference> ShowAsync(DialogOptions? options = null)
+    {
+        _reference = await DialogRef.ShowAsync(options: options);
+        return _reference;
+    }
+
+    public async Task CloseAsync()
+    {
+        await DialogRef.CloseAsync();
+        _reference = null;
+    }
+
+}

src/Somnia.GuestLog/Components/Controls/ConfirmDeleteMsgBox.razor

@@ -0,0 +1,18 @@
+<MudMessageBox @ref="_msgBox" Title="@LanguageLocale.general_confirmTitle"
+               CancelText="@LanguageLocale.general_btnCancel">
+    <MessageContent>
+        @LanguageLocale.general_confirmDeleteMsg
+    </MessageContent>
+    <YesButton>
+        <MudButton Variant="Variant.Filled" Color="Color.Error" StartIcon="@Icons.Material.Filled.DeleteForever">
+            @LanguageLocale.general_btnDelete
+        </MudButton>
+    </YesButton>
+</MudMessageBox>
+
+@code {
+    public MudMessageBox MsgBox => _msgBox;
+
+    MudMessageBox _msgBox = null!;
+
+}

src/Somnia.GuestLog/Components/Controls/GuestDocumentSearchDialog.razor

@@ -0,0 +1,152 @@
+@using Somnia.GuestLog.Models.DTOs;
+@using Somnia.GuestLog.Services
+@using Somnia.GuestLog.Services.Entity
+
+@inject ILogger<AddressQueryDialog> logger;
+@inject IUserMessageService userMessage
+@inject IGuestDocumentEntityService guestDocumentService;
+
+
+<MudDialog Style="max-height: 90%;">
+    <TitleContent>
+        <MudText Typo="Typo.h6">
+            <MudIcon Icon="@Icons.Material.Filled.PersonSearch" Class="mr-3 mb-n1" />
+            @LanguageLocale.control_GuestDocumentSearchDialog_dialogTitle
+        </MudText>
+    </TitleContent>
+    <DialogContent>
+        <GuestDocumentFilterForm @bind-Filter="@filter" />
+        <MudButton StartIcon="@Icons.Material.Filled.Search" OnClick="BtnSearchGuestDocuments" FullWidth
+                   Variant="Variant.Filled" Disabled="@isLoading">
+            @LanguageLocale.general_btnSearch
+        </MudButton>
+        <MudDivider DividerType="DividerType.FullWidth" Class="my-4" />
+
+        <MudPaper Class="pa-2" MinHeight="120px">
+            @if (!isLoading && results.Count() == 0)
+            {
+                <MudText Typo="Typo.body1" Align="Align.Center">@LanguageLocale.general_noResults</MudText>
+            }
+
+            @if (isLoading)
+            {
+                <MudSkeleton SkeletonType="SkeletonType.Rectangle" Height="100px" />
+            }
+
+            @if (!isLoading)
+            {
+                @* Only show on first load *@
+                @if (loadCount == 1)
+                {
+                    <MudText Align="Align.Center" GutterBottom>
+                        @LanguageLocale.control_GuestDocumentSearchDialog_txtSuggestedGuests
+                    </MudText>
+                }
+
+                <MudList T="GuestDocumentDTO" @bind-SelectedValue="SelectedResult"
+                         SelectionMode="SelectionMode.SingleSelection" Color="Color.Info">
+                    @foreach (GuestDocumentDTO result in results)
+                    {
+                        <MudListItem Value="result">
+                            <ChildContent>
+                                <MudTextField Value="@($"{result.DocumentType} - {result.DocumentNum}")"
+                                              Label="@LanguageLocale.dto_GuestDocument_DocumentNum" ReadOnly />
+                                <MudTextField Value="@($"{result.Name} {result.Surname} {result.Surname2}")"
+                                              Label="@LanguageLocale.dto_GuestDocument_Name" ReadOnly />
+                            </ChildContent>
+                        </MudListItem>
+                    }
+                </MudList>
+            }
+        </MudPaper>
+
+    </DialogContent>
+    <DialogActions>
+        <MudButton OnClick="Cancel">
+            @LanguageLocale.general_btnCancel
+        </MudButton>
+        <MudButton Color="Color.Primary" OnClick="btnSelectGuest">
+            @LanguageLocale.control_GuestDocumentSearchDialog_btnSelectDocument
+        </MudButton>
+    </DialogActions>
+</MudDialog>
+
+@code {
+    // Dialog Instance injected when open by the DialogService.
+    // This field is null when dialog is not open by the DialogService.
+    [CascadingParameter]
+    private IMudDialogInstance MudDialog { get; set; } = null!;
+
+
+    private GuestDocFilterDTO filter { get; set; } = new()
+    {
+        OnlyLastVersion = true
+    };
+    private IEnumerable<GuestDocumentDTO> results = [];
+    private GuestDocumentDTO? SelectedResult { get; set; }
+
+    private bool isLoading = false;
+    private int loadCount = 0;
+
+
+    protected override async Task OnInitializedAsync()
+    {
+        //Load last 5 guests.
+        await LoadGuests(limit: 5);
+    }
+
+
+    private void Cancel() => MudDialog.Cancel();
+
+
+    private async Task LoadGuests(int limit = 25)
+    {
+
+        try
+        {
+            isLoading = true;
+            results = await guestDocumentService.GetDtoListByFilterAsync(filter);
+            isLoading = false;
+            loadCount++;
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "GuestDocument Search returned an error!");
+            userMessage.ShowMessage($"Error searching: {ex.Message}", MessageKind.Error);
+        }
+    }
+
+
+    #region Event Handlers
+
+    private async Task BtnSearchGuestDocuments()
+    {
+        if (filter.IsEmpty)
+        {
+            userMessage.ShowMessage("Search can't be empty!", MessageKind.Warning);
+            return;
+        }
+
+        //Load unlimited guests using current filter.
+        await LoadGuests();
+    }
+
+    private async Task btnSelectGuest()
+    {
+        if (SelectedResult is null)
+        {
+            userMessage.ShowMessage("A guest document must be selected", MessageKind.Warning);
+            return;
+        }
+
+        DialogResult dialogResult = DialogResult.Ok<GuestDocumentDTO?>(SelectedResult);
+
+        //Close the dialog when opened by DialogService.
+        logger.LogDebug("GuestDocumentSearchDialog - Closed MudDialogInstance!");
+        MudDialog.Close(dialogResult);
+        return;
+    }
+
+    #endregion
+
+}

src/Somnia.GuestLog/Components/Forms/GuestDocForm.razor

@@ -17,14 +17,16 @@
                 <MudDivider DividerType="DividerType.Middle" Class="mb-4" />
                 <MudStack Row style="@FieldMarginY">
                     <MudSelect @bind-Value="Model.DocumentType" For="@(() => Model.DocumentType)" Label="@LanguageLocale.dto_GuestDocument_DocumentType"
-                               Required ReadOnly="true">
+                               Required ReadOnly="@ReadOnlyDocId">
                         @foreach (string docType in dataListService.GetDataListByName(GuestConsts.DataList_DocumentTypes))
                         {
-                            <MudSelectItem Value="docType">@dataListService.GetLocalizedValue(GuestConsts.DataList_DocumentTypes, docType)</MudSelectItem>
+                            <MudSelectItem Value="docType">
+                                @dataListService.GetLocalizedValue(GuestConsts.DataList_DocumentTypes, docType)
+                            </MudSelectItem>
                         }
                     </MudSelect>
                     <MudTextField @bind-Value="Model.DocumentNum" For="@(() => Model.DocumentNum)" Label="@LanguageLocale.dto_GuestDocument_DocumentNum"
-                                  Immediate="true" Required ReadOnly="true" />
+                                  Required ReadOnly="@ReadOnlyDocId" />
                 </MudStack>
 
                 <MudStack Row style="@FieldMarginY">
@@ -32,7 +34,7 @@
                                    Clearable OpenTo="OpenTo.Year" Editable />
 
                     <MudTextField @bind-Value="Model.SupportNum" For="@(() => Model.SupportNum)" Label="@LanguageLocale.dto_GuestDocument_SupportNum"
-                                  Immediate="true" Required="@isSuportNumberRequired" Mask="@(new PatternMask("aaa000000"))" 
+                                  Required="@isSuportNumberRequired" Mask="@(new PatternMask("aaa000000"))" 
                                   OnBlur="@(() => Model.SupportNum = Model.SupportNum?.ToUpper())" />
                 </MudStack>
 
@@ -49,13 +51,13 @@
 
                 <MudTextField @bind-Value="Model.Name" For="@(() => Model.Name)"
                               Label="@LanguageLocale.dto_GuestDocument_Name"
-                              Immediate="true" OnBlur="@(() => Model.Name = Model.Name?.ToUpper())" />
+                              OnBlur="@(() => Model.Name = Model.Name?.ToUpper())" />
                 <MudTextField @bind-Value="Model.Surname" For="@(() => Model.Surname)"
                               Label="@LanguageLocale.dto_GuestDocument_Surname"
-                              Immediate="true" OnBlur="@(() => Model.Surname = Model.Surname?.ToUpper())" />
+                              OnBlur="@(() => Model.Surname = Model.Surname?.ToUpper())" />
                 <MudTextField @bind-Value="Model.Surname2" For="@(() => Model.Surname2)"
                               Label="@LanguageLocale.dto_GuestDocument_Surname2"
-                              Immediate="true" OnBlur="@(() => Model.Surname2 = Model.Surname2?.ToUpper())" />
+                              OnBlur="@(() => Model.Surname2 = Model.Surname2?.ToUpper())" />
 
                 <MudStack Row style="@FieldMarginY">
                     <MudDatePicker @bind-Date="Model.BirthDate" For="@(() => Model.BirthDate)" Label="@LanguageLocale.dto_GuestDocument_BirthDate"
@@ -64,7 +66,9 @@
                     <MudSelect @bind-Value="Model.Gender" For="@(() => Model.Gender)" Label="@LanguageLocale.dto_GuestDocument_Gender">
                         @foreach (string gender in dataListService.GetDataListByName(GuestConsts.DataList_GenderOptions))
                         {
-                            <MudSelectItem Value="gender">@dataListService.GetLocalizedValue(GuestConsts.DataList_GenderOptions, gender)</MudSelectItem>
+                            <MudSelectItem Value="gender">
+                                @dataListService.GetLocalizedValue(GuestConsts.DataList_GenderOptions, gender)
+                            </MudSelectItem>
                         }
                     </MudSelect>
                 </MudStack>
@@ -79,10 +83,10 @@
                 <MudStack Row>
                     <MudTextField @bind-Value="Model.PhoneNumber" For="@(() => Model.PhoneNumber)"
                                   Label="@LanguageLocale.dto_GuestDocument_PhoneNumber"
-                                  InputType="InputType.Telephone" Immediate="true" />
+                                  InputType="InputType.Telephone" />
                     <MudTextField @bind-Value="Model.EmailAddress" For="@(() => Model.EmailAddress)"
                                   Label="@LanguageLocale.dto_GuestDocument_EmailAddress" 
-                                  InputType="InputType.Email" Immediate="true" />
+                                  InputType="InputType.Email" />
                 </MudStack>
             </MudPaper>
         </MudItem>
@@ -92,23 +96,31 @@
                 <MudText Typo="Typo.subtitle1" Align="Align.Center">@LanguageLocale.control_GuestDocForm_sectionAddress</MudText>
                 <MudDivider DividerType="DividerType.Middle" Class="mb-4" />
 
-                <MudTextField @bind-Value="Model.Address" For="@(() => Model.Address)" Immediate="true" Label="@LanguageLocale.dto_GuestDocument_Address" />
+                @if (!ReadOnly) 
+                {
+                    <MudButton OnClick="BtnOpenAddressSearchDialog" Variant="Variant.Outlined" FullWidth="true" Class="mb-2">
+                        @LanguageLocale.control_GuestDocForm_btnSearchAddress
+                    </MudButton>
+                }
+
+                <MudTextField @bind-Value="Model.Address" For="@(() => Model.Address)" 
+                            Label="@LanguageLocale.general_address_address" ReadOnly="@ReadOnlyAddress" />
                 <MudStack Row style="@FieldMarginY">
                     <MudTextField @bind-Value="Model.AddressCity" For="@(() => Model.AddressCity)"
-                                Label="@LanguageLocale.dto_GuestDocument_AddressCity" Immediate="true" />
+                                Label="@LanguageLocale.general_address_city" ReadOnly="@ReadOnlyAddress" />
                     <MudTextField @bind-Value="Model.AddressProvince" For="@(() => Model.AddressProvince)"
-                                Label="@LanguageLocale.dto_GuestDocument_AddressProvince" Immediate="true" />
+                                Label="@LanguageLocale.general_address_province" ReadOnly="@ReadOnlyAddress" />
                     <MudTextField @bind-Value="Model.AddressState" For="@(() => Model.AddressState)"
-                                Label="@LanguageLocale.dto_GuestDocument_AddressState" Immediate="true" />
+                                Label="@LanguageLocale.general_address_state" ReadOnly="@ReadOnlyAddress" />
                 </MudStack>
                 <MudStack Row style="@FieldMarginY">
                     <MudAutocomplete T="string" @bind-Value="Model.AddressCountry" For="@(() => Model.AddressCountry)" 
-                                Label="@LanguageLocale.dto_GuestDocument_AddressCountry"
+                                Label="@LanguageLocale.general_address_country" ReadOnly="@ReadOnlyAddress"
                                 SearchFunc="@SearchCountryCodes" ToStringFunc="@(e=> string.IsNullOrEmpty(e) ? "" : @dataListService.GetLocalizedValue(GuestConsts.DataList_CountryCodes, e))"
                                 SelectValueOnTab="true" AdornmentIcon="@Icons.Material.Filled.Search" />
 
-                    <MudTextField @bind-Value="Model.ZipCode" For="@(() => Model.ZipCode)" Immediate="true"
+                    <MudTextField @bind-Value="Model.ZipCode" For="@(() => Model.ZipCode)"
-                                Label="@LanguageLocale.dto_GuestDocument_ZipCode" />
+                                Label="@LanguageLocale.general_address_zipCode" ReadOnly="@ReadOnlyAddress" />
                 </MudStack>
             </MudPaper>
         </MudItem>
@@ -116,6 +128,8 @@
     <MudText Class="mt-4">@CreateTimeString</MudText>
 </MudForm>
 
+<AddressQueryDialog @ref="@AddressQueryDialog" />
+
 @code {
 
     [Parameter]
@@ -124,9 +138,21 @@
     [Parameter]
     public bool ReadOnly { get; set; } = false;
 
+    [Parameter]
+    public bool ReadOnlyDocId { get; set; } = true;
+
 
     private MudForm _form = null!;
+    AddressQueryDialog AddressQueryDialog { get; set; } = null!;
+    DialogOptions AddressQueryDialogOptions = new()
+    {
+        MaxWidth = MaxWidth.Large,
+        FullWidth = true,
+    };
+    private bool ReadOnlyAddress { get; set; } = true;
+
     private const string FieldMarginY = "margin-block: 0.5em";
+
     private Dictionary<string, string>? countryDict = null;
 
     private bool isSuportNumberRequired { get => Model?.Nationality == GuestConsts.CountryCode_ESP; }
@@ -178,4 +204,39 @@
             .Select(x => x.Key);
     }
 
+    #region Event Handlers
+
+    private async Task BtnOpenAddressSearchDialog()
+    {
+        var reference = await AddressQueryDialog.ShowAsync(options: AddressQueryDialogOptions);
+
+        DialogResult? result = await reference.Result;
+
+        if (result is null || result.Canceled)
+        {
+            return;
+        }
+
+        AddressResultDTO? resultData = await reference.GetReturnValueAsync<AddressResultDTO>();
+        if (resultData is null) 
+        {
+            return;
+        }
+
+        //Update Address info.
+        Model.Address = $"{resultData.AddressRoad}, {resultData.HouseNumber}";
+        Model.AddressCity = resultData.AddressCity;
+        Model.AddressProvince = resultData.AddressProvince;
+        Model.AddressState = resultData.AddressState;
+        Model.ZipCode = resultData.ZipCode;
+
+        //Set country by address code.
+        Model.AddressCountry = resultData.AddressCountryCode;
+
+        //Address is editable after searching (if the form is editable).
+        ReadOnlyAddress = ReadOnly;
+    }
+
+    #endregion
+
 }

src/Somnia.GuestLog/Components/Forms/GuestDocumentFilterForm.razor

@@ -0,0 +1,41 @@
+@using Somnia.GuestLog.Models.DTOs
+@using Somnia.GuestLog.Services
+
+@inject IDataListService dataListService;
+
+<MudForm Model="@Filter" IsTouchedChanged="@(() => FilterChanged.InvokeAsync(Filter))">
+    <MudStack Row Breakpoint="Breakpoint.LgAndDown" StretchItems="StretchItems.All">
+        <MudStack Row style="margin-block: 0.2em;">
+            <MudSelect @bind-Value="Filter.DocumentType" For="@(() => Filter.DocumentType)"
+                       Label="@LanguageLocale.dto_GuestDocument_DocumentType" FullWidth Clearable>
+                @foreach (string docType in dataListService.GetDataListByName(GuestConsts.DataList_DocumentTypes))
+                {
+                    <MudSelectItem Value="docType">
+                        @dataListService.GetLocalizedValue(GuestConsts.DataList_DocumentTypes, docType)
+                    </MudSelectItem>
+                }
+            </MudSelect>
+            <MudTextField @bind-Value="Filter.DocumentNumber" For="@(() => Filter.DocumentNumber)"
+                          Label="@LanguageLocale.dto_GuestDocument_DocumentNum" FullWidth Clearable />
+        </MudStack>
+        <MudStack Row style="margin-block: 0.2em;">
+            <MudTextField @bind-Value="Filter.Name" For="@(() => Filter.Name)"
+                          Label="@LanguageLocale.dto_GuestDocument_Name" HelperText="@LanguageLocale.general_wildcardHelperText"
+                          HelperTextOnFocus="true" FullWidth Clearable OnBlur="@(() => Filter.Name = Filter.Name?.ToUpper())" />
+            <MudTextField @bind-Value="Filter.Surname" For="@(() => Filter.Surname)"
+                          Label="@LanguageLocale.dto_GuestDocument_Surname"
+                          HelperText="@LanguageLocale.general_wildcardHelperText" HelperTextOnFocus="true" FullWidth Clearable
+                          OnBlur="@(() => Filter.Surname = Filter.Surname?.ToUpper())" />
+        </MudStack>
+    </MudStack>
+</MudForm>
+
+@code {
+
+    [Parameter]
+    public GuestDocFilterDTO Filter { get; set; } = new();
+
+    [Parameter]
+    public EventCallback<GuestDocFilterDTO> FilterChanged { get; set; }
+
+}

src/Somnia.GuestLog/Components/Forms/StayEntryFilterForm.razor

@@ -0,0 +1,44 @@
+@using System.ComponentModel
+@using Somnia.GuestLog.Models.DTOs
+@using Somnia.GuestLog.Services
+
+@inject IDataListService dataListService;
+
+<MudForm Model="@Filter" IsTouchedChanged="@(() => FilterChanged.InvokeAsync(Filter))">
+    <MudStack Row Breakpoint="Breakpoint.LgAndDown" StretchItems="StretchItems.All">
+        <MudStack Row style="margin-block: 0.2em;">
+            <MudDatePicker @bind-Date="Filter.DateInStart" For="@(() => Filter.DateInStart)"
+                           Label="@LanguageLocale.general_dateStart" OpenTo="OpenTo.Date" Editable Required="@DateRequired" />
+            <MudDatePicker @bind-Date="Filter.DateInEnd" For="@(() => Filter.DateInEnd)"
+                           Label="@LanguageLocale.general_dateEnd" OpenTo="OpenTo.Date" Editable Required="@DateRequired" />
+        </MudStack>
+
+        <MudStack Row style="margin-block: 0.2em;">
+            <MudTextField @bind-Value="Filter.RoomNumber" For="@(() => Filter.RoomNumber)"
+                          Label="@LanguageLocale.dto_StayEntry_RoomNumber" FullWidth Clearable />
+            <MudSelect @bind-Value="Filter.PaymentMethod" For="@(() => Filter.PaymentMethod)"
+                       Label="@LanguageLocale.dto_StayEntry_PaymentMethod" FullWidth Clearable>
+                @foreach (string paymentType in
+                    dataListService.GetDataListByName(GuestConsts.DataList_PaymentMethods))
+                {
+                    <MudSelectItem Value="paymentType">
+                        @dataListService.GetLocalizedValue(GuestConsts.DataList_PaymentMethods, paymentType)
+                    </MudSelectItem>
+                }
+            </MudSelect>
+        </MudStack>
+    </MudStack>
+</MudForm>
+
+@code {
+
+    [Parameter, Bindable(true)]
+    public StayEntryFilterDTO Filter { get; set; } = new();
+
+    [Parameter]
+    public EventCallback<StayEntryFilterDTO> FilterChanged { get; set; }
+
+    [Parameter]
+    public bool DateRequired { get; set; } = true;
+
+}

src/Somnia.GuestLog/Components/Forms/StayEntryForm.razor

@@ -0,0 +1,270 @@
+@using System.Diagnostics
+@using FluentValidation;
+@using Somnia.GuestLog.Models.DTOs;
+@using Somnia.GuestLog.Services;
+@using Somnia.GuestLog.Validators;
+
+@inject IDataListService dataListService;
+@inject IValidator<StayEntryDTO> stayValidator;
+@inject IDialogService dialogService;
+@inject IUserMessageService userMessage
+
+
+<MudForm @ref="@_form" Model="@Model" Validation="@((stayValidator as StayEntryDTOValidator)!.ValidateValue)"
+         ReadOnly="@ReadOnly">
+    <MudGrid>
+        <MudItem xs="12" xl=6>
+            <MudPaper Class="pa-4" Elevation="3" Height="100%">
+                <MudText Typo="Typo.subtitle1" Align="Align.Center">
+                    @LanguageLocale.control_StayEntryForm_sectionDetails
+                </MudText>
+                <MudDivider DividerType="DividerType.Middle" Class="mb-4" />
+
+                <MudStack Row style="@FieldMarginY">
+                    <MudDatePicker @ref="_datePickerDateIn" @bind-Date="Model.DateIn" For="@(() => Model.DateIn)"
+                                   Label="@LanguageLocale.dto_StayEntry_DateIn" Clearable OpenTo="OpenTo.Date" Editable
+                                   AutoClose="true" />
+                    <MudTimePicker Time="Model.DateIn?.TimeOfDay" Label=" " Editable
+                                   TimeChanged="@((newVal) => Model.DateIn = GetDateTimeFromDateAndTime(Model.DateIn, newVal))" />
+                    <MudDatePicker @ref="_datePickerDateOut" @bind-Date="Model.DateOut" For="@(() => Model.DateOut)"
+                                   Label="@LanguageLocale.dto_StayEntry_DateOut" Clearable OpenTo="OpenTo.Date" Editable
+                                   AutoClose="true" />
+                    <MudTimePicker Time="Model.DateOut?.TimeOfDay" Label=" " Editable
+                                   TimeChanged="@((newVal) => Model.DateOut = GetDateTimeFromDateAndTime(Model.DateOut, newVal))" />
+                </MudStack>
+                <MudStack Row style="@FieldMarginY">
+                    <MudTextField @bind-Value="Model.RoomCount" For="@(() => Model.RoomCount)"
+                                  Label="@LanguageLocale.dto_StayEntry_RoomCount" InputType="InputType.Number" FullWidth />
+                    <MudTextField @bind-Value="Model.RoomNumber" For="@(() => Model.RoomNumber)"
+                                  Label="@LanguageLocale.dto_StayEntry_RoomNumber" FullWidth />
+
+                    <MudSelect @bind-Value="Model.PaymentMethod" For="@(() => Model.PaymentMethod)"
+                               Label="@LanguageLocale.dto_StayEntry_PaymentMethod" FullWidth>
+                        @foreach (string payment in PaymentMethodSet)
+                        {
+                            <MudSelectItem Value="payment">
+                                @dataListService.GetLocalizedValue(GuestConsts.DataList_PaymentMethods, payment)
+                            </MudSelectItem>
+                        }
+                    </MudSelect>
+                </MudStack>
+            </MudPaper>
+        </MudItem>
+        <MudItem xs="12" xl=6>
+            <MudPaper Class="pa-4" Elevation="3" Height="100%" Width="100%">
+                <MudText Typo="Typo.subtitle1" Align="Align.Center">
+                    @LanguageLocale.control_StayEntryForm_sectionGuests
+                </MudText>
+                <MudDivider DividerType="DividerType.Middle" Class="mb-4" />
+
+                @if (!ReadOnly)
+                {
+                    <MudStack Row style="@FieldMarginY">
+                        <MudButton OnClick="BtnAddGuest" StartIcon="@Icons.Material.Filled.Add">
+                            @LanguageLocale.control_StayEntryForm_btnAddGuest
+                        </MudButton>
+                    </MudStack>
+                }
+
+                <MudTable Items="@Model.GuestDocuments" Hover="true">
+                    <HeaderContent>
+                        <MudTh>@LanguageLocale.dto_GuestDocument_DocumentType</MudTh>
+                        <MudTh>@LanguageLocale.dto_GuestDocument_DocumentNum</MudTh>
+                        <MudTh>@LanguageLocale.dto_GuestDocument_Name</MudTh>
+                        <MudTh>@LanguageLocale.dto_GuestDocument_Surname</MudTh>
+                        <MudTh>@LanguageLocale.dto_GuestDocument_Surname2</MudTh>
+                        <MudTh>@LanguageLocale.general_actions</MudTh>
+                    </HeaderContent>
+                    <RowTemplate>
+                        <MudTd DataLabel="@LanguageLocale.dto_GuestDocument_DocumentType">
+                            @context.DocumentType
+                        </MudTd>
+                        <MudTd DataLabel="@LanguageLocale.dto_GuestDocument_DocumentNum">
+                            @context.DocumentNum
+                        </MudTd>
+                        <MudTd DataLabel="@LanguageLocale.dto_GuestDocument_Name">
+                            @context.Name
+                        </MudTd>
+                        <MudTd DataLabel="@LanguageLocale.dto_GuestDocument_Surname" HideSmall="true">
+                            @context.Surname
+                        </MudTd>
+                        <MudTd DataLabel="@LanguageLocale.dto_GuestDocument_Surname2" HideSmall="true">
+                            @context.Surname2
+                        </MudTd>
+                        @if (!ReadOnly)
+                        {
+                            <MudTd DataLabel="@LanguageLocale.general_actions">
+                                <MudIconButton Icon="@Icons.Material.Filled.Delete"
+                                               OnClick="@(() => BtnDeleteGuest(context.Id!.Value, context.Version!.Value))" />
+                            </MudTd>
+                        }
+                        @if (ReadOnly)
+                        {
+                            <MudTd DataLabel="@LanguageLocale.general_actions">
+                                <MudIconButton Icon="@Icons.Material.Filled.Info"
+                                               OnClick="@(() => BtnViewGuestDetails(context))" />
+                            </MudTd>
+                        }
+                    </RowTemplate>
+                </MudTable>
+
+            </MudPaper>
+        </MudItem>
+    </MudGrid>
+</MudForm>
+
+@code {
+    [Parameter]
+    public StayEntryDTO Model { private get; set; } = new();
+
+    [Parameter, EditorRequired]
+    public FormMode FormMode { get; set; }
+
+
+    private bool ReadOnly => FormMode == FormMode.ReadOnly;
+
+
+    private MudForm _form = null!;
+    private MudDatePicker _datePickerDateIn = null!;
+    private MudDatePicker _datePickerDateOut = null!;
+
+    private const string FieldMarginY = "margin-block: 0.5em";
+    private IEnumerable<string> PaymentMethodSet
+    {
+        get
+        {
+            if (field is null)
+            {
+                field = dataListService.GetDataListByName(GuestConsts.DataList_PaymentMethods);
+            }
+            return field;
+        }
+    }
+
+
+    protected override void OnInitialized()
+    {
+        //Initialize values when not ReadOnly.
+        if (FormMode == FormMode.Create)
+        {
+            Model.DateIn = DateTime.Now;
+
+            DateTime dateOut = DateTime.Today.AddDays(1);
+            Model.DateOut = new(
+                year: dateOut.Year, month: dateOut.Month, day: dateOut.Day,
+                hour: 12, minute: 0, second: 0
+            );
+
+            //Init Guest List
+            Model.GuestDocuments = [];
+        }
+    }
+
+    #region Public Methods
+
+    public async Task<bool> ValidateForm()
+    {
+        await _form.ValidateAsync();
+
+        if (Model.GuestDocuments is null || Model.GuestDocuments.Count == 0)
+        {
+            userMessage.ShowMessage("At least 1 guest is required!", MessageKind.Warning);
+            return false;
+        }
+
+        return _form.IsValid;
+    }
+
+    public StayEntryDTO GetModel()
+    {
+        return Model;
+    }
+
+    #endregion
+
+
+    private static DateTime? GetDateTimeFromDateAndTime(DateTime? date, TimeSpan? time)
+    {
+        DateOnly? dateOnly = date is not null ? DateOnly.FromDateTime(date.Value) : null;
+        TimeOnly? timeOnly = time is not null ? TimeOnly.FromTimeSpan(time.Value) : null;
+
+        if (dateOnly is not null && timeOnly is not null)
+        {
+            return new DateTime(dateOnly.Value, timeOnly.Value);
+        }
+
+        return null;
+    }
+
+    #region Event Handlers
+
+    private async Task BtnAddGuest()
+    {
+        Debug.Assert(Model.GuestDocuments != null);
+
+        DialogOptions dialogOptions = new()
+        {
+            MaxWidth = MaxWidth.Medium,
+            FullWidth = true,
+            BackdropClick = false,
+            CloseOnEscapeKey = true,
+        };
+
+        var dialog = await dialogService.ShowAsync<GuestDocumentSearchDialog>(title: "", options: dialogOptions);
+        DialogResult? result = await dialog.Result;
+
+        if (result is null || result.Canceled)
+        {
+            return;
+        }
+
+        GuestDocumentDTO? resultData = await dialog.GetReturnValueAsync<GuestDocumentDTO>();
+
+        if (resultData is null)
+        {
+            userMessage.ShowMessage("Error! No Guest Document selected!", MessageKind.Error);
+            return;
+        }
+
+        //Check if this guest is already added.
+        if (Model.GuestDocuments.Count > 0)
+        {
+            bool alreadyAdded = Model.GuestDocuments.Any(e => e.Id == resultData.Id);
+            if (alreadyAdded)
+            {
+                userMessage.ShowMessage("GuestDocument already added!", MessageKind.Warning);
+                return;
+            }
+        }
+
+        Model.GuestDocuments.Add(resultData);
+    }
+
+    private void BtnDeleteGuest(long guestDocId, int version)
+    {
+        Debug.Assert(Model.GuestDocuments is not null);
+
+        //Filter out given GuestDocument from model.
+        Model.GuestDocuments = Model.GuestDocuments
+            .Where(e => !(e.Id == guestDocId && e.Version == version))
+            .ToList();
+    }
+
+
+    private async Task BtnViewGuestDetails(GuestDocumentDTO item)
+    {
+        var parameters =
+           new DialogParameters<GuestDocDetailsDialog> { { x => x.DocumentDTO, item } };
+        var options = new DialogOptions()
+        {
+            FullScreen = true,
+            CloseButton = true,
+            CloseOnEscapeKey = true,
+        };
+
+        await dialogService.ShowAsync<GuestDocDetailsDialog>("GuestDoc Details", parameters, options);
+    }
+
+    #endregion
+
+}

src/Somnia.GuestLog/Components/Layout/NavMenu.razor

@@ -1,11 +1,19 @@
-
+<MudNavMenu>
-<MudNavMenu>
     <MudNavLink Href="" Match="NavLinkMatch.All" Icon="@Icons.Material.Filled.Home">Home</MudNavLink>
+
+    @*
     <MudNavLink Href="counter" Match="NavLinkMatch.Prefix" Icon="@Icons.Material.Filled.Add">Counter</MudNavLink>
-    
     <MudNavLink Href="weather" Match="NavLinkMatch.Prefix" Icon="@Icons.Material.Filled.List">Weather</MudNavLink>
+    *@
 
