add angular ws stuff idk

angular.json

@@ -16,7 +16,9 @@
             "outputPath": "dist/hotel-manager",
             "index": "src/index.html",
             "browser": "src/main.ts",
-            "polyfills": ["zone.js"],
+            "polyfills": [
+              "zone.js"
+            ],
             "tsConfig": "tsconfig.app.json",
             "assets": [
               {
@@ -25,7 +27,10 @@
               },
               "src/assets"
             ],
-            "styles": ["src/styles.css"],
+            "styles": [
+              "@angular/material/prebuilt-themes/azure-blue.css",
+              "src/styles.css"
+            ],
             "scripts": []
           },
           "configurations": {
@@ -70,7 +75,10 @@
         "test": {
           "builder": "@angular-devkit/build-angular:karma",
           "options": {
-            "polyfills": ["zone.js", "zone.js/testing"],
+            "polyfills": [
+              "zone.js",
+              "zone.js/testing"
+            ],
             "tsConfig": "tsconfig.spec.json",
             "assets": [
               {
@@ -78,7 +86,10 @@
                 "input": "public"
               }
             ],
-            "styles": ["src/styles.css"],
+            "styles": [
+              "@angular/material/prebuilt-themes/azure-blue.css",
+              "src/styles.css"
+            ],
             "scripts": []
           }
         }

package.json

@@ -10,23 +10,25 @@
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "^19.0.0",
+    "@angular/animations": "^18.2.3",
-    "@angular/common": "^19.0.0",
+    "@angular/cdk": "^18.2.3",
-    "@angular/compiler": "^19.0.0",
+    "@angular/common": "^18.2.3",
-    "@angular/core": "^19.0.0",
+    "@angular/compiler": "^18.2.3",
-    "@angular/forms": "^19.0.0",
+    "@angular/core": "^18.2.3",
-    "@angular/platform-browser": "^19.0.0",
+    "@angular/forms": "^18.2.3",
-    "@angular/platform-browser-dynamic": "^19.0.0",
+    "@angular/material": "^18.2.3",
-    "@angular/router": "^19.0.0",
+    "@angular/platform-browser": "^18.2.3",
+    "@angular/platform-browser-dynamic": "^18.2.3",
+    "@angular/router": "^18.2.3",
     "angular-in-memory-web-api": "^0.18.0",
     "rxjs": "~7.8.0",
     "tslib": "^2.3.0",
-    "zone.js": "~0.15.0"
+    "zone.js": "~0.14.3"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^19.0.2",
+    "@angular-devkit/build-angular": "^18.2.3",
-    "@angular/cli": "^19.0.2",
+    "@angular/cli": "^18.2.3",
-    "@angular/compiler-cli": "^19.0.0",
+    "@angular/compiler-cli": "^18.2.3",
     "@types/jasmine": "~5.1.0",
     "autoprefixer": "^10.4.20",
     "jasmine-core": "~5.1.0",
@@ -39,4 +41,4 @@
     "tailwindcss": "^3.4.10",
     "typescript": "~5.5.2"
   }
-}
+}

renovate.json

@@ -1,4 +1,6 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": ["local>Renovate/renovate-config"]
+  "extends": [
+    "local>Renovate/renovate-config"
+  ]
 }

src/app/Button/button.component.html

@@ -1,6 +0,0 @@
-<button
-  type="button"
-  class="px-6 py-2 bg-blue-500 text-white font-semibold rounded-lg shadow-md hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-400 focus:ring-opacity-75"
->
-  {{ text }}
-</button>

src/app/Button/button.component.ts

@@ -1,10 +0,0 @@
-import { Component } from '@angular/core';
-
-@Component({
-  selector: 'app-button',
-  standalone: true,
-  templateUrl: './button.component.html',
-})
-export class ButtonComponent {
-  public text = 'Test';
-}

src/app/Child/child.component.html

@@ -1,12 +0,0 @@
-<h1 class="text-2xl font-bold mb-4">Child</h1>
-<p class="text-lg mb-2">Balance: {{ balance }}</p>
-<p [class.hidden]="!isBroke" class="text-red-500 mb-4">
-  I'm broke. Now I'm about as poor as Jan-Marlon.
-</p>
-<button
-  type="button"
-  (click)="takeMoney()"
-  class="px-6 py-2 bg-blue-500 text-white font-semibold rounded-lg shadow-md hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-400 focus:ring-opacity-75"
->
-  Take Money
-</button>

