Add routes & navigation.

- Added zustand for global state management.
- New Component - NumberSelector.
- Implement Prices API.

package-lock.json

@@ -27,7 +27,8 @@
         "react-dom": "^18.2.0",
         "react-router-dom": "^6.23.0",
         "swr": "^2.2.5",
-        "tailwind-merge": "^2.3.0"
+        "tailwind-merge": "^2.3.0",
+        "zustand": "^4.5.2"
       },
       "devDependencies": {
         "@types/node": "^20.12.8",
@@ -5044,6 +5045,41 @@
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
       }
+    },
+    "node_modules/zustand": {
+      "version": "4.5.2",
+      "resolved": "https://registry.npmjs.org/zustand/-/zustand-4.5.2.tgz",
+      "integrity": "sha512-2cN1tPkDVkwCy5ickKrI7vijSjPksFRfqS6237NzT0vqSsztTNnQdHw9mmN7uBdk3gceVXU0a+21jFzFzAc9+g==",
+      "dependencies": {
+        "use-sync-external-store": "1.2.0"
+      },
+      "engines": {
+        "node": ">=12.7.0"
+      },
+      "peerDependencies": {
+        "@types/react": ">=16.8",
+        "immer": ">=9.0.6",
+        "react": ">=16.8"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "immer": {
+          "optional": true
+        },
+        "react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/zustand/node_modules/use-sync-external-store": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.2.0.tgz",
+      "integrity": "sha512-eEgnFxGQ1Ife9bzYs6VLi8/4X6CObHMw9Qr9tPY43iKwsPw8xE8+EFsf/2cFZ5S3esXgpWgtSCtLNS41F+sKPA==",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0"
+      }
     }
   }
 }

package.json

@@ -29,7 +29,8 @@
     "react-dom": "^18.2.0",
     "react-router-dom": "^6.23.0",
     "swr": "^2.2.5",
-    "tailwind-merge": "^2.3.0"
+    "tailwind-merge": "^2.3.0",
+    "zustand": "^4.5.2"
   },
   "devDependencies": {
     "@types/node": "^20.12.8",

src/api/api-roomSearch.tsx

@@ -1,6 +1,6 @@
 import { fetcherUnwraperWithFilter } from "./backend";
 import useSWR from 'swr';
-import { AvailabilityFilter, AvailabilityRequest, RoomAvailabity } from "@/model/RoomSearch";
+import { AvailabilityFilter, AvailabilityRequest, FareFilter, FareRequest, RoomAvailabity, RoomPrice } from "@/model/RoomSearch";
 
 export function useAPIRoomAvailability(filter: AvailabilityFilter | null) {
 
@@ -16,3 +16,18 @@ export function useAPIRoomAvailability(filter: AvailabilityFilter | null) {
         isError: error
     }
 }
+
+export function useAPIRoomPrices(filter: FareFilter | null) {
+
+    const request: FareRequest | null = filter ? {
+        filter: filter
+    } : null;
+
+    const { data, isLoading, error } = useSWR(request ? ['/api/search/fares', request] : null, ([url, request]) => fetcherUnwraperWithFilter<RoomPrice[]>(url, request))
+
+    return {
+        roomPriceList: data,
+        isLoading,
+        isError: error
+    }
+}

src/components/Rooms/room-booking.tsx

@@ -1,21 +1,70 @@
 import { useAPIRoomCategoryId } from "@/api/api-roomCategories"
 import { Card, CardContent, CardHeader } from "../ui/card"
-import { useState } from "react";
+import { useMemo, useState } from "react";
 import { Typography } from "../ui/typography";
-import { Button } from "../ui/button";
 import { RoomCategoryPhoto } from "@/model/RoomCategory";
 import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "../ui/table";
 import { Skeleton } from "../ui/skeleton";
+import { useAppStore } from "@/store";
+import { DateRange } from "react-day-picker";
+import { FareFilter } from "@/model/RoomSearch";
+import { useAPIRoomPrices } from "@/api/api-roomSearch";
+import { NumberSelector } from "../ui/number-selector";
+import { NewBookingRoom } from "@/model/Bookings";
 
 function RoomBooking({ roomCategoryId, availableAmount }: { roomCategoryId: number, availableAmount: number }) {
 