-    <MudNavLink Href="@GuestConsts.Page_GuestDocs_List" Match="NavLinkMatch.Prefix" Icon="@Icons.Material.Filled.DocumentScanner">Guests</MudNavLink>
+    <MudNavLink Href="@GuestConsts.Page_GuestDocs_List" Match="NavLinkMatch.Prefix"
+                Icon="@Icons.Material.Filled.DocumentScanner">
+        @LanguageLocale.navMenu_GuestDocumentList
+    </MudNavLink>
+    <MudNavLink Href="@GuestConsts.Page_StayEntry_List" Match="NavLinkMatch.Prefix" Icon="@Icons.Material.Filled.Book">
+        @LanguageLocale.navMenu_StayEntryList
+    </MudNavLink>
+    <MudNavLink Href="@GuestConsts.Page_StayExport_List" Match="NavLinkMatch.Prefix" Icon="@Icons.Material.Filled.ImportExport">
+        @LanguageLocale.navMenu_StayExport
+    </MudNavLink>
 </MudNavMenu>
-
-

src/Somnia.GuestLog/Components/Pages/DebugPages/AddressQuery.razor

@@ -0,0 +1,115 @@
+@page "/debug/addrSearch"
+
+@using Somnia.GuestLog.Models.DTOs;
+@using Somnia.GuestLog.Services;
+@using Somnia.GuestLog.Services.AddressQuery;
+
+@inject ILogger<AddressQuery> logger;
+@inject IAddressQueryFactory addressQueryFactory;
+@inject IUserMessageService userMessage
+@inject IDialogService DialogService
+
+<PageTitle>DEBUG - Address Query</PageTitle>
+
+<MudText Typo="Typo.h3" GutterBottom="true" Class="mt-2">Address Search</MudText>
+
+<MudPaper Class="ma-2 pa-4">
+    <MudStack Row>
+        <MudTextField @ref="txtSearch" @bind-Value="SearchText" Label="Search address" Required />
+        <MudButton Color="Color.Primary" Variant="Variant.Filled" @onclick="btnSearchAddress" Class="mt-2">Search
+        </MudButton>
+    </MudStack>
+
+    <MudPaper class="mt-2 pa-4">
+        @if (addressResults.Count == 0)
+        {
+            <MudText Typo="Typo.body1">No results!</MudText>
+        }
+        @foreach (AddressResultDTO result in addressResults)
+        {
+            <MudItem>
+                <MudStack>
+                    <MudText>Address: @result.AddressRoad , @result.HouseNumber</MudText>
+                    <MudText>City: @result.AddressCity</MudText>
+                    <MudText>Province: @result.AddressProvince</MudText>
+                    <MudText>State: @result.AddressState</MudText>
+                    <MudText>Country: @result.AddressCountry</MudText>
+                    <MudText>ZipCode: @result.ZipCode</MudText>
+                </MudStack>
+            </MudItem>
+        }
+    </MudPaper>
+</MudPaper>
+
+<MudDivider DividerType="DividerType.FullWidth" />
+
+<MudPaper Class="ma-2 pa-4">
+    <MudButton OnClick="btnOpenSearchDialog" Color="Color.Primary" Variant="Variant.Filled" FullWidth>
+        Open Search Dialog
+    </MudButton>
+
+    @if (dialogSelectedAddress is not null)
+    {
+        <MudPaper class="mt-2 pa-4">
+            <MudText>Selected Address: </MudText>
+            <MudStack>
+                <MudText>Address: @dialogSelectedAddress.AddressRoad , @dialogSelectedAddress.HouseNumber</MudText>
+                <MudText>City: @dialogSelectedAddress.AddressCity</MudText>
+                <MudText>Province: @dialogSelectedAddress.AddressProvince</MudText>
+                <MudText>State: @dialogSelectedAddress.AddressState</MudText>
+                <MudText>Country: @dialogSelectedAddress.AddressCountry</MudText>
+                <MudText>ZipCode: @dialogSelectedAddress.ZipCode</MudText>
+            </MudStack>
+        </MudPaper>
+    }
+</MudPaper>
+
+@code {
+
+    public string SearchText { get; set; } = "";
+    private List<AddressResultDTO> addressResults = [];
+
+    private MudTextField<string> txtSearch = null!;
+
+    private AddressResultDTO? dialogSelectedAddress = null;
+
+    private async Task btnSearchAddress()
+    {
+        if (SearchText.Length == 0)
+        {
+            return;
+        }
+
+        try
+        {
+            var queryService = addressQueryFactory.GetService();
+
+            addressResults = await queryService.SearchAddressAsync(SearchText);
+
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "SearchAddress returned an error!");
+            userMessage.ShowMessage($"Error searching address: {ex.Message}", MessageKind.Error);
+        }
+    }
+
+    private async Task btnOpenSearchDialog()
+    {
+        DialogOptions options = new()
+        {
+            MaxWidth = MaxWidth.Large,
+            FullWidth= true,
+        };
+
+        var dialog = await DialogService.ShowAsync<AddressQueryDialog>("Search Address", options);
+        DialogResult? result = await dialog.Result;
+
+        if (result is not null && !result.Canceled)
+        {
+            AddressResultDTO? resultData = await dialog.GetReturnValueAsync<AddressResultDTO>();
+
+            dialogSelectedAddress = resultData;
+        }
+    }
+}

src/Somnia.GuestLog/Components/Pages/DebugPages/Empty.razor

@@ -0,0 +1,17 @@
+@page "/debug/empty"
+
+@using Somnia.GuestLog.Services
+
+
+@inject ILogger<Empty> logger;
+@inject IUserMessageService userMessage
+@inject IDialogService DialogService
+
+<PageTitle>DEBUG - Empty</PageTitle>
+
+<MudText Typo="Typo.h3" GutterBottom="true" Class="mt-2">Empty Page for Debug</MudText>
+
+
+@code {
+
+}

src/Somnia.GuestLog/Components/Pages/GuestDocuments/GuestDocDetail.razor

@@ -2,23 +2,22 @@
 
 @using Somnia.GuestLog.Models.DTOs;
 @using Somnia.GuestLog.Services;
+@using Microsoft.AspNetCore.WebUtilities;
 
-@inject ISnackbar Snackbar
+@inject IUserMessageService userMessage
 @inject IDialogService DialogService
 @inject NavigationManager Navigation
-@inject IGuestDocumentService guestDocService
+@inject IGuestDocumentEntityService guestDocService
-
+@inject IStayEntryEntityService stayService
-
-@inject FluentValidation.IValidator<GuestDocIdDTO> docIdValidator;
 
 
 <PageTitle>Somnia - Guest Docs - Details</PageTitle>
 
 <MudStack Row="true" Class="my-4">
-    <MudText Typo="Typo.h4" GutterBottom="true">Guest Document - "@docId"</MudText>
+    <MudText Typo="Typo.h4" GutterBottom="true">Guest Document: @docId - @documentModel?.FullDocument</MudText>
     <MudSpacer />
-    <MudButton Variant="Variant.Filled" Color="Color.Success" Size="Size.Small" StartIcon="@Icons.Material.Filled.Add"
+    <MudButton Variant="Variant.Filled" Color="Color.Success" Size="Size.Small" StartIcon="@Icons.Material.Filled.Edit"
-               OnClick="() => BtnEdit()">
+               OnClick="() => BtnEdit()" Disabled>
         @LanguageLocale.general_btnEdit
     </MudButton>
     <MudButton Variant="Variant.Filled" Color="Color.Default" Size="Size.Small"
@@ -29,53 +28,122 @@
 
 @if (documentModel is not null)
 {
-    <GuestDocForm @ref="_form" Model="documentModel" ReadOnly="true" />
+    <MudTabs Elevation="3" Rounded="true" ApplyEffectsToContainer="true" TabPanelsClass="pa-4" KeepPanelsAlive="true"
+             Centered>
+
+        <MudTabPanel Text="Details" Icon="@Icons.Material.Filled.Info">
+            <GuestDocForm @ref="_form" Model="documentModel" ReadOnly="true" />
+        </MudTabPanel>
+
+        <MudTabPanel Text="Stays" ToolTip="Guest stays" OnClick="LoadTabGuestStays" Icon="@Icons.Material.Filled.Bed">
+            <MudText>Total Stays: @(guestStaysLoading ? "Loading..." : guestStayList.Count())</MudText>
+            <MudTable Items="@guestStayList" Hover="true" Loading="@guestStaysLoading" Class="mt-2" Elevation="2">
+                <HeaderContent>
+                    <MudTh>@LanguageLocale.dto_StayEntry_DateIn</MudTh>
+                    <MudTh>@LanguageLocale.dto_StayEntry_DateOut</MudTh>
+                    <MudTh>@LanguageLocale.dto_StayEntry_RoomCount</MudTh>
+                    <MudTh>@LanguageLocale.dto_StayEntry_RoomNumber</MudTh>
+                    <MudTh>@LanguageLocale.general_actions</MudTh>
+                </HeaderContent>
+                <RowTemplate>
+                    <MudTd DataLabel="@LanguageLocale.dto_StayEntry_DateIn">
+                        @context.DateIn
+                    </MudTd>
+                    <MudTd DataLabel="@LanguageLocale.dto_StayEntry_DateOut">
+                        @context.DateOut
+                    </MudTd>
+                    <MudTd DataLabel="@LanguageLocale.dto_StayEntry_RoomCount">
+                        @context.RoomCount
+                    </MudTd>
+                    <MudTd DataLabel="@LanguageLocale.dto_StayEntry_RoomNumber">
+                        @context.RoomNumber
+                    </MudTd>
+                    <MudTd DataLabel="@LanguageLocale.general_actions">
+                        <MudIconButton Icon="@Icons.Material.Filled.Info" OnClick="@(() => BtnViewStayDetails(context))" />
+                    </MudTd>
+                </RowTemplate>
+                <NoRecordsContent>
+                    <MudText>@LanguageLocale.general_noResults</MudText>
+                </NoRecordsContent>
+                <LoadingContent>
+                    <MudSkeleton Height="50px" Class="mx-4" />
+                </LoadingContent>
+            </MudTable>
+        </MudTabPanel>
+
+    </MudTabs>
 }
 
 @code {
 
     [Parameter]
-    public string? docId { get; set; }
+    public long docId { get; set; }
 
     GuestDocForm _form = null!;
 
     GuestDocumentDTO? documentModel = null;
 
 
+    IEnumerable<StayEntryDTO> guestStayList = [];
+    bool guestStaysLoading = true;
+
+
     protected override async Task OnInitializedAsync()
     {
-        if (docId is null)
-        {
-            Snackbar.Add("No GuestDocument provided!!", Severity.Error);
-            Navigation.NotFound();
-            return;
-        }
-
-        GuestDocIdDTO? docIdModel = GuestDocIdDTO.DecodeFromString(docId);
-        if (docIdModel is null)
-        {
-            Snackbar.Add($"Provided GuestDocId can't be decoded: '{docId}'", Severity.Error);
-            Navigation.NotFound();
-            return;
-        }
-
         //Get model from db.
-        documentModel = await guestDocService.GetDtoByIdAsync(docIdModel.DocumentType, docIdModel.DocumentNum);
+        documentModel = await guestDocService.GetLastVersionDtoByIdAsync(docId);
         if (documentModel is null)
         {
-            Snackbar.Add($"GuestDocument not found with ID: '{docId}'", Severity.Error);
+            userMessage.ShowMessage($"GuestDocument not found with ID: '{docId}'", MessageKind.Error);
             Navigation.NotFound();
             return;
         }
     }
 
+    private async Task LoadTabGuestStays()
+    {
+        //Only load when there is no data.
+        if (guestStayList.Count() > 0)
+        {
+            return;
+        }
+
+        if (documentModel is null || documentModel.Id is null || documentModel.Version is null)
+        {
+            throw new InvalidOperationException();
+        }
+
+        guestStaysLoading = true;
+        guestStayList = await stayService.GetStaysWithGuest(documentModel.Id.Value);
+        guestStaysLoading = false;
+    }
+
+
+    #region Event Handlers
+
     private void BtnEdit()
     {
-        Snackbar.Add("Not implemented yet!", Severity.Info);
+        userMessage.ShowMessage("Not implemented yet!", MessageKind.Info);
     }
 
     private void BtnReturn()
     {
         Navigation.NavigateTo(GuestConsts.Page_GuestDocs_List);
     }
+
+
+    private void BtnViewStayDetails(StayEntryDTO item)
+    {
+        string itemId = $"{item.Id ?? -1}";
+        string uri = GuestConsts.Page_StayEntry_Detail.Replace(GuestConsts.Page_StayEntry_Detail_Param_Id, itemId);
+
+        string relativeUri = Navigation.ToBaseRelativePath(Navigation.Uri);
+        uri = QueryHelpers.AddQueryString(uri, [
+            new KeyValuePair<string, string?>(GuestConsts.QueryParam_ReturnUrl, relativeUri)
+        ]);
+        Navigation.NavigateTo(uri);
+    }
+
+    #endregion
+
 }

src/Somnia.GuestLog/Components/Pages/GuestDocuments/GuestDocList.razor

@@ -3,9 +3,9 @@
 @using Somnia.GuestLog.Models.DTOs;
 @using Somnia.GuestLog.Services;
 
-@inject IGuestDocumentService GuestDocService
+@inject IGuestDocumentEntityService GuestDocService
 @inject NavigationManager Navigation
-@inject ISnackbar Snackbar
+@inject IUserMessageService userMessage
 @inject IDialogService DialogService
 @inject IDataListService dataListService;
 
@@ -16,7 +16,7 @@
     <MudText Typo="Typo.h4" GutterBottom="true">@LanguageLocale.page_GuestDocList_pageTitle</MudText>
     <MudSpacer />
     <MudButton Variant="Variant.Filled" Color="Color.Primary" Size="Size.Small"
-               StartIcon="@Icons.Material.Filled.Search" OnClick="() => SearchDataAsync()">
+               StartIcon="@Icons.Material.Filled.Search" OnClick="() => BtnSearchDataAsync()">
         @LanguageLocale.general_btnSearch
     </MudButton>
     <MudButton Variant="Variant.Filled" Color="Color.Primary" Size="Size.Small" StartIcon="@Icons.Material.Filled.Add"
@@ -26,31 +26,7 @@
 </MudStack>
 
 <MudPaper Class="pa-4 my-4" Elevation="2" Height="100%">
-    <MudForm Model="@docFilter">
+    <GuestDocumentFilterForm @bind-Filter="docFilter" />
-        <MudStack Row Breakpoint="Breakpoint.LgAndDown" StretchItems="StretchItems.All">
-            <MudStack Row style="margin-block: 0.2em;">
-                <MudSelect @bind-Value="docFilter.DocumentType" For="@(() => docFilter.DocumentType)"
-                           Label="@LanguageLocale.dto_GuestDocument_DocumentType">
-                    @foreach (string docType in dataListService.GetDataListByName(GuestConsts.DataList_DocumentTypes))
-                    {
-                        <MudSelectItem Value="docType">
-                            @dataListService.GetLocalizedValue(GuestConsts.DataList_DocumentTypes, docType)
-                        </MudSelectItem>
-                    }
-                </MudSelect>
-                <MudTextField @bind-Value="docFilter.DocumentNumber" For="@(() => docFilter.DocumentNumber)"
-                              Label="@LanguageLocale.dto_GuestDocument_DocumentNum" />
-            </MudStack>
-            <MudStack Row style="margin-block: 0.2em;">
-                <MudTextField @bind-Value="docFilter.Name" For="@(() => docFilter.Name)"
-                              Label="@LanguageLocale.dto_GuestDocument_Name"
-                              HelperText="@LanguageLocale.general_wildcardHelperText" HelperTextOnFocus="true" />
-                <MudTextField @bind-Value="docFilter.Surname" For="@(() => docFilter.Surname)"
-                              Label="@LanguageLocale.dto_GuestDocument_Surname"
-                              HelperText="@LanguageLocale.general_wildcardHelperText" HelperTextOnFocus="true" />
-            </MudStack>
-        </MudStack>
-    </MudForm>
 </MudPaper>
 
 <MudDataGrid @ref="_dataGrid" T="GuestDocumentDTO" Items="@guestDocList" Loading="@_dataLoading" ReadOnly="true"
@@ -58,7 +34,7 @@
     <ToolBarContent>
         <MudText Typo="Typo.subtitle1">@LanguageLocale.page_GuestDocList_documentList</MudText>
         <MudStack Class="ml-auto" Row="true" AlignItems="AlignItems.Center">
-            <MudCheckBox @bind-Value="_showAllData" Label="@LanguageLocale.page_GuestDocList_showAllElements"
+            <MudCheckBox @bind-Value="_showAllData" Label="@LanguageLocale.general_showAllElements"
                          LabelPlacement="Placement.Start" />
             <MudButton StartIcon="@Icons.Material.Outlined.ViewColumn" Variant="Variant.Outlined" Size="Size.Small"
                        OnClick="(args) => BtnConfigureColumnsClick(args)">
@@ -67,6 +43,8 @@
         </MudStack>
     </ToolBarContent>
     <Columns>
+        <PropertyColumn Property="x => x.Id" Title="@LanguageLocale.dto_GuestDocument_Id" />
+        <PropertyColumn Property="x => x.Version" Title="@LanguageLocale.dto_GuestDocument_Version" />
         <PropertyColumn Title="@LanguageLocale.dto_GuestDocument_DocumentType"
                         Property="x => dataListService.GetLocalizedValue(GuestConsts.DataList_DocumentTypes, x.DocumentType)"
                         Hideable="false" />
@@ -74,6 +52,7 @@
                         Title="@LanguageLocale.dto_GuestDocument_DocumentNum" />
         <PropertyColumn Property="x => x.Name" Title="@LanguageLocale.dto_GuestDocument_Name" />
         <PropertyColumn Property="x => x.Surname" Title="@LanguageLocale.dto_GuestDocument_Surname" />
+        <PropertyColumn Property="x => x.Surname2" Title="@LanguageLocale.dto_GuestDocument_Surname2" />
         <PropertyColumn Title="@LanguageLocale.dto_GuestDocument_Nationality"
                         Property="x => dataListService.GetLocalizedValue(GuestConsts.DataList_CountryCodes, x.Nationality)" />
         <PropertyColumn Property="x => x.UpdateTime" Title="@LanguageLocale.dto_GuestDocument_UpdateTime" />
@@ -93,17 +72,7 @@
     </PagerContent>
 </MudDataGrid>
 
-<MudMessageBox @ref="_msgBoxConfirmDelete" Title="@LanguageLocale.general_confirmTitle"
+<ConfirmDeleteMsgBox @ref="_msgBoxConfirmDelete" />
-               CancelText="@LanguageLocale.general_btnCancel">
-    <MessageContent>
-        @LanguageLocale.general_confirmDeleteMsg
-    </MessageContent>
-    <YesButton>
-        <MudButton Variant="Variant.Filled" Color="Color.Error" StartIcon="@Icons.Material.Filled.DeleteForever">
-            @LanguageLocale.general_btnDelete
-        </MudButton>
-    </YesButton>
-</MudMessageBox>
 
 
 @code {
@@ -116,7 +85,7 @@
     private GuestDocFilterDTO docFilter = new GuestDocFilterDTO();
 
     private MudDataGrid<GuestDocumentDTO> _dataGrid = null!;
-    private MudMessageBox _msgBoxConfirmDelete = null!;
+    private ConfirmDeleteMsgBox _msgBoxConfirmDelete = null!;
 
         
     protected override async Task OnInitializedAsync()
@@ -126,14 +95,6 @@
 
     #region Data Loading
 
-    private async Task SearchDataAsync()
-    {
-        docFilter.Name = docFilter.Name?.ToUpper();
-        docFilter.Surname = docFilter.Surname?.ToUpper();
-
-        await LoadDataAsync();
-    }
-
     private async Task LoadDataAsync(bool showMsg = true)
     {
         _dataLoading = true;
@@ -143,7 +104,7 @@
 
         if (showMsg)
         {
-            Snackbar.Add("Data loaded from DB", Severity.Info, o => o.VisibleStateDuration = 1000);
+            userMessage.ShowMessage("Data loaded from DB", MessageKind.Info);
         }
         _dataLoading = false;
     }
@@ -152,43 +113,47 @@
 
     #region Event Handlers
 
+    private async Task BtnSearchDataAsync()
+    {
+        docFilter.Name = docFilter.Name?.ToUpper();
+        docFilter.Surname = docFilter.Surname?.ToUpper();
+
+        await LoadDataAsync();
+    }
+
     private async Task BtnConfigureColumnsClick(MouseEventArgs args)
     {
         _dataGrid.ShowColumnsPanel(args);
     }
 
+
     private async Task BtnViewDetails(GuestDocumentDTO item)
     {
-        var parameters =
+        string strId = item.Id?.ToString() ?? throw new InvalidOperationException();
-            new DialogParameters<GuestDocDetailsDialog> { { x => x.DocumentDTO, item } };
-        var options = new DialogOptions()
-        {
-            FullScreen = true,
-            CloseButton = true,
-            CloseOnEscapeKey = true,
-        };
 
-        await DialogService.ShowAsync<GuestDocDetailsDialog>("GuestDoc Details", parameters, options);
+        string uri = GuestConsts.Page_GuestDocs_Detail.Replace(GuestConsts.Page_GuestDocs_Detail_Param_DocId, strId);
+        Navigation.NavigateTo(uri);
     }
 
     private async Task BtnDeleteItem(GuestDocumentDTO item)
     {
-        bool? confirmDelete = await _msgBoxConfirmDelete.ShowAsync();
+        bool? confirmDelete = await _msgBoxConfirmDelete.MsgBox.ShowAsync();
 
         if (confirmDelete is null || confirmDelete.Value == false)
         {
             return;
         }
 
-        bool deleted = await GuestDocService.DeleteDocumentAsync(item);
+        Result deleteResult = await GuestDocService.DeleteDocumentAsync(item);
-        if (!deleted)
+        if (!deleteResult.IsSuccess)
         {
-            Snackbar.Add($"Error deleting document {item.DocumentType}-{item.DocumentNum}", Severity.Error);
+            string errorMsg = $"Error deleting document {item.DocumentType}-{item.DocumentNum}";
+            userMessage.ShowResultWithMessage(deleteResult, errorMsg);
             return;
         }
 
-        Snackbar.Add($"Document {item.DocumentType}-{item.DocumentNum} deleted!", Severity.Success);
+        userMessage.ShowMessage($"Document {item.DocumentType}-{item.DocumentNum} deleted!", MessageKind.Success);
-        await LoadDataAsync();
+        await LoadDataAsync(showMsg: false);
     }
 
     private void BtnNewGuest()

src/Somnia.GuestLog/Components/Pages/GuestDocuments/GuestDocNew.razor

@@ -4,10 +4,10 @@
 @using Somnia.GuestLog.Services;
 @using Somnia.GuestLog.Validators;
 
-@inject ISnackbar Snackbar
+@inject IUserMessageService userMessage
 @inject IDialogService DialogService
 @inject NavigationManager Navigation
-@inject IGuestDocumentService guestDocService
+@inject IGuestDocumentEntityService guestDocService
 @inject IDataListService dataListService;
 
 @inject FluentValidation.IValidator<GuestDocIdDTO> docIdValidator;
@@ -82,6 +82,7 @@
 
     ePageMode currentPageMode = ePageMode.selectDocId;
     GuestDocIdDTO currentDocId = new() { DocumentNum = "", DocumentType = "" };
+    long? alreadyExistDocId = null;
     GuestDocumentDTO newDocumentModel = new();
 
     bool loadingDocId = false;
@@ -100,7 +101,8 @@
         }
 
         loadingDocId = true;
-        GuestDocumentDTO? dto = await guestDocService.GetDtoByIdAsync(currentDocId.DocumentType, currentDocId.DocumentNum);
+        GuestDocumentDTO? dto =
+            await guestDocService.GetLastVersionDtoByDocumentAsync(currentDocId.DocumentType, currentDocId.DocumentNum);
         loadingDocId = false;
 
         if (dto is null)
@@ -117,6 +119,7 @@
 
         //GuestDoc already exists!
         currentPageMode = ePageMode.alreadyExistDoc;
+        alreadyExistDocId = dto.Id;
     }
 
     private void BtnReturn()
@@ -129,39 +132,39 @@
         bool isFormValid = await _form.ValidateForm();
         if (!isFormValid)
         {
-            Snackbar.Add("Invalid Form!", Severity.Error);
+            userMessage.ShowMessage("Invalid Form!", MessageKind.Warning);
             return;
         }
 
         GuestDocumentDTO model = _form.Model;
 
-        Snackbar.Add($"Document '{model.DocumentNum}' creating...", Severity.Info);
-
         //Show Loading dialog...
         var loadingDialog = await DialogService.ShowAsync<LoadingDialog>();
 
-        bool isCreated = await guestDocService.CreateDocumentAsync(model);
+        Result createResult = await guestDocService.CreateDocumentAsync(model);
-        if (!isCreated)
+        if (!createResult.IsSuccess)
         {
-            Snackbar.Add($"Error creating Document '{model.DocumentNum}'", Severity.Error);
+            string errorMsg = $"Error creating Document '{model.DocumentNum}'";
+            userMessage.ShowResultWithMessage(createResult, errorMsg);
             loadingDialog.Close();
             return;
         }
 
-        Snackbar.Add($"Document '{model.DocumentNum}' Created!", Severity.Success);
+        userMessage.ShowMessage($"Document '{model.DocumentNum}' Created!", MessageKind.Success);
         Navigation.NavigateTo(GuestConsts.Page_GuestDocs_List);
     }
 
     private void BtnGoToDocument()
     {
-        if (currentPageMode != ePageMode.alreadyExistDoc)
+        if (currentPageMode != ePageMode.alreadyExistDoc || alreadyExistDocId is null)
         {
-            Snackbar.Add("Invalid operation!", Severity.Error);
+            userMessage.ShowMessage("Invalid operation!", MessageKind.Error);
             return;
         }
 
-        string docId = GuestDocIdDTO.EncodeAsString(currentDocId);
+
-        string uri = GuestConsts.Page_GuestDocs_Detail.Replace("{docId}", docId);
+        string strId = alreadyExistDocId.Value.ToString();
+        string uri = GuestConsts.Page_GuestDocs_Detail.Replace(GuestConsts.Page_GuestDocs_Detail_Param_DocId, strId);
         Navigation.NavigateTo(uri);
     }
 

src/Somnia.GuestLog/Components/Pages/StayEntries/StayEntryDetail.razor

@@ -0,0 +1,91 @@
+@attribute [Route($"{GuestConsts.Page_StayEntry_Detail}")]
+
+@using Somnia.GuestLog.Models.DTOs;
+@using Somnia.GuestLog.Services;
+
+@inject IUserMessageService userMessage
+@inject IDialogService DialogService
+@inject NavigationManager Navigation
+@inject IGuestDocumentEntityService guestDocService
+@inject IStayEntryEntityService stayService
+
+
+<PageTitle>Somnia - Guest Docs - Details</PageTitle>
+
+<MudStack Row="true" Class="my-4">
+    <MudText Typo="Typo.h4" GutterBottom="true">Stay Entry - "@StayId"</MudText>
+    <MudSpacer />
+    <MudButton Variant="Variant.Filled" Color="Color.Success" Size="Size.Small" StartIcon="@Icons.Material.Filled.Edit"
+               OnClick="() => BtnEdit()" Disabled>
+        @LanguageLocale.general_btnEdit
+    </MudButton>
+    <MudButton Variant="Variant.Filled" Color="Color.Default" Size="Size.Small"
+               StartIcon="@Icons.Material.Filled.ArrowBack" OnClick="() => BtnReturn()">
+        @LanguageLocale.general_btnReturn
+    </MudButton>
+</MudStack>
+
+@if (stayModel is not null)
+{
+    <StayEntryForm Model="stayModel" FormMode="FormMode.ReadOnly" />
+    <MudText Class="mt-4">@CreateTimeString</MudText>
+}
+
+
+@code {
+
+    [Parameter]
+    public long StayId { get; set; }
+
+    [SupplyParameterFromQuery(Name = GuestConsts.QueryParam_ReturnUrl)]
+    public string? ReturnUrl { get; set; }
+
+    StayEntryDTO? stayModel = null;
+
+    private string? CreateTimeString
+    {
+        get
+        {
+            if (stayModel is null)
+            {
+                return null;
+            }
+
+            List<string> textList = [];
+            textList.Add($"Created at: {stayModel.CreateTime?.ToString() ?? "???"}");
+            textList.Add($"Last Update Time: {stayModel.UpdateTime?.ToString() ?? "???"}");
+            return string.Join("; ", textList);
+        }
+    }
+
+    protected override async Task OnInitializedAsync()
+    {
+        @* if (StayId is default)
+        {
+            Snackbar.Add("No Id provided!!", Severity.Error);
+            Navigation.NotFound();
+            return;
+        } *@
+
+        //Get model from db.
+        stayModel = await stayService.GetDtoByIdAsync(StayId, queryConfig: new(IncludeGuests: true));
+        if (stayModel is null)
+        {
+            userMessage.ShowMessage($"Stay not found with ID: '{StayId}'", MessageKind.Error);
+            Navigation.NotFound();
+            return;
+        }
+    }
+
+    private void BtnEdit()
+    {
+        userMessage.ShowMessage("Not implemented yet!", MessageKind.Info);
+    }
+
+    private void BtnReturn()
+    {
+        string uri = ReturnUrl ?? GuestConsts.Page_StayEntry_List;
+        Navigation.NavigateTo(uri);
+    }
+
+}