src/app/Child/child.component.ts

@@ -1,25 +0,0 @@
-import { Component, Input, Output, EventEmitter } from '@angular/core';
-
-@Component({
-  selector: 'app-child',
-  standalone: true,
-  templateUrl: './child.component.html',
-})
-export class ChildComponent {
-  @Input() public balance: number = 0;
-  @Output() balanceChange = new EventEmitter<number>();
-
-  public isBroke = false;
-
-  public takeMoney() {
-    if (this.balance <= 0) {
-      this.isBroke = true;
-    } else {
-      this.balance -= 50;
-      if (this.balance == 0) {
-        this.isBroke = true;
-      }
-      this.balanceChange.emit(this.balance);
-    }
-  }
-}

src/app/HotelItem/HotelItem.component.html

@@ -1,37 +0,0 @@
-<p class="text-2xl font-bold text-gray-800 mb-2">Name: {{ hotel.hotelName }}</p>
-<p class="text-base text-gray-600 mb-4">Description: {{ hotel.description }}</p>
-<p class="text-lg font-medium text-green-600 mb-4">
-  Price:
-  {{
-    hotel.price
-      | currency
-        : getCurrencyCode(selectedLanguage)
-        : "symbol"
-        : "2.2-2"
-        : selectedLanguage
-  }}
-</p>
-<select
-  [ngModel]="selectedLanguage"
-  (ngModelChange)="languageChange($event)"
-  class="input-field block w-full p-2 border border-gray-300 rounded-md mb-4 focus:border-blue-500 focus:ring focus:ring-blue-200"
->
-  <option
-    *ngFor="let lang of langs"
-    [value]="lang.code"
-    [selected]="lang.lang == 'de'"
-  >
-    {{ lang.lang }}
-  </option>
-</select>
-<img
-  src="{{ hotel.imageUrl }}"
-  alt="Hotel"
-  class="w-full rounded-full h-auto animate-shake shadow-lg mb-4"
-/>
-<a
-  *ngIf="!isDetail"
-  routerLink="/hotels/{{ hotel.id }}"
-  class="submit-button text-blue-600 hover:text-blue-800 hover:underline mb-4 block"
-  >Details</a
->

src/app/HotelItem/HotelItem.component.ts

@@ -1,63 +0,0 @@
-import { Component, Injectable, Input } from '@angular/core';
-import { ChildComponent } from '../Child/child.component';
-import { Hotel } from './hotel';
-import { CurrencyPipe, NgFor, NgIf } from '@angular/common';
-import { FormsModule } from '@angular/forms';
-import { StarRatingComponent } from '../star-rating/star-rating.component';
-import { HttpClient } from '@angular/common/http';
-import { RouterLink } from '@angular/router';
-
-@Component({
-  selector: 'app-hotel-item',
-  standalone: true,
-  templateUrl: './HotelItem.component.html',
-  imports: [
-    ChildComponent,
-    CurrencyPipe,
-    FormsModule,
-    StarRatingComponent,
-    NgIf,
-    RouterLink,
-    NgFor,
-  ],
-})
-export class HotelItem {
-  @Input() public hotel!: Hotel;
-  public selectedLanguage?: string;
-
-  @Input() public isDetail: boolean = false;
-
-  public languageChange(lang: string) {
-    this.selectedLanguage = lang;
-    console.log(this.selectedLanguage);
-  }
-
-  public getCurrencyCode(langCode: string | undefined): string {
-    if (!langCode) return '';
-
-    for (let language of this.langs) {
-      if (language.code === langCode) {
-        return language.currency;
-      }
-    }
-    return '';
-  }
-
-  public langs = [
-    {
-      lang: 'en',
-      code: 'en-US',
-      currency: 'USD',
-    },
-    {
-      lang: 'cn',
-      code: 'cn-CN',
-      currency: 'CNY',
-    },
-    {
-      lang: 'de',
-      code: 'de-DE',
-      currency: 'EUR',
-    },
-  ];
-}

src/app/Parent/parent.component.html

@@ -1,8 +0,0 @@
-<div class="m-3">
-  <h1>Parent</h1>
-  <p>Kontostand: {{ balance }}</p>
-  <button type="button" class="button" (click)="addFifty()">Add Money</button>
-
-  <app-child [(balance)]="balance"></app-child>
-  <app-child [(balance)]="balance"></app-child>
-</div>

src/app/Parent/parent.component.ts

@@ -1,16 +0,0 @@
-import { Component } from '@angular/core';
-import { ChildComponent } from '../Child/child.component';
-
-@Component({
-  selector: 'app-parent',
-  standalone: true,
-  templateUrl: './parent.component.html',
-  imports: [ChildComponent],
-})
-export class ParentComponent {
-  public balance = 1000;
-
-  public addFifty() {
-    this.balance += 50;
-  }
-}