-  const [selectedAmount, setSelectedAmount] = useState<number>(0);
+  const [selectedAmount, setSelectedAmount] = useState<Map<number, number>>(new Map());
+
+  const currentDates: DateRange = useAppStore((state) => (state.searchFilter.dateRange));
+  const addNewRoom = useAppStore((state) => (state.addNewBookingRoom));
+
+  function onSelectedAmountUpdate(guestNumber: number, newCount: number, price: number) {
+    console.log("Room " + roomCategoryId + " Guestnumber: " + guestNumber + " Count: " + newCount);
+
+    const newAmountMap = new Map(selectedAmount);
+    newAmountMap.set(guestNumber, newCount);
+    setSelectedAmount(newAmountMap)
+
+    const newRoom: NewBookingRoom = {
+      roomCategory: roomCategoryId,
+      guestNumber: guestNumber,
+      amount: newCount,
+      price: price
+    };
+    addNewRoom(newRoom);
+  }
+
+  const totalSelected = () => {
+    let sum = 0;
+    selectedAmount.forEach((v) => sum += v)
+    return sum;
+  };
+  const canAddMore: boolean = availableAmount > totalSelected();
+
+  //This seems a little bit overkill, but IDK.
+  const fareFilter: FareFilter | null = useMemo(
+    () => {
+      if (currentDates && currentDates.from && currentDates.to) {
+        const filter: FareFilter = {
+          startDate: currentDates.from?.toDateString(),
+          endDate: currentDates.to?.toDateString(),
+          roomCategory: roomCategoryId
+        }
+        return filter;
+      }
+      return null;
+    },
+    [currentDates, roomCategoryId]
+  );
 
   const { roomCategory, isLoading: isLoadingCategory, isError: isErrorCategory } = useAPIRoomCategoryId(roomCategoryId);
+  const { roomPriceList, isLoading: isLoadingPrices, isError: isErrorPrices } = useAPIRoomPrices(fareFilter);
+
 
   //TODOME: Gestionar también los estados al cargar los precios.
-  const isLoading = isLoadingCategory;
-  const isError = isErrorCategory;
+  const isLoading = isLoadingCategory || isLoadingPrices;
+  const isError = isErrorCategory || isErrorPrices;
 
   if (isLoading) {
     return (
@@ -34,6 +83,41 @@ function RoomBooking({ roomCategoryId, availableAmount }: { roomCategoryId: numb
     <img src={mainPhoto.path} alt={mainPhoto.altText} className="rounded-md mx-0 px-0"></img>
   );
 