src/Somnia.GuestLog/Components/Pages/StayEntries/StayEntryList.razor

@@ -0,0 +1,148 @@
+@attribute [Route($"{GuestConsts.Page_StayEntry_List}")]
+
+@using Somnia.GuestLog.Models.DTOs;
+@using Somnia.GuestLog.Services;
+
+@inject IStayEntryEntityService StayEntryService
+@inject NavigationManager Navigation
+@inject IUserMessageService userMessage
+@inject IDialogService DialogService
+@inject IDataListService dataListService;
+
+<PageTitle>Somnia - Stay Entries</PageTitle>
+
+<MudStack Row="true" Class="my-4">
+    <MudText Typo="Typo.h4" GutterBottom="true">@LanguageLocale.page_StayEntryList_pageTitle</MudText>
+    <MudSpacer />
+    <MudButton Variant="Variant.Filled" Color="Color.Primary" Size="Size.Small"
+               StartIcon="@Icons.Material.Filled.Search" OnClick="() => BtnSearchDataAsync()">
+        @LanguageLocale.general_btnSearch
+    </MudButton>
+    <MudButton Variant="Variant.Filled" Color="Color.Primary" Size="Size.Small" StartIcon="@Icons.Material.Filled.Add"
+               OnClick="() => BtnNewStay()">
+        @LanguageLocale.page_StayEntryList_btnNewStay
+    </MudButton>
+</MudStack>
+
+<MudPaper Class="pa-4 my-4" Elevation="2" Height="100%">
+    <StayEntryFilterForm @bind-Filter="stayFilter" />
+</MudPaper>
+
+<MudDataGrid @ref="_dataGrid" T="StayEntryDTO" Items="@stayEntryList" Loading="@_dataLoading" ReadOnly="true"
+             Elevation="2">
+    <ToolBarContent>
+        <MudText Typo="Typo.subtitle1">@LanguageLocale.page_StayEntryList_entryList</MudText>
+        <MudStack Class="ml-auto" Row="true" AlignItems="AlignItems.Center">
+            <MudCheckBox @bind-Value="_showAllData" Label="@LanguageLocale.general_showAllElements"
+                         LabelPlacement="Placement.Start" />
+        </MudStack>
+    </ToolBarContent>
+    <Columns>
+        <PropertyColumn Property="x => x.Id" Hideable="false" Title="@LanguageLocale.dto_StayEntry_Id" />
+        <PropertyColumn Property="x => x.DateIn" Title="@LanguageLocale.dto_StayEntry_DateIn" />
+        <PropertyColumn Property="x => x.DateOut" Title="@LanguageLocale.dto_StayEntry_DateOut" />
+        <PropertyColumn Property="x => x.RoomNumber" Title="@LanguageLocale.dto_StayEntry_RoomNumber" />
+        <PropertyColumn Title="@LanguageLocale.dto_StayEntry_PaymentMethod"
+                        Property="x => dataListService.GetLocalizedValue(GuestConsts.DataList_PaymentMethods, x.PaymentMethod)" />
+
+        <PropertyColumn Property="x => x.UpdateTime" Title="@LanguageLocale.dto_GuestDocument_UpdateTime" />
+
+        <TemplateColumn CellClass="d-flex justify-between" Title="Options" StickyRight Hideable="false"
+                        ShowColumnOptions="false">
+            <CellTemplate>
+                <MudIconButton Size="@Size.Small" Icon="@Icons.Material.Outlined.Info"
+                               OnClick="() => BtnViewDetails(context.Item)" />
+                <MudIconButton Size="@Size.Small" Icon="@Icons.Material.Outlined.Delete"
+                               OnClick="() => BtnDeleteItem(context.Item)" />
+            </CellTemplate>
+        </TemplateColumn>
+    </Columns>
+    <PagerContent>
+        <MudDataGridPager T="StayEntryDTO" />
+    </PagerContent>
+</MudDataGrid>
+
+<ConfirmDeleteMsgBox @ref="_confirmDeleteMsgBox" />
+
+@code {
+
+    private bool _dataLoading = true;
+    private bool _showAllData = false;
+    private const int resultLimit = 200;
+
+    private StayEntryFilterDTO stayFilter = new StayEntryFilterDTO()
+    {
+        DateInStart = DateTime.Today.AddDays(-14),
+        DateInEnd = DateTime.Today.AddDays(1),
+    };
+
+    private IEnumerable<StayEntryDTO> stayEntryList = [];
+
+    private MudDataGrid<StayEntryDTO> _dataGrid = null!;
+    private ConfirmDeleteMsgBox _confirmDeleteMsgBox = null!;
+
+
+    protected override async Task OnInitializedAsync()
+    {
+        await LoadDataAsync(showMsg: false);
+    }
+
+    private async Task LoadDataAsync(bool showMsg = true)
+    {
+        _dataLoading = true;
+
+        int dataLimit = _showAllData ? 0 : resultLimit;
+        stayEntryList = await StayEntryService.GetDtoListByFilterAsync(filter: stayFilter, limit: dataLimit);
+
+        if (showMsg)
+        {
+            userMessage.ShowMessage("Data loaded from DB", MessageKind.Info);
+        }
+        _dataLoading = false;
+    }
+
+
+    #region Event Handlers
+
+    private async Task BtnSearchDataAsync()
+    {
+        await LoadDataAsync();
+    }
+
+    private void BtnNewStay()
+    {
+        Navigation.NavigateTo(GuestConsts.Page_StayEntry_New);
+    }
+
+
+    private async Task BtnViewDetails(StayEntryDTO item)
+    {
+        string itemId = item.Id?.ToString() ?? throw new InvalidOperationException();
+        string uri = GuestConsts.Page_StayEntry_Detail.Replace(GuestConsts.Page_StayEntry_Detail_Param_Id, itemId);
+        Navigation.NavigateTo(uri);
+    }
+
+    private async Task BtnDeleteItem(StayEntryDTO item)
+    {
+        bool? confirmDelete = await _confirmDeleteMsgBox.MsgBox.ShowAsync();
+
+        if (confirmDelete is null || confirmDelete.Value == false)
+        {
+            return;
+        }
+
+        Result deleteResult = await StayEntryService.DeleteEntryAsync(item);
+        if (!deleteResult.IsSuccess)
+        {
+            string errorMsg = $"Error deleting Stay {item.Id}";
+            userMessage.ShowResultWithMessage(deleteResult, errorMsg);
+            return;
+        }
+
+        userMessage.ShowMessage($"Stay {item.Id} deleted!", MessageKind.Success);
+        await LoadDataAsync();
+    }
+
+    #endregion
+
+}

src/Somnia.GuestLog/Components/Pages/StayEntries/StayEntryNew.razor

@@ -0,0 +1,67 @@
+@attribute [Route($"{GuestConsts.Page_StayEntry_New}")]
+
+@using Somnia.GuestLog.Models.DTOs;
+@using Somnia.GuestLog.Services;
+
+
+@inject IUserMessageService userMessage
+@inject IDialogService DialogService
+@inject NavigationManager Navigation
+@inject IStayEntryEntityService stayService
+@inject IDataListService dataListService;
+
+<PageTitle>Somnia - Stay Entries - New</PageTitle>
+
+<MudStack Row="true" Class="my-4">
+    <MudText Typo="Typo.h4" GutterBottom="true">
+        @LanguageLocale.page_StayEntryNew_pageTitle
+    </MudText>
+    <MudSpacer />
+    <MudButton Variant="Variant.Filled" Color="Color.Success" Size="Size.Small" StartIcon="@Icons.Material.Filled.Add"
+               OnClick="() => BtnSaveStay()">
+        @LanguageLocale.general_btnCreate
+    </MudButton>
+    <MudButton Variant="Variant.Filled" Color="Color.Default" Size="Size.Small"
+               StartIcon="@Icons.Material.Filled.ArrowBack" OnClick="() => BtnReturn()">
+        @LanguageLocale.general_btnReturn
+    </MudButton>
+</MudStack>
+
+<StayEntryForm @ref="_form" Model="@newStayModel" FormMode="FormMode.Create" />
+
+@code {
+    StayEntryForm _form = null!;
+
+    StayEntryDTO newStayModel = new();
+
+
+    private void BtnReturn()
+    {
+        Navigation.NavigateTo(GuestConsts.Page_StayEntry_List);
+    }
+
+    private async Task BtnSaveStay()
+    {
+        bool isFormValid = await _form.ValidateForm();
+        if (!isFormValid)
+        {
+            userMessage.ShowMessage("Invalid Form!", MessageKind.Warning);
+            return;
+        }
+
+        var loadingDialog = await DialogService.ShowAsync<LoadingDialog>();
+
+        StayEntryDTO model = _form.GetModel();
+        Result createResult = await stayService.CreateEntryAsync(model);
+        if (!createResult.IsSuccess)
+        {
+            userMessage.ShowResultWithMessage(createResult, $"Error creating StayEntry");
+            loadingDialog.Close();
+            return;
+        }
+
+        userMessage.ShowMessage($"StayEntry Created!", MessageKind.Success);
+        Navigation.NavigateTo(GuestConsts.Page_StayEntry_List);
+    }
+
+}

src/Somnia.GuestLog/Components/Pages/StayExport/StayExportList.razor

@@ -0,0 +1,197 @@
+@attribute [Route($"{GuestConsts.Page_StayExport_List}")]
+
+@using System.Text.Json;
+@using Somnia.GuestLog.Models.DTOs;
+@using Somnia.GuestLog.Services;
+@using Somnia.GuestLog.Services.StayExport;
+
+@inject IStayExportFileEntityService stayExportEntityService
+@inject NavigationManager Navigation
+@inject IUserMessageService userMessage
+@inject IDialogService DialogService
+@inject IDataListService dataListService;
+@inject ILocalizerService Localizer;
+
+@inject IStayExportService ExportService;
+@inject IJSRuntime JS
+
+
+<PageTitle>Somnia - Stay Export Files</PageTitle>
+
+<MudStack Row="true" Class="my-4">
+    <MudText Typo="Typo.h4" GutterBottom="true">@LanguageLocale.page_StayExportList_pageTitle</MudText>
+    <MudSpacer />
+    <MudButton Variant="Variant.Filled" Color="Color.Primary" Size="Size.Small"
+               StartIcon="@Icons.Material.Filled.Search" OnClick="() => BtnSearchDataAsync()">
+        @LanguageLocale.general_btnSearch
+    </MudButton>
+    <MudButton Variant="Variant.Filled" Color="Color.Primary" Size="Size.Small" StartIcon="@Icons.Material.Filled.Add"
+               OnClick="() => BtnNewExport()">
+        @LanguageLocale.page_StayExportList_btnNewExport
+    </MudButton>
+</MudStack>
+
+@* <MudPaper Class="pa-4 my-4" Elevation="2" Height="100%">
+    FILTER
+</MudPaper> *@
+
+<MudDataGrid @ref="_dataGrid" T="StayExportFileDTO" Items="@stayExportList" Loading="@_dataLoading" ReadOnly="true"
+             Elevation="2">
+    <ToolBarContent>
+        <MudText Typo="Typo.subtitle1">@LanguageLocale.page_StayExportList_exportList</MudText>
+    </ToolBarContent>
+    <Columns>
+        <PropertyColumn Property="x => x.Id" Hideable="false" Title="@LanguageLocale.dto_StayExportFile_Id" />
+        <PropertyColumn Property="x => Localizer.GetEnumValue(x.ExportFormat)"
+                        Title="@LanguageLocale.dto_StayExportFile_ExportFormat" />
+        <TemplateColumn Title="@LanguageLocale.dto_StayExportFile_ExportParams">
+            <CellTemplate>
+                <MudIconButton Size="@Size.Small" Icon="@Icons.Material.Outlined.Info"
+                               OnClick="() => ShowExportParams(context.Item)" />
+            </CellTemplate>
+        </TemplateColumn>
+        <PropertyColumn Property="x => Localizer.GetEnumValue(x.ExportResult)"
+                        Title="@LanguageLocale.dto_StayExportFile_ExportResult" />
+        <PropertyColumn Property="x => x.ExportTime" Title="@LanguageLocale.dto_StayExportFile_ExportTime" />
+        <TemplateColumn Title="@LanguageLocale.dto_StayExportFile_ExportDetails">
+            <CellTemplate>
+                <MudIconButton Size="@Size.Small" Icon="@Icons.Material.Outlined.Info"
+                               OnClick="() => ShowExportDetails(context.Item)" />
+            </CellTemplate>
+        </TemplateColumn>
+
+        <TemplateColumn CellClass="d-flex justify-between" Title="Options" StickyRight Hideable="false"
+                        ShowColumnOptions="false">
+            <CellTemplate>
+                <MudIconButton Size="@Size.Small" Icon="@Icons.Material.Outlined.Download"
+                               OnClick="() => BtnDownloadFile(context.Item)" />
+                <MudIconButton Size="@Size.Small" Icon="@Icons.Material.Outlined.Delete"
+                               OnClick="() => BtnDeleteItem(context.Item)" />
+            </CellTemplate>
+        </TemplateColumn>
+    </Columns>
+    <PagerContent>
+        <MudDataGridPager T="StayExportFileDTO" />
+    </PagerContent>
+</MudDataGrid>
+
+<ConfirmDeleteMsgBox @ref="_confirmDeleteMsgBox" />
+
+@code {
+    private bool _dataLoading = true;
+    private const int resultLimit = 200;
+
+    private IEnumerable<StayExportFileDTO> stayExportList = [];
+
+    private MudDataGrid<StayExportFileDTO> _dataGrid = null!;
+    private ConfirmDeleteMsgBox _confirmDeleteMsgBox = null!;
+
+
+    protected override async Task OnInitializedAsync()
+    {
+        await LoadDataAsync(showMsg: false);
+    }
+
+    private async Task LoadDataAsync(bool showMsg = true)
+    {
+        _dataLoading = true;
+
+        stayExportList = await stayExportEntityService.GetDtoListAsync(limit: resultLimit);
+
+        if (showMsg)
+        {
+            userMessage.ShowMessage("Data loaded from DB", MessageKind.Info);
+        }
+        _dataLoading = false;
+    }
+
+
+    #region Event Handlers
+
+    private async Task BtnSearchDataAsync()
+    {
+        await LoadDataAsync();
+    }
+
+    private void BtnNewExport()
+    {
+        Navigation.NavigateTo(GuestConsts.Page_StayExport_New);
+    }
+
+
+    private async Task ShowExportParams(StayExportFileDTO dto)
+    {
+        string jsonParams = JsonSerializer.Serialize(dto.ExportParams, options: new() { WriteIndented = true });
+
+        await DialogService.ShowMessageBoxAsync("Details", (MarkupString)$"<pre>{jsonParams}</pre>");
+    }
+
+    private async Task ShowExportDetails(StayExportFileDTO dto)
+    {
+        if (string.IsNullOrEmpty(dto.ExportDetails))
+        {
+            userMessage.ShowMessage("This ExportFile doesn't have any export details", MessageKind.Info);
+            return;
+        }
+
+        using var jDoc = JsonDocument.Parse(dto.ExportDetails);
+        string jsonDetails = JsonSerializer.Serialize(jDoc, new JsonSerializerOptions { WriteIndented = true });
+
+        await DialogService.ShowMessageBoxAsync("Details", (MarkupString)$"<pre>{jsonDetails}</pre>");
+    }
+
+    private async Task BtnDownloadFile(StayExportFileDTO item)
+    {
+        if (item.ExportResult == Enums.Models.StayExportFileResult.NoData)
+        {
+            userMessage.ShowMessage("A Export without data can't be downloaded!", MessageKind.Warning);
+            return;
+        }
+
+        if (string.IsNullOrEmpty(item.ExportedPath))
+        {
+            userMessage.ShowMessage("File can't be downloaded: no path found!", MessageKind.Warning);
+            return;
+        }
+
+        using Stream objectStream = new MemoryStream();
+        Result loadResult = await ExportService.GetExportedFileAsync(item, objectStream);
+        if (!loadResult.IsSuccess)
+        {
+            userMessage.ShowResultWithMessage(loadResult, "Exported File can't be downloaded");
+            return;
+        }
+
+        objectStream.Seek(0, SeekOrigin.Begin);
+
+        using var streamRef = new DotNetStreamReference(stream: objectStream);
+
+        var fileName = Path.GetFileName(item.ExportedPath);
+        await JS.InvokeVoidAsync("downloadFileFromStream", fileName, streamRef);
+        userMessage.ShowMessage("Exported File downloaded!", MessageKind.Success);
+    }
+
+    private async Task BtnDeleteItem(StayExportFileDTO item)
+    {
+        bool? confirmDelete = await _confirmDeleteMsgBox.MsgBox.ShowAsync();
+
+        if (confirmDelete is null || confirmDelete.Value == false)
+        {
+            return;
+        }
+
+        Result deleteResult = await ExportService.DeleteExportedFileAsync(item);
+        if (!deleteResult.IsSuccess)
+        {
+            string errorMsg = $"Error deleting Export file {item.Id}";
+            userMessage.ShowResultWithMessage(deleteResult, errorMsg);
+            return;
+        }
+
+        userMessage.ShowMessage($"Export file {item.Id} deleted!", MessageKind.Success);
+        await LoadDataAsync();
+    }
+
+    #endregion
+
+}

src/Somnia.GuestLog/Components/Pages/StayExport/StayExportNew.razor

@@ -0,0 +1,162 @@
+@attribute [Route($"{GuestConsts.Page_StayExport_New}")]
+
+@using FluentValidation;
+@using Somnia.GuestLog.Models.DTOs;
+@using Somnia.GuestLog.Enums.Models;
+@using Somnia.GuestLog.Services;
+@using Somnia.GuestLog.Validators;
+@using Somnia.GuestLog.Services.StayExport;
+
+
+@inject IUserMessageService userMessage
+@inject IDialogService DialogService
+@inject NavigationManager Navigation
+@inject IValidator<StayExportParamsDTO> ExportParamsValidator;
+@inject ILocalizerService Localizer;
+@inject IStayExportService ExportService;
+
+@inject IJSRuntime JS
+
+
+<PageTitle>Somnia - Stay Export - New</PageTitle>
+
+<MudStack Row="true" Class="my-4">
+    <MudText Typo="Typo.h4" GutterBottom="true">
+        @LanguageLocale.page_StayExportNew_pageTitle
+    </MudText>
+    <MudSpacer />
+    <MudButton Variant="Variant.Filled" Color="Color.Success" Size="Size.Small" StartIcon="@Icons.Material.Filled.Add"
+               OnClick="() => BtnCreateExport()" Disabled="@_isExported">
+        @LanguageLocale.general_btnCreate
+    </MudButton>
+    <MudButton Variant="Variant.Filled" Color="Color.Default" Size="Size.Small"
+               StartIcon="@Icons.Material.Filled.ArrowBack" OnClick="() => BtnReturn()">
+        @LanguageLocale.general_btnReturn
+    </MudButton>
+</MudStack>
+
+<MudForm @ref="@_form" Model="@exportParams"
+         Validation="@((ExportParamsValidator as StayExportParamsDTOValidator)!.ValidateValue)" ReadOnly="@_isExported">
+    <MudPaper Class="pa-4 my-4" Elevation="3" Height="100%">
+        <MudStack Row style="margin-block: 0.2em;">
+            <MudSelect @bind-Value="exportFormat" Label="@LanguageLocale.dto_StayExportFile_ExportFormat" FullWidth
+                       Clearable>
+                @foreach (StayExportFormat option in Enum.GetValues<StayExportFormat>())
+                {
+                    <MudSelectItem Value="new Nullable<StayExportFormat>(option)">
+                        @Localizer.GetEnumValue(option)
+                    </MudSelectItem>
+                }
+            </MudSelect>
+            <MudSelect @bind-Value="exportParams.ExportType" For="@(() => exportParams.ExportType)"
+                       Label="@LanguageLocale.dto_StayExportParams_ExportType" FullWidth Clearable>
+                @foreach (StayExportParamType option in Enum.GetValues<StayExportParamType>())
+                {
+                    <MudSelectItem Value="new Nullable<StayExportParamType>(option)">
+                        @Localizer.GetEnumValue(option)
+                    </MudSelectItem>
+                }
+            </MudSelect>
+        </MudStack>
+    </MudPaper>
+    @if (_showPeriodFields)
+    {
+        <MudPaper Class="pa-4" Elevation="3" Height="100%">
+            <MudStack Row>
+                <MudDatePicker @bind-Date="exportParams.ExportPeriodStart" For="@(() => exportParams.ExportPeriodStart)"
+                               Label="@LanguageLocale.dto_StayExportParams_ExportPeriodStart" Clearable OpenTo="OpenTo.Date" Editable
+                               AutoClose="true" />
+                <MudDatePicker @bind-Date="exportParams.ExportPeriodEnd" For="@(() => exportParams.ExportPeriodEnd)"
+                               Label="@LanguageLocale.dto_StayExportParams_ExportPeriodEnd" Clearable OpenTo="OpenTo.Date" Editable
+                               AutoClose="true" />
+            </MudStack>
+        </MudPaper>
+    }
+
+</MudForm>
+
+@if (_isExported && exportedFile != null)
+{
+    <MudPaper Class="pa-4 my-6" Elevation="3" Height="100%">
+        <MudStack>
+            <MudText Typo="Typo.h4">File Exported!</MudText>
+            <MudTextField Value="@Localizer.GetEnumValue(exportedFile.ExportResult)"
+                          Label="@LanguageLocale.dto_StayExportFile_ExportResult" FullWidth ReadOnly="true" />
+            <MudTextField Value="@Localizer.GetEnumValue(exportedFile.ExportFormat)"
+                          Label="@LanguageLocale.dto_StayExportFile_ExportFormat" FullWidth ReadOnly="true" />
+            <MudButton OnClick="BtnDownloadExportedFile">Download Exported File</MudButton>
+        </MudStack>
+    </MudPaper>
+}
+
+@code {
+    MudForm _form = null!;
+
+    StayExportFormat? exportFormat = null;
+    StayExportParamsDTO exportParams = new();
+    StayExportFileDTO? exportedFile = null;
+
+    bool _showPeriodFields => exportParams.ExportType == StayExportParamType.PeriodDateIn;
+    bool _isExported => exportedFile != null;
+
+
+    private void BtnReturn()
+    {
+        Navigation.NavigateTo(GuestConsts.Page_StayExport_List);
+    }
+
+    private async Task BtnCreateExport()
+    {
+        await _form.ValidateAsync();
+        if (!_form.IsValid || exportFormat == null)
+        {
+            userMessage.ShowMessage("Invalid Form!", MessageKind.Warning);
+            return;
+        }
+
+        var loadingDialog = await DialogService.ShowAsync<LoadingDialog>();
+
+        var exportResult = await ExportService.ExportStaysByParamsAsync(exportFormat.Value, exportParams);
+        exportedFile = exportResult.Value;
+        loadingDialog.Close();
+
+        if (!exportResult.IsSuccess)
+        {
+            userMessage.ShowResultWithMessage(exportResult, $"Error exporting stays");
+            return;
+        }
+
+        userMessage.ShowMessage(
+            $"Stay exported: {exportResult.ResultCode} with export result: {exportedFile?.ExportResult}",
+            MessageKind.Success);
+    }
+
+    private async Task BtnDownloadExportedFile()
+    {
+        Debug.Assert(exportedFile != null);
+
+        if (string.IsNullOrEmpty(exportedFile.ExportedPath))
+        {
+            userMessage.ShowMessage("Exported File can't be downloaded as no file was saved", MessageKind.Warning);
+            return;
+        }
+
+        using Stream dataStream = new MemoryStream();
+
+        Result loadResult = await ExportService.GetExportedFileAsync(exportedFile, dataStream);
+        if (!loadResult.IsSuccess)
+        {
+            userMessage.ShowResultWithMessage(loadResult, "Exported File can't be downloaded");
+            return;
+        }
+
+        dataStream.Seek(0, SeekOrigin.Begin);
+        using var streamRef = new DotNetStreamReference(stream: dataStream);
+
+        var fileName = Path.GetFileName(exportedFile.ExportedPath);
+        await JS.InvokeVoidAsync("downloadFileFromStream", fileName, streamRef);
+
+        userMessage.ShowMessage("Exported File downloaded!", MessageKind.Success);
+    }
+
+}

src/Somnia.GuestLog/Components/Pages/_Imports.razor

@@ -1 +1,3 @@
-@using Somnia.GuestLog.Components.Controls
+@using Somnia.GuestLog.Components.Controls
+@using Somnia.GuestLog.Services.Entity;
+@using System.Diagnostics;

src/Somnia.GuestLog/Components/_Imports.razor

@@ -1,5 +1,6 @@
 @using System.Net.Http
 @using System.Net.Http.Json
+@using System.Linq;
 @using Microsoft.AspNetCore.Components.Forms
 @using Microsoft.AspNetCore.Components.Routing
 @using Microsoft.AspNetCore.Components.Web
@@ -12,4 +13,7 @@
 @using Somnia.GuestLog
 @using Somnia.GuestLog.Components
 @using Somnia.GuestLog.Components.Layout
+@using Somnia.GuestLog.Components.Forms
+@using Somnia.GuestLog.Components.Controls
 @using Somnia.GuestLog.Resources
+@using Somnia.GuestLog.Enums.UI

src/Somnia.GuestLog/Enums/Models/StayExportFileResult.cs

@@ -0,0 +1,9 @@
+namespace Somnia.GuestLog.Enums.Models;
+
+public enum StayExportFileResult
+{
+    OK = 0,
+    NoData = 1,
+    ExportError = 2,
+    UploadError = 3,
+}

src/Somnia.GuestLog/Enums/Models/StayExportFormat.cs

@@ -0,0 +1,7 @@
+namespace Somnia.GuestLog.Enums.Models;
+
+public enum StayExportFormat
+{
+    GuestLogJson = 0,
+    SpainParteViajeros = 1,
+}

src/Somnia.GuestLog/Enums/Models/StayExportParamType.cs

@@ -0,0 +1,6 @@
+namespace Somnia.GuestLog.Enums.Models;
+
+public enum StayExportParamType
+{
+    PeriodDateIn = 0,
+}

src/Somnia.GuestLog/Enums/Services/AddressQueryProvider.cs

@@ -0,0 +1,7 @@
+namespace Somnia.GuestLog.Enums.Services;
+
+public enum AddressQueryProvider
+{
+    Nominatim,
+    GoogleApiV4
+}

src/Somnia.GuestLog/Enums/Services/ResultCode.cs

@@ -0,0 +1,15 @@
+namespace Somnia.GuestLog.Enums.Services;
+
+public enum ResultCode
+{
+    //Common Codes
+    Ok,
+    UnknownError,
+    FailedValidation,
+    NotFound,
+    FileStorageError,
+
+    //Specific Codes
+    GuestInStay,
+    GuestCurrentlyInStay,
+}

src/Somnia.GuestLog/Enums/UI/FormMode.cs

@@ -0,0 +1,6 @@
+namespace Somnia.GuestLog.Enums.UI;
+
+public enum FormMode
+{
+    Create, ReadOnly, Edit
+}

src/Somnia.GuestLog/Enums/UI/MessageKind.cs

@@ -0,0 +1,6 @@
+namespace Somnia.GuestLog.Enums.UI;
+
+public enum MessageKind
+{
+    Info, Warning, Error, Success, Normal
+}

src/Somnia.GuestLog/GuestConsts.cs

@@ -5,12 +5,25 @@ public static class GuestConsts
 
     public const string Page_GuestDocs_List = "/guest-documents";
     public const string Page_GuestDocs_New = "/guest-documents/new";
-    public const string Page_GuestDocs_Detail = "/guest-documents/d/{docId}";
+    public const string Page_GuestDocs_Detail = $"/guest-documents/d/{Page_GuestDocs_Detail_Param_DocId}";
+    public const string Page_GuestDocs_Detail_Param_DocId = "{docId:long}";
+
+    public const string Page_StayEntry_List = "/stayEntries";
+    public const string Page_StayEntry_New = "/stayEntries/new";
+    public const string Page_StayEntry_Detail = $"/stayEntries/d/{Page_StayEntry_Detail_Param_Id}";
+    public const string Page_StayEntry_Detail_Param_Id = "{StayId:long}";
+
+    public const string Page_StayExport_List = "/stayExport";
+    public const string Page_StayExport_New = "/stayExport/new";
+
+
+    public const string QueryParam_ReturnUrl = "returnUrl";
 
 
     public const string DataList_DocumentTypes = "DocumentType";
     public const string DataList_GenderOptions = "GenderOption";
     public const string DataList_CountryCodes = "CountryCode";
+    public const string DataList_PaymentMethods = "PaymentMethod";
 
 
     public const string CountryCode_ESP = "ESP";
@@ -18,4 +31,13 @@ public static class GuestConsts
     public const string DocumentType_DNI = "DNI";
     public const string DocumentType_NIE = "NIE";
     public const string DocumentType_PASSPORT = "PASSPORT";
+
+    public const string GenderOptions_MALE = "M";
+    public const string GenderOptions_FEMALE = "F";
+    public const string GenderOptions_OTHER = "O";
+
+    public const int GuestDocument_FirstVersion = 1;
+
+
+    public const string EmptyField = "-";
 }

src/Somnia.GuestLog/Infrastructure/DbConsts.cs

@@ -0,0 +1,12 @@
+namespace Somnia.GuestLog.Infrastructure;
+
+public static class DbConsts
+{
+    public const string DbType_Timestamptz = "timestamp with time zone";
+    public const string DbType_Timestamptz_0 = "timestamp(0) with time zone";
+    public const string DbType_Timestamptz_3 = "timestamp(3) with time zone";
+
+    public const string DbType_jsonb = "jsonb";
+
+    public const string PK_NotApply = "N/A";
+}

src/Somnia.GuestLog/Infrastructure/EntityConfigs/GuestDocumentEntityConfig.cs

@@ -11,7 +11,13 @@ public class GuestDocumentEntityConfig : IEntityTypeConfiguration<GuestDocument>
         builder.ToTable("GuestDocument");
 
         //PK
-        builder.HasKey(e => new { e.DocumentType, e.DocumentNum });
+        builder.HasKey(e => new { e.Id, e.Version });
+
+        builder.Property(e => e.Id)
+            .UseIdentityByDefaultColumn();
+
+        builder.Property(e => e.Version)
+            .IsRequired();
 
         builder.Property(e => e.DocumentType)
             .IsRequired()
@@ -48,6 +54,15 @@ public class GuestDocumentEntityConfig : IEntityTypeConfiguration<GuestDocument>
         builder.Property(e => e.EmailAddress)
             .HasMaxLength(256);
 
+        builder.Property(e => e.CreateTime)
+            .IsRequired()
+            .HasColumnType(DbConsts.DbType_Timestamptz_3);
+        builder.Property(e => e.UpdateTime)
+            .IsRequired()
+            .HasColumnType(DbConsts.DbType_Timestamptz_3);
+        builder.Property(e => e.IsLastVersion)
+            .IsRequired();
+
 
         var addressBuilder = builder.ComplexProperty(e => e.AddressDetails);
 

src/Somnia.GuestLog/Infrastructure/EntityConfigs/StayEntryEntityConfig.cs

@@ -0,0 +1,45 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using Somnia.GuestLog.Models.Entities;
+
+namespace Somnia.GuestLog.Infrastructure.EntityConfigs;
+
+public class StayEntryEntityConfig : IEntityTypeConfiguration<StayEntry>
+{
+    public void Configure(EntityTypeBuilder<StayEntry> builder)
+    {
+        builder.ToTable("StayEntry");
+
+        //PK
+        builder.HasKey(e => e.Id);
+
+        builder.Property(e => e.Id)
+            .IsRequired()
+            .UseIdentityByDefaultColumn();
+
+        builder.Property(e => e.DateIn)
+            .IsRequired()
+            .HasColumnType(DbConsts.DbType_Timestamptz_0);
+        builder.Property(e => e.DateOut)
+            .IsRequired()
+            .HasColumnType(DbConsts.DbType_Timestamptz_0);
+
+        builder.Property(e => e.RoomNumber)
+            .HasMaxLength(32);
+        builder.Property(e => e.PaymentMethod)
+            .IsRequired()
+            .HasMaxLength(5);
+
+
+        builder.Property(e => e.CreateTime)
+            .IsRequired()
+            .HasColumnType(DbConsts.DbType_Timestamptz);
+        builder.Property(e => e.UpdateTime)
+            .IsRequired()
+            .HasColumnType(DbConsts.DbType_Timestamptz);
+
+
+        builder.HasMany(e => e.GuestDocuments)
+            .WithMany();
+    }
+}

src/Somnia.GuestLog/Infrastructure/EntityConfigs/StayExportFileEntityConfig.cs

@@ -0,0 +1,36 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using Somnia.GuestLog.Models.Entities;
+
+namespace Somnia.GuestLog.Infrastructure.EntityConfigs;
+
+public class StayExportFileEntityConfig : IEntityTypeConfiguration<StayExportFile>
+{
+    public void Configure(EntityTypeBuilder<StayExportFile> builder)
+    {
+        builder.ToTable("StayExportFile");
+
+        //PK
+        builder.HasKey(e => e.Id);
+
+        builder.Property(e => e.Id)
+            .IsRequired()
+            .UseIdentityByDefaultColumn();
+
+        builder.ComplexProperty(e => e.ExportParams, e =>
+        {
+            e.ToJson();
+        });
+
+        builder.Property(e => e.ExportedPath)
+            .HasMaxLength(256);
+
+        builder.Property(e => e.ExportDetails)
+            .HasColumnType(DbConsts.DbType_jsonb);
+
+
+        builder.Property(e => e.ExportTime)
+            .IsRequired()
+            .HasColumnType(DbConsts.DbType_Timestamptz);
+    }
+}

src/Somnia.GuestLog/Infrastructure/GuestLogContext.cs

@@ -11,11 +11,16 @@ public partial class GuestLogContext : DbContext
     { }
 
     public DbSet<GuestDocument> GuestDocuments { get; set; }
+    public DbSet<StayEntry> StayEntries { get; set; }
+
+    public DbSet<StayExportFile> StayExportFiles { get; set; }
+
 
-    
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
         modelBuilder.ApplyConfiguration<GuestDocument>(new GuestDocumentEntityConfig());
+        modelBuilder.ApplyConfiguration<StayEntry>(new StayEntryEntityConfig());
+        modelBuilder.ApplyConfiguration<StayExportFile>(new StayExportFileEntityConfig());
 