src/app/Parent/services/hotel.service.ts

@@ -1,47 +0,0 @@
-import { Injectable } from '@angular/core';
-import { Hotel } from '../../HotelItem/hotel';
-import { from, Observable } from 'rxjs';
-
-@Injectable()
-export class HotelService {
-  public getHotels(): Observable<Hotel> {
-    return from([
-      {
-        id: 1,
-        hotelName: 'Buea süßes Leben',
-        description: 'Schöne Aussicht am Meer',
-        price: 230.5,
-        imageUrl: 'assets/img/1.jpg',
-        rating: 3.5,
-        tags: ['test'],
-      },
-      {
-        id: 2,
-        hotelName: 'Marrakesch',
-        description: 'Genießen Sie den Blick auf die Berge',
-        price: 145.5,
-        imageUrl: 'assets/img/2.jpg',
-        rating: 5,
-        tags: ['test'],
-      },
-      {
-        id: 3,
-        hotelName: 'Abuja neuer Palast',
-        description: 'Kompletter Aufenthalt mit Autoservice',
-        price: 120.12,
-        imageUrl: 'assets/img/3.jpg',
-        rating: 4,
-        tags: ['test'],
-      },
-      {
-        id: 4,
-        hotelName: 'Kapstadt Stadt',
-        description: 'Wunderschönes Ambiente für Ihren Aufenthalt',
-        price: 135.12,
-        imageUrl: 'assets/img/4.jpg',
-        rating: 2.5,
-        tags: ['test'],
-      },
-    ]);
-  }
-}

src/app/Search/search.component.html

@@ -1,6 +1,2 @@
-<input
+<label for="search">Search</label>
-  [(ngModel)]="input"
+<input [(ngModel)]="input" (ngModelChange)="update($event)" id="search" class="border border-gray-300 rounded-md p-2 w-full focus:border-blue-500 focus:ring focus:ring-blue-200" type="search">
-  (ngModelChange)="update($event)"
-  class="border border-gray-300 rounded-md p-2 w-full focus:border-blue-500 focus:ring focus:ring-blue-200"
-  type="search"
-/>

src/app/Search/search.component.ts

@@ -1,8 +1,6 @@
-import { CommonModule } from '@angular/common';
+import { Component, Input, Output } from "@angular/core";
-import { Component, NgModule } from '@angular/core';
+import { FormsModule } from "@angular/forms";
-import { FormsModule, NgForm, NgModel } from '@angular/forms';
+import { EventEmitter } from "@angular/core";
-import { Input, Output } from '@angular/core';
-import { EventEmitter } from '@angular/core';
 
 @Component({
   selector: 'app-search',
@@ -11,7 +9,7 @@ import { EventEmitter } from '@angular/core';
   imports: [FormsModule],
 })
 export class SearchComponent {
-  @Input() public input: string = '';
+  @Input() public input: string = "";
   @Output() inputChange = new EventEmitter<string>();
 
   public update(e: string) {

src/app/api/api.ts

@@ -1,6 +1,6 @@
 import { InMemoryDbService } from 'angular-in-memory-web-api';
 
-import { Hotel } from '../HotelItem/hotel';
+import { Hotel } from '../hotel-item/hotel';
 
 /**
  * Initial data for in memory web api
@@ -10,6 +10,7 @@ import { Hotel } from '../HotelItem/hotel';
  * @implements {InMemoryDbService}
  */
 export class HotelData implements InMemoryDbService {
+
   createDb(): Record<string, Hotel[]> {
     const hotels: Hotel[] = [
       {
@@ -19,43 +20,39 @@ export class HotelData implements InMemoryDbService {
         price: 230.5,
         imageUrl: 'assets/img/1.jpg',
         rating: 3.5,
-        tags: ['nouveau'],
+        tags: ['nouveau']
-      },
+      }, {
-      {
         id: 2,
         hotelName: 'Marakech',
         description: 'Profitez de la vue sur les montagnes',
         price: 145.5,
         imageUrl: 'assets/img/2.jpg',
         rating: 5,
-        tags: ['nouveau'],
+        tags: ['nouveau']
-      },
+      }, {
-      {
         id: 3,
         hotelName: 'Abudja new look palace',
         description: 'Séjour complet avec service de voitures',
         price: 120.12,
         imageUrl: 'assets/img/3.jpg',
         rating: 4,
-        tags: ['nouveau'],
+        tags: ['nouveau']
-      },
+      }, {
-      {
         id: 4,
         hotelName: 'Cape town city',
         description: 'Magnifique cadre pour votre séjour',
         price: 135.12,
         imageUrl: 'assets/img/4.jpg',
         rating: 2.5,
-        tags: ['nouveau'],
+        tags: ['nouveau']
-      },
+      }
     ];
 