+  const hasPrices = roomPriceList != null && roomPriceList?.length > 0;
+  let priceTable = null;
+  if (hasPrices) {
+    const tableRows = roomPriceList?.map((el) => {
+      return (
+        <TableRow key={el.guestNumber}>
+          <TableCell>{el.guestNumber}</TableCell>
+          <TableCell>{el.price / 100} €</TableCell>
+          <TableCell>
+            <NumberSelector updateCount={(count) => onSelectedAmountUpdate(el.guestNumber, count, el.price)} addEnabled={canAddMore}></NumberSelector>
+          </TableCell>
+        </TableRow>
+      );
+    });
+
+    priceTable = (
+      <>
+        <Table>
+          <TableHeader>
+            <TableRow>
+              <TableHead>Guest number</TableHead>
+              <TableHead>Price</TableHead>
+              <TableHead>Amount</TableHead>
+            </TableRow>
+          </TableHeader>
+          <TableBody>
+            {isLoadingPrices ? <Skeleton className="w-[80%] h-[100%]" /> : tableRows}
+          </TableBody>
+        </Table>
+        <p>Rooms Available: {availableAmount}</p>
+      </>
+    );
+  }
+
+
   return (
     <Card>
       <CardHeader>
@@ -48,33 +132,10 @@ function RoomBooking({ roomCategoryId, availableAmount }: { roomCategoryId: numb
         </div>
       </CardHeader>
       <CardContent>
-        <Table>
-          <TableHeader>
-            <TableRow>
-              <TableHead>Guest number</TableHead>
-              <TableHead>Price</TableHead>
-              <TableHead>Amount</TableHead>
-            </TableRow>
-          </TableHeader>
-          <TableBody>
-            <TableRow>
-              <TableCell>1</TableCell>
-              <TableCell>25€</TableCell>
-              <TableCell>
-                <div className="flex flex-row">
-                  <Button
-                    onClick={() => setSelectedAmount(selectedAmount - 1)}>-</Button>
-                  <p className="mx-2">{selectedAmount}</p>
-                  <Button
-                    onClick={() => setSelectedAmount(selectedAmount + 1)}>+</Button>
-                </div></TableCell>
-            </TableRow>
-          </TableBody>
-        </Table>
+        {hasPrices ? priceTable : <Typography variant={"largeText"}>No Prices available</Typography>}
         <div>
-          <p>Available: {availableAmount}</p>
-          <p>Selected: {selectedAmount}</p>
         </div>
+        <p>Selected: {totalSelected()}</p>
       </CardContent>
     </Card>
   );

src/components/Search/SearchFilterCard.tsx

@@ -5,20 +5,33 @@ import 'react-day-picker/dist/style.css';
 import { DatePickerWithRange } from "../ui/dateRange-picker";
 import { Button } from "../ui/button";
 import { SearchIcon } from "lucide-react";
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import { SearchFilter } from "@/model/SearchFilter";
 import { DateRange } from "react-day-picker";
 import { useToast } from "../ui/use-toast";
+import { useAppStore } from "@/store";
+import { useLocation } from "react-router-dom";
 
 type funOnSearchClick = (newFilter: SearchFilter) => void;
 
 export function SearchFilterCard({ onSearchClick }: { onSearchClick?: funOnSearchClick }) {
 
-  const { toast } = useToast();
+  //App filter. Updated on btSearchClick.
+  const appSearchFilter = useAppStore((state) => (state.searchFilter));
+  const setAppSearchFilter = useAppStore((state) => (state.setSearchFilter));
 
-  const [searchFilter, setSearchFilter] = useState<SearchFilter>({
-    dateRange: { from: new Date() }
-  })
+  //Local Filter state.
+  const [searchFilter, setSearchFilter] = useState<SearchFilter>(appSearchFilter)
+
+  //On location change, try to load searchFilter from state.
+  //FIXME: Si llegamos sin state, hay que borrar el state global...
+  const location = useLocation();
+  useEffect(() => {
+    setSearchFilter(location.state);
+  }, [location]);
+  
+  
+  const { toast } = useToast();
 
   // Validate and call callback on btSearch click.
   //TODOME: Add data validations and show messages.
@@ -41,6 +54,7 @@ export function SearchFilterCard({ onSearchClick }: { onSearchClick?: funOnSearc
     }
 
     if (onSearchClick) {
+      setAppSearchFilter(searchFilter);
       onSearchClick(searchFilter);
     }
   }

src/components/app-header.tsx

@@ -1,19 +1,28 @@
-import { BookmarkIcon } from "@radix-ui/react-icons"
 import { ModeToggle } from "./mode-toggle"
 import { Button } from "./ui/button"
 import { Card, CardContent } from "./ui/card"
 import { Typography } from "./ui/typography"
+import { Link } from "react-router-dom"
+import { BookAIcon, HomeIcon } from "lucide-react"
 