         OnModelCreatingPartial(modelBuilder);
         base.OnModelCreating(modelBuilder);

src/Somnia.GuestLog/Infrastructure/Migrations/20260813085339_AddTable_StayEntry.Designer.cs

@@ -0,0 +1,191 @@
+// <auto-generated />
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Somnia.GuestLog.Infrastructure;
+
+#nullable disable
+
+namespace Somnia.GuestLog.Infrastructure.Migrations
+{
+    [DbContext(typeof(GuestLogContext))]
+    [Migration("20260813085339_AddTable_StayEntry")]
+    partial class AddTable_StayEntry
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.7")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.Property<long>("StayEntryId")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("GuestDocumentsDocumentType")
+                        .HasColumnType("character varying(8)");
+
+                    b.Property<string>("GuestDocumentsDocumentNum")
+                        .HasColumnType("character varying(64)");
+
+                    b.HasKey("StayEntryId", "GuestDocumentsDocumentType", "GuestDocumentsDocumentNum");
+
+                    b.HasIndex("GuestDocumentsDocumentType", "GuestDocumentsDocumentNum");
+
+                    b.ToTable("GuestDocumentStayEntry");
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.GuestDocument", b =>
+                {
+                    b.Property<string>("DocumentType")
+                        .HasMaxLength(8)
+                        .HasColumnType("character varying(8)");
+
+                    b.Property<string>("DocumentNum")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateOnly>("BirthDate")
+                        .HasColumnType("date");
+
+                    b.Property<DateTime>("CreateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("EmailAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("Gender")
+                        .HasMaxLength(1)
+                        .HasColumnType("character varying(1)");
+
+                    b.Property<DateOnly>("IssueDate")
+                        .HasColumnType("date");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Nationality")
+                        .IsRequired()
+                        .HasMaxLength(3)
+                        .HasColumnType("character varying(3)");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("SupportNum")
+                        .HasMaxLength(10)
+                        .HasColumnType("character varying(10)");
+
+                    b.Property<string>("Surname")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Surname2")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime>("UpdateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.ComplexProperty(typeof(Dictionary<string, object>), "AddressDetails", "Somnia.GuestLog.Models.Entities.GuestDocument.AddressDetails#GuestAddress", b1 =>
+                        {
+                            b1.Property<string>("Address")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressCity")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressCountry")
+                                .IsRequired()
+                                .HasMaxLength(3)
+                                .HasColumnType("character varying(3)");
+
+                            b1.Property<string>("AddressProvince")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressState")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("ZipCode")
+                                .HasMaxLength(12)
+                                .HasColumnType("character varying(12)");
+                        });
+
+                    b.HasKey("DocumentType", "DocumentNum");
+
+                    b.ToTable("GuestDocument", (string)null);
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.StayEntry", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime>("DateIn")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<DateTime>("DateOut")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<string>("PaymentMethod")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("character varying(5)");
+
+                    b.Property<int>("RoomCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("RoomNumber")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<DateTime>("UpdateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StayEntry", (string)null);
+                });
+
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.HasOne("Somnia.GuestLog.Models.Entities.StayEntry", null)
+                        .WithMany()
+                        .HasForeignKey("StayEntryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Somnia.GuestLog.Models.Entities.GuestDocument", null)
+                        .WithMany()
+                        .HasForeignKey("GuestDocumentsDocumentType", "GuestDocumentsDocumentNum")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/Somnia.GuestLog/Infrastructure/Migrations/20260813085339_AddTable_StayEntry.cs

@@ -0,0 +1,75 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Somnia.GuestLog.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddTable_StayEntry : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "StayEntry",
+                columns: table => new
+                {
+                    Id = table.Column<long>(type: "bigint", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    DateIn = table.Column<DateTime>(type: "timestamp(0) with time zone", nullable: false),
+                    DateOut = table.Column<DateTime>(type: "timestamp(0) with time zone", nullable: false),
+                    RoomCount = table.Column<int>(type: "integer", nullable: false),
+                    RoomNumber = table.Column<string>(type: "character varying(32)", maxLength: 32, nullable: true),
+                    PaymentMethod = table.Column<string>(type: "character varying(5)", maxLength: 5, nullable: false),
+                    CreateTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdateTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_StayEntry", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "GuestDocumentStayEntry",
+                columns: table => new
+                {
+                    StayEntryId = table.Column<long>(type: "bigint", nullable: false),
+                    GuestDocumentsDocumentType = table.Column<string>(type: "character varying(8)", nullable: false),
+                    GuestDocumentsDocumentNum = table.Column<string>(type: "character varying(64)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_GuestDocumentStayEntry", x => new { x.StayEntryId, x.GuestDocumentsDocumentType, x.GuestDocumentsDocumentNum });
+                    table.ForeignKey(
+                        name: "FK_GuestDocumentStayEntry_GuestDocument_GuestDocumentsDocument~",
+                        columns: x => new { x.GuestDocumentsDocumentType, x.GuestDocumentsDocumentNum },
+                        principalTable: "GuestDocument",
+                        principalColumns: new[] { "DocumentType", "DocumentNum" },
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_GuestDocumentStayEntry_StayEntry_StayEntryId",
+                        column: x => x.StayEntryId,
+                        principalTable: "StayEntry",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_GuestDocumentStayEntry_GuestDocumentsDocumentType_GuestDocu~",
+                table: "GuestDocumentStayEntry",
+                columns: new[] { "GuestDocumentsDocumentType", "GuestDocumentsDocumentNum" });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "GuestDocumentStayEntry");
+
+            migrationBuilder.DropTable(
+                name: "StayEntry");
+        }
+    }
+}

src/Somnia.GuestLog/Infrastructure/Migrations/20260830201743_GuestDocument_ChangePKToIdAndVersion.Designer.cs

@@ -0,0 +1,205 @@
+// <auto-generated />
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Somnia.GuestLog.Infrastructure;
+
+#nullable disable
+
+namespace Somnia.GuestLog.Infrastructure.Migrations
+{
+    [DbContext(typeof(GuestLogContext))]
+    [Migration("20260830201743_GuestDocument_ChangePKToIdAndVersion")]
+    partial class GuestDocument_ChangePKToIdAndVersion
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.7")
+                .HasAnnotation("Proxies:ChangeTracking", false)
+                .HasAnnotation("Proxies:CheckEquality", false)
+                .HasAnnotation("Proxies:LazyLoading", true)
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.Property<long>("StayEntryId")
+                        .HasColumnType("bigint");
+
+                    b.Property<long>("GuestDocumentsId")
+                        .HasColumnType("bigint");
+
+                    b.Property<int>("GuestDocumentsVersion")
+                        .HasColumnType("integer");
+
+                    b.HasKey("StayEntryId", "GuestDocumentsId", "GuestDocumentsVersion");
+
+                    b.HasIndex("GuestDocumentsId", "GuestDocumentsVersion");
+
+                    b.ToTable("GuestDocumentStayEntry");
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.GuestDocument", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<int>("Version")
+                        .HasColumnType("integer");
+
+                    b.Property<DateOnly>("BirthDate")
+                        .HasColumnType("date");
+
+                    b.Property<DateTime>("CreateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("DocumentNum")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("DocumentType")
+                        .IsRequired()
+                        .HasMaxLength(8)
+                        .HasColumnType("character varying(8)");
+
+                    b.Property<string>("EmailAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("Gender")
+                        .HasMaxLength(1)
+                        .HasColumnType("character varying(1)");
+
+                    b.Property<DateOnly>("IssueDate")
+                        .HasColumnType("date");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Nationality")
+                        .IsRequired()
+                        .HasMaxLength(3)
+                        .HasColumnType("character varying(3)");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("SupportNum")
+                        .HasMaxLength(10)
+                        .HasColumnType("character varying(10)");
+
+                    b.Property<string>("Surname")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Surname2")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime>("UpdateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.ComplexProperty(typeof(Dictionary<string, object>), "AddressDetails", "Somnia.GuestLog.Models.Entities.GuestDocument.AddressDetails#GuestAddress", b1 =>
+                        {
+                            b1.Property<string>("Address")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressCity")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressCountry")
+                                .IsRequired()
+                                .HasMaxLength(3)
+                                .HasColumnType("character varying(3)");
+
+                            b1.Property<string>("AddressProvince")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressState")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("ZipCode")
+                                .HasMaxLength(12)
+                                .HasColumnType("character varying(12)");
+                        });
+
+                    b.HasKey("Id", "Version");
+
+                    b.ToTable("GuestDocument", (string)null);
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.StayEntry", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime>("DateIn")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<DateTime>("DateOut")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<string>("PaymentMethod")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("character varying(5)");
+
+                    b.Property<int>("RoomCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("RoomNumber")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<DateTime>("UpdateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StayEntry", (string)null);
+                });
+
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.HasOne("Somnia.GuestLog.Models.Entities.StayEntry", null)
+                        .WithMany()
+                        .HasForeignKey("StayEntryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Somnia.GuestLog.Models.Entities.GuestDocument", null)
+                        .WithMany()
+                        .HasForeignKey("GuestDocumentsId", "GuestDocumentsVersion")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/Somnia.GuestLog/Infrastructure/Migrations/20260830201743_GuestDocument_ChangePKToIdAndVersion.cs

@@ -0,0 +1,101 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Somnia.GuestLog.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class GuestDocument_ChangePKToIdAndVersion : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            //Data don't really matter right now. Just get it working good.
+            //This migration will destry all data, but it's fine.
+
+            migrationBuilder.DropTable(
+                name: "GuestDocumentStayEntry"
+            );
+
+            migrationBuilder.Sql("""DELETE FROM "StayEntry";""");
+
+            migrationBuilder.DropTable(
+                name: "GuestDocument"
+            );
+
+            migrationBuilder.CreateTable(
+                name: "GuestDocument",
+                columns: table => new
+                {
+                    Id = table.Column<long>(type: "bigint", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Version = table.Column<int>(type: "integer", nullable: false),
+                    DocumentType = table.Column<string>(type: "character varying(8)", maxLength: 8, nullable: false),
+                    DocumentNum = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false),
+                    IssueDate = table.Column<DateOnly>(type: "date", nullable: false),
+                    SupportNum = table.Column<string>(type: "character varying(10)", maxLength: 10, nullable: true),
+                    Nationality = table.Column<string>(type: "character varying(3)", maxLength: 3, nullable: false),
+                    Name = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false),
+                    Surname = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false),
+                    Surname2 = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: true),
+                    BirthDate = table.Column<DateOnly>(type: "date", nullable: false),
+                    Gender = table.Column<string>(type: "character varying(1)", maxLength: 1, nullable: true),
+                    PhoneNumber = table.Column<string>(type: "character varying(32)", maxLength: 32, nullable: true),
+                    EmailAddress = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    CreateTime = table.Column<DateTime>(type: "timestamp(3) with time zone", nullable: false),
+                    UpdateTime = table.Column<DateTime>(type: "timestamp(3) with time zone", nullable: false),
+                    IsLastVersion = table.Column<bool>(type: "boolean", nullable: false),
+                    AddressDetails_Address = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: true),
+                    AddressDetails_AddressCity = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: true),
+                    AddressDetails_AddressCountry = table.Column<string>(type: "character varying(3)", maxLength: 3, nullable: true),
+                    AddressDetails_AddressProvince = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: true),
+                    AddressDetails_AddressState = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: true),
+                    AddressDetails_ZipCode = table.Column<string>(type: "character varying(12)", maxLength: 12, nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_GuestDocument", x => new { x.Id, x.Version });
+                }
+            );
+
+
+            //Existing index for "DocType" and "DocNum" can be useful, so let's keep it.
+            migrationBuilder.CreateTable(
+                name: "GuestDocumentStayEntry",
+                columns: table => new
+                {
+                    StayEntryId = table.Column<long>(type: "bigint", nullable: false),
+                    GuestDocumentsId = table.Column<long>(type: "bigint", nullable: false),
+                    GuestDocumentsVersion = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_GuestDocumentStayEntry", x => new { x.StayEntryId, x.GuestDocumentsId, x.GuestDocumentsVersion });
+                    table.ForeignKey(
+                        name: "FK_GuestDocumentStayEntry_GuestDocument_GuestDocumentsId_Guest~",
+                        columns: x => new { x.GuestDocumentsId, x.GuestDocumentsVersion },
+                        principalTable: "GuestDocument",
+                        principalColumns: new[] { "Id", "Version" },
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_GuestDocumentStayEntry_StayEntry_StayEntryId",
+                        column: x => x.StayEntryId,
+                        principalTable: "StayEntry",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_GuestDocumentStayEntry_GuestDocumentsId_GuestDocumentsVersi~",
+                table: "GuestDocumentStayEntry",
+                columns: new[] { "GuestDocumentsId", "GuestDocumentsVersion" });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            throw new NotSupportedException("Rollback is not supported for this migration!");
+        }
+    }
+}

src/Somnia.GuestLog/Infrastructure/Migrations/20260901161146_AddTable_StayExportFile.Designer.cs

@@ -0,0 +1,249 @@
+// <auto-generated />
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Somnia.GuestLog.Infrastructure;
+
+#nullable disable
+
+namespace Somnia.GuestLog.Infrastructure.Migrations
+{
+    [DbContext(typeof(GuestLogContext))]
+    [Migration("20260901161146_AddTable_StayExportFile")]
+    partial class AddTable_StayExportFile
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.7")
+                .HasAnnotation("Proxies:ChangeTracking", false)
+                .HasAnnotation("Proxies:CheckEquality", false)
+                .HasAnnotation("Proxies:LazyLoading", true)
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.Property<long>("StayEntryId")
+                        .HasColumnType("bigint");
+
+                    b.Property<long>("GuestDocumentsId")
+                        .HasColumnType("bigint");
+
+                    b.Property<int>("GuestDocumentsVersion")
+                        .HasColumnType("integer");
+
+                    b.HasKey("StayEntryId", "GuestDocumentsId", "GuestDocumentsVersion");
+
+                    b.HasIndex("GuestDocumentsId", "GuestDocumentsVersion");
+
+                    b.ToTable("GuestDocumentStayEntry");
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.GuestDocument", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<int>("Version")
+                        .HasColumnType("integer");
+
+                    b.Property<DateOnly>("BirthDate")
+                        .HasColumnType("date");
+
+                    b.Property<DateTime>("CreateTime")
+                        .HasColumnType("timestamp(3) with time zone");
+
+                    b.Property<string>("DocumentNum")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("DocumentType")
+                        .IsRequired()
+                        .HasMaxLength(8)
+                        .HasColumnType("character varying(8)");
+
+                    b.Property<string>("EmailAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("Gender")
+                        .HasMaxLength(1)
+                        .HasColumnType("character varying(1)");
+
+                    b.Property<bool>("IsLastVersion")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateOnly>("IssueDate")
+                        .HasColumnType("date");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Nationality")
+                        .IsRequired()
+                        .HasMaxLength(3)
+                        .HasColumnType("character varying(3)");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("SupportNum")
+                        .HasMaxLength(10)
+                        .HasColumnType("character varying(10)");
+
+                    b.Property<string>("Surname")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Surname2")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime>("UpdateTime")
+                        .HasColumnType("timestamp(3) with time zone");
+
+                    b.ComplexProperty(typeof(Dictionary<string, object>), "AddressDetails", "Somnia.GuestLog.Models.Entities.GuestDocument.AddressDetails#GuestAddress", b1 =>
+                        {
+                            b1.Property<string>("Address")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressCity")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressCountry")
+                                .IsRequired()
+                                .HasMaxLength(3)
+                                .HasColumnType("character varying(3)");
+
+                            b1.Property<string>("AddressProvince")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressState")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("ZipCode")
+                                .HasMaxLength(12)
+                                .HasColumnType("character varying(12)");
+                        });
+
+                    b.HasKey("Id", "Version");
+
+                    b.ToTable("GuestDocument", (string)null);
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.StayEntry", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime>("DateIn")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<DateTime>("DateOut")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<string>("PaymentMethod")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("character varying(5)");
+
+                    b.Property<int>("RoomCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("RoomNumber")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<DateTime>("UpdateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StayEntry", (string)null);
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.StayExportFile", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<int>("ExportFormat")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ExportResult")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("ExportTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ExportedPath")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.ComplexProperty(typeof(Dictionary<string, object>), "ExportParams", "Somnia.GuestLog.Models.Entities.StayExportFile.ExportParams#StayExportParams", b1 =>
+                        {
+                            b1.IsRequired();
+
+                            b1.Property<DateTime?>("ExportPeriodEnd");
+
+                            b1.Property<DateTime?>("ExportPeriodStart");
+
+                            b1.Property<int>("ExportType");
+
+                            b1
+                                .ToJson("ExportParams")
+                                .HasColumnType("jsonb");
+                        });
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StayExportFile", (string)null);
+                });
+
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.HasOne("Somnia.GuestLog.Models.Entities.StayEntry", null)
+                        .WithMany()
+                        .HasForeignKey("StayEntryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Somnia.GuestLog.Models.Entities.GuestDocument", null)
+                        .WithMany()
+                        .HasForeignKey("GuestDocumentsId", "GuestDocumentsVersion")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/Somnia.GuestLog/Infrastructure/Migrations/20260901161146_AddTable_StayExportFile.cs

@@ -0,0 +1,40 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Somnia.GuestLog.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddTable_StayExportFile : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "StayExportFile",
+                columns: table => new
+                {
+                    Id = table.Column<long>(type: "bigint", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ExportFormat = table.Column<int>(type: "integer", nullable: false),
+                    ExportResult = table.Column<int>(type: "integer", nullable: false),
+                    ExportedPath = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    ExportTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    ExportParams = table.Column<string>(type: "jsonb", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_StayExportFile", x => x.Id);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "StayExportFile");
+        }
+    }
+}

src/Somnia.GuestLog/Infrastructure/Migrations/20260908172441_StayExportFile_AddColumn_ExportDetails.Designer.cs

@@ -0,0 +1,252 @@
+// <auto-generated />
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Somnia.GuestLog.Infrastructure;
+
+#nullable disable
+
+namespace Somnia.GuestLog.Infrastructure.Migrations
+{
+    [DbContext(typeof(GuestLogContext))]
+    [Migration("20260908172441_StayExportFile_AddColumn_ExportDetails")]
+    partial class StayExportFile_AddColumn_ExportDetails
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.7")
+                .HasAnnotation("Proxies:ChangeTracking", false)
+                .HasAnnotation("Proxies:CheckEquality", false)
+                .HasAnnotation("Proxies:LazyLoading", true)
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.Property<long>("StayEntryId")
+                        .HasColumnType("bigint");
+
+                    b.Property<long>("GuestDocumentsId")
+                        .HasColumnType("bigint");
+
+                    b.Property<int>("GuestDocumentsVersion")
+                        .HasColumnType("integer");
+
+                    b.HasKey("StayEntryId", "GuestDocumentsId", "GuestDocumentsVersion");
+
+                    b.HasIndex("GuestDocumentsId", "GuestDocumentsVersion");
+
+                    b.ToTable("GuestDocumentStayEntry");
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.GuestDocument", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<int>("Version")
+                        .HasColumnType("integer");
+
+                    b.Property<DateOnly>("BirthDate")
+                        .HasColumnType("date");
+
+                    b.Property<DateTime>("CreateTime")
+                        .HasColumnType("timestamp(3) with time zone");
+
+                    b.Property<string>("DocumentNum")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("DocumentType")
+                        .IsRequired()
+                        .HasMaxLength(8)
+                        .HasColumnType("character varying(8)");
+
+                    b.Property<string>("EmailAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("Gender")
+                        .HasMaxLength(1)
+                        .HasColumnType("character varying(1)");
+
+                    b.Property<bool>("IsLastVersion")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateOnly>("IssueDate")
+                        .HasColumnType("date");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Nationality")
+                        .IsRequired()
+                        .HasMaxLength(3)
+                        .HasColumnType("character varying(3)");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("SupportNum")
+                        .HasMaxLength(10)
+                        .HasColumnType("character varying(10)");
+
+                    b.Property<string>("Surname")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Surname2")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime>("UpdateTime")
+                        .HasColumnType("timestamp(3) with time zone");
+
+                    b.ComplexProperty(typeof(Dictionary<string, object>), "AddressDetails", "Somnia.GuestLog.Models.Entities.GuestDocument.AddressDetails#GuestAddress", b1 =>
+                        {
+                            b1.Property<string>("Address")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressCity")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressCountry")
+                                .IsRequired()
+                                .HasMaxLength(3)
+                                .HasColumnType("character varying(3)");
+
+                            b1.Property<string>("AddressProvince")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("AddressState")
+                                .HasMaxLength(128)
+                                .HasColumnType("character varying(128)");
+
+                            b1.Property<string>("ZipCode")
+                                .HasMaxLength(12)
+                                .HasColumnType("character varying(12)");
+                        });
+
+                    b.HasKey("Id", "Version");
+
+                    b.ToTable("GuestDocument", (string)null);
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.StayEntry", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime>("DateIn")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<DateTime>("DateOut")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<string>("PaymentMethod")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("character varying(5)");
+
+                    b.Property<int>("RoomCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("RoomNumber")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<DateTime>("UpdateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StayEntry", (string)null);
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.StayExportFile", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<string>("ExportDetails")
+                        .HasColumnType("jsonb");
+
+                    b.Property<int>("ExportFormat")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ExportResult")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("ExportTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ExportedPath")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.ComplexProperty(typeof(Dictionary<string, object>), "ExportParams", "Somnia.GuestLog.Models.Entities.StayExportFile.ExportParams#StayExportParams", b1 =>
+                        {
+                            b1.IsRequired();
+
+                            b1.Property<DateTime?>("ExportPeriodEnd");
+
+                            b1.Property<DateTime?>("ExportPeriodStart");
+
+                            b1.Property<int>("ExportType");
+
+                            b1
+                                .ToJson("ExportParams")
+                                .HasColumnType("jsonb");
+                        });
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StayExportFile", (string)null);
+                });
+
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.HasOne("Somnia.GuestLog.Models.Entities.StayEntry", null)
+                        .WithMany()
+                        .HasForeignKey("StayEntryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Somnia.GuestLog.Models.Entities.GuestDocument", null)
+                        .WithMany()
+                        .HasForeignKey("GuestDocumentsId", "GuestDocumentsVersion")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/Somnia.GuestLog/Infrastructure/Migrations/20260908172441_StayExportFile_AddColumn_ExportDetails.cs

@@ -0,0 +1,28 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Somnia.GuestLog.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class StayExportFile_AddColumn_ExportDetails : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "ExportDetails",
+                table: "StayExportFile",
+                type: "jsonb",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "ExportDetails",
+                table: "StayExportFile");
+        }
+    }
+}

src/Somnia.GuestLog/Infrastructure/Migrations/GuestLogContextModelSnapshot.cs

@@ -19,25 +19,57 @@ namespace Somnia.GuestLog.Infrastructure.Migrations
 #pragma warning disable 612, 618
             modelBuilder
                 .HasAnnotation("ProductVersion", "10.0.7")
+                .HasAnnotation("Proxies:ChangeTracking", false)
+                .HasAnnotation("Proxies:CheckEquality", false)
+                .HasAnnotation("Proxies:LazyLoading", true)
                 .HasAnnotation("Relational:MaxIdentifierLength", 63);
 
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
 
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.Property<long>("StayEntryId")
+                        .HasColumnType("bigint");
+
+                    b.Property<long>("GuestDocumentsId")
+                        .HasColumnType("bigint");
+
+                    b.Property<int>("GuestDocumentsVersion")
+                        .HasColumnType("integer");
+
+                    b.HasKey("StayEntryId", "GuestDocumentsId", "GuestDocumentsVersion");
+
+                    b.HasIndex("GuestDocumentsId", "GuestDocumentsVersion");
+
+                    b.ToTable("GuestDocumentStayEntry");
+                });
+
             modelBuilder.Entity("Somnia.GuestLog.Models.Entities.GuestDocument", b =>
                 {
-                    b.Property<string>("DocumentType")
+                    b.Property<long>("Id")
-                        .HasMaxLength(8)
+                        .ValueGeneratedOnAdd()
-                        .HasColumnType("character varying(8)");
+                        .HasColumnType("bigint");
 
-                    b.Property<string>("DocumentNum")
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
-                        .HasMaxLength(64)
+
-                        .HasColumnType("character varying(64)");
+                    b.Property<int>("Version")
+                        .HasColumnType("integer");
 
                     b.Property<DateOnly>("BirthDate")
                         .HasColumnType("date");
 
                     b.Property<DateTime>("CreateTime")
-                        .HasColumnType("timestamp with time zone");
+                        .HasColumnType("timestamp(3) with time zone");
+
+                    b.Property<string>("DocumentNum")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("DocumentType")
+                        .IsRequired()
+                        .HasMaxLength(8)
+                        .HasColumnType("character varying(8)");
 
                     b.Property<string>("EmailAddress")
                         .HasMaxLength(256)
@@ -47,6 +79,9 @@ namespace Somnia.GuestLog.Infrastructure.Migrations
                         .HasMaxLength(1)
                         .HasColumnType("character varying(1)");
 
+                    b.Property<bool>("IsLastVersion")
+                        .HasColumnType("boolean");
+
                     b.Property<DateOnly>("IssueDate")
                         .HasColumnType("date");
 
@@ -78,7 +113,7 @@ namespace Somnia.GuestLog.Infrastructure.Migrations
                         .HasColumnType("character varying(64)");
 
                     b.Property<DateTime>("UpdateTime")
-                        .HasColumnType("timestamp with time zone");
+                        .HasColumnType("timestamp(3) with time zone");
 
                     b.ComplexProperty(typeof(Dictionary<string, object>), "AddressDetails", "Somnia.GuestLog.Models.Entities.GuestDocument.AddressDetails#GuestAddress", b1 =>
                         {
@@ -108,10 +143,106 @@ namespace Somnia.GuestLog.Infrastructure.Migrations
                                 .HasColumnType("character varying(12)");
                         });
 
-                    b.HasKey("DocumentType", "DocumentNum");
+                    b.HasKey("Id", "Version");
 
                     b.ToTable("GuestDocument", (string)null);
                 });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.StayEntry", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime>("DateIn")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<DateTime>("DateOut")
+                        .HasColumnType("timestamp(0) with time zone");
+
+                    b.Property<string>("PaymentMethod")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("character varying(5)");
+
+                    b.Property<int>("RoomCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("RoomNumber")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<DateTime>("UpdateTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StayEntry", (string)null);
+                });
+
+            modelBuilder.Entity("Somnia.GuestLog.Models.Entities.StayExportFile", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<string>("ExportDetails")
+                        .HasColumnType("jsonb");
+
+                    b.Property<int>("ExportFormat")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ExportResult")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("ExportTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ExportedPath")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.ComplexProperty(typeof(Dictionary<string, object>), "ExportParams", "Somnia.GuestLog.Models.Entities.StayExportFile.ExportParams#StayExportParams", b1 =>
+                        {
+                            b1.IsRequired();
+
+                            b1.Property<DateTime?>("ExportPeriodEnd");
+
+                            b1.Property<DateTime?>("ExportPeriodStart");
+
+                            b1.Property<int>("ExportType");
+
+                            b1
+                                .ToJson("ExportParams")
+                                .HasColumnType("jsonb");
+                        });
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StayExportFile", (string)null);
+                });
+
+            modelBuilder.Entity("GuestDocumentStayEntry", b =>
+                {
+                    b.HasOne("Somnia.GuestLog.Models.Entities.StayEntry", null)
+                        .WithMany()
+                        .HasForeignKey("StayEntryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Somnia.GuestLog.Models.Entities.GuestDocument", null)
+                        .WithMany()
+                        .HasForeignKey("GuestDocumentsId", "GuestDocumentsVersion")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
 #pragma warning restore 612, 618
         }
     }

src/Somnia.GuestLog/Models/Configuration/AddressQueryConfig.cs

@@ -0,0 +1,16 @@
+using Somnia.GuestLog.Enums.Services;
+
+namespace Somnia.GuestLog.Models.Configuration;
+
+public class AddressQueryConfig
+{
+    public const string SectionName = "AddressQuery";
+
+    public bool EnableAddressQuery { get; set; }
+    public AddressQueryProvider? Provider { get; set; }
+    public string? ServiceURL { get; set; }
+    public string? ApiKey { get; set; }
+    public string? UserAgent { get; set; }
+    public string? ResultLang { get; set; }
+}
+

src/Somnia.GuestLog/Models/Configuration/StayExportConfig.cs

@@ -0,0 +1,10 @@
+namespace Somnia.GuestLog.Models.Configuration;
+
+public class StayExportConfig
+{
+    public const string SectionName = "StayExport";
+
+    public bool EnableStayExport { get; set; } = false;
+    public string? ExportStorageConnectionString { get; set; }
+    public bool UseSubdirectoryByFormat { get; set; }
+}

src/Somnia.GuestLog/Models/Configuration/StayExportSpainParteViajerosConfig.cs

@@ -0,0 +1,9 @@
+namespace Somnia.GuestLog.Models.Configuration;
+
+public class StayExportSpainParteViajerosConfig
+{
+    public const string SectionName = "StayExportSpainParteViajeros";
+
+    public bool InternetAvailable { get; set; } = false;
+    public string? CodigoEstablecimiento { get; set; }
+}

src/Somnia.GuestLog/Models/DTOs/AddressResultDTO.cs

@@ -0,0 +1,17 @@
+namespace Somnia.GuestLog.Models.DTOs;
+
+public class AddressResultDTO
+{
+    public string? HouseNumber { get; set; }
+    public string? AddressRoad { get; set; }
+    public string? AddressCity { get; set; }
+    public string? AddressProvince { get; set; }
+    public string? AddressState { get; set; }
+    public string? AddressCountry { get; set; }
+    public string? ZipCode { get; set; }
+
+    /// <summary>
+    /// CountryCode in ISO3166-1:alpha3
+    /// </summary>
+    public string? AddressCountryCode { get; set; }
+}

src/Somnia.GuestLog/Models/DTOs/GuestDocFilterDTO.cs

@@ -4,10 +4,19 @@ public class GuestDocFilterDTO
 {
     public string? DocumentType { get; set; }
     public string? DocumentNumber { get; set; }
-    
+
     public string? Name { get; set; }
     public string? Surname { get; set; }
 
     public string? PhoneNumber { get; set; }
 
+    public bool OnlyLastVersion { get; set; }
+
+
+    public bool IsEmpty => string.IsNullOrEmpty(DocumentType)
+            && string.IsNullOrEmpty(DocumentNumber)
+            && string.IsNullOrEmpty(Name)
+            && string.IsNullOrEmpty(Surname)
+            && string.IsNullOrEmpty(PhoneNumber);
+
 }

src/Somnia.GuestLog/Models/DTOs/GuestDocIdDTO.cs

@@ -25,4 +25,18 @@ public class GuestDocIdDTO
             DocumentNum = parts[1]
         };
     }
+
+    public static GuestDocIdDTO? BuildFromDto(GuestDocumentDTO? dto)
+    {
+        if (dto is null || dto.DocumentType is null || dto.DocumentNum is null)
+        {
+            return null;
+        }
+
+        return new()
+        {
+            DocumentType = dto.DocumentType,
+            DocumentNum = dto.DocumentNum
+        };
+    }
 }

src/Somnia.GuestLog/Models/DTOs/GuestDocumentDTO.cs

@@ -2,6 +2,9 @@ namespace Somnia.GuestLog.Models.DTOs;
 
 public class GuestDocumentDTO
 {
+    public long? Id { get; set; }
+    public int? Version { get; set; }
+
     public string? DocumentType { get; set; }
     public string? DocumentNum { get; set; }
 