     return { hotels };
   }
 
   genId(hotels: Hotel[]): number {
-    return hotels.length > 0
+    return hotels.length > 0 ? Math.max(...hotels.map(hotel => hotel.id)) + 1 : 1;
-      ? Math.max(...hotels.map((hotel) => hotel.id)) + 1
-      : 1;
   }
 }
+

src/app/app.component.html

@@ -1,5 +1 @@
-<router-outlet></router-outlet>
+<router-outlet></router-outlet>
-<!-- <p>ID: {{response.id}}</p> -->
-<!-- <p>userId: {{response.userId}}</p> -->
-<!-- <p>title: {{response.title}}</p> -->
-<!-- <p>completed: {{response.completed}}</p> -->

src/app/app.component.spec.ts

@@ -24,8 +24,6 @@ describe('AppComponent', () => {
     const fixture = TestBed.createComponent(AppComponent);
     fixture.detectChanges();
     const compiled = fixture.nativeElement as HTMLElement;
-    expect(compiled.querySelector('h1')?.textContent).toContain(
+    expect(compiled.querySelector('h1')?.textContent).toContain('Hello, hotel-manager');
-      'Hello, hotel-manager',
-    );
   });
 });

src/app/app.component.ts

@@ -1,38 +1,16 @@
 import { Component, Injectable } from '@angular/core';
-import { HotelItem } from './HotelItem/HotelItem.component';
+import { HotelService } from './service/hotel.service';
-import { SearchComponent } from './Search/search.component';
-import {
-  AsyncPipe,
-  NgFor,
-  NgForOf,
-  NgIf,
-  UpperCasePipe,
-} from '@angular/common';
-import { TextPipe } from '../text.pipe';
-import { HotelService } from './Parent/services/hotel.service';
-import { inject } from '@angular/core';
-import { filter, from, last, map, Observable, scan } from 'rxjs';
-import { HttpClient } from '@angular/common/http';
-import { Hotel } from './HotelItem/hotel';
 import { RouterOutlet } from '@angular/router';
 
-@Injectable({ providedIn: 'root' })
+@Injectable({providedIn: "root"})
 @Component({
   selector: 'app-root',
   standalone: true,
-  imports: [
+  imports: [RouterOutlet],
-    RouterOutlet,
-    NgFor,
-    NgForOf,
-    NgIf,
-    HotelItem,
-    SearchComponent,
-    UpperCasePipe,
-    TextPipe,
-    AsyncPipe,
-  ],
   templateUrl: './app.component.html',
   providers: [HotelService],
-  styleUrl: './app.component.css',
+  styleUrl: './app.component.css'
 })
-export class AppComponent {}
+export class AppComponent {
+}
+

src/app/app.config.ts

@@ -1,8 +1,4 @@
-import {
+import { ApplicationConfig, importProvidersFrom, provideZoneChangeDetection } from '@angular/core';
-  ApplicationConfig,
-  importProvidersFrom,
-  provideZoneChangeDetection,
-} from '@angular/core';
 import { provideRouter } from '@angular/router';
 import localeDe from '@angular/common/locales/de';
 import localeCn from '@angular/common/locales/zh-Hans';
@@ -12,6 +8,7 @@ import { registerLocaleData } from '@angular/common';
 import { provideHttpClient } from '@angular/common/http';
 import { InMemoryWebApiModule } from 'angular-in-memory-web-api';
 import { HotelData } from './api/api';
+import { provideAnimationsAsync } from '@angular/platform-browser/animations/async';
 
 registerLocaleData(localeDe, 'de-DE');
 registerLocaleData(localeCn, 'cn-CN');
@@ -20,6 +17,5 @@ export const appConfig: ApplicationConfig = {
     provideZoneChangeDetection({ eventCoalescing: true }),
     provideRouter(routes),
     provideHttpClient(),
-    importProvidersFrom(InMemoryWebApiModule.forRoot(HotelData)),
+    importProvidersFrom(InMemoryWebApiModule.forRoot(HotelData)), provideAnimationsAsync()]
-  ],
 };