 function AppHeader() {
 
   return (
     <Card className="flex items-center mx-10 my-4">
       <CardContent className="w-full">
-        <div className="flex justify-around">
-          <Typography variant={"largeText"}>Hostal del Val</Typography>
+        <div className="flex justify-around items-center">
+          <div className="flex flex-row items-center gap-2 relative">
+            <img src="public/SR2.svg" className="w-[64px]"></img>
+            <Typography variant={"largeText"}>Somnia Rooms</Typography>
+            <a href="https://duck.com" className="absolute w-[100%] h-[100%]"></a>
+          </div>
           <Button variant="ghost">
-            <BookmarkIcon/>
-            <Typography variant={"largeText"}>Reservar</Typography>
+            <HomeIcon />
+            <Link to={`home`}>Home</Link>
+          </Button>
+          <Button variant="ghost">
+            <BookAIcon />
+            <Link to={`search`}>Reservar</Link>
           </Button>
           <ModeToggle />
         </div>

src/components/booking/booking-details.tsx

@@ -0,0 +1,89 @@
+import { useAppStore } from "@/store"
+import { Card, CardContent, CardHeader } from "../ui/card"
+import { Typography } from "../ui/typography"
+import { differenceInDays } from "date-fns";
+import { Separator } from "../ui/separator";
+import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "../ui/table";
+import { Button } from "../ui/button";
+
+type OnBookingClickFunction = () => void;
+
+export function BookingDetails({ onBookingConfirm }: { onBookingConfirm?: OnBookingClickFunction }) {
+
+  const bookingData = useAppStore((state) => state.newBookingData);
+
+  const onBtBookingClick = () => {
+    if (onBookingConfirm) {
+      onBookingConfirm();
+    }
+  }
+
+  if (!bookingData || bookingData.rooms.length <= 0) {
+    return (
+      <Card>
+        <CardHeader>
+          <Typography variant={"h2"} as="h2">Your Booking</Typography>
+        </CardHeader>
+        <CardContent>
+          <Typography variant={"h3"}>No rooms added yet</Typography>
+        </CardContent>
+      </Card>
+    );
+  }
+
+  const roomList = bookingData.rooms.map((room) => {
+    return (
+      <TableRow key={room.roomCategory + "_" + room.guestNumber}>
+        <TableCell>{room.roomCategory}</TableCell>
+        <TableCell>{room.guestNumber}</TableCell>
+        <TableCell>{room.amount}</TableCell>
+        <TableCell>{room.price / 100} €</TableCell>
+      </TableRow>
+    );
+  })
+
+
+  const roomTable = (
+    <Table>
+      <TableHeader>
+        <TableRow>
+          <TableHead>Room</TableHead>
+          <TableHead>Guests</TableHead>
+          <TableHead>Quantity</TableHead>
+          <TableHead>Price</TableHead>
+        </TableRow>
+      </TableHeader>
+      <TableBody>
+        {roomList}
+      </TableBody>
+    </Table>
+  );
+
+
+  const totalPrice = bookingData.rooms.reduce((acc, room) => (acc + room.price), 0);
+
+  return (
+    <Card>
+      <CardHeader>
+        <Typography variant={"h2"} as="h2">Your Booking</Typography>
+      </CardHeader>
+      <CardContent>
+        <Typography variant={"h3"}>Your Dates</Typography>
+        <Typography variant={"largeText"}>
+          Arrival: {bookingData.arrivalDate.toLocaleDateString()}  -
+          Departure: {bookingData.departureDate.toLocaleDateString()} <br></br>
+          Number of nights: {differenceInDays(bookingData.departureDate, bookingData.arrivalDate)}
+        </Typography>
+        <Separator className="my-2"></Separator>
+        <Typography variant={"h3"}>Your Rooms</Typography>
+        {roomTable}
+        <Separator className="my-2"></Separator>
+        <Typography variant={"h3"}>Total Price</Typography>
+        <Typography variant={"h3"}>{totalPrice / 100} €</Typography>
+        <Button className="my-2" onClick={onBtBookingClick}>
+          <Typography variant={"largeText"} className="text-primary-foreground">Book it!</Typography>
+        </Button>
+      </CardContent>
+    </Card>
+  )
+}