@@ -31,4 +34,8 @@ public class GuestDocumentDTO
 
     public DateTime? CreateTime { get; set; }
     public DateTime? UpdateTime { get; set; }
+
+
+    public string FullKey => $"{Id}-{Version}";
+    public string FullDocument => $"{DocumentType ?? "???"}-{DocumentNum ?? "???"}";
 }

src/Somnia.GuestLog/Models/DTOs/Result.cs

@@ -0,0 +1,42 @@
+using Somnia.GuestLog.Enums.Services;
+
+namespace Somnia.GuestLog.Models.DTOs;
+
+public interface IResult
+{
+    bool IsSuccess { get; }
+    ResultCode ResultCode { get; }
+    object[]? Context { get; }
+}
+
+public sealed record Result(
+    bool IsSuccess,
+    ResultCode ResultCode,
+    params object[]? Context
+) : IResult
+{
+    public static Result Ok() => new(IsSuccess: true, ResultCode: ResultCode.Ok, Context: null);
+
+    public static Result Fail(ResultCode resultCode) => new(IsSuccess: false, resultCode, Context: null);
+    public static Result FailWithContext(ResultCode resultCode, params object[] context)
+        => new(IsSuccess: false, resultCode, context);
+    public static Result FailUnknownError()
+        => new(IsSuccess: false, ResultCode: ResultCode.UnknownError, Context: null);
+
+    public bool IsUnknownError => !IsSuccess && ResultCode == ResultCode.UnknownError;
+}
+
+public sealed record Result<T>(
+    bool IsSuccess,
+    T? Value,
+    ResultCode ResultCode,
+    params object[]? Context
+) : IResult
+{
+    public static Result<T> Ok(T value) => new(IsSuccess: true, value, ResultCode: ResultCode.Ok, Context: null);
+    public static Result<T> Fail(ResultCode resultCode) => new(IsSuccess: false, Value: default, resultCode, Context: null);
+    public static Result<T> FailWithContext(ResultCode resultCode, params object[] context)
+        => new(IsSuccess: false, Value: default, resultCode, context);
+
+    public bool IsUnknownError => !IsSuccess && ResultCode == ResultCode.UnknownError;
+}

src/Somnia.GuestLog/Models/DTOs/StayEntryDTO.cs

@@ -0,0 +1,20 @@
+namespace Somnia.GuestLog.Models.DTOs;
+
+public class StayEntryDTO
+{
+    public long? Id { get; set; }
+
+    public DateTime? DateIn { get; set; }
+    public DateTime? DateOut { get; set; }
+
+    public int? RoomCount { get; set; }
+    public string? RoomNumber { get; set; }
+    public string? PaymentMethod { get; set; }
+
+
+    public List<GuestDocumentDTO>? GuestDocuments { get; set; } = null;
+
+
+    public DateTime? CreateTime { get; set; }
+    public DateTime? UpdateTime { get; set; }
+}

src/Somnia.GuestLog/Models/DTOs/StayEntryFilterDTO.cs

@@ -0,0 +1,10 @@
+namespace Somnia.GuestLog.Models.DTOs;
+
+public class StayEntryFilterDTO
+{
+    public DateTime? DateInStart { get; set; }
+    public DateTime? DateInEnd { get; set; }
+
+    public string? RoomNumber { get; set; }
+    public string? PaymentMethod { get; set; }
+}

src/Somnia.GuestLog/Models/DTOs/StayExportFileDTO.cs

@@ -0,0 +1,29 @@
+using Somnia.GuestLog.Enums.Models;
+
+namespace Somnia.GuestLog.Models.DTOs;
+
+public class StayExportFileDTO
+{
+    public long? Id { get; set; }
+
+    public StayExportFormat? ExportFormat { get; set; }
+
+    public StayExportParamsDTO? ExportParams { get; set; }
+
+    public StayExportFileResult? ExportResult { get; set; }
+
+    public string? ExportedPath { get; set; }
+    
+    public string? ExportDetails { get; set; }
+
+
+    public DateTime? ExportTime { get; set; }
+}
+
+public class StayExportParamsDTO
+{
+    public StayExportParamType? ExportType { get; set; }
+
+    public DateTime? ExportPeriodStart { get; set; }
+    public DateTime? ExportPeriodEnd { get; set; }
+}

src/Somnia.GuestLog/Models/Entities/GuestAddress.cs

@@ -1,3 +1,5 @@
+using Somnia.GuestLog.Infrastructure;
+
 namespace Somnia.GuestLog.Models.Entities;
 
 public class GuestAddress : BaseEntity
@@ -9,5 +11,5 @@ public class GuestAddress : BaseEntity
     public required string AddressCountry { get; set; }
     public string? ZipCode { get; set; }
 
-    public override string GetFullKey() => "N/A";
+    public override string GetFullKey() => DbConsts.PK_NotApply;
 }

src/Somnia.GuestLog/Models/Entities/GuestDocument.cs

@@ -2,6 +2,9 @@ namespace Somnia.GuestLog.Models.Entities;
 
 public class GuestDocument : BaseEntity
 {
+    public long Id { get; set; }
+    public int Version { get; set; }
+
     public required string DocumentType { get; set; }
     public required string DocumentNum { get; set; }
 
@@ -26,6 +29,8 @@ public class GuestDocument : BaseEntity
     public required DateTime CreateTime { get; set; }
     public required DateTime UpdateTime { get; set; }
 
+    public required bool IsLastVersion { get; set; }
 
-    public override string GetFullKey() => $"{DocumentType}-{DocumentNum}";
+
+    public override string GetFullKey() => $"{Id}-{Version}";
 }

src/Somnia.GuestLog/Models/Entities/StayEntry.cs

@@ -0,0 +1,24 @@
+namespace Somnia.GuestLog.Models.Entities;
+
+public class StayEntry : BaseEntity
+{
+    public long Id { get; set; }
+
+    public required DateTime DateIn { get; set; }
+    public required DateTime DateOut { get; set; }
+
+    public required int RoomCount { get; set; }
+    public string? RoomNumber { get; set; }
+
+    public required string PaymentMethod { get; set; }
+
+    public virtual ICollection<GuestDocument> GuestDocuments { get; } = [];
+
+
+    //Generated Properties.
+    public required DateTime CreateTime { get; set; }
+    public required DateTime UpdateTime { get; set; }
+
+
+    public override string GetFullKey() => $"{Id}";
+}

src/Somnia.GuestLog/Models/Entities/StayExportFile.cs

@@ -0,0 +1,33 @@
+using Somnia.GuestLog.Enums.Models;
+
+namespace Somnia.GuestLog.Models.Entities;
+
+public class StayExportFile : BaseEntity
+{
+    public long Id { get; set; }
+
+    public required StayExportFormat ExportFormat { get; set; }
+    public required StayExportParams ExportParams { get; set; }
+
+    public required StayExportFileResult ExportResult { get; set; }
+
+    /// <summary>
+    /// Path to exported data.
+    /// Should be relative to configured Storage.
+    /// </summary>
+    public string? ExportedPath { get; set; }
+
+    /// <summary>
+    /// A JSON column to store details about the exported file.
+    /// This details can contain information about errors, which stays where included, etc.
+    /// </summary>
+    public string? ExportDetails { get; set; }
+
+    /// <summary>
+    /// Date/Time when export file was generated.
+    /// </summary>
+    public required DateTime ExportTime { get; set; }
+
+
+    public override string GetFullKey() => $"{Id}";
+}

src/Somnia.GuestLog/Models/Entities/StayExportParams.cs

@@ -0,0 +1,19 @@
+using Somnia.GuestLog.Enums.Models;
+using Somnia.GuestLog.Infrastructure;
+
+namespace Somnia.GuestLog.Models.Entities;
+
+/// <summary>
+/// This class store params used on StayExport. 
+/// Different params apply for different export types.
+/// </summary>
+public class StayExportParams : BaseEntity
+{
+    public required StayExportParamType ExportType { get; set; }
+
+    public DateTime? ExportPeriodStart { get; set; }
+    public DateTime? ExportPeriodEnd { get; set; }
+
+
+    public override string GetFullKey() => DbConsts.PK_NotApply;
+}

src/Somnia.GuestLog/Models/EntityMapping.cs

@@ -0,0 +1,75 @@
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Models.Entities;
+
+namespace Somnia.GuestLog.Models;
+
+internal static class EntityMapping
+{
+
+    public static GuestDocumentDTO MapGuestDocumentEntityToDTO(GuestDocument entity)
+    {
+        return new()
+        {
+            Id = entity.Id,
+            Version = entity.Version,
+            DocumentType = entity.DocumentType,
+            DocumentNum = entity.DocumentNum,
+            IssueDate = entity.IssueDate.ToDateTime(TimeOnly.MinValue),
+            SupportNum = entity.SupportNum,
+            Nationality = entity.Nationality,
+            Name = entity.Name,
+            Surname = entity.Surname,
+            Surname2 = entity.Surname2,
+            BirthDate = entity.BirthDate.ToDateTime(TimeOnly.MinValue),
+            Gender = entity.Gender,
+            PhoneNumber = entity.PhoneNumber,
+            EmailAddress = entity.EmailAddress,
+            Address = entity.AddressDetails?.Address ?? "",
+            AddressCity = entity.AddressDetails?.AddressCity ?? "",
+            AddressProvince = entity.AddressDetails?.AddressProvince ?? "",
+            AddressState = entity.AddressDetails?.AddressState ?? "",
+            AddressCountry = entity.AddressDetails?.AddressCountry! ?? "",
+            ZipCode = entity.AddressDetails?.ZipCode ?? "",
+            CreateTime = entity.CreateTime,
+            UpdateTime = entity.UpdateTime,
+        };
+    }
+
+    public static StayEntryDTO MapStayEntryEntityToDTO(StayEntry entity, bool includeGuests)
+    {
+        return new()
+        {
+            Id = entity.Id,
+            DateIn = entity.DateIn.ToLocalTime(),
+            DateOut = entity.DateOut.ToLocalTime(),
+            RoomCount = entity.RoomCount,
+            RoomNumber = entity.RoomNumber,
+            PaymentMethod = entity.PaymentMethod,
+            CreateTime = entity.CreateTime,
+            UpdateTime = entity.UpdateTime,
+            GuestDocuments = includeGuests ? [.. entity.GuestDocuments.Select(e => MapGuestDocumentEntityToDTO(e))] : null,
+        };
+    }
+
+    public static StayExportFileDTO MapStayExportFileEntityToDTO(StayExportFile entity)
+    {
+        StayExportParamsDTO exportParamsDto = new()
+        {
+            ExportType = entity.ExportParams.ExportType,
+            ExportPeriodStart = entity.ExportParams.ExportPeriodStart,
+            ExportPeriodEnd = entity.ExportParams.ExportPeriodEnd,
+        };
+
+        return new()
+        {
+            Id = entity.Id,
+            ExportFormat = entity.ExportFormat,
+            ExportParams = exportParamsDto,
+            ExportResult = entity.ExportResult,
+            ExportedPath = entity.ExportedPath,
+            ExportDetails = entity.ExportDetails,
+            ExportTime = entity.ExportTime,
+        };
+    }
+
+}

src/Somnia.GuestLog/Models/QueryConfigs/StayEntryQueryConfig.cs

@@ -0,0 +1,34 @@
+using Microsoft.EntityFrameworkCore;
+using Somnia.GuestLog.Models.Entities;
+
+namespace Somnia.GuestLog.Models.QueryConfigs;
+
+public record StayEntryQueryConfig(bool IncludeGuests = false, bool UseSplitQueries = true, bool DisableTracking = false)
+{
+    public readonly static StayEntryQueryConfig DefaultQueryConfig = new();
+}
+
+
+public static class StayEntryQueryExtensions
+{
+    public static IQueryable<StayEntry> AddQueryConfig(this IQueryable<StayEntry> query, StayEntryQueryConfig? config)
+    {
+        config ??= StayEntryQueryConfig.DefaultQueryConfig;
+
+        if (config.IncludeGuests)
+        {
+            query = query.Include(e => e.GuestDocuments);
+        }
+
+        if (config.UseSplitQueries)
+        {
+            query = query.AsSplitQuery();
+        }
+        if (config.DisableTracking)
+        {
+            query = query.AsNoTracking();
+        }
+
+        return query;
+    }
+}

src/Somnia.GuestLog/Program.cs

@@ -1,11 +1,19 @@
+using FluentStorage;
 using FluentValidation;
 using Microsoft.AspNetCore.Localization;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Diagnostics;
 using MudBlazor.Services;
 using Somnia.GuestLog.Components;
 using Somnia.GuestLog.Infrastructure;
+using Somnia.GuestLog.Models.Configuration;
 using Somnia.GuestLog.Models.DTOs;
 using Somnia.GuestLog.Services;
+using Somnia.GuestLog.Services.AddressQuery;
+using Somnia.GuestLog.Services.Entity;
+using Somnia.GuestLog.Services.SpainCodigoMunicipio;
+using Somnia.GuestLog.Services.StayExport;
+using Somnia.GuestLog.Utils;
 using Somnia.GuestLog.Validators;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -14,27 +22,66 @@ var connectionStringGuestLog = builder.Configuration.GetConnectionString("DbSomn
     ?? throw new InvalidOperationException("Connection string 'DbSomniaGuestLog' not found.");
 builder.Services.AddDbContextFactory<GuestLogContext>(options =>
 {
-    options.UseNpgsql(connectionStringGuestLog);
+    options.UseNpgsql(connectionStringGuestLog)
+        .UseLazyLoadingProxies()
+        .ConfigureWarnings(w => w.Log((CoreEventId.NavigationLazyLoading, LogLevel.Warning)));
+
+    // The following options help with debugging, but should
+    // be changed or removed for production.
+    if (builder.Environment.IsDevelopment())
+    {
+        options.EnableSensitiveDataLogging()
+            .EnableDetailedErrors();
+    }
 });
 
 builder.Services.AddDatabaseDeveloperPageExceptionFilter();
 
 // Add MudBlazor services
-builder.Services.AddMudServices();
+builder.Services.AddMudServices(c =>
+{
+    c.SnackbarConfiguration.PositionClass = MudBlazor.Defaults.Classes.Position.TopCenter;
+    c.SnackbarConfiguration.ShowTransitionDuration = 300;
+    c.SnackbarConfiguration.HideTransitionDuration = 500;
+    c.SnackbarConfiguration.VisibleStateDuration = 10000;
+});
 
-// Add services to the container.
+// Add components services to the container.
 builder.Services.AddRazorComponents()
     .AddInteractiveServerComponents();
 
+builder.Services.AddLocalization();
+builder.Services.AddHttpClient();
+
 // Add Validation Services
 builder.Services.AddSingleton<IValidator<GuestDocumentDTO>, GuestDocumentDTOValidator>();
 builder.Services.AddSingleton<IValidator<GuestDocIdDTO>, GuestDocIdDTOValidator>();
+builder.Services.AddSingleton<IValidator<StayEntryDTO>, StayEntryDTOValidator>();
+builder.Services.AddSingleton<IValidator<StayExportParamsDTO>, StayExportParamsDTOValidator>();
+
+// Add Entity Services
+builder.Services.AddSingleton<IGuestDocumentEntityService, GuestDocumentEntityService>();
+builder.Services.AddSingleton<IStayEntryEntityService, StayEntryEntityService>();
+builder.Services.AddSingleton<IStayExportFileEntityService, StayExportFileEntityService>();
 
 // Add Services
-builder.Services.AddSingleton<IGuestDocumentService, GuestDocumentService>();
 builder.Services.AddSingleton<IDataListService, StaticDataListService>();
+builder.Services.AddScoped<IUserMessageService, UserMessageService>();
+builder.Services.AddSingleton<ILocalizerService, LocalizerService>();
+builder.Services.AddSingleton<IStayExportService, StayExportService>();
+builder.Services.AddSingleton<ISpainCodigoMunicipioService, SpainCodigoMunicipioCatastroService>();
 
-builder.Services.AddLocalization();
+// Add Factories (and it's services)
+builder.Services.AddFactoryDI<IAddressQueryFactory, ConfigFileAddressQueryFactory>();
+builder.Services.AddFactoryDI<IStayExportFormatProviderFactory, StayExportFormatProviderFactory>();
+
+// Add Options config
+builder.Services.AddOptions<AddressQueryConfig>()
+    .Bind(builder.Configuration.GetSection(AddressQueryConfig.SectionName));
+builder.Services.AddOptions<StayExportConfig>()
+    .Bind(builder.Configuration.GetSection(StayExportConfig.SectionName));
+builder.Services.AddOptions<StayExportSpainParteViajerosConfig>()
+    .Bind(builder.Configuration.GetSection(StayExportSpainParteViajerosConfig.SectionName));
 
 var app = builder.Build();
 
@@ -69,4 +116,7 @@ app.MapStaticAssets();
 app.MapRazorComponents<App>()
     .AddInteractiveServerRenderMode();
 
+//Activate S3 storage.
+AwsS3Storage.Use();
+
 app.Run();

src/Somnia.GuestLog/Resources/DataListLocale.resx

@@ -388,4 +388,10 @@
   <data name="dataList.GenderOption.F" xml:space="preserve"><value>Female</value></data>
   <data name="dataList.GenderOption.O" xml:space="preserve"><value>Other</value></data>
 
+  <data name="dataList.PaymentMethod.EFECT" xml:space="preserve"><value>Cash</value></data>
+  <data name="dataList.PaymentMethod.TARJT" xml:space="preserve"><value>Card</value></data>
+  <data name="dataList.PaymentMethod.TRANS" xml:space="preserve"><value>Wire Transfer</value></data>
+  <data name="dataList.PaymentMethod.MOVIL" xml:space="preserve"><value>Phone</value></data>
+  <data name="dataList.PaymentMethod.OTRO" xml:space="preserve"><value>Other</value></data>
+
 </root>

src/Somnia.GuestLog/Resources/LanguageLocale.resx

@@ -122,6 +122,8 @@
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0,
       Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
+  <data name="dto.GuestDocument.Id" xml:space="preserve"><value>ID</value></data>
+  <data name="dto.GuestDocument.Version" xml:space="preserve"><value>Version</value></data>
   <data name="dto.GuestDocument.DocumentType" xml:space="preserve"><value>Document Type</value></data>
   <data name="dto.GuestDocument.DocumentNum" xml:space="preserve"><value>Document Number</value></data>
   <data name="dto.GuestDocument.IssueDate" xml:space="preserve"><value>Issue Date</value></data>
@@ -134,15 +136,34 @@
   <data name="dto.GuestDocument.Gender" xml:space="preserve"><value>Gender</value></data>
   <data name="dto.GuestDocument.PhoneNumber" xml:space="preserve"><value>Phone Number</value></data>
   <data name="dto.GuestDocument.EmailAddress" xml:space="preserve"><value>Email Address</value></data>
-  <data name="dto.GuestDocument.Address" xml:space="preserve"><value>Address</value></data>
-  <data name="dto.GuestDocument.AddressCity" xml:space="preserve"><value>City</value></data>
-  <data name="dto.GuestDocument.AddressProvince" xml:space="preserve"><value>County</value></data>
-  <data name="dto.GuestDocument.AddressState" xml:space="preserve"><value>State</value></data>
-  <data name="dto.GuestDocument.AddressCountry" xml:space="preserve"><value>Country</value></data>
-  <data name="dto.GuestDocument.ZipCode" xml:space="preserve"><value>Zip Code</value></data>
   <data name="dto.GuestDocument.CreateTime" xml:space="preserve"><value>Creation Time</value></data>
   <data name="dto.GuestDocument.UpdateTime" xml:space="preserve"><value>Update Time</value></data>
 
+  <data name="dto.StayEntry.Id" xml:space="preserve"><value>Id</value></data>
+  <data name="dto.StayEntry.DateIn" xml:space="preserve"><value>Date In</value></data>
+  <data name="dto.StayEntry.DateOut" xml:space="preserve"><value>Date Out</value></data>
+  <data name="dto.StayEntry.RoomCount" xml:space="preserve"><value>Room Count</value></data>
+  <data name="dto.StayEntry.RoomNumber" xml:space="preserve"><value>Room Number</value></data>
+  <data name="dto.StayEntry.PaymentMethod" xml:space="preserve"><value>Payment Method</value></data>
+  <data name="dto.StayEntry.GuestDocuments" xml:space="preserve"><value>Guests</value></data>
+  <data name="dto.StayEntry.CreateTime" xml:space="preserve"><value>Creation Time</value></data>
+  <data name="dto.StayEntry.UpdateTime" xml:space="preserve"><value>Update Time</value></data>
+
+  <data name="dto.StayExportFile.Id" xml:space="preserve"><value>Id</value></data>
+  <data name="dto.StayExportFile.ExportFormat" xml:space="preserve"><value>Export Format</value></data>
+  <data name="dto.StayExportFile.ExportParams" xml:space="preserve"><value>Export Params</value></data>
+  <data name="dto.StayExportFile.ExportResult" xml:space="preserve"><value>Export Result</value></data>
+  <data name="dto.StayExportFile.ExportedPath" xml:space="preserve"><value>Export Path</value></data>
+  <data name="dto.StayExportFile.ExportDetails" xml:space="preserve"><value>Export Details</value></data>
+  <data name="dto.StayExportFile.ExportTime" xml:space="preserve"><value>Export Time</value></data>
+
+  <data name="dto.StayExportParams.ExportType" xml:space="preserve"><value>Export Type</value></data>
+  <data name="dto.StayExportParams.ExportPeriodStart" xml:space="preserve"><value>Date From</value></data>
+  <data name="dto.StayExportParams.ExportPeriodEnd" xml:space="preserve"><value>Date To</value></data>
+
+  <data name="tmp" xml:space="preserve"><value>TMP</value></data>
+
+  <data name="general.actions" xml:space="preserve"><value>Actions</value></data>
   <data name="general.reloadData" xml:space="preserve"><value>Reload Data</value></data>
   <data name="general.inProgressMsg" xml:space="preserve"><value>In Progress...</value></data>
   <data name="general.ConfigureColumns" xml:space="preserve"><value>Configure Columns</value></data>
@@ -156,19 +177,83 @@
   <data name="general.btnSearch" xml:space="preserve"><value>Search</value></data>
   <data name="general.btnSave" xml:space="preserve"><value>Save</value></data>
   <data name="general.btnCancel" xml:space="preserve"><value>Cancel</value></data>
+  <data name="general.noResults" xml:space="preserve"><value>No Results!</value></data>
+  <data name="general.showAllElements" xml:space="preserve"><value>Show all elements</value></data>
   <data name="general.wildcardHelperText" xml:space="preserve"><value>Use '%' as wildcard</value></data>
+  <data name="general.dateStart" xml:space="preserve"><value>Date Start</value></data>
+  <data name="general.dateEnd" xml:space="preserve"><value>Date End</value></data>
+
+  <data name="general.address.address" xml:space="preserve"><value>Address</value></data>
+  <data name="general.address.city" xml:space="preserve"><value>City</value></data>
+  <data name="general.address.province" xml:space="preserve"><value>County</value></data>
+  <data name="general.address.state" xml:space="preserve"><value>State</value></data>
+  <data name="general.address.country" xml:space="preserve"><value>Country</value></data>
+  <data name="general.address.zipCode" xml:space="preserve"><value>Zip Code</value></data>
+
+
+  <!-- Common codes -->
+  <data name="enum.ResultCode.Ok" xml:space="preserve"><value>OK</value></data>
+  <data name="enum.ResultCode.UnknownError" xml:space="preserve"><value>Unknown Error</value></data>
+  <data name="enum.ResultCode.FailedValidation" xml:space="preserve"><value>Failed entity validation</value></data>
+  <data name="enum.ResultCode.NotFound" xml:space="preserve"><value>Not found</value></data>
+  <data name="enum.ResultCode.FileStorageError" xml:space="preserve"><value>File Storage Error</value></data>
+  <!-- Specific codes -->
+  <data name="enum.ResultCode.GuestInStay" xml:space="preserve"><value>Guest (ID: '{0}') is in a stay.</value></data>
+  <data name="enum.ResultCode.GuestCurrentlyInStay" xml:space="preserve"><value>Guest (ID: '{0}') is already in one stay during the period: {1}</value></data>
+
+  <data name="enum.StayExportFileResult.OK" xml:space="preserve"><value>OK</value></data>
+  <data name="enum.StayExportFileResult.NoData" xml:space="preserve"><value>No Data</value></data>
+  <data name="enum.StayExportFileResult.ExportError" xml:space="preserve"><value>Export Error</value></data>
+  <data name="enum.StayExportFileResult.UploadError" xml:space="preserve"><value>File Error</value></data>
+
+  <data name="enum.StayExportFormat.GuestLogJson" xml:space="preserve"><value>GuestLog JSON</value></data>
+  <data name="enum.StayExportFormat.SpainParteViajeros" xml:space="preserve"><value>Spain Parte Viajeros</value></data>
+
+  <data name="enum.StayExportParamType.PeriodDateIn" xml:space="preserve"><value>Stay 'Date In' Period</value></data>
+
+
+  <data name="navMenu.GuestDocumentList" xml:space="preserve"><value>Guests</value></data>
+  <data name="navMenu.StayEntryList" xml:space="preserve"><value>Stays</value></data>
+  <data name="navMenu.StayExport" xml:space="preserve"><value>Stay Export</value></data>
+
 
   <data name="page.GuestDocList.pageTitle" xml:space="preserve"><value>Guest Documents</value></data>
   <data name="page.GuestDocList.documentList" xml:space="preserve"><value>Document List</value></data>
   <data name="page.GuestDocList.btnNewGuest" xml:space="preserve"><value>New Guest</value></data>
-  <data name="page.GuestDocList.showAllElements" xml:space="preserve"><value>Show all elements</value></data>
 
   <data name="page.GuestDocNew.msgAlreadyExists" xml:space="preserve"><value>This Guest Document Already exists!!</value></data>
   <data name="page.GuestDocNew.btnGoExistingDoc" xml:space="preserve"><value>Go to existing document</value></data>
 
+  <data name="page.StayEntryList.pageTitle" xml:space="preserve"><value>Stay Entries</value></data>
+  <data name="page.StayEntryList.entryList" xml:space="preserve"><value>Entry List</value></data>
+  <data name="page.StayEntryList.btnNewStay" xml:space="preserve"><value>New Stay</value></data>
+
+  <data name="page.StayEntryNew.pageTitle" xml:space="preserve"><value>New Stay</value></data>
+
+  <data name="page.StayExportList.pageTitle" xml:space="preserve"><value>Stay Export Files</value></data>
+  <data name="page.StayExportList.exportList" xml:space="preserve"><value>Export List</value></data>
+  <data name="page.StayExportList.btnNewExport" xml:space="preserve"><value>New Export</value></data>
+
+  <data name="page.StayExportNew.pageTitle" xml:space="preserve"><value>New Stay Export</value></data>
+
+
   <data name="control.GuestDocForm.sectionDocument" xml:space="preserve"><value>Document Details</value></data>
   <data name="control.GuestDocForm.sectionGuest" xml:space="preserve"><value>Guest Details</value></data>
   <data name="control.GuestDocForm.sectionContact" xml:space="preserve"><value>Contact Details</value></data>
   <data name="control.GuestDocForm.sectionAddress" xml:space="preserve"><value>Guest Address</value></data>
+  <data name="control.GuestDocForm.btnSearchAddress" xml:space="preserve"><value>Search Address</value></data>
+
+  <data name="control.StayEntryForm.sectionDetails" xml:space="preserve"><value>Stay Details</value></data>
+  <data name="control.StayEntryForm.sectionGuests" xml:space="preserve"><value>Guest List</value></data>
+  <data name="control.StayEntryForm.btnAddGuest" xml:space="preserve"><value>Add Guest</value></data>
+
+  <data name="control.AddressQueryDialog.dialogTitle" xml:space="preserve"><value>Search Address</value></data>
+  <data name="control.AddressQueryDialog.searchText" xml:space="preserve"><value>Search Address</value></data>
+  <data name="control.AddressQueryDialog.btnSearch" xml:space="preserve"><value>Search Address</value></data>
+  <data name="control.AddressQueryDialog.btnSelectAddress" xml:space="preserve"><value>Use Address</value></data>
+
+  <data name="control.GuestDocumentSearchDialog.dialogTitle" xml:space="preserve"><value>Search Guest Document</value></data>
+  <data name="control.GuestDocumentSearchDialog.btnSelectDocument" xml:space="preserve"><value>Use Guest</value></data>
+  <data name="control.GuestDocumentSearchDialog.txtSuggestedGuests" xml:space="preserve"><value>Suggested Guests</value></data>
 