src/app/app.routes.ts

@@ -1,26 +1,27 @@
 import { Routes } from '@angular/router';
+import { HotelDetailsComponent } from './hotel-details/hotel-details.component';
 import { HotelListComponent } from './hotel-list/hotel-list.component';
-import { TestComponent } from './test/test.component';
+import { HotelFormComponent } from './hotel-form/hotel-form.component';
-import { NewHotelComponent } from './new-hotel/new-hotel.component';
+import { formGuard } from './form.guard';
+import { NotFoundComponent } from './not-found/not-found.component';
 
 export const routes: Routes = [
   {
-    path: '',
+    path: "",
     component: HotelListComponent,
   },
   {
-    path: 'hotels/:id',
+    path: "hotels/:id",
-    loadComponent: () =>
+    component: HotelDetailsComponent,
-      import('./hotel-details/hotel-details.component').then(
+    canDeactivate: [formGuard],
-        (c) => c.HotelDetailsComponent,
-      ),
   },
   {
-    path: 'testing',
+    path: "create-hotel",
-    component: TestComponent,
+    component: HotelFormComponent,
+    canDeactivate: [formGuard],
   },
   {
-    path: 'new',
+    path: "**",
-    component: NewHotelComponent,
+    component: NotFoundComponent,
   },
 ];

src/app/crossValidator.service.ts

@@ -1,36 +0,0 @@
-import {
-  AbstractControl,
-  FormGroup,
-  ValidationErrors,
-  ValidatorFn,
-} from '@angular/forms';
-
-export class CrossValidator {
-  public crossValidate() {
-    return (control: AbstractControl): ValidationErrors | null => {
-      if (!(control instanceof FormGroup)) {
-        return null;
-      }
-
-      const contactType = control.get('contactType')?.value;
-
-      if (contactType == ('None' || null)) return null;
-
-      let error = null;
-      if (contactType == 'Email') {
-        error =
-          control.get('email')?.value != control.get('emailConfirmation')?.value
-            ? { mismatchEmail: true }
-            : null;
-      } else {
-        error =
-          control.get('phone')?.value != control.get('phoneConfirmation')?.value
-            ? { mismatchPhone: true }
-            : null;
-      }
-
-      console.log('Error: ', error);
-      return error;
-    };
-  }
-}

src/app/form.guard.spec.ts

@@ -0,0 +1,17 @@
+import { TestBed } from '@angular/core/testing';
+import { CanDeactivateFn } from '@angular/router';
+
+import { formGuard } from './form.guard';
+
+describe('formGuard', () => {
+  const executeGuard: CanDeactivateFn = (...guardParameters) => 
+      TestBed.runInInjectionContext(() => formGuard(...guardParameters));
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+  });
+
+  it('should be created', () => {
+    expect(executeGuard).toBeTruthy();
+  });
+});

src/app/form.guard.ts

@@ -0,0 +1,15 @@
+import { CanDeactivateFn } from '@angular/router';
+import { HotelFormComponent } from './hotel-form/hotel-form.component';
+import { HotelDetailsComponent } from './hotel-details/hotel-details.component';
+
+export const formGuard: CanDeactivateFn<HotelFormComponent | HotelDetailsComponent> = (component: HotelFormComponent | HotelDetailsComponent, currentRoute, currentState, nextState) => {
+  const hasUnsavedChanges = 
+    (component instanceof HotelFormComponent && component.form?.dirty) ||
+    (component instanceof HotelDetailsComponent && component.hotelForm?.form?.dirty);
+
+  if (hasUnsavedChanges) {
+    return confirm('You have unsaved changes. Do you really want to leave?');
+  }
+
+  return true;
+};

src/app/hotel-details/hotel-details.component.html

@@ -1,5 +1,5 @@
-@if (hotel) {
+<div class="container p-4 mx-auto max-w-4xl">
-  <app-hotel-item [hotel]="hotel" [isDetail]="true"></app-hotel-item>
+  <div *ngIf="hotel">
-  <app-hotel-form [hotel]="hotel"></app-hotel-form>
+    <app-hotel-form [hotel]="hotel" #hotelForm></app-hotel-form>
-  <button class="delete-button" (click)="delete()">😠 DELETE</button>
+  </div>
-}
+</div>

src/app/hotel-details/hotel-details.component.spec.ts

@@ -8,8 +8,9 @@ describe('HotelDetailsComponent', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [HotelDetailsComponent],
+      imports: [HotelDetailsComponent]
-    }).compileComponents();
+    })
+    .compileComponents();
 
     fixture = TestBed.createComponent(HotelDetailsComponent);
     component = fixture.componentInstance;

src/app/hotel-details/hotel-details.component.ts

@@ -1,61 +1,39 @@
 import { HttpClient } from '@angular/common/http';
-import { Component, OnInit } from '@angular/core';
+import { Component, OnInit, ViewChild } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
-import { Hotel } from '../HotelItem/hotel';
+import { Hotel } from '../hotel-item/hotel';
-import { CurrencyPipe, NgFor, NgForOf, NgIf } from '@angular/common';
+import { NgIf } from '@angular/common';
-import { StarRatingComponent } from '../star-rating/star-rating.component';
-import { HotelItem } from '../HotelItem/HotelItem.component';
 import { catchError, EMPTY } from 'rxjs';
-import { HotelFormComponent } from '../hotel-form/hotel-form.component';
+import { HotelFormComponent } from "../hotel-form/hotel-form.component";
 