src/components/ui/number-selector.tsx

@@ -0,0 +1,33 @@
+import { useState } from "react"
+import { Button } from "./button";
+import { Typography } from "./typography";
+
+
+export type UpdateSelectedNumberFunction = (newCount: number) => void;
+
+export function NumberSelector(
+  { updateCount, addEnabled = true, allowNegative = false }: 
+  { updateCount: UpdateSelectedNumberFunction, addEnabled?: boolean, allowNegative?: boolean }) {
+
+  const [count, setCount] = useState<number>(0);
+
+  const counterUpdated = (newAmount: number) => {
+    setCount(newAmount);
+
+    if (updateCount != undefined) {
+      updateCount(newAmount);
+    }
+  }
+
+  const minusDisabled = (!allowNegative && count <= 0)
+
+  return (
+    <div className="flex flex-row items-center gap-2">
+      <Button disabled={minusDisabled}
+        onClick={() => counterUpdated(count - 1)}>-</Button>
+      <Typography variant={"largeText"} className="mx-2">{count}</Typography>
+      <Button disabled={!addEnabled}
+        onClick={() => counterUpdated(count + 1)}>+</Button>
+    </div>
+  )
+}

src/main.tsx

@@ -6,6 +6,7 @@ import Root from './routes/Root';
 import ErrorPage from './error-page';
 import Homepage from './routes/home-page';
 import SearchPage from './routes/search-page';
+import BookPage from './routes/book-page';
 
 const router = createBrowserRouter([
   {
@@ -13,6 +14,10 @@ const router = createBrowserRouter([
     element: <Root />,
     errorElement: <ErrorPage />,
     children: [
+      {
+        path: "/",
+        element: <Homepage />
+      },
       {
         path: "/home",
         element: <Homepage />
@@ -20,11 +25,17 @@ const router = createBrowserRouter([
       {
         path: "/search",
         element: <SearchPage />
+      },
+      {
+        path: "/book",
+        element: <BookPage />
       }
     ]
   },
 ]);
 
+
+
 ReactDOM.createRoot(document.getElementById('root')!).render(
   <React.StrictMode>
     <RouterProvider router={router} />

src/model/Bookings.ts

@@ -0,0 +1,21 @@
+
+export type NewBooking = {
+    arrivalDate: Date,
+    departureDate: Date,
+    customerDetails: NewBookingCustomerDetails,
+    rooms: NewBookingRoom[]
+};
+
+export type NewBookingCustomerDetails = {
+    name: string | null,
+    surname: string | null,
+    email: string | null,
+    phoneNumber: string | null
+};
+
+export type NewBookingRoom = {
+    roomCategory: number,
+    guestNumber: number,
+    amount: number,
+    price: number
+};

src/model/RoomSearch.ts

@@ -5,6 +5,11 @@ export type RoomAvailabity = {
     availability: number
 }
 
+export type RoomPrice = {
+    guestNumber: number,
+    price: number
+}
+
 export type AvailabilityRequest = {
     filter: AvailabilityFilter
 }

src/routes/book-page.tsx

@@ -0,0 +1,39 @@
+import { BookingDetails } from "@/components/booking/booking-details"
+import { Button } from "@/components/ui/button"
+import { Input } from "@/components/ui/input"
+import { Label } from "@/components/ui/label"
+import { Separator } from "@/components/ui/separator"
+import { Typography } from "@/components/ui/typography"
+
+function BookPage() {
+
+
+
+  return (
+    <>
+      <Typography variant={"h1"}>Booking Details</Typography>
+      <Separator className="my-10" />
+      <div>
+        <Typography variant={"h3"}>Personal Details</Typography>
+        <div>
+          <Label>Name</Label>
+          <Input></Input>
+          <Label>Surname</Label>
+          <Input></Input>
+          <Label>Email</Label>
+          <Input></Input>
+          <Label>Phone Number</Label>
+          <Input></Input>
+        </div>
+      </div>
+      <Separator className="my-10" />
+      <BookingDetails></BookingDetails>
+      <Separator className="my-10" />
+      <Button>
+        <Typography variant={"h3"} className="text-primary-foreground">Book it now!</Typography> 
+      </Button>
+    </>
+  )
+}
+
+export default BookPage