 </root>

src/Somnia.GuestLog/Services/AddressQuery/ConfigFileAddressQueryFactory.cs

@@ -0,0 +1,29 @@
+using Microsoft.Extensions.Options;
+using Somnia.GuestLog.Enums.Services;
+using Somnia.GuestLog.Models.Configuration;
+using Somnia.GuestLog.Utils.DI;
+
+namespace Somnia.GuestLog.Services.AddressQuery;
+
+public class ConfigFileAddressQueryFactory(
+    IServiceProvider serviceProvider,
+    IOptions<AddressQueryConfig> config
+) : IAddressQueryFactory, IFactoryDI
+{
+    public static void RegisterFactoryItems(IServiceCollection services)
+    {
+        services.AddKeyedTransient<IAddressQueryService, NominatimAddressQueryService>(AddressQueryProvider.Nominatim);
+        services.AddKeyedTransient<IAddressQueryService, GoogleApiAddressQueryService>(AddressQueryProvider.GoogleApiV4);
+    }
+
+    public IAddressQueryService GetService()
+    {
+        if (config.Value.EnableAddressQuery == false)
+        {
+            throw new InvalidOperationException("AddressQuery is disabled. Enable and configure it first!");
+        }
+
+        return serviceProvider.GetKeyedService<IAddressQueryService>(config.Value.Provider)
+            ?? throw new InvalidOperationException($"AddressQueryService not found for provider: '{config.Value.Provider}'");
+    }
+}

src/Somnia.GuestLog/Services/AddressQuery/GoogleApiAddressQueryService.cs

@@ -0,0 +1,125 @@
+using Microsoft.AspNetCore.WebUtilities;
+using Microsoft.Extensions.Options;
+using Somnia.GuestLog.Models.Configuration;
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Utils;
+
+namespace Somnia.GuestLog.Services.AddressQuery;
+
+public class GoogleApiAddressQueryService(
+    IHttpClientFactory httpClientFactory,
+    ILogger<GoogleApiAddressQueryService> logger,
+    IOptions<AddressQueryConfig> configOptions
+) : IAddressQueryService
+{
+    private const string defaultBaseAddr = "https://geocode.googleapis.com/v4/";
+    private const string defaultUserAgent = "Somnia-GuestLog";
+    private const string apiUri = "geocode/address/";
+
+    private readonly AddressQueryConfig config = configOptions.Value;
+
+
+    public async Task<List<AddressResultDTO>> SearchAddressAsync(string query)
+    {
+        var http = GetHttpClient();
+        List<AddressResultDTO> rsList = [];
+
+        try
+        {
+            string uri = GetRequestUri(query);
+            GeocodeAddressResponse? apiList = await http.GetFromJsonAsync<GeocodeAddressResponse>(uri)
+                ?? throw new InvalidOperationException("Response without results??");
+
+            foreach (GeocodeResult result in apiList.Results)
+            {
+                if (result.PostalAddress is null)
+                {
+                    logger.LogWarning("Skipping result without PostalAddress. '{result}'", result);
+                    continue;
+                }
+
+                string? alpha3CountryCode = CountryCodesUtils.Alpha2ToAlpha3(result.PostalAddress.RegionCode);
+                string? addressLine = result.PostalAddress.AddressLines is not null ? string.Join(", ", result.PostalAddress.AddressLines) : null;
+
+                string[]? formatedParts = result.FormattedAddress?.Split(",");
+                if (formatedParts is not null && formatedParts.Length < 2)
+                {
+                    formatedParts = null;
+                }
+
+                rsList.Add(new()
+                {
+                    HouseNumber = null,
+                    AddressRoad = addressLine,
+                    AddressCity = result.PostalAddress.Locality,
+                    AddressProvince = result.PostalAddress.AdministrativeArea,
+                    AddressState = null,
+                    AddressCountry = formatedParts?[^1],
+                    ZipCode = result.PostalAddress.PostalCode,
+                    AddressCountryCode = alpha3CountryCode
+                });
+            }
+
+            return rsList;
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "Error getting info from API!");
+            return [];
+        }
+    }
+
+    #region Internal Methods
+
+    private HttpClient GetHttpClient()
+    {
+        HttpClient client = httpClientFactory.CreateClient();
+
+        Uri baseAddr = new(config.ServiceURL ?? defaultBaseAddr);
+
+        client.BaseAddress = baseAddr;
+        client.DefaultRequestHeaders.UserAgent.ParseAdd(config.UserAgent ?? defaultUserAgent);
+        client.DefaultRequestHeaders.Add("X-Goog-Api-Key", config.ApiKey);
+
+        return client;
+    }
+
+    private string GetRequestUri(string query)
+    {
+        string escapedQuery = Uri.EscapeDataString(query).TrimStart('/');
+        string finalUri = $"{apiUri.TrimEnd('/')}/{escapedQuery}";
+
+        List<KeyValuePair<string, string?>> queryParams = [];
+        if (config.ResultLang is not null)
+        {
+            queryParams.Add(new KeyValuePair<string, string?>("languageCode", config.ResultLang));
+        }
+
+        return QueryHelpers.AddQueryString(finalUri, queryParams);
+    }
+
+    #endregion
+
+    #region Internal Models
+
+    private record class PostalAddress(
+        string[]? AddressLines = null,
+        string? PostalCode = null,
+
+        string? AdministrativeArea = null, //Province
+        string? Locality = null, //City
+        string? RegionCode = null //Country Code (CLDR region code)
+    );
+
+    private record class GeocodeResult(
+        string? FormattedAddress = null,
+        PostalAddress? PostalAddress = null
+    );
+
+    private record class GeocodeAddressResponse(
+        GeocodeResult[] Results = null!
+    );
+
+    #endregion
+
+}

src/Somnia.GuestLog/Services/AddressQuery/IAddressQueryFactory.cs

@@ -0,0 +1,9 @@
+namespace Somnia.GuestLog.Services.AddressQuery;
+
+public interface IAddressQueryFactory
+{
+    /// <summary>
+    /// Returns the AddressQuery service implementation given current configuration.
+    /// </summary>
+    public IAddressQueryService GetService();
+}

src/Somnia.GuestLog/Services/AddressQuery/IAddressQueryService.cs

@@ -0,0 +1,19 @@
+using Somnia.GuestLog.Models.DTOs;
+
+namespace Somnia.GuestLog.Services.AddressQuery;
+
+public interface IAddressQueryService
+{
+
+    /// <summary>
+    /// Search an address by plain text query.
+    /// Data is returned as a structured address.
+    /// This service allow to complete and validate addresses.
+    /// 
+    /// Note: Not all fields are always available for a given query.
+    /// </summary>
+    /// <param name="query">Address to search</param>
+    /// <returns>List of resulting structured addresses</returns>
+    public Task<List<AddressResultDTO>> SearchAddressAsync(string query);
+
+}

src/Somnia.GuestLog/Services/AddressQuery/NominatimAddressQueryService.cs

@@ -0,0 +1,119 @@
+using Microsoft.AspNetCore.WebUtilities;
+using Microsoft.Extensions.Options;
+using Somnia.GuestLog.Models.Configuration;
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Utils;
+
+namespace Somnia.GuestLog.Services.AddressQuery;
+
+public class NominatimAddressQueryService(
+    IHttpClientFactory httpClientFactory,
+    ILogger<NominatimAddressQueryService> logger,
+    IOptions<AddressQueryConfig> configOptions
+) : IAddressQueryService
+{
+    private const string defaultBaseAddr = "https://nominatim.openstreetmap.org";
+    private const string defaultUserAgent = "Somnia-GuestLog";
+    private const string apiUri = "/search";
+
+    private readonly AddressQueryConfig config = configOptions.Value;
+
+
+    public async Task<List<AddressResultDTO>> SearchAddressAsync(string query)
+    {
+        var http = GetHttpClient();
+        List<AddressResultDTO> rsList = [];
+
+        try
+        {
+            string uri = GetRequestUri(query);
+            List<ApiResult> apiList = (await http.GetFromJsonAsync<List<ApiResult>>(uri)) ?? [];
+
+            foreach (ApiResult result in apiList)
+            {
+                if (result.Address is null)
+                {
+                    logger.LogWarning("Skipping result without address details. '{result}'", result);
+                    continue;
+                }
+
+                string? alpha3CountryCode = CountryCodesUtils.Alpha2ToAlpha3(result.Address.Country_code);
+
+                rsList.Add(new()
+                {
+                    HouseNumber = result.Address.House_number,
+                    AddressRoad = result.Address.Road ?? result.Address.Square,
+                    AddressCity = result.Address.City ?? result.Address.Municipality ?? result.Address.Town ?? result.Address.Village,
+                    AddressProvince = result.Address.Province ?? result.Address.State_district ?? result.Address.County,
+                    AddressState = result.Address.State,
+                    AddressCountry = result.Address.Country,
+                    ZipCode = result.Address.Postcode,
+                    AddressCountryCode = alpha3CountryCode
+                });
+            }
+
+            return rsList;
+        }
+        catch (System.Exception ex)
+        {
+            logger.LogError(ex, "Error getting info from API!");
+            return [];
+        }
+    }
+
+
+    private HttpClient GetHttpClient()
+    {
+        HttpClient client = httpClientFactory.CreateClient();
+
+        Uri baseAddr = new(config.ServiceURL ?? defaultBaseAddr);
+
+        client.BaseAddress = baseAddr;
+        client.DefaultRequestHeaders.UserAgent.ParseAdd(config.UserAgent ?? defaultUserAgent);
+        if (config.ResultLang is not null)
+        {
+            client.DefaultRequestHeaders.AcceptLanguage.ParseAdd(config.ResultLang);
+        }
+
+        return client;
+    }
+
+    private static string GetRequestUri(string query)
+    {
+        return QueryHelpers.AddQueryString(apiUri, [
+            new KeyValuePair<string, string?>("format", "jsonv2"),
+            new KeyValuePair<string, string?>("addressdetails", "1"),
+            new KeyValuePair<string, string?>("layer", "address"),
+            new KeyValuePair<string, string?>("q", query),
+        ]);
+    }
+
+    private record class ApiResultAddress(
+        string? House_number = null,
+        string? Road = null,
+        string? Square = null,
+        string? City = null,
+        string? Municipality = null,
+        string? Village = null,
+        string? Town = null,
+        string? Province = null,
+        string? State_district = null,
+        string? County = null,
+        string? State = null,
+        string? Country = null,
+        string? Postcode = null,
+        string? Country_code = null
+    );
+
+    private record class ApiResult(
+        string? Osm_type = null,
+        long? Osm_id = null,
+        string? Category = null,
+        string? AddressType = null,
+        string? Name = null,
+        string? Display_name = null,
+        ApiResultAddress? Address = null
+    );
+
+
+}

src/Somnia.GuestLog/Services/Entity/GuestDocumentEntityService.cs

@@ -0,0 +1,233 @@
+using FluentValidation;
+using Microsoft.EntityFrameworkCore;
+using Somnia.GuestLog.Enums.Services;
+using Somnia.GuestLog.Infrastructure;
+using Somnia.GuestLog.Models;
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Models.Entities;
+using Somnia.GuestLog.Utils;
+
+namespace Somnia.GuestLog.Services.Entity;
+
+public class GuestDocumentEntityService(
+    ILogger<GuestDocumentEntityService> logger,
+    IDbContextFactory<GuestLogContext> contextFactory,
+    IValidator<GuestDocumentDTO> dtoValidator,
+    IStayEntryEntityService stayEntityService
+) : IGuestDocumentEntityService
+{
+    public async Task<Result> CreateDocumentAsync(GuestDocumentDTO dto)
+    {
+        ArgumentNullException.ThrowIfNull(dto);
+
+        var valResult = dtoValidator.Validate(dto);
+        if (!valResult.IsValid)
+        {
+            logger.LogWarning("GuestDocumentService - CreateDocument: Dto validation failed. Fix the errors: {errorList}", valResult.Errors);
+            return Result.Fail(ResultCode.FailedValidation);
+        }
+
+        //Dto must be valid, so null warings shouldn't matter.
+        GuestAddress addressItem = new()
+        {
+            Address = dto.Address,
+            AddressCity = dto.AddressCity,
+            AddressProvince = dto.AddressProvince,
+            AddressState = dto.AddressState,
+            AddressCountry = dto.AddressCountry!,
+            ZipCode = dto.ZipCode,
+        };
+
+        DateTime createTime = DateTime.UtcNow;
+        GuestDocument dbItem = new()
+        {
+            Version = GuestConsts.GuestDocument_FirstVersion,
+            DocumentType = dto.DocumentType!,
+            DocumentNum = dto.DocumentNum!,
+            IssueDate = DateOnly.FromDateTime(dto.IssueDate!.Value),
+            SupportNum = dto.SupportNum,
+            Nationality = dto.Nationality!,
+            Name = dto.Name!,
+            Surname = dto.Surname!,
+            Surname2 = dto.Surname2,
+            BirthDate = DateOnly.FromDateTime(dto.BirthDate!.Value),
+            Gender = dto.Gender,
+            PhoneNumber = dto.PhoneNumber,
+            EmailAddress = dto.EmailAddress,
+            AddressDetails = addressItem,
+            CreateTime = createTime,
+            UpdateTime = createTime,
+            IsLastVersion = true, //On creation, created entity is last version.
+        };
+
+        try
+        {
+            using var dbContext = contextFactory.CreateDbContext();
+            await dbContext.AddAsync(dbItem);
+            await dbContext.SaveChangesAsync();
+
+            logger.LogInformation("GuestDocumentService - CreateDocument: GuestDocument Created: '{id}'", dbItem.GetFullKey());
+            return Result.Ok();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "GuestDocumentService - CreateDocument: Error creating GuestDocument: '{id}'", dbItem.GetFullKey());
+            return Result.FailUnknownError();
+        }
+    }
+
+    public Task<Result> UpdateDocumentAsync(GuestDocumentDTO dto)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result> DeleteDocumentAsync(GuestDocumentDTO dto)
+    {
+        if (dto.Id is null)
+        {
+            throw new InvalidOperationException("GuestDocumentService - DeleteDocument: A DTO without ID can't be deleted!");
+        }
+
+        return DeleteDocumentAsync(dto.Id.Value);
+    }
+
+    public async Task<Result> DeleteDocumentAsync(long id)
+    {
+        try
+        {
+            using var dbContext = contextFactory.CreateDbContext();
+
+            //Check if GuestDocument is used in a Stay.
+            bool isUsed = await stayEntityService.IsGuestInStay(id);
+            if (isUsed)
+            {
+                logger.LogWarning("GuestDocumentService - DeleteDocument: Error deleting GuestDocument. Guest (ID: '{ID}') is in a Stay", id);
+                return Result.FailWithContext(ResultCode.GuestInStay, id);
+            }
+
+            int deletedCount = await dbContext.GuestDocuments
+               .Where(e => e.Id == id)
+               .ExecuteDeleteAsync();
+
+            if (deletedCount == 0)
+            {
+                logger.LogWarning("GuestDocumentService - DeleteDocument: Error deleting GuestDocument. Entity not found with ID: '{ID}'", id);
+                return Result.Fail(ResultCode.NotFound);
+            }
+
+            logger.LogInformation(
+                "GuestDocumentService - DeleteDocument: GuestDocument deleted with Id: '{id}'. Versions deleted: '{Count}'",
+                id, deletedCount);
+            return Result.Ok();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "GuestDocumentService - CreateDocument: Error deleting GuestDocument: '{id}'", id);
+            return Result.FailUnknownError();
+        }
+    }
+
+    public async Task<GuestDocumentDTO?> GetLastVersionDtoByIdAsync(long id)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+        GuestDocument? dbItem = await dbContext.GuestDocuments
+            .Where(e => e.Id == id)
+            .OrderByDescending(e => e.Version)
+            .FirstOrDefaultAsync();
+
+        return dbItem is not null ? GetDtoFromDb(dbItem) : null;
+    }
+
+    public async Task<GuestDocumentDTO?> GetLastVersionDtoByDocumentAsync(string docType, string docNum)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+        GuestDocument? dbItem = await dbContext.GuestDocuments
+            .Where(e => e.DocumentType == docType && e.DocumentNum == docNum)
+            .OrderByDescending(e => e.Version)
+            .FirstOrDefaultAsync();
+
+        return dbItem is not null ? GetDtoFromDb(dbItem) : null;
+    }
+
+    public async Task<IEnumerable<GuestDocumentDTO>> GetDtoListAsync(bool onlyLastVersion)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+
+        // TEMP solution
+        var query = dbContext.GuestDocuments.AsQueryable();
+        if (onlyLastVersion)
+        {
+            query = query.Where(e => e.IsLastVersion == true);
+        }
+        var dbList = await query.OrderByDescending(e => e.UpdateTime)
+            .ToListAsync();
+
+        // TODO: Waiting for EF Core Window function improvements:
+        //  See expected translation: https://github.com/dotnet/efcore/issues/36380#issuecomment-3082788964
+        //  See window function status: https://github.com/dotnet/efcore/issues/12747
+        // var dbList = await dbContext.GuestDocuments
+        //     .GroupBy(e => e.Id)
+        //     .Select(g => g.OrderByDescending(e => e.Version).First())
+        //     .ToListAsync();
+
+        return dbList.Select(GetDtoFromDb);
+    }
+
+    /// <summary>
+    /// Get GuestDocumentDTO from DB with the given filters.
+    /// Result count can be limited for perfomance reasons.
+    /// </summary>
+    /// <param name="filter">Filters to use</param>
+    /// <param name="limit">Result count. Set to 0 for unlimited results</param>
+    /// <returns>Filtered GuestDocumentDTO result list</returns>
+    public async Task<IEnumerable<GuestDocumentDTO>> GetDtoListByFilterAsync(GuestDocFilterDTO filter, int limit = 0)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+
+        var query = dbContext.GuestDocuments.AsQueryable();
+
+        query = query.WhereIf(!string.IsNullOrEmpty(filter.DocumentType),
+            e => e.DocumentType == filter.DocumentType);
+        query = query.WhereIf(!string.IsNullOrEmpty(filter.DocumentNumber),
+            e => e.DocumentNum == filter.DocumentNumber);
+
+        query = query.WhereIf(!string.IsNullOrEmpty(filter.Name),
+            e => EF.Functions.Like(e.Name, filter.Name));
+        query = query.WhereIf(!string.IsNullOrEmpty(filter.Surname),
+            e => EF.Functions.Like(e.Surname, filter.Surname));
+
+        // TEMP while waiting for EF Core Window function improvements
+        query = query.WhereIf(filter.OnlyLastVersion,
+            e => e.IsLastVersion == true);
+        query = query.OrderByDescending(e => e.UpdateTime);
+
+
+        // TODO: Waiting for EF Core Window function improvements:
+        //  See: https://github.com/dotnet/efcore/issues/27470
+        //  See window function status: https://github.com/dotnet/efcore/issues/12747
+        //  For Ordering (or operations post-grouping), see: https://github.com/dotnet/efcore/pull/38687
+        // query = query
+        //     .OrderByDescending(e => e.UpdateTime)
+        //     .GroupBy(e => e.Id)
+        //     .Select(g => g.OrderByDescending(e => e.Version).First());
+
+        if (limit > 0)
+        {
+            query = query.Take(limit);
+        }
+
+        var dbList = await query.ToListAsync();
+
+        return dbList.Select(x => GetDtoFromDb(x));
+    }
+
+
+    #region Internal Methods
+
+    private static GuestDocumentDTO GetDtoFromDb(GuestDocument dbItem)
+    {
+        return EntityMapping.MapGuestDocumentEntityToDTO(dbItem);
+    }
+
+    #endregion
+}

src/Somnia.GuestLog/Services/Entity/IGuestDocumentEntityService.cs

@@ -0,0 +1,28 @@
+using Somnia.GuestLog.Models.DTOs;
+
+namespace Somnia.GuestLog.Services.Entity;
+
+public interface IGuestDocumentEntityService
+{
+    public Task<Result> CreateDocumentAsync(GuestDocumentDTO dto);
+    public Task<Result> UpdateDocumentAsync(GuestDocumentDTO dto);
+
+    /// <summary>
+    /// Same behavior as <see cref="DeleteDocumentAsync(long)"/>
+    /// </summary>
+    public Task<Result> DeleteDocumentAsync(GuestDocumentDTO dto);
+
+    /// <summary>
+    /// Delete documents by ID.
+    /// This operation will delete all versions of a document.
+    /// </summary>
+    /// <param name="id">ID of the document to Delete</param>
+    public Task<Result> DeleteDocumentAsync(long id);
+
+    public Task<GuestDocumentDTO?> GetLastVersionDtoByIdAsync(long id);
+    public Task<GuestDocumentDTO?> GetLastVersionDtoByDocumentAsync(string docType, string docNum);
+
+    public Task<IEnumerable<GuestDocumentDTO>> GetDtoListAsync(bool onlyLastVersion);
+    public Task<IEnumerable<GuestDocumentDTO>> GetDtoListByFilterAsync(GuestDocFilterDTO filter, int limit = 0);
+
+}

src/Somnia.GuestLog/Services/Entity/IStayEntryEntityService.cs

@@ -0,0 +1,22 @@
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Models.QueryConfigs;
+
+namespace Somnia.GuestLog.Services.Entity;
+
+public interface IStayEntryEntityService
+{
+    public Task<Result> CreateEntryAsync(StayEntryDTO dto);
+    public Task<Result> UpdateEntryAsync(StayEntryDTO updatedDto);
+    public Task<Result> DeleteEntryAsync(StayEntryDTO dto);
+    public Task<Result> DeleteEntryAsync(long id);
+
+    public Task<StayEntryDTO?> GetDtoByIdAsync(long id, StayEntryQueryConfig? queryConfig = null);
+    public Task<IEnumerable<StayEntryDTO>> GetDtoListAsync(StayEntryQueryConfig? queryConfig = null);
+    public Task<IEnumerable<StayEntryDTO>> GetDtoListByFilterAsync(StayEntryFilterDTO filter, int limit = 0, StayEntryQueryConfig? queryConfig = null);
+
+
+    public Task<bool> IsGuestInStay(long guestDocId);
+    public Task<bool> IsGuestInStayInPeriod(long guestDocId, DateTime startTime, DateTime endTime);
+    public Task<IEnumerable<StayEntryDTO>> GetStaysWithGuest(long guestDocId, StayEntryQueryConfig? queryConfig = null);
+
+}

src/Somnia.GuestLog/Services/Entity/IStayExportFileEntityService.cs

@@ -0,0 +1,19 @@
+using Somnia.GuestLog.Models.DTOs;
+
+namespace Somnia.GuestLog.Services.Entity;
+
+public interface IStayExportFileEntityService
+{
+    public Task<Result> CreateStayExportAsync(StayExportFileDTO dto);
+    public Task<Result> UpdateStayExportAsync(StayExportFileDTO dto);
+
+    /// <summary>
+    /// Delete StayExport entry from DB.
+    /// Exported File won't be deleted from Storage.
+    /// </summary>
+    public Task<Result> DeleteStayExportAsync(StayExportFileDTO dto);
+
+    public Task<StayExportFileDTO?> GetDtoByIdAsync(long id);
+    //public Task<IEnumerable<StayExportFileDTO>> GetDtoListByFilterAsync(StayExportFileFilterDTO filter, int limit = 0);
+    public Task<IEnumerable<StayExportFileDTO>> GetDtoListAsync(int limit = 0);
+}

src/Somnia.GuestLog/Services/Entity/StayEntryEntityService.cs

@@ -0,0 +1,217 @@
+using FluentValidation;
+using Microsoft.EntityFrameworkCore;
+using Somnia.GuestLog.Enums.Services;
+using Somnia.GuestLog.Infrastructure;
+using Somnia.GuestLog.Models;
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Models.Entities;
+using Somnia.GuestLog.Models.QueryConfigs;
+using Somnia.GuestLog.Utils;
+
+namespace Somnia.GuestLog.Services.Entity;
+
+public class StayEntryEntityService(
+    ILogger<StayEntryEntityService> logger,
+    IDbContextFactory<GuestLogContext> contextFactory,
+    IValidator<StayEntryDTO> dtoValidator
+) : IStayEntryEntityService
+{
+    public async Task<Result> CreateEntryAsync(StayEntryDTO dto)
+    {
+        ArgumentNullException.ThrowIfNull(dto);
+
+        var valResult = await dtoValidator.ValidateAsync(dto);
+        if (!valResult.IsValid)
+        {
+            logger.LogWarning("StayEntryService - CreateEntryAsync: Dto validation failed. Fix the errors: {errorList}", valResult.Errors);
+            return Result.Fail(ResultCode.FailedValidation);
+        }
+
+        DateTime createTime = DateTime.UtcNow;
+        StayEntry dbStay = new()
+        {
+            DateIn = dto.DateIn!.Value.ToUniversalTime(),
+            DateOut = dto.DateOut!.Value.ToUniversalTime(),
+            RoomCount = dto.RoomCount!.Value,
+            RoomNumber = dto.RoomNumber,
+            PaymentMethod = dto.PaymentMethod!,
+            CreateTime = createTime,
+            UpdateTime = createTime,
+        };
+
+        try
+        {
+            using var dbContext = contextFactory.CreateDbContext();
+
+            //Check and add GuestDocuments
+            foreach (GuestDocumentDTO guestDto in dto.GuestDocuments!)
+            {
+                //Get guest from db.
+                GuestDocument dbGuest = await dbContext.GuestDocuments
+                    .Where(gd => gd.Id == guestDto.Id && gd.Version == guestDto.Version)
+                    .SingleAsync();
+
+                //Check if Guest is already in other stay during the same period.
+                bool isInOtherStay = await this.IsGuestInStayInPeriod(dbGuest.Id, dbStay.DateIn, dbStay.DateOut);
+                if (isInOtherStay)
+                {
+                    string period = $"{dbStay.DateIn}-{dbStay.DateOut}";
+                    return Result.FailWithContext(ResultCode.GuestCurrentlyInStay, dbGuest.GetFullKey(), period);
+                }
+
+                //Add dbGuest to dbStay.
+                dbStay.GuestDocuments.Add(dbGuest);
+            }
+
+            await dbContext.AddAsync(dbStay);
+            await dbContext.SaveChangesAsync();
+
+            logger.LogInformation("StayEntryService - CreateEntryAsync: StayEntry Created: '{id}'", dbStay.GetFullKey());
+            return Result.Ok();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "StayEntryService - CreateEntryAsync: Error creating StayEntry");
+            return Result.FailUnknownError();
+        }
+    }
+
+    public Task<Result> UpdateEntryAsync(StayEntryDTO updatedDto)
+    {
+        throw new NotImplementedException();
+    }
+
+    public async Task<Result> DeleteEntryAsync(StayEntryDTO dto)
+    {
+        if (dto.Id is null)
+        {
+            throw new InvalidOperationException("StayEntryService - DeleteEntry: A DTO without key can't be deleted!");
+        }
+
+        return await DeleteEntryAsync(dto.Id.Value);
+    }
+
+    public async Task<Result> DeleteEntryAsync(long id)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+        StayEntry? dbItem = await dbContext.StayEntries.FindAsync(id);
+        if (dbItem is null)
+        {
+            logger.LogWarning("StayEntryService - DeleteEntry: Error deleting StayEntry. Entity not found with key: '{key}'", id);
+            return Result.Fail(ResultCode.NotFound);
+        }
+
+        try
+        {
+            dbContext.StayEntries.Remove(dbItem);
+            await dbContext.SaveChangesAsync();
+
+            logger.LogInformation("StayEntryService - DeleteEntry: StayEntry deleted: '{id}'", dbItem.GetFullKey());
+            return Result.Ok();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "StayEntryService - DeleteEntry: Error deleting StayEntry: '{id}'", dbItem.GetFullKey());
+            return Result.FailUnknownError();
+        }
+    }
+
+    public async Task<StayEntryDTO?> GetDtoByIdAsync(long id, StayEntryQueryConfig? queryConfig = null)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+        StayEntry? dbItem = await dbContext.StayEntries
+            .Where(e => e.Id == id)
+            .AddQueryConfig(queryConfig)
+            .FirstOrDefaultAsync();
+
+        return dbItem is not null ? GetDtoFromDb(dbItem, queryConfig) : null;
+    }
+
+    public async Task<IEnumerable<StayEntryDTO>> GetDtoListAsync(StayEntryQueryConfig? queryConfig = null)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+
+        var dbList = await dbContext.StayEntries
+            .AddQueryConfig(queryConfig)
+            .OrderByDescending(e => e.UpdateTime)
+            .ToListAsync();
+
+        return dbList.Select(e => GetDtoFromDb(e, queryConfig));
+    }
+
+    public async Task<IEnumerable<StayEntryDTO>> GetDtoListByFilterAsync(StayEntryFilterDTO filter, int limit = 0, StayEntryQueryConfig? queryConfig = null)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+
+        var query = dbContext.StayEntries
+            .AddQueryConfig(queryConfig)
+            .AsQueryable();
+
+        query = query.WhereIf(filter.DateInStart is not null && filter.DateInEnd is not null,
+            e => e.DateIn >= filter.DateInStart!.Value.ToUniversalTime()
+                && e.DateIn < filter.DateInEnd!.Value.ToUniversalTime());
+        query = query.WhereIf(!string.IsNullOrEmpty(filter.RoomNumber),
+            e => EF.Functions.Like(e.RoomNumber, $"%{filter.RoomNumber}%"));
+        query = query.WhereIf(!string.IsNullOrEmpty(filter.PaymentMethod),
+            e => e.PaymentMethod == filter.PaymentMethod);
+
+        query = query.OrderByDescending(e => e.DateIn);
+
+        if (limit > 0)
+        {
+            query = query.Take(limit);
+        }
+
+        var dbList = await query
+            .ToListAsync();
+
+        return dbList.Select(x => GetDtoFromDb(x, queryConfig));
+    }
+
+
+    public async Task<bool> IsGuestInStay(long guestDocId)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+
+        bool rs = await dbContext.StayEntries
+            .AnyAsync(s => s.GuestDocuments.Any(g => g.Id == guestDocId));
+
+        return rs;
+    }
+
+    public async Task<bool> IsGuestInStayInPeriod(long guestDocId, DateTime startTime, DateTime endTime)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+
+        bool rs = await dbContext.StayEntries
+            .AnyAsync(s => s.DateIn < endTime && s.DateOut > startTime
+                && s.GuestDocuments.Any(g => g.Id == guestDocId)
+            );
+
+        return rs;
+    }
+
+    public async Task<IEnumerable<StayEntryDTO>> GetStaysWithGuest(long guestDocId, StayEntryQueryConfig? queryConfig = null)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+
+        var rs = await dbContext.StayEntries
+            .Where(s => s.GuestDocuments.Any(g => g.Id == guestDocId))
+            .AddQueryConfig(queryConfig)
+            .OrderByDescending(e => e.DateIn)
+            .ToListAsync();
+
+        return rs.Select(e => GetDtoFromDb(e, queryConfig));
+    }
+
+    #region Internal Methods
+
+    private static StayEntryDTO GetDtoFromDb(StayEntry dbItem, StayEntryQueryConfig? queryConfig)
+    {
+        queryConfig ??= StayEntryQueryConfig.DefaultQueryConfig;
+
+        return EntityMapping.MapStayEntryEntityToDTO(dbItem, queryConfig.IncludeGuests);
+    }
+
+    #endregion
+}

src/Somnia.GuestLog/Services/Entity/StayExportFileEntityService.cs

@@ -0,0 +1,139 @@
+using FluentValidation;
+using Microsoft.EntityFrameworkCore;
+using Somnia.GuestLog.Enums.Services;
+using Somnia.GuestLog.Infrastructure;
+using Somnia.GuestLog.Models;
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Models.Entities;
+using Somnia.GuestLog.Utils;
+
+namespace Somnia.GuestLog.Services.Entity;
+
+public class StayExportFileEntityService(
+    ILogger<StayExportFileEntityService> logger,
+    IDbContextFactory<GuestLogContext> contextFactory
+) : IStayExportFileEntityService
+{
+    public async Task<Result> CreateStayExportAsync(StayExportFileDTO dto)
+    {
+        ArgumentNullException.ThrowIfNull(dto, nameof(dto));
+
+        //Check for null values in the DTO.
+        if (dto.ExportFormat == null || dto.ExportResult == null || dto.ExportTime == null)
+        {
+            throw new InvalidOperationException("StayExportFile dto contains null fields");
+        }
+
+        if (dto.ExportParams == null)
+        {
+            throw new InvalidOperationException("StayExportFile dto contains null ExportParams");
+        }
+
+        StayExportParams exportParams = GetExportParamsFromDTO(dto.ExportParams);
+        StayExportFile dbItem = new()
+        {
+            ExportFormat = dto.ExportFormat.Value,
+            ExportParams = exportParams,
+            ExportResult = dto.ExportResult.Value,
+            ExportedPath = dto.ExportedPath,
+            ExportDetails = dto.ExportDetails,
+            ExportTime = dto.ExportTime?.ToUniversalTime() ?? DateTime.UtcNow,
+        };
+
+        try
+        {
+            using var dbContext = contextFactory.CreateDbContext();
+            await dbContext.AddAsync(dbItem);
+            await dbContext.SaveChangesAsync();
+
+            logger.LogInformation("StayExportFileService - CreateStayExportAsync: GuestDocument Created: '{id}'", dbItem.GetFullKey());
+            return Result.Ok();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "StayExportFileService - CreateStayExportAsync: Error creating GuestDocument");
+            return Result.FailUnknownError();
+        }
+    }
+
+    public Task<Result> UpdateStayExportAsync(StayExportFileDTO dto)
+    {
+        throw new NotImplementedException();
+    }
+
+    public async Task<Result> DeleteStayExportAsync(StayExportFileDTO dto)
+    {
+        try
+        {
+            using var dbContext = contextFactory.CreateDbContext();
+
+            int deletedCount = await dbContext.StayExportFiles
+                .Where(e => e.Id == dto.Id)
+                .ExecuteDeleteAsync();
+
+            if (deletedCount == 0)
+            {
+                logger.LogWarning("StayExportFileService - DeleteStayExportAsync: Error deleting StayExport. Entity not found with ID: '{ID}'", dto.Id);
+                return Result.Fail(ResultCode.NotFound);
+            }
+
+            logger.LogInformation(
+                "StayExportFileService - DeleteStayExportAsync: StayExport deleted with Id: '{id}'.", dto.Id);
+            return Result.Ok();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "StayExportFileService - DeleteStayExportAsync: Error creating GuestDocument");
+            return Result.FailUnknownError();
+        }
+    }
+
+
+    public async Task<StayExportFileDTO?> GetDtoByIdAsync(long id)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+        StayExportFile? dbItem = await dbContext.StayExportFiles
+            .Where(e => e.Id == id)
+            .FirstOrDefaultAsync();
+
+        return dbItem is not null ? GetDtoFromDb(dbItem) : null;
+    }
+
+    public async Task<IEnumerable<StayExportFileDTO>> GetDtoListAsync(int limit = 0)
+    {
+        using var dbContext = contextFactory.CreateDbContext();
+
+        IQueryable<StayExportFile> query = dbContext.StayExportFiles
+            .OrderByDescending(e => e.ExportTime)
+            .WithLimit(limit);
+
+        var dbList = await query.ToListAsync();
+
+        return dbList.Select(e => GetDtoFromDb(e));
+    }
+
+
+    #region Internal Methods
+
+    private static StayExportFileDTO GetDtoFromDb(StayExportFile dbItem)
+    {
+        return EntityMapping.MapStayExportFileEntityToDTO(dbItem);
+    }
+
+    private static StayExportParams GetExportParamsFromDTO(StayExportParamsDTO dto)
+    {
+        if (dto.ExportType == null)
+        {
+            throw new InvalidOperationException("Dto with invalid data");
+        }
+
+        return new()
+        {
+            ExportType = dto.ExportType.Value,
+            ExportPeriodStart = dto.ExportPeriodStart?.ToUniversalTime(),
+            ExportPeriodEnd = dto.ExportPeriodEnd?.ToUniversalTime()
+        };
+    }
+
+    #endregion
+}