 @Component({
   selector: 'app-hotel-details',
   standalone: true,
-  imports: [
+  imports: [HotelFormComponent, NgIf],
-    CurrencyPipe,
-    StarRatingComponent,
-    HotelItem,
-    HotelFormComponent,
-    NgIf,
-    NgForOf,
-  ],
   templateUrl: './hotel-details.component.html',
-  styleUrl: './hotel-details.component.css',
+  styleUrl: './hotel-details.component.css'
 })
 export class HotelDetailsComponent implements OnInit {
   public hotel: any;
 
-  constructor(
+  @ViewChild('hotelForm', { static: false })
-    private route: ActivatedRoute,
+  public hotelForm!: HotelFormComponent;
-    private http: HttpClient,
-    private router: Router,
-  ) {}
 
-  delete(): void {
+  constructor(private route: ActivatedRoute, private http: HttpClient, private router: Router) { }
-    if (confirm('Are u sure u want to delete this hotel')) {
-      this.http
-        .delete<Hotel>('/api/hotels/' + this.route.snapshot.paramMap.get('id'))
-        .subscribe();
-      this.router.navigate(['/']);
-    }
-  }
 
   ngOnInit(): void {
     const routeParams = this.route.snapshot.paramMap;
-    const hotelId = routeParams.get('id');
+    const hotelId = routeParams.get("id");
 
-    this.http
+    this.http.get<Hotel>("api/hotels/" + hotelId).pipe(
-      .get<Hotel>('api/hotels/' + hotelId)
+      catchError(() => {
-      .pipe(
+        alert("Not Found");
-        catchError(() => {
+        this.router.navigate(["/"]);
-          alert('Not Found');
-          this.router.navigate(['/']);
 
-          return EMPTY;
+        return EMPTY;
-        }),
+      })
-      )
+    ).subscribe(res => {
-      .subscribe((res) => {
+      this.hotel = res;
-        this.hotel = res;
+    })
-      });
   }
 }