src/routes/home-page.tsx

@@ -6,10 +6,17 @@ import { Separator } from "@/components/ui/separator"
 import { Skeleton } from "@/components/ui/skeleton"
 import { Typography } from "@/components/ui/typography"
 import { RoomCategory } from "@/model/RoomCategory"
+import { SearchFilter } from "@/model/SearchFilter"
+import { useNavigate } from "react-router-dom"
 
 function Homepage() {
 
   const { roomCategoryList, isLoading, isError } = useAPIRoomCategories();
+  const navigate = useNavigate();
+
+  const onBtSearchClick = (filter: SearchFilter) => {
+    navigate("/search", {state: filter})
+  }
 
   const roomList = roomCategoryList?.map((element: RoomCategory) => {
     return (
@@ -21,7 +28,7 @@ function Homepage() {
     <>
       <Typography variant={"h1"}>Hostal del Val</Typography>
       <Separator className="my-10" />
-      <SearchFilterCard />
+      <SearchFilterCard onSearchClick={onBtSearchClick}/>
       <Separator className="my-10" />
       <div className="grid grid-cols-2 gap-4">
         {roomList}

src/routes/search-page.tsx

@@ -2,27 +2,56 @@ import { useAPIRoomAvailability } from "@/api/api-roomSearch"
 import RoomBooking from "@/components/Rooms/room-booking"
 import { SearchFilterCard } from "@/components/Search/SearchFilterCard"
 import BackendConnectionStatus from "@/components/backend-conection-status"
+import { BookingDetails } from "@/components/booking/booking-details"
 import { Separator } from "@/components/ui/separator"
 import { Skeleton } from "@/components/ui/skeleton"
 import { Typography } from "@/components/ui/typography"
 import { AvailabilityFilter } from "@/model/RoomSearch"
 import { SearchFilter } from "@/model/SearchFilter"
-import { useState } from "react"
+import { useAppStore } from "@/store"
+import { useMemo, useState } from "react"
+import { useNavigate } from "react-router-dom"
 
 //TODOME: Igual podemos crear un StateMachine conjunta para los siguiente estados de la página: Sin Buscar, Sin disponibilidad, error, cargando.
 function SearchPage() {
 
-  const [availabilityFilter, setAvailabilityFilter] = useState<AvailabilityFilter>();
+  //const [availabilityFilter, setAvailabilityFilter] = useState<AvailabilityFilter>();
+  const searchFilter = useAppStore((state) => (state.searchFilter));
+  const resetBooking = useAppStore((state) => (state.resetBookingState));
+  const navigate = useNavigate();
+
   const [isSearched, setIsSearched] = useState<boolean>(false);
 
   const onBtSearchClick = (newFilter: SearchFilter) => {
-    setAvailabilityFilter({
-      startDate: newFilter.dateRange.from?.toDateString() ?? "",
-      endDate: newFilter.dateRange.to?.toDateString() ?? ""
-    });
-    setIsSearched(true);
+    console.log("onBtSearchClick: ");
+    console.log(newFilter);
+
+    if (newFilter.dateRange && newFilter.dateRange.from && newFilter.dateRange.to) {
+      setIsSearched(true);
+
+      resetBooking(newFilter.dateRange.from, newFilter.dateRange.to);
+    }
   }
 