src/Somnia.GuestLog/Services/GuestDocumentService.cs

@@ -1,192 +0,0 @@
-using FluentValidation;
-using Microsoft.EntityFrameworkCore;
-using Somnia.GuestLog.Infrastructure;
-using Somnia.GuestLog.Models.DTOs;
-using Somnia.GuestLog.Models.Entities;
-using Somnia.GuestLog.Utils;
-
-namespace Somnia.GuestLog.Services;
-
-public class GuestDocumentService(
-    ILogger<GuestDocumentService> logger,
-    IDbContextFactory<GuestLogContext> contextFactory,
-    IValidator<GuestDocumentDTO> dtoValidator
-) : IGuestDocumentService
-{
-    public async Task<bool> CreateDocumentAsync(GuestDocumentDTO dto)
-    {
-        ArgumentNullException.ThrowIfNull(dto);
-
-        var valResult = dtoValidator.Validate(dto);
-        if (!valResult.IsValid)
-        {
-            logger.LogWarning("GuestDocumentService - CreateDocument: Dto validation failed. Fix the errors: {errorList}", valResult.Errors);
-            return false;
-        }
-
-        //Dto must be valid, so null warings shouldn't matter.
-        GuestAddress addressItem = new()
-        {
-            Address = dto.Address,
-            AddressCity = dto.AddressCity,
-            AddressProvince = dto.AddressProvince,
-            AddressState = dto.AddressState,
-            AddressCountry = dto.AddressCountry!,
-            ZipCode = dto.ZipCode,
-        };
-
-        GuestDocument dbItem = new()
-        {
-            DocumentType = dto.DocumentType!,
-            DocumentNum = dto.DocumentNum!,
-            IssueDate = DateOnly.FromDateTime(dto.IssueDate!.Value),
-            SupportNum = dto.SupportNum,
-            Nationality = dto.Nationality!,
-            Name = dto.Name!,
-            Surname = dto.Surname!,
-            Surname2 = dto.Surname2,
-            BirthDate = DateOnly.FromDateTime(dto.BirthDate!.Value),
-            Gender = dto.Gender,
-            PhoneNumber = dto.PhoneNumber,
-            EmailAddress = dto.EmailAddress,
-            AddressDetails = addressItem,
-            CreateTime = DateTime.UtcNow,
-            UpdateTime = DateTime.UtcNow,
-        };
-
-        try
-        {
-            using var dbContext = contextFactory.CreateDbContext();
-            await dbContext.AddAsync(dbItem);
-            await dbContext.SaveChangesAsync();
-
-            logger.LogInformation("GuestDocumentService - CreateDocument: GuestDocument Created: '{id}'", dbItem.GetFullKey());
-            return true;
-        }
-        catch (Exception ex)
-        {
-            logger.LogError(ex, "GuestDocumentService - CreateDocument: Error creating GuestDocument: '{id}'", dbItem.GetFullKey());
-            return false;
-        }
-    }
-
-    public Task<bool> UpdateDocumentAsync(GuestDocumentDTO dto)
-    {
-        throw new NotImplementedException();
-    }
-
-    public Task<bool> DeleteDocumentAsync(GuestDocumentDTO dto)
-    {
-        if (dto.DocumentType is null || dto.DocumentNum is null)
-        {
-            throw new InvalidOperationException("GuestDocumentService - DeleteDocument: A DTO without key can't be deleted!");
-        }
-
-        return DeleteDocumentAsync(dto.DocumentType, dto.DocumentNum);
-    }
-
-    public async Task<bool> DeleteDocumentAsync(string docType, string docNum)
-    {
-        using var dbContext = contextFactory.CreateDbContext();
-        GuestDocument? dbItem = await dbContext.GuestDocuments.FindAsync(docType, docNum);
-        if (dbItem is null)
-        {
-            logger.LogWarning("GuestDocumentService - DeleteDocument: Error deleting GuestDocument. Entity not found with key: '{key}-{key2}'", docType, docNum);
-            return false;
-        }
-
-        try
-        {
-            dbContext.GuestDocuments.Remove(dbItem);
-            await dbContext.SaveChangesAsync();
-
-            logger.LogInformation("GuestDocumentService - DeleteDocument: GuestDocument deleted: '{id}'", dbItem.GetFullKey());
-            return true;
-        }
-        catch (Exception ex)
-        {
-            logger.LogError(ex, "GuestDocumentService - CreateDocument: Error deleting GuestDocument: '{id}'", dbItem.GetFullKey());
-            return false;
-        }
-    }
-
-
-    public async Task<GuestDocumentDTO?> GetDtoByIdAsync(string docType, string docNum)
-    {
-        using var dbContext = contextFactory.CreateDbContext();
-        GuestDocument? dbItem = await dbContext.GuestDocuments.FindAsync(docType, docNum);
-        return dbItem is not null ? GetDtoFromDb(dbItem) : null;
-    }
-
-    public async Task<IEnumerable<GuestDocumentDTO>> GetDtoListAsync()
-    {
-        using var dbContext = contextFactory.CreateDbContext();
-        var dbList = await dbContext.GuestDocuments
-            .OrderByDescending(e => e.UpdateTime)
-            .ToListAsync();
-
-        return dbList.Select(x => GetDtoFromDb(x));
-    }
-
-    /// <summary>
-    /// Get GuestDocumentDTO from DB with the given filters.
-    /// Result count can be limited for perfomance reasons.
-    /// </summary>
-    /// <param name="filter">Filters to use</param>
-    /// <param name="limit">Result count. Set to 0 for unlimited results</param>
-    /// <returns>Filtered GuestDocumentDTO result list</returns>
-    public async Task<IEnumerable<GuestDocumentDTO>> GetDtoListByFilterAsync(GuestDocFilterDTO filter, int limit = 0)
-    {
-        using var dbContext = contextFactory.CreateDbContext();
-
-        var query = dbContext.GuestDocuments.AsQueryable();
-
-        query = query.WhereIf(!string.IsNullOrEmpty(filter.DocumentType),
-            e => e.DocumentType == filter.DocumentType);
-        query = query.WhereIf(!string.IsNullOrEmpty(filter.DocumentNumber),
-            e => e.DocumentNum == filter.DocumentNumber);
-
-        query = query.WhereIf(!string.IsNullOrEmpty(filter.Name),
-            e => EF.Functions.Like(e.Name, filter.Name));
-        query = query.WhereIf(!string.IsNullOrEmpty(filter.Surname),
-            e => EF.Functions.Like(e.Surname, filter.Surname));
-
-        query = query.OrderByDescending(e => e.UpdateTime);
-
-        if (limit > 0)
-        {
-            query = query.Take(limit);
-        }
-
-        var dbList = await query.ToListAsync();
-
-        return dbList.Select(x => GetDtoFromDb(x));
-    }
-
-    public GuestDocumentDTO GetDtoFromDb(GuestDocument dbItem)
-    {
-        return new()
-        {
-            DocumentType = dbItem.DocumentType,
-            DocumentNum = dbItem.DocumentNum,
-            IssueDate = dbItem.IssueDate.ToDateTime(TimeOnly.MinValue),
-            SupportNum = dbItem.SupportNum,
-            Nationality = dbItem.Nationality,
-            Name = dbItem.Name,
-            Surname = dbItem.Surname,
-            Surname2 = dbItem.Surname2,
-            BirthDate = dbItem.BirthDate.ToDateTime(TimeOnly.MinValue),
-            Gender = dbItem.Gender,
-            PhoneNumber = dbItem.PhoneNumber,
-            EmailAddress = dbItem.EmailAddress,
-            Address = dbItem.AddressDetails?.Address ?? "",
-            AddressCity = dbItem.AddressDetails?.AddressCity ?? "",
-            AddressProvince = dbItem.AddressDetails?.AddressProvince ?? "",
-            AddressState = dbItem.AddressDetails?.AddressState ?? "",
-            AddressCountry = dbItem.AddressDetails?.AddressCountry! ?? "",
-            ZipCode = dbItem.AddressDetails?.ZipCode ?? "",
-            CreateTime = dbItem.CreateTime,
-            UpdateTime = dbItem.UpdateTime,
-        };
-    }
-}

src/Somnia.GuestLog/Services/IGuestDocumentService.cs

@@ -1,18 +0,0 @@
-using Somnia.GuestLog.Models.DTOs;
-
-namespace Somnia.GuestLog.Services;
-
-public interface IGuestDocumentService
-{
-    public Task<bool> CreateDocumentAsync(GuestDocumentDTO dto);
-    public Task<bool> UpdateDocumentAsync(GuestDocumentDTO dto);
-    public Task<bool> DeleteDocumentAsync(GuestDocumentDTO dto);
-    public Task<bool> DeleteDocumentAsync(string docType, string docNum);
-
-    public Task<GuestDocumentDTO?> GetDtoByIdAsync(string docType, string docNum);
-    public Task<IEnumerable<GuestDocumentDTO>> GetDtoListByFilterAsync(GuestDocFilterDTO filter, int limit = 0);
-    public Task<IEnumerable<GuestDocumentDTO>> GetDtoListAsync();
-
-    //TODO: Add Filter
-
-}

src/Somnia.GuestLog/Services/ILocalizerService.cs

@@ -0,0 +1,7 @@
+namespace Somnia.GuestLog.Services;
+
+public interface ILocalizerService
+{
+    public string GetEnumValue<TEnum>(TEnum? enumValue) where TEnum : struct, Enum;
+    public string GetEnumValue<TEnum>(TEnum enumValue) where TEnum : struct, Enum;
+}

src/Somnia.GuestLog/Services/IUserMessageService.cs

@@ -0,0 +1,12 @@
+using Somnia.GuestLog.Enums.UI;
+using IResult = Somnia.GuestLog.Models.DTOs.IResult;
+
+namespace Somnia.GuestLog.Services;
+
+public interface IUserMessageService
+{
+    public void ShowMessage(string text, MessageKind kind, params object[] parameters);
+
+    public void ShowResult(IResult resultDto);
+    public void ShowResultWithMessage(IResult resultDto, string message);
+}

src/Somnia.GuestLog/Services/LocalizerService.cs

@@ -0,0 +1,37 @@
+using Microsoft.Extensions.Localization;
+using Somnia.GuestLog.Resources;
+
+namespace Somnia.GuestLog.Services;
+
+public class LocalizerService(
+    IServiceProvider serviceProvider
+) : ILocalizerService
+{
+    private IStringLocalizer<LanguageLocale> Localizer
+    {
+        get
+        {
+            field ??= serviceProvider.GetRequiredService<IStringLocalizer<LanguageLocale>>();
+            return field;
+        }
+    }
+
+    public string GetEnumValue<TEnum>(TEnum? enumValue) where TEnum : struct, Enum
+    {
+        if (enumValue == null)
+        {
+            return GuestConsts.EmptyField;
+        }
+
+        return GetEnumValue(enumValue.Value);
+    }
+
+    public string GetEnumValue<TEnum>(TEnum enumValue) where TEnum : struct, Enum
+    {
+        string enumName = typeof(TEnum).Name;
+        string? strEnumValue = Enum.GetName(enumValue);
+        string localeKey = $"enum.{enumName}.{strEnumValue}";
+
+        return Localizer[localeKey];
+    }
+}

src/Somnia.GuestLog/Services/SpainCodigoMunicipio/ISpainCodigoMunicipioService.cs

@@ -0,0 +1,6 @@
+namespace Somnia.GuestLog.Services.SpainCodigoMunicipio;
+
+public interface ISpainCodigoMunicipioService
+{
+    public Task<string?> GetCodigoMunicipioAsync(string municipio, string province);
+}

src/Somnia.GuestLog/Services/SpainCodigoMunicipio/SpainCodigoMunicipioCatastroService.cs

@@ -0,0 +1,123 @@
+using System.Xml.Serialization;
+using Microsoft.AspNetCore.WebUtilities;
+
+namespace Somnia.GuestLog.Services.SpainCodigoMunicipio;
+
+public class SpainCodigoMunicipioCatastroService(
+    ILogger<SpainCodigoMunicipioCatastroService> logger,
+    IHttpClientFactory httpFactory
+) : ISpainCodigoMunicipioService
+{
+    private const string Api_Host = "https://ovc.catastro.meh.es";
+    private const string Api_Address = "OVCServWeb/OVCWcfCallejero/COVCCallejero.svc/rest/ObtenerMunicipios";
+    private const string Api_Param_Provincia = "Provincia";
+    private const string Api_Param_Municipio = "Municipio";
+
+
+    //Result Cache.
+    readonly Dictionary<(string provincia, string municipio), string> codigoMunicipioCache = [];
+
+
+    public async Task<string?> GetCodigoMunicipioAsync(string municipio, string province)
+    {
+        var cacheKey = (province.ToUpper(), municipio.ToUpper());
+
+        //Try get from cache.
+        if (codigoMunicipioCache.TryGetValue(cacheKey, out string? cacheCode))
+        {
+            logger.LogInformation("SpainCodigoMunicipioCatastroService - Municipio found in cache for: '{key}'", cacheKey);
+            return cacheCode;
+        }
+
+        try
+        {
+            string uri = GetRequestUri(municipio, province);
+            logger.LogInformation("SpainCodigoMunicipioCatastroService - Getting municipios from API with query: '{addr}'", uri);
+
+            var httpClient = httpFactory.CreateClient();
+            using var rsStream = await httpClient.GetStreamAsync(uri);
+
+            XmlSerializer serializer = new(typeof(CatastroApiResult));
+
+            if (serializer.Deserialize(rsStream) is not CatastroApiResult rs)
+            {
+                logger.LogError("SpainCodigoMunicipioCatastroService - Result can't be deserialized!");
+                return null;
+            }
+
+            if (rs.municipios.Count == 0)
+            {
+                logger.LogWarning("SpainCodigoMunicipioCatastroService - No municipios found for query: '{addr}'", uri);
+                return null;
+            }
+
+            if (rs.municipios.Count > 1)
+            {
+                logger.LogWarning("SpainCodigoMunicipioCatastroService - More than 1 municipio was returned. First one will be used!");
+            }
+
+            CatastroApiResultCodigoIne? codIne = rs.municipios.First().codigoIne;
+            if (codIne == null || codIne.codigoMunicipio == null || codIne.codigoProvincia == null)
+            {
+                logger.LogWarning("SpainCodigoMunicipioCatastroService - Returned Municipio without data!");
+                return null;
+            }
+
+            string finalCode = $"{codIne.codigoProvincia}{codIne.codigoMunicipio}";
+
+            codigoMunicipioCache.Add(cacheKey, finalCode);
+            return finalCode;
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "SpainCodigoMunicipioCatastroService - Error getting codigo municipio from catastro API!");
+            return null;
+        }
+    }
+
+
+    #region Internal Methods
+
+    private static string GetRequestUri(string municipio, string province)
+    {
+        string baseAddress = $"{Api_Host}/{Api_Address}";
+
+        return QueryHelpers.AddQueryString(baseAddress, [
+            new KeyValuePair<string, string?>(Api_Param_Provincia, province),
+            new KeyValuePair<string, string?>(Api_Param_Municipio, municipio),
+        ]);
+    }
+
+    #endregion
+
+    #region API Model
+
+    [XmlRoot(ElementName = "consulta_municipiero", Namespace = "http://www.catastro.meh.es/")]
+    public class CatastroApiResult()
+    {
+        [XmlArray(ElementName = "municipiero")]
+        [XmlArrayItem(ElementName = "muni")]
+        public required List<CatastroApiResultMunicipio> municipios;
+    }
+
+    public class CatastroApiResultMunicipio()
+    {
+        [XmlElement(ElementName = "nm")]
+        public string? municipio;
+
+        [XmlElement(ElementName = "loine")]
+        public CatastroApiResultCodigoIne? codigoIne;
+
+    }
+
+    public class CatastroApiResultCodigoIne
+    {
+        [XmlElement(ElementName = "cp")]
+        public string? codigoProvincia;
+
+        [XmlElement(ElementName = "cm")]
+        public string? codigoMunicipio;
+    }
+
+    #endregion
+}

src/Somnia.GuestLog/Services/StaticDataListService.cs

@@ -20,6 +20,7 @@ public class StaticDataListService(
         new KeyValuePair<string, HashSet<string>>(GuestConsts.DataList_DocumentTypes, _documentTypeSet),
         new KeyValuePair<string, HashSet<string>>(GuestConsts.DataList_GenderOptions, _genderOptionSet),
         new KeyValuePair<string, HashSet<string>>(GuestConsts.DataList_CountryCodes, _countryCodeSet),
+        new KeyValuePair<string, HashSet<string>>(GuestConsts.DataList_PaymentMethods, _paymentMethodSet),
     ]);
 
     public List<string> GetAvailableLists()
@@ -92,6 +93,14 @@ public class StaticDataListService(
         "VIR","VNM","VUT","WLF","WSM","YEM","ZAF","ZMB","ZWE",
     ];
 
+    private static readonly HashSet<string> _paymentMethodSet = [
+        "EFECT",
+        "TARJT",
+        "TRANS",
+        "MOVIL",
+        "OTRO",
+    ];
+
     #endregion
 
 }

src/Somnia.GuestLog/Services/StayExport/IStayExportFormatProvider.cs

@@ -0,0 +1,19 @@
+using Somnia.GuestLog.Enums.Models;
+using Somnia.GuestLog.Models.DTOs;
+
+namespace Somnia.GuestLog.Services.StayExport;
+
+public interface IStayExportFormatProvider
+{
+    public StayExportFormat GetFormat();
+    public string GetFilename(DateTime exportTime);
+
+    /// <summary>
+    /// Export Data with the corresponding format.
+    /// Data is copied to given stream (no other operations are performed to the stream).
+    /// </summary>
+    /// <param name="stayList">List of Stays to export</param>
+    /// <param name="dataStream">Stream to copy exported data.</param>
+    public Task<(StayExportFileResult fileResult, string? exportDetails)> ExportDataAsync(IEnumerable<StayEntryDTO> stayList, Stream dataStream);
+
+}

src/Somnia.GuestLog/Services/StayExport/IStayExportFormatProviderFactory.cs

@@ -0,0 +1,11 @@
+using Somnia.GuestLog.Enums.Models;
+
+namespace Somnia.GuestLog.Services.StayExport;
+
+public interface IStayExportFormatProviderFactory
+{
+    /// <summary>
+    /// Returns the StayExport service implementation given current configuration.
+    /// </summary>
+    public IStayExportFormatProvider GetProvider(StayExportFormat exportFormat);
+}

src/Somnia.GuestLog/Services/StayExport/IStayExportService.cs

@@ -0,0 +1,14 @@
+using Somnia.GuestLog.Enums.Models;
+using Somnia.GuestLog.Models.DTOs;
+
+namespace Somnia.GuestLog.Services.StayExport;
+
+public interface IStayExportService
+{
+    public Task<Result<StayExportFileDTO>> ExportStaysByParamsAsync(StayExportFormat format, StayExportParamsDTO exportParams);
+
+
+    public Task<Result> GetExportedFileAsync(StayExportFileDTO item, Stream dataStream);
+
+    public Task<Result> DeleteExportedFileAsync(StayExportFileDTO item);
+}

src/Somnia.GuestLog/Services/StayExport/StayExportFormatProviderFactory.cs

@@ -0,0 +1,30 @@
+using Microsoft.Extensions.Options;
+using Somnia.GuestLog.Enums.Models;
+using Somnia.GuestLog.Models.Configuration;
+using Somnia.GuestLog.Utils.DI;
+
+namespace Somnia.GuestLog.Services.StayExport;
+
+public class StayExportFormatProviderFactory(
+    IServiceProvider serviceProvider,
+    IOptions<StayExportConfig> config
+) : IStayExportFormatProviderFactory, IFactoryDI
+{
+    public static void RegisterFactoryItems(IServiceCollection services)
+    {
+        services.AddKeyedSingleton<IStayExportFormatProvider, StayExportProviderJson>(StayExportFormat.GuestLogJson);
+        services.AddKeyedSingleton<IStayExportFormatProvider, StayExportProviderSpainParteViajeros>(StayExportFormat.SpainParteViajeros);
+    }
+
+
+    public IStayExportFormatProvider GetProvider(StayExportFormat exportFormat)
+    {
+        if (config.Value.EnableStayExport == false)
+        {
+            throw new InvalidOperationException("StayExport is disabled. Enable and configure it first!");
+        }
+
+        return serviceProvider.GetKeyedService<IStayExportFormatProvider>(exportFormat)
+            ?? throw new InvalidOperationException($"StayExport service not found for ExportFormat: '{exportFormat}'");
+    }
+}

src/Somnia.GuestLog/Services/StayExport/StayExportProviderJson.cs

@@ -0,0 +1,30 @@
+using System.Text.Json;
+using Somnia.GuestLog.Enums.Models;
+using Somnia.GuestLog.Models.DTOs;
+
+namespace Somnia.GuestLog.Services.StayExport;
+
+public class StayExportProviderJson : IStayExportFormatProvider
+{
+    private const string fileExtension = "json";
+
+    public StayExportFormat GetFormat() => StayExportFormat.GuestLogJson;
+    public string GetFilename(DateTime exportTime)
+        => $"{Enum.GetName(GetFormat())}_{exportTime.ToFileTimeUtc()}.{fileExtension}";
+
+
+    public async Task<(StayExportFileResult fileResult, string? exportDetails)> ExportDataAsync(IEnumerable<StayEntryDTO> stayList, Stream dataStream)
+    {
+        if (!stayList.Any())
+        {
+            return (fileResult: StayExportFileResult.NoData, exportDetails: null);
+        }
+
+        // Convert to JSON.
+        await JsonSerializer.SerializeAsync(dataStream, stayList);
+
+        List<string> exportDetails = [.. stayList.Where(s => s.Id != null).Select(s => s.Id?.ToString() ?? "")];
+        string details = JsonSerializer.Serialize(exportDetails);
+        return (fileResult: StayExportFileResult.OK, exportDetails: details);
+    }
+}

src/Somnia.GuestLog/Services/StayExport/StayExportProviderSpainParteViajeros.cs

@@ -0,0 +1,411 @@
+using System.Diagnostics;
+using System.Text.Json;
+using System.Xml.Serialization;
+using FluentValidation;
+using Microsoft.Extensions.Options;
+using Somnia.GuestLog.Enums.Models;
+using Somnia.GuestLog.Models.Configuration;
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Services.SpainCodigoMunicipio;
+
+namespace Somnia.GuestLog.Services.StayExport;
+
+public class StayExportProviderSpainParteViajeros(
+    ILogger<StayExportProviderSpainParteViajeros> logger,
+    ISpainCodigoMunicipioService codigoMunicipioService,
+    IOptions<StayExportSpainParteViajerosConfig> configOptions
+) : IStayExportFormatProvider
+{
+    private const string fileExtension = "xml";
+
+    private const string ExportDetailsResult_Error = "Error";
+    private const string ExportDetailsResult_Ok = "Ok";
+
+    private const string PersonRole = "VI";
+    private const string PersonRelation = "OT";
+
+    private const string PersonTipoDoc_NIF = "NIF";
+    private const string PersonTipoDoc_NIE = "NIE";
+    private const string PersonTipoDoc_PAS = "PAS";
+    private const string PersonTipoDoc_OTRO = "OTRO";
+
+    private const string PersonDireccionPais_ESP = "ESP";
+
+    private const string XmlNamespace_Peticion = "http://www.neg.hospedajes.mir.es/altaParteHospedaje";
+
+    private readonly StayExportSpainParteViajerosConfig config = configOptions.Value;
+
+
+    public StayExportFormat GetFormat() => StayExportFormat.SpainParteViajeros;
+    public string GetFilename(DateTime exportTime)
+        => $"{Enum.GetName(GetFormat())}_{exportTime.ToFileTimeUtc()}.{fileExtension}";
+
+    public async Task<(StayExportFileResult fileResult, string? exportDetails)> ExportDataAsync(IEnumerable<StayEntryDTO> stayList, Stream dataStream)
+    {
+        if (string.IsNullOrEmpty(config.CodigoEstablecimiento))
+        {
+            logger.LogError("StayExportProviderSpainParteViajeros - Config error: CodigoEstablecimiento is not configured!");
+            return (fileResult: StayExportFileResult.ExportError, exportDetails: null);
+        }
+
+        if (!stayList.Any())
+        {
+            return (fileResult: StayExportFileResult.NoData, exportDetails: null);
+        }
+
+        List<StayExportDetails> stayExportDetails = [];
+        ComunicacionValidator comunicacionValidator = new();
+
+        List<Comunicacion> comunicacionsList = [];
+        foreach (StayEntryDTO stay in stayList)
+        {
+            (Comunicacion? comunicacion, string errorMsg) = await GetComunicacionFromStay(stay);
+            if (comunicacion == null)
+            {
+                logger.LogWarning("StayExportProviderSpainParteViajeros - Stay (ID: {id}) can't be exported: Error: {code}", stay.Id, errorMsg);
+                stayExportDetails.Add(new(StayId: stay.Id ?? -1, ExportResult: ExportDetailsResult_Error, Details: errorMsg));
+                continue;
+            }
+
+            var errors = comunicacionValidator.Validate(comunicacion);
+            if (!errors.IsValid)
+            {
+                logger.LogWarning("StayExportProviderSpainParteViajeros - Stay (ID: {id}) is invalid: Errors: {errors}", stay.Id, errors.Errors);
+                stayExportDetails.Add(new(StayId: stay.Id ?? -1, ExportResult: ExportDetailsResult_Error, Details: errors.ToString()));
+                continue;
+            }
+
+            comunicacionsList.Add(comunicacion);
+            logger.LogInformation("StayExportProviderSpainParteViajeros - Stay (ID: {id}) Exported OK", stay.Id);
+            stayExportDetails.Add(new(StayId: stay.Id ?? -1, ExportResult: ExportDetailsResult_Ok, Details: null));
+        }
+
+        Peticion peticion = new()
+        {
+            solicitud = new()
+            {
+                codigoEstablecimiento = config.CodigoEstablecimiento,
+                comunicacion = comunicacionsList,
+            }
+        };
+
+        XmlSerializer serializer = new(typeof(Peticion));
+        serializer.Serialize(dataStream, peticion);
+
+        string details = JsonSerializer.Serialize(stayExportDetails);
+        return (fileResult: StayExportFileResult.OK, exportDetails: details);
+    }
+
+    #region Internal Methods
+
+    private async Task<(Comunicacion? comunicacion, string errorMsg)> GetComunicacionFromStay(StayEntryDTO stay)
+    {
+        Debug.Assert(stay.Id != null
+            && stay.DateIn != null
+            && stay.DateOut != null
+            && stay.GuestDocuments != null
+        );
+
+        //Call Fn to validate Stay.
+
+        Contrato contrato = new()
+        {
+            referencia = stay.Id.Value.ToString(),
+            fechaContrato = stay.DateIn.Value.Date,
+            fechaEntrada = stay.DateIn.Value,
+            fechaSalida = stay.DateOut.Value,
+            internet = config.InternetAvailable,
+            numHabitaciones = stay.RoomCount ?? -1,
+            numPersonas = stay.GuestDocuments.Count,
+            pago = new()
+            {
+                tipoPago = GetTipoPagoFromStay(stay)!
+            }
+        };
+
+        List<Persona> personasList = [];
+        foreach (GuestDocumentDTO doc in stay.GuestDocuments)
+        {
+            Direccion dir = new()
+            {
+                direccion = doc.Address!,
+                codigoPostal = doc.ZipCode!,
+                pais = doc.AddressCountry!,
+            };
+
+            //Get Municipio given current country.
+            if (doc.AddressCountry != PersonDireccionPais_ESP)
+            {
+                List<string?> addressParts = [doc.AddressCity, doc.AddressProvince, doc.AddressState];
+                dir.nombreMunicipio = string.Join(", ", addressParts.Where(p => !string.IsNullOrEmpty(p)));
+            }
+            if (doc.AddressCountry == PersonDireccionPais_ESP)
+            {
+                dir.codigoMunicipio = await GetMunicipioFromGuestAddressAsync(doc);
+                if (dir.codigoMunicipio == null)
+                {
+                    return (
+                        comunicacion: null,
+                        errorMsg: "Can't get codigo municio"
+                    );
+                }
+            }
+
+            Persona persona = new()
+            {
+                rol = PersonRole,
+                nombre = doc.Name!,
+                apellido1 = doc.Surname!,
+                apellido2 = doc.Surname2,
+                tipoDocumento = GetTipoDocumentoFromGuest(doc)!,
+                numeroDocumento = doc.DocumentNum!,
+                soporteDocumento = doc.SupportNum,
+                fechaNacimiento = doc.BirthDate?.Date ?? DateTime.MaxValue,
+                nacionalidad = doc.Nationality!,
+                sexo = GetSexoFromGuest(doc)!,
+                telefono = doc.PhoneNumber,
+                correo = doc.EmailAddress,
+                parentesco = PersonRelation,
+                direccion = dir,
+            };
+            personasList.Add(persona);
+        }
+
+        return (
+            comunicacion: new()
+            {
+                contrato = contrato,
+                persona = personasList
+            },
+            errorMsg: "OK");
+    }
+
+    private static string? GetTipoDocumentoFromGuest(GuestDocumentDTO doc)
+    {
+        return doc.DocumentType switch
+        {
+            GuestConsts.DocumentType_DNI => PersonTipoDoc_NIF,
+            GuestConsts.DocumentType_NIE => PersonTipoDoc_NIE,
+            GuestConsts.DocumentType_PASSPORT => PersonTipoDoc_PAS,
+            null => null,
+            _ => PersonTipoDoc_OTRO
+        };
+    }
+
+    private static string? GetSexoFromGuest(GuestDocumentDTO doc)
+    {
+        return doc.Gender switch
+        {
+            GuestConsts.GenderOptions_MALE => "H",
+            GuestConsts.GenderOptions_FEMALE => "F",
+            null => null,
+            _ => "O"
+        };
+    }
+
+    private static string? GetTipoPagoFromStay(StayEntryDTO stay)
+    {
+        return stay.PaymentMethod;
+    }
+
+    private async Task<string?> GetMunicipioFromGuestAddressAsync(GuestDocumentDTO doc)
+    {
+        if (string.IsNullOrEmpty(doc.AddressCity) || string.IsNullOrEmpty(doc.AddressProvince))
+        {
+            return null;
+        }
+
+        //Get codMunicipio from API.
+        return await codigoMunicipioService.GetCodigoMunicipioAsync(doc.AddressCity, doc.AddressProvince);
+    }
+
+    #endregion
+
+    #region Validator
+
+    private sealed class ComunicacionValidator : AbstractValidator<Comunicacion>
+    {
+        //TODO: Validate values in list for: Pago.tipoPago, Persona.sexo, Persona.tipoDocumento
+
+        public ComunicacionValidator()
+        {
+            RuleFor(comm => comm.contrato)
+                .NotNull()
+                .ChildRules(contrato =>
+                {
+                    contrato.RuleFor(p => p.referencia)
+                        .NotEmpty()
+                        .MaximumLength(50);
+
+                    contrato.RuleFor(p => p.fechaEntrada)
+                        .LessThan(p => p.fechaSalida);
+
+                    contrato.RuleFor(p => p.fechaSalida)
+                        .GreaterThan(p => p.fechaEntrada);
+
+                    contrato.RuleFor(p => p.numHabitaciones)
+                        .GreaterThanOrEqualTo(0);
+
+                    //BLOQUE PAGO
+                    contrato.RuleFor(p => p.pago)
+                        .ChildRules(e =>
+                        {
+                            e.RuleFor(p => p.tipoPago)
+                                .NotEmpty();
+                        });
+                });
+
+            RuleForEach(comm => comm.persona)
+                .ChildRules(person =>
+                {
+                    person.RuleFor(p => p.rol)
+                        .Equal(PersonRole);
+                    person.RuleFor(p => p.nombre)
+                        .NotEmpty()
+                        .MaximumLength(50);
+                    person.RuleFor(p => p.apellido1)
+                        .NotEmpty()
+                        .MaximumLength(50);
+                    person.RuleFor(p => p.apellido2)
+                        .MaximumLength(50);
+                    person.RuleFor(p => p.tipoDocumento)
+                        .NotEmpty()
+                        .MaximumLength(5);
+                    person.RuleFor(p => p.numeroDocumento)
+                        .NotEmpty()
+                        .MaximumLength(15);
+                    person.RuleFor(p => p.soporteDocumento)
+                        .NotEmpty()
+                        .When(p => p.tipoDocumento == PersonTipoDoc_NIF || p.tipoDocumento == PersonTipoDoc_NIE);
+                    person.RuleFor(p => p.fechaNacimiento)
+                        .NotEmpty();
+                    person.RuleFor(p => p.sexo)
+                        .MaximumLength(1);
+                    person.RuleFor(p => p.telefono)
+                        .MaximumLength(20);
+                    person.RuleFor(p => p.correo)
+                        .MaximumLength(250);
+
+                    person.RuleFor(p => p.direccion)
+                        .ChildRules(d =>
+                        {
+                            d.RuleFor(p => p.direccion)
+                                .NotEmpty()
+                                .MaximumLength(100);
+                            d.RuleFor(p => p.codigoMunicipio)
+                                .NotEmpty()
+                                .When(p => p.pais == PersonDireccionPais_ESP)
+                                .MaximumLength(5);
+                            d.RuleFor(p => p.nombreMunicipio)
+                                .NotEmpty()
+                                .When(p => p.pais != PersonDireccionPais_ESP)
+                                .MaximumLength(100);
+                            d.RuleFor(p => p.codigoMunicipio)
+                                .NotEmpty()
+                                .MaximumLength(20);
+                            d.RuleFor(p => p.pais)
+                                .NotEmpty()
+                                .Length(3);
+                        });
+                });
+
+            RuleForEach(comm => comm.persona)
+                .Must(p => !string.IsNullOrEmpty(p.telefono) || !string.IsNullOrEmpty(p.correo))
+                .WithMessage($"It's required to have at least one of the following fields: '{nameof(Persona.telefono)}', '{nameof(Persona.correo)}'");
+        }
+    }
+
+    #endregion
+
+    #region Export Data Classes
+
+    private record StayExportDetails(long StayId, string ExportResult, string? Details);
+
+    [XmlRoot(ElementName = "peticion", Namespace = XmlNamespace_Peticion)]
+    public class Peticion
+    {
+        public required Solicitud solicitud;
+    }
+
+    [XmlRoot(ElementName = "solicitud")]
+    public class Solicitud
+    {
+        public required string codigoEstablecimiento;
+        public required List<Comunicacion> comunicacion;
+    }
+
+    [XmlRoot(ElementName = "comunicacion")]
+    public class Comunicacion
+    {
+        public required Contrato contrato;
+        public required List<Persona> persona;
+    }
+
+    [XmlRoot(ElementName = "contrato")]
+    public class Contrato
+    {
+        public required string referencia;
+
+        [XmlElement(DataType = "date")]
+        public required DateTime fechaContrato;
+
+        [XmlElement(DataType = "dateTime")]
+        public required DateTime fechaEntrada;
+
+        [XmlElement(DataType = "dateTime")]
+        public required DateTime fechaSalida;
+
+        public required int numPersonas;
+        public int? numHabitaciones;
+        public bool? internet;
+
+        //BLOQUE PAGO
+        public required Pago pago;
+    }
+
+    [XmlRoot(ElementName = "persona")]
+    public class Persona
+    {
+        public required string rol;
+        public required string nombre;
+        public required string apellido1;
+        public string? apellido2;
+        public required string tipoDocumento;
+        public required string numeroDocumento;
+        public string? soporteDocumento;
+
+        [XmlElement(DataType = "date")]
+        public required DateTime fechaNacimiento;
+        public required string nacionalidad;
+        public required string sexo;
+
+        public string? telefono;
+        public string? correo;
+        public required string parentesco;
+
+        // BLOQUE DIRECCION
+        public required Direccion direccion;
+    }
+
+    public class Pago
+    {
+        public required string tipoPago;
+
+        // [XmlElement(DataType = "date")]
+        // public required DateTime fechaPago;
+        public string? medioPago;
+        public string? titular;
+        public string? caducidadTarjeta;
+    }
+
+    public class Direccion
+    {
+        public required string direccion;
+        public string? codigoMunicipio;
+        public string? nombreMunicipio;
+        public required string codigoPostal;
+        public required string pais;
+    }
+
+    #endregion
+}