src/app/hotel-form/hotel-form.component.html

@@ -1,47 +1,70 @@
-<p>hotel-form works!</p>
+<form class="space-y-4 max-w-md mx-auto mt-4" [formGroup]="form">
-<h1>{{ errorMsg }}</h1>
+  <ng-container *ngFor="let field of ['name', 'description', 'price', 'rating']">
-<form [formGroup]="hotelForm">
+    <div class="form-group">
-  <label for="name">Name</label>
+      <label [for]="'hotel' + field" class="block text-sm font-medium text-gray-700">
-  <div class="text-red-500 text-5xl font-bold" *ngIf="errorMessages['name']">
+        Hotel {{field.charAt(0).toUpperCase() + field.slice(1)}}
-    {{ errorMessages["name"] }}
+      </label>
+      <input [type]="field === 'price' || field === 'rating' ? 'number' : 'text'" [formControlName]="field"
+        class="form-control mt-1 block w-full p-2 border rounded-md shadow-sm"
+        [ngClass]="{
+          'border-red-500': errorMessage.includes(field),
+          'border-gray-300': !errorMessage.includes(field),
+          'focus:border-red-500': errorMessage.includes(field),
+          'focus:border-blue-500': !errorMessage.includes(field),
+          'focus:ring-red-200': errorMessage.includes(field),
+          'focus:ring-blue-200': !errorMessage.includes(field)
+        }"
+        [id]="'hotel' + field" [placeholder]="'Enter hotel ' + field">
+      <div *ngIf="errorMessage?.includes(field)" class="text-red-500 text-sm mt-1">
+        {{errorMessage}}
+      </div>
+    </div>
+  </ng-container>
+
+  <div class="form-group">
+    <label for="hotelTags" class="block text-sm font-medium text-gray-700">Hotel Tags</label>
+    <div formArrayName="tags">
+      <div *ngFor="let tag of tags.controls; let i=index" class="flex items-center space-x-2">
+        <input type="text" [formControlName]="i"
+          class="form-control mt-1 w-full p-2 border rounded-md shadow-sm"
+          [ngClass]="{
+            'border-red-500': errorMessage.includes('tags'),
+            'border-gray-300': !errorMessage.includes('tags'),
+            'focus:border-red-500': errorMessage.includes('tags'),
+            'focus:border-blue-500': !errorMessage.includes('tags'),
+            'focus:ring-red-200': errorMessage.includes('tags'),
+            'focus:ring-blue-200': !errorMessage.includes('tags')
+          }"
+          [id]="'hotelTag' + i" placeholder="Enter hotel tag">
+        <button mat-icon-button (click)="tags.removeAt(i)" class="mt-1">
+          <mat-icon class="text-red-500">delete</mat-icon>
+        </button>
+      </div>
+      <button type="button" mat-button (click)="addTag()" class="mt-2">Add Tag</button>
+    </div>
+    <div *ngIf="errorMessage.includes('tags')" class="text-red-500 text-sm mt-1">
+      {{errorMessage}}
+    </div>
   </div>
-  <input
+
-    type="text"
+  <div class="flex justify-between">
-    class="border-red-500 text-3xl border-3 rounded-full bg-gray-500 font-bold p-3 m-3 border-8"
+    <div class="flex space-x-1">
-    id="name"
+      <button type="submit" mat-flat-button (click)="submit()">Submit</button>
-    formControlName="name"
+      <button type="button" mat-stroked-button routerLink="/">Cancel</button>
-  />
+    </div>
-  <label for="description">Description</label>
+    <button mat-stroked-button color="warn" aria-label="Delete hotel" *ngIf="hotel" (click)="showDeleteConfirmation = true">
-  <div class="text-red" *ngIf="errorMessages['description']">
+      Remove
-    {{ errorMessages["description"] }}
+    </button>
+
+    <div *ngIf="showDeleteConfirmation" class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
+      <div class="bg-white p-6 rounded-lg shadow-lg max-w-sm w-full">
+        <h2 class="text-xl font-bold mb-4">Confirm Deletion</h2>
+        <p class="mb-6">Are you sure you want to delete this hotel?</p>
+        <div class="flex justify-end space-x-2">
+          <button mat-stroked-button (click)="showDeleteConfirmation = false">Cancel</button>
+          <button mat-flat-button color="warn" (click)="delete()">Delete</button>
+        </div>
+      </div>
+    </div>
   </div>
-  <input
+</form>
-    type="text"
-    class="input-field"
-    [class.border-8]="hotelForm.get('description')?.invalid"
-    id="description"
-    formControlName="description"
-  />
-  <label for="price">Price</label>
-  <div class="text-red" *ngIf="errorMessages['price']">
-    {{ errorMessages["price"] }}
-  </div>
-  <input
-    type="number"
-    class="input-field"
-    [class.border-8]="
-      hotelForm.get('price')?.invalid && hotelForm.get('price')?.touched
-    "
-    id="price"
-    formControlName="price"
-  />
-  <button
-    class="submit-button"
-    (click)="submit()"
-    [disabled]="!hotelForm.valid"
-    type="submit"
-  >
-    😃 Submit
-  </button>
-  <a class="back-button" routerLink="/">😭 Cancel</a>
-</form>

src/app/hotel-form/hotel-form.component.spec.ts

@@ -8,8 +8,9 @@ describe('HotelFormComponent', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [HotelFormComponent],
+      imports: [HotelFormComponent]
-    }).compileComponents();
+    })
+    .compileComponents();
 
     fixture = TestBed.createComponent(HotelFormComponent);
     component = fixture.componentInstance;

src/app/hotel-form/hotel-form.component.ts

@@ -1,90 +1,150 @@
-import { Component, Input } from '@angular/core';
+import { Component, inject, Input } from '@angular/core';
-import { Hotel } from '../HotelItem/hotel';
+import { AbstractControl, FormArray, FormControl, FormGroup, ReactiveFormsModule, Validators } from "@angular/forms";
-import {
+import { Hotel } from "../hotel-item/hotel";
-  AbstractControl,
-  FormControl,
-  FormGroup,
-  ReactiveFormsModule,
-  Validators,
-} from '@angular/forms';
-import { NgFor, NgIf } from '@angular/common';
 import { HttpClient } from '@angular/common/http';
-import { Router, RouterLink } from '@angular/router';
+import { catchError, debounceTime } from "rxjs";
+import { Router, RouterLink } from "@angular/router";
+import { NgClass, NgFor, NgIf } from "@angular/common";
+import { MatButtonModule } from "@angular/material/button";
+import { MatIconModule } from "@angular/material/icon";
+import { FormsModule } from '@angular/forms';
 
