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

@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;
    }

}