src/Somnia.GuestLog/Services/StayExport/StayExportService.cs

@@ -0,0 +1,247 @@
+using System.Diagnostics;
+using FluentStorage;
+using FluentStorage.Storage;
+using Microsoft.Extensions.Options;
+using Somnia.GuestLog.Enums.Models;
+using Somnia.GuestLog.Enums.Services;
+using Somnia.GuestLog.Models.Configuration;
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Models.QueryConfigs;
+using Somnia.GuestLog.Services.Entity;
+
+namespace Somnia.GuestLog.Services.StayExport;
+
+public class StayExportService(
+    ILogger<StayExportProviderJson> logger,
+    IOptions<StayExportConfig> exportConfig,
+    IStayExportFileEntityService stayExportEntityService,
+    IStayEntryEntityService stayEntityService,
+    IStayExportFormatProviderFactory providerFactory
+) : IStayExportService
+{
+
+    private static readonly StayEntryQueryConfig queryConfig =
+        new(IncludeGuests: true, UseSplitQueries: true, DisableTracking: true);
+    private readonly StayExportConfig config = exportConfig.Value;
+
+
+    public async Task<Result<StayExportFileDTO>> ExportStaysByParamsAsync(StayExportFormat format, StayExportParamsDTO exportParams)
+    {
+        //Get data to export.
+        IEnumerable<StayEntryDTO>? stayList;
+        try
+        {
+            stayList = await GetStaysToExportByParamsAsync(exportParams);
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "JsonStayExportService - ExportStaysByParams: Error retriving stays to export!");
+            return Result<StayExportFileDTO>.Fail(ResultCode.UnknownError);
+        }
+
+        //Create initial StayExportFile
+        DateTime exportTime = DateTime.UtcNow;
+        StayExportFileDTO stayExport = new()
+        {
+            ExportFormat = format,
+            ExportParams = exportParams,
+            ExportTime = exportTime,
+        };
+
+        //Export data.
+        using Stream exportedDataStream = new MemoryStream();
+
+        //Generate data to export.
+        StayExportFileResult exportResult;
+        string? exportFilename = null;
+        try
+        {
+            //Create Format provider and export data to stream.
+            var provider = providerFactory.GetProvider(format);
+            (exportResult, stayExport.ExportDetails) = await provider.ExportDataAsync(stayList, exportedDataStream);
+
+            // "Rewind" stream so it can be read from the begining when uploading.
+            exportedDataStream.Seek(0, SeekOrigin.Begin);
+
+            exportFilename = provider.GetFilename(exportTime);
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "JsonStayExportService - ExportStaysByParams: Error exporting data!");
+            exportResult = StayExportFileResult.ExportError;
+        }
+
+        //If data exported OK, save to file.
+        if (exportResult == StayExportFileResult.OK)
+        {
+            try
+            {
+                Debug.Assert(exportFilename != null);
+
+                string exportPathSubdir = "";
+                if (config.UseSubdirectoryByFormat)
+                {
+                    exportPathSubdir = Enum.GetName(format) ?? "";
+                }
+                string exportPath = Path.Combine(exportPathSubdir, exportFilename);
+
+                //Store data.
+                using IStore exportStore = GetExportStore();
+                await exportStore.SetObject(objectPath: exportPath, dataStream: exportedDataStream);
+
+                //Update path in item.
+                stayExport.ExportedPath = exportPath;
+            }
+            catch (Exception ex)
+            {
+                logger.LogError(ex, "JsonStayExportService - ExportStaysByParams: Error Uploading exported data!");
+                exportResult = StayExportFileResult.UploadError;
+            }
+        }
+
+        //Store StayExport in DB.
+        stayExport.ExportResult = exportResult;
+        Result? createResult = null;
+        try
+        {
+            createResult = await stayExportEntityService.CreateStayExportAsync(stayExport);
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "JsonStayExportService - ExportStaysByParams: Error storing StayExportFile entity to DB: {stayExport}", stayExport);
+        }
+
+        //If everything is OK, return OK.
+        if (createResult != null && createResult.ResultCode == ResultCode.Ok)
+        {
+            return Result<StayExportFileDTO>.Ok(stayExport);
+        }
+
+        //Saving export to DB failed. Delete exported file (if exported)
+        if (!string.IsNullOrEmpty(stayExport.ExportedPath))
+        {
+            try
+            {
+                using IStore exportStore = GetExportStore();
+                await exportStore.DeleteObject(objectPath: stayExport.ExportedPath);
+            }
+            catch (Exception ex)
+            {
+                logger.LogError(ex, "JsonStayExportService - ExportStaysByParams: Error deleting exported file after db saving error: {exportedPath}", stayExport.ExportedPath);
+            }
+        }
+
+        logger.LogError(
+            "JsonStayExportService - ExportStaysByDateIn: Error (code '{code}') storing StayExportFile entity to DB: {stayExport}",
+            createResult?.ResultCode, stayExport);
+        return Result<StayExportFileDTO>.Fail(ResultCode.UnknownError);
+    }
+
+
+    public async Task<Result> GetExportedFileAsync(StayExportFileDTO item, Stream dataStream)
+    {
+        if (string.IsNullOrEmpty(item.ExportedPath))
+        {
+            logger.LogWarning("Trying to get exported file without path!! Exported file can't be loaded!");
+            return Result.Fail(ResultCode.NotFound);
+        }
+
+        try
+        {
+            IStore store = GetExportStore();
+            await store.GetObject(item.ExportedPath, dataStream);
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "Error getting exported file '{id}' from path '{path}'", item.Id, item.ExportedPath);
+            return Result.FailUnknownError();
+        }
+
+        return Result.Ok();
+    }
+
+    public async Task<Result> DeleteExportedFileAsync(StayExportFileDTO item)
+    {
+        //Try to delete existing file.
+        if (!string.IsNullOrEmpty(item.ExportedPath))
+        {
+            bool fileDeletedFromStore = await DeleteExportFileFromStoreAsync(item);
+            if (!fileDeletedFromStore)
+            {
+                return Result.Fail(ResultCode.FileStorageError);
+            }
+        }
+
+        //Delete entry from DB.
+        Result deleteResult = await stayExportEntityService.DeleteStayExportAsync(item);
+        if (!deleteResult.IsSuccess)
+        {
+            return Result.Fail(deleteResult.ResultCode);
+        }
+
+        return Result.Ok();
+    }
+
+
+    #region Internal Methods
+
+    private async Task<IEnumerable<StayEntryDTO>> GetStaysToExportByParamsAsync(StayExportParamsDTO exportParams)
+    {
+        //Todo - Improve type selection (when there are more types).
+        if (exportParams.ExportType == StayExportParamType.PeriodDateIn)
+        {
+            if (exportParams.ExportPeriodStart == null || exportParams.ExportPeriodEnd == null)
+            {
+                throw new InvalidOperationException($"StayExportFile - ExportType {exportParams.ExportType} require date start/end. Null dates found");
+            }
+
+            //Get Stays in period.
+            StayEntryFilterDTO filter = new()
+            {
+                DateInStart = exportParams.ExportPeriodStart,
+                DateInEnd = exportParams.ExportPeriodEnd
+            };
+            return await stayEntityService.GetDtoListByFilterAsync(filter, limit: 0, queryConfig: queryConfig);
+        }
+
+        throw new InvalidOperationException($"StayExportFile - Error getting stays using params: export type invalid: {exportParams.ExportType}");
+    }
+
+    private async Task<bool> DeleteExportFileFromStoreAsync(StayExportFileDTO item)
+    {
+        Debug.Assert(!string.IsNullOrEmpty(item.ExportedPath));
+
+        try
+        {
+            IStore store = GetExportStore();
+            bool objectExist = await store.ObjectExists(item.ExportedPath);
+            if (!objectExist)
+            {
+                logger.LogWarning("StayExportService - File for item {id} not found in store! Skip delete!", item.Id);
+                return true;
+            }
+
+            await store.DeleteObject(item.ExportedPath);
+            logger.LogInformation("StayExportService - File for item {id} deleted from path {path}", item.Id, item.ExportedPath);
+            return true;
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "StayExportService - Error deleting export file of item {id}", item.Id);
+            return false;
+        }
+    }
+
+    private IStore GetExportStore()
+    {
+        string? storageConnString = config.ExportStorageConnectionString;
+        if (string.IsNullOrEmpty(storageConnString))
+        {
+            throw new InvalidOperationException("No Stay Export Storage configured. Stays can't be exported");
+        }
+
+        return StorageFactory.FromConnectionString(storageConnString);
+    }
+
+    #endregion
+}

src/Somnia.GuestLog/Services/UserMessageService.cs

@@ -0,0 +1,78 @@
+using MudBlazor;
+using Somnia.GuestLog.Enums.Services;
+using Somnia.GuestLog.Enums.UI;
+using Somnia.GuestLog.Models.DTOs;
+using IResult = Somnia.GuestLog.Models.DTOs.IResult;
+
+namespace Somnia.GuestLog.Services;
+
+public class UserMessageService(
+    ILocalizerService Localizer,
+    ISnackbar snackbar
+) : IUserMessageService
+{
+    public void ShowMessage(string text, MessageKind kind, params object[] parameters)
+    {
+        string formatedMsg = GetFormatedMessage(text, parameters);
+        ShowSnackbar(formatedMsg, kind);
+    }
+
+
+    public void ShowResult(IResult resultDto)
+    {
+        ShowResultWithMessage(resultDto, message: null);
+    }
+
+    public void ShowResultWithMessage(IResult resultDto, string? message)
+    {
+        string resultMsg = GetMsgForResultCode(resultDto.ResultCode);
+        resultMsg = GetFormatedMessage(resultMsg, resultDto.Context);
+
+        string finalMsg = message is not null ? $"{message.Trim().TrimEnd(':')}: {resultMsg}" : resultMsg;
+
+        //Show success when OK, error for UnknownErrors and warning otherwise.
+        MessageKind kind = resultDto switch
+        {
+            { IsSuccess: true } => MessageKind.Success,
+            { ResultCode: ResultCode.UnknownError } => MessageKind.Error,
+            _ => MessageKind.Warning
+        };
+
+        ShowSnackbar(finalMsg, kind);
+    }
+
+
+    #region Internal Methods
+
+    private void ShowSnackbar(string msg, MessageKind kind)
+    {
+        snackbar.Add(message: msg, severity: GetSnackbarSeveryForMessageKind(kind));
+    }
+
+    private string GetMsgForResultCode(ResultCode resultCode)
+    {
+        return Localizer.GetEnumValue(resultCode);
+    }
+
+    private static string GetFormatedMessage(string template, params object[]? parameters)
+    {
+        if (parameters is null || parameters.Length == 0)
+        {
+            return template;
+        }
+
+        return string.Format(template, parameters);
+    }
+
+    private static MudBlazor.Severity GetSnackbarSeveryForMessageKind(MessageKind kind) => kind switch
+    {
+        MessageKind.Info => MudBlazor.Severity.Info,
+        MessageKind.Warning => MudBlazor.Severity.Warning,
+        MessageKind.Error => MudBlazor.Severity.Error,
+        MessageKind.Success => MudBlazor.Severity.Success,
+        MessageKind.Normal => MudBlazor.Severity.Normal,
+        _ => throw new ArgumentOutOfRangeException(nameof(kind), $"Not expected MessageKind value: {kind}")
+    };
+
+    #endregion
+}

src/Somnia.GuestLog/Somnia.GuestLog.csproj

@@ -8,6 +8,8 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="FluentStorage" />
+    <PackageReference Include="FluentStorage.AWS" />
     <PackageReference Include="FluentValidation" />
     <PackageReference Include="MudBlazor" />
   </ItemGroup>
@@ -24,6 +26,7 @@
     </PackageReference>
     <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" />
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" />
   </ItemGroup>
 

src/Somnia.GuestLog/Utils/CountryCodesUtils.cs

@@ -0,0 +1,282 @@
+namespace Somnia.GuestLog.Utils;
+
+public static class CountryCodesUtils
+{
+    // Returns null when input is invalid/unknown.
+    public static string? Alpha2ToAlpha3(string? alpha2)
+    {
+        if (alpha2 is null) return null;
+
+        // Common normalization: trim + uppercase.
+        // Avoids issues with "us", " US ", etc.
+        var key = alpha2.Trim().ToUpperInvariant();
+
+        if (key.Length != 2) return null;
+
+        return Alpha2ToAlpha3Dict.TryGetValue(key, out var alpha3) ? alpha3 : null;
+    }
+
+    // Throwing for invalid/unknown codes
+    public static string Alpha2ToAlpha3OrThrow(string alpha2)
+    {
+        var result = Alpha2ToAlpha3(alpha2)
+            ?? throw new ArgumentException("Unknown or invalid ISO 3166-1 alpha2 code.", nameof(alpha2));
+        return result;
+    }
+
+    // Build-time constant lookup.
+    // Keys are ISO 3166-1 alpha-2 codes (uppercase).
+    private static readonly Dictionary<string, string> Alpha2ToAlpha3Dict =
+        new(StringComparer.Ordinal)
+        {
+            ["AF"] = "AFG",
+            ["AX"] = "ALA",
+            ["AL"] = "ALB",
+            ["DZ"] = "DZA",
+            ["AS"] = "ASM",
+            ["AD"] = "AND",
+            ["AO"] = "AGO",
+            ["AI"] = "AIA",
+            ["AQ"] = "ATA",
+            ["AG"] = "ATG",
+            ["AR"] = "ARG",
+            ["AM"] = "ARM",
+            ["AW"] = "ABW",
+            ["AU"] = "AUS",
+            ["AT"] = "AUT",
+            ["AZ"] = "AZE",
+            ["BS"] = "BHS",
+            ["BH"] = "BHR",
+            ["BD"] = "BGD",
+            ["BB"] = "BRB",
+            ["BY"] = "BLR",
+            ["BE"] = "BEL",
+            ["BZ"] = "BLZ",
+            ["BJ"] = "BEN",
+            ["BM"] = "BMU",
+            ["BT"] = "BTN",
+            ["BO"] = "BOL",
+            ["BQ"] = "BES",
+            ["BA"] = "BIH",
+            ["BW"] = "BWA",
+            ["BV"] = "BVT",
+            ["BR"] = "BRA",
+            ["IO"] = "IOT",
+            ["BN"] = "BRN",
+            ["BG"] = "BGR",
+            ["BF"] = "BFA",
+            ["BI"] = "BDI",
+            ["CV"] = "CPV",
+            ["KH"] = "KHM",
+            ["CM"] = "CMR",
+            ["CA"] = "CAN",
+            ["KY"] = "CYM",
+            ["CF"] = "CAF",
+            ["TD"] = "TCD",
+            ["CL"] = "CHL",
+            ["CN"] = "CHN",
+            ["CX"] = "CXR",
+            ["CC"] = "CCK",
+            ["CO"] = "COL",
+            ["KM"] = "COM",
+            ["CG"] = "COG",
+            ["CD"] = "COD",
+            ["CK"] = "COK",
+            ["CR"] = "CRI",
+            ["CI"] = "CIV",
+            ["HR"] = "HRV",
+            ["CU"] = "CUB",
+            ["CW"] = "CUW",
+            ["CY"] = "CYP",
+            ["CZ"] = "CZE",
+            ["DK"] = "DNK",
+            ["DJ"] = "DJI",
+            ["DM"] = "DMA",
+            ["DO"] = "DOM",
+            ["EC"] = "ECU",
+            ["EG"] = "EGY",
+            ["SV"] = "SLV",
+            ["GQ"] = "GNQ",
+            ["ER"] = "ERI",
+            ["EE"] = "EST",
+            ["SZ"] = "SWZ",
+            ["ET"] = "ETH",
+            ["FK"] = "FLK",
+            ["FO"] = "FRO",
+            ["FJ"] = "FJI",
+            ["FI"] = "FIN",
+            ["FR"] = "FRA",
+            ["GF"] = "GUF",
+            ["PF"] = "PYF",
+            ["TF"] = "ATF",
+            ["GA"] = "GAB",
+            ["GM"] = "GMB",
+            ["GE"] = "GEO",
+            ["DE"] = "DEU",
+            ["GH"] = "GHA",
+            ["GI"] = "GIB",
+            ["GR"] = "GRC",
+            ["GL"] = "GRL",
+            ["GD"] = "GRD",
+            ["GP"] = "GLP",
+            ["GU"] = "GUM",
+            ["GT"] = "GTM",
+            ["GG"] = "GGY",
+            ["GN"] = "GIN",
+            ["GW"] = "GNB",
+            ["GY"] = "GUY",
+            ["HT"] = "HTI",
+            ["HM"] = "HMD",
+            ["VA"] = "VAT",
+            ["HN"] = "HND",
+            ["HK"] = "HKG",
+            ["HU"] = "HUN",
+            ["IS"] = "ISL",
+            ["IN"] = "IND",
+            ["ID"] = "IDN",
+            ["IR"] = "IRN",
+            ["IQ"] = "IRQ",
+            ["IE"] = "IRL",
+            ["IM"] = "IMN",
+            ["IL"] = "ISR",
+            ["IT"] = "ITA",
+            ["JM"] = "JAM",
+            ["JP"] = "JPN",
+            ["JE"] = "JEY",
+            ["JO"] = "JOR",
+            ["KZ"] = "KAZ",
+            ["KE"] = "KEN",
+            ["KI"] = "KIR",
+            ["KP"] = "PRK",
+            ["KR"] = "KOR",
+            ["KW"] = "KWT",
+            ["KG"] = "KGZ",
+            ["LA"] = "LAO",
+            ["LV"] = "LVA",
+            ["LB"] = "LBN",
+            ["LS"] = "LSO",
+            ["LR"] = "LBR",
+            ["LY"] = "LBY",
+            ["LI"] = "LIE",
+            ["LT"] = "LTU",
+            ["LU"] = "LUX",
+            ["MO"] = "MAC",
+            ["MG"] = "MDG",
+            ["MW"] = "MWI",
+            ["MY"] = "MYS",
+            ["MV"] = "MDV",
+            ["ML"] = "MLI",
+            ["MT"] = "MLT",
+            ["MH"] = "MHL",
+            ["MQ"] = "MTQ",
+            ["MR"] = "MRT",
+            ["MU"] = "MUS",
+            ["YT"] = "MYT",
+            ["MX"] = "MEX",
+            ["FM"] = "FSM",
+            ["MD"] = "MDA",
+            ["MC"] = "MCO",
+            ["MN"] = "MNG",
+            ["ME"] = "MNE",
+            ["MS"] = "MSR",
+            ["MA"] = "MAR",
+            ["MZ"] = "MOZ",
+            ["MM"] = "MMR",
+            ["NA"] = "NAM",
+            ["NR"] = "NRU",
+            ["NP"] = "NPL",
+            ["NL"] = "NLD",
+            ["NC"] = "NCL",
+            ["NZ"] = "NZL",
+            ["NI"] = "NIC",
+            ["NE"] = "NER",
+            ["NG"] = "NGA",
+            ["NU"] = "NIU",
+            ["NF"] = "NFK",
+            ["MK"] = "MKD",
+            ["MP"] = "MNP",
+            ["NO"] = "NOR",
+            ["OM"] = "OMN",
+            ["PK"] = "PAK",
+            ["PW"] = "PLW",
+            ["PS"] = "PSE",
+            ["PA"] = "PAN",
+            ["PG"] = "PNG",
+            ["PY"] = "PRY",
+            ["PE"] = "PER",
+            ["PH"] = "PHL",
+            ["PN"] = "PCN",
+            ["PL"] = "POL",
+            ["PT"] = "PRT",
+            ["PR"] = "PRI",
+            ["QA"] = "QAT",
+            ["RE"] = "REU",
+            ["RO"] = "ROU",
+            ["RU"] = "RUS",
+            ["RW"] = "RWA",
+            ["BL"] = "BLM",
+            ["SH"] = "SHN",
+            ["KN"] = "KNA",
+            ["LC"] = "LCA",
+            ["MF"] = "MAF",
+            ["PM"] = "SPM",
+            ["VC"] = "VCT",
+            ["WS"] = "WSM",
+            ["SM"] = "SMR",
+            ["ST"] = "STP",
+            ["SA"] = "SAU",
+            ["SN"] = "SEN",
+            ["RS"] = "SRB",
+            ["SC"] = "SYC",
+            ["SL"] = "SLE",
+            ["SG"] = "SGP",
+            ["SX"] = "SXM",
+            ["SK"] = "SVK",
+            ["SI"] = "SVN",
+            ["SB"] = "SLB",
+            ["SO"] = "SOM",
+            ["ZA"] = "ZAF",
+            ["GS"] = "SGS",
+            ["SS"] = "SSD",
+            ["ES"] = "ESP",
+            ["LK"] = "LKA",
+            ["SD"] = "SDN",
+            ["SR"] = "SUR",
+            ["SJ"] = "SJM",
+            ["SE"] = "SWE",
+            ["CH"] = "CHE",
+            ["SY"] = "SYR",
+            ["TW"] = "TWN",
+            ["TJ"] = "TJK",
+            ["TZ"] = "TZA",
+            ["TH"] = "THA",
+            ["TL"] = "TLS",
+            ["TG"] = "TGO",
+            ["TK"] = "TKL",
+            ["TO"] = "TON",
+            ["TT"] = "TTO",
+            ["TN"] = "TUN",
+            ["TR"] = "TUR",
+            ["TM"] = "TKM",
+            ["TC"] = "TCA",
+            ["TV"] = "TUV",
+            ["UG"] = "UGA",
+            ["UA"] = "UKR",
+            ["AE"] = "ARE",
+            ["GB"] = "GBR",
+            ["US"] = "USA",
+            ["UM"] = "UMI",
+            ["UY"] = "URY",
+            ["UZ"] = "UZB",
+            ["VU"] = "VUT",
+            ["VE"] = "VEN",
+            ["VN"] = "VNM",
+            ["VG"] = "VGB",
+            ["VI"] = "VIR",
+            ["WF"] = "WLF",
+            ["EH"] = "ESH",
+            ["YE"] = "YEM",
+            ["ZM"] = "ZMB",
+            ["ZW"] = "ZWE",
+        };
+}

src/Somnia.GuestLog/Utils/DI/IFactoryDI.cs

@@ -0,0 +1,15 @@
+namespace Somnia.GuestLog.Utils.DI;
+
+/// <summary>
+/// Interface for Factories that need to register DI services.
+/// <br/><see cref="ServiceCollectionExtensions.AddFactoryDI{TFactory, TFactoryImpl}(IServiceCollection)"/>
+/// </summary>
+public interface IFactoryDI
+{
+    /// <summary>
+    /// Register required services in the ServiceCollection.
+    /// This method is automaticaly call when the factory is register.
+    /// </summary>
+    /// <param name="services"></param>
+    public abstract static void RegisterFactoryItems(IServiceCollection services);
+}

src/Somnia.GuestLog/Utils/QueryExtensions.cs

@@ -8,4 +8,9 @@ public static class QueryExtensions
     {
         return condition ? source.Where(predicate) : source;
     }
+
+    public static IQueryable<T> WithLimit<T>(this IQueryable<T> source, int limit)
+    {
+        return limit > 0 ? source.Take(limit) : source;
+    }
 }

src/Somnia.GuestLog/Utils/ServiceCollectionExtensions.cs

@@ -0,0 +1,24 @@
+using Somnia.GuestLog.Utils.DI;
+
+namespace Somnia.GuestLog.Utils;
+
+public static class ServiceCollectionExtensions
+{
+
+    /// <summary>
+    /// Helper for registering factories using IFactoryDI interface.
+    /// Those factories register the required services directly to the service collection.
+    /// This helper ensures all required methods are called.
+    /// </summary>
+    /// <typeparam name="TFactory">Factory Interface</typeparam>
+    /// <typeparam name="TFactoryImpl">Factory Implementation</typeparam>
+    public static IServiceCollection AddFactoryDI<TFactory, TFactoryImpl>(this IServiceCollection services)
+        where TFactory : class
+        where TFactoryImpl : class, TFactory, IFactoryDI
+    {
+        services.AddSingleton<TFactory, TFactoryImpl>();
+        TFactoryImpl.RegisterFactoryItems(services);
+        return services;
+    }
+
+}

src/Somnia.GuestLog/Validators/GuestDocIdDTOValidator.cs

@@ -8,7 +8,7 @@ namespace Somnia.GuestLog.Validators;
 /// <summary>
 /// Validator for GuestDocumentDTO which contains multiple rules and can be shared with the back end API
 /// </summary>
-public class GuestDocIdDTOValidator : AbstractValidator<GuestDocIdDTO>
+public class GuestDocIdDTOValidator : ValueValidator<GuestDocIdDTO>
 {
     public GuestDocIdDTOValidator(IDataListService dataListService)
     {
@@ -34,11 +34,4 @@ public class GuestDocIdDTOValidator : AbstractValidator<GuestDocIdDTO>
             .WithMessage("Invalid NIE")
             .When(x => x.DocumentType == GuestConsts.DocumentType_NIE);
     }
-
-    public Func<object, string, Task<IEnumerable<string>>> ValidateValue => async (model, propertyName) =>
-    {
-        var result = await ValidateAsync(ValidationContext<GuestDocIdDTO>.CreateWithOptions((GuestDocIdDTO)model, x =>
-            x.IncludeProperties(propertyName)));
-        return result.IsValid ? [] : result.Errors.Select(e => e.ErrorMessage);
-    };
 }

src/Somnia.GuestLog/Validators/GuestDocumentDTOValidator.cs

@@ -8,7 +8,7 @@ namespace Somnia.GuestLog.Validators;
 /// <summary>
 /// Validator for GuestDocumentDTO which contains multiple rules and can be shared with the back end API
 /// </summary>
-public class GuestDocumentDTOValidator : AbstractValidator<GuestDocumentDTO>
+public class GuestDocumentDTOValidator : ValueValidator<GuestDocumentDTO>
 {
     public GuestDocumentDTOValidator(IDataListService dataListService)
     {
@@ -82,11 +82,4 @@ public class GuestDocumentDTOValidator : AbstractValidator<GuestDocumentDTO>
         // RuleForEach(x => x.OrderDetails)
         //     .SetValidator(new OrderDetailsModelFluentValidator());
     }
-
-    public Func<object, string, Task<IEnumerable<string>>> ValidateValue => async (model, propertyName) =>
-    {
-        var result = await ValidateAsync(ValidationContext<GuestDocumentDTO>.CreateWithOptions((GuestDocumentDTO)model, x =>
-            x.IncludeProperties(propertyName)));
-        return result.IsValid ? [] : result.Errors.Select(e => e.ErrorMessage);
-    };
 }

src/Somnia.GuestLog/Validators/StayEntryDTOValidator.cs

@@ -0,0 +1,32 @@
+using FluentValidation;
+using Somnia.GuestLog.Models.DTOs;
+using Somnia.GuestLog.Services;
+
+namespace Somnia.GuestLog.Validators;
+
+public class StayEntryDTOValidator : ValueValidator<StayEntryDTO>
+{
+    public StayEntryDTOValidator(IDataListService dataListService)
+    {
+        RuleFor(e => e.DateIn)
+            .NotEmpty()
+            .LessThanOrEqualTo(DateTime.Today.AddDays(1).AddSeconds(-1));
+
+        RuleFor(e => e.DateOut)
+            .NotEmpty()
+            .GreaterThan(e => e.DateIn);
+
+        RuleFor(e => e.RoomCount)
+            .NotEmpty()
+            .GreaterThan(0);
+
+        RuleFor(e => e.PaymentMethod)
+            .Cascade(CascadeMode.Stop)
+            .NotEmpty()
+            .Must(val => val != null && dataListService.IsValueInList(GuestConsts.DataList_PaymentMethods, val));
+
+        RuleFor(e => e.GuestDocuments)
+            .NotNull()
+            .NotEmpty();
+    }
+}