+  const onBookingContinue = () => {
+    navigate("/book");
+  }
+
+  //This seems a little bit overkill, but IDK.
+  const availabilityFilter: AvailabilityFilter | null = useMemo(
+    () => {
+      if (searchFilter && searchFilter.dateRange && searchFilter.dateRange.from && searchFilter.dateRange.to) {
+        const newAvailabilityFilter: AvailabilityFilter = {
+          startDate: searchFilter.dateRange.from.toDateString(),
+          endDate: searchFilter.dateRange.to.toDateString()
+        };
+        return newAvailabilityFilter;
+      }
+      return null;
+    },
+    [searchFilter]
+  );
+
   const { roomAvailabilityList, isLoading: isLoadingAvailability, isError: isErrorAvailability } = useAPIRoomAvailability(availabilityFilter ?? null);
 
   const isLoading = isLoadingAvailability;
@@ -56,7 +85,7 @@ function SearchPage() {
         {hasRooms ? roomList : (isSearched && noRoomsAvailable)}
       </div>
       <Separator className="my-10" />
-      <RoomBooking key={99} availableAmount={5} roomCategoryId={6} />
+      <BookingDetails onBookingConfirm={onBookingContinue}></BookingDetails>
       <Separator className="my-10" />
       <BackendConnectionStatus isLoading={isLoading} isError={isError} />
     </div>

src/store.ts

@@ -0,0 +1,80 @@
+import { create } from 'zustand'
+import { SearchFilter } from './model/SearchFilter'
+import { NewBooking, NewBookingRoom } from './model/Bookings'
+
+interface AppState {
+    searchFilter: SearchFilter
+    setSearchFilter: (newFilter: SearchFilter) => void
+    newBookingData: NewBooking | null
+    setNewBooking: (newBooking: NewBooking) => void
+    resetBookingState: (arrival: Date, departure: Date) => void
+    addNewBookingRoom: (newRoom: NewBookingRoom) => void
+}
+
+const defaultSearchFilter: SearchFilter = {
+    dateRange: { from: new Date() }
+}
+
+const defaultNewBooking: NewBooking = {
+    arrivalDate: new Date(),
+    departureDate: new Date(),
+    customerDetails: {
+        name: null,
+        surname: null,
+        email: null,
+        phoneNumber: null
+    },
+    rooms: []
+}
+
+function getDefaultBookingData(arrivalDate: Date, departureDate: Date) {
+    return {
+        ...defaultNewBooking,
+        arrivalDate: arrivalDate,
+        departureDate: departureDate
+    }
+}
+
+function addNewBookingRoomToCurrentState(newRoom: NewBookingRoom, currentState: NewBooking | null): NewBooking | null {
+
+    if (currentState == null) {
+        return currentState;
+    }
+
+    //Remove rooms with "same key".
+    const filteredRooms = currentState.rooms.filter((room) => {
+        const diffRoom = room.roomCategory != newRoom.roomCategory;
+        const diffAmount = room.guestNumber != newRoom.guestNumber;
+        if(diffRoom || (!diffRoom && diffAmount)) {
+            return true;
+        }
+        return false;
+    })
+    console.log(filteredRooms);
+
+    if (newRoom.amount > 0) {
+        filteredRooms.push(newRoom);
+    }
+
+
+    const newState: NewBooking = {
+        ...currentState,
+        rooms: filteredRooms ?? []
+    }
+
+    console.log("AddRoomNewState:");
+    console.log(newState);
+
+    return newState;
+}
+
+export const useAppStore = create<AppState>()((set) => ({
+    searchFilter: defaultSearchFilter,
+    setSearchFilter: (newFilter) => set(() => ({ searchFilter: newFilter })),
+    newBookingData: null,
+    setNewBooking: (newBooking) => set(() => ({ newBookingData: newBooking })),
+    resetBookingState: (arrival, departure) =>
+        set(() => ({ newBookingData: getDefaultBookingData(arrival, departure) })),
+    addNewBookingRoom: (newRoom: NewBookingRoom) =>
+        set((state) => ({ newBookingData: addNewBookingRoomToCurrentState(newRoom, state.newBookingData) }))
+}))