 @Component({
   selector: 'app-hotel-form',
   standalone: true,
-  imports: [ReactiveFormsModule, NgIf, NgFor, RouterLink],
+  imports: [
+    ReactiveFormsModule,
+    RouterLink,
+    NgIf,
+    MatButtonModule,
+    MatIconModule,
+    NgFor,
+    FormsModule,
+    NgClass
+  ],
   templateUrl: './hotel-form.component.html',
-  styleUrl: './hotel-form.component.css',
+  styleUrl: './hotel-form.component.css'
 })
 export class HotelFormComponent {
-  @Input() public hotel!: Hotel;
+  public form!: FormGroup;
-  public hotelForm!: FormGroup;
-  public errorMsg: string = 'testing';
-  errorMessages: Record<string, string> = {};
 
-  constructor(
+  @Input()
-    public http: HttpClient,
+  public hotel!: Hotel;
-    public router: Router,
-  ) {}
 
-  private validationErrorMessages: Record<string, string> = {
+  public router: Router = inject(Router);
-    required: 'This field is required',
-    minlength: 'The value is too short',
-    maxlength: 'The value is too long',
-    pattern: 'The value format is incorrect',
-  };
 
-  setMessage(value: AbstractControl): void {
+  public showDeleteConfirmation = false;
-    if ((value.touched || value.dirty) && value.errors) {
+
-      this.errorMsg = Object.keys(value.errors)
+  constructor(private http: HttpClient) { }
-        .map((key) => {
+
-          console.log(this.validationErrorMessages[key]);
+  public errorMessage: string = '';
-          return this.validationErrorMessages[key] || `Unknown error: ${key}`;
+
-        })
+  ngOnInit() {
-        .join(' ');
+    this.form = new FormGroup({
+      name: new FormControl(this.hotel?.hotelName || '', [Validators.minLength(3), Validators.required]),
+      description: new FormControl(this.hotel?.description || '', [Validators.minLength(3), Validators.required]),
+      price: new FormControl(this.hotel?.price || '', [Validators.min(0), Validators.required]),
+      rating: new FormControl(this.hotel?.rating || '', [Validators.min(0), Validators.max(5), Validators.required]),
+      tags: new FormArray(this.hotel?.tags?.map(tag => new FormControl(tag)) || [])
+    });
+
+    Object.keys(this.form.controls).forEach(key => {
+      const control = this.form.get(key);
+      control?.valueChanges.pipe(
+        debounceTime(1000)
+      ).subscribe(() => { 
+        this.setError(control as AbstractControl, key);
+      });
+    });
+  }
+
+  public delete() {
+    this.http.delete(`api/hotels/${this.hotel?.id}`).pipe(
+      catchError(err => {
+        console.error('Error deleting hotel', err);
+        return err;
+      })
+    ).subscribe(() => {
+      console.log('Hotel deleted');
+    });
+
+    this.router.navigate(['/']);
+  }
+
+  get tags() {
+    return this.form.get('tags') as FormArray;
+  }
+
+  public addTag() {
+    this.tags.push(new FormControl(''));
+  }
+
+  public submit() {
+    if (this.form.valid && !this.errorMessage) {
+      const hotelData: Hotel = {
+        id: this.hotel?.id || 0,
+        hotelName: this.form.value.name,
+        description: this.form.value.description,
+        price: this.form.value.price,
+        rating: this.form.value.rating,
+        imageUrl: this.hotel?.imageUrl || 'https://placehold.co/2000x1050/EEE/31343C',
+        tags: this.form.value.tags || []
+      };
+
+      if (this.hotel) {
+        this.http.put(`api/hotels/${this.hotel.id}`, hotelData).pipe(
+          catchError(err => {
+            console.error('Error updating hotel', err);
+            return err;
+          })
+        ).subscribe(() => {
+          console.log('Hotel updated');
+        });
+      }
+
+      else {
+        this.http.post('api/hotels', hotelData).pipe(
+          catchError(err => {
+            console.error('Error creating hotel', err);
+            return err;
+          })
+        ).subscribe(() => {
+          console.log('Hotel created');
+        });
+      }
+
+      this.form.reset();
+      this.router.navigate(['/']);
     }
   }
 
-  updateErrorMessages(): void {
+  private validationErrors: Record<string, string> = {
-    this.errorMessages = {};
+    'required': 'This field is required',
+    'minlength': 'This field must be at least 3 characters long',
+    'min': 'This field must be at least 0',
+    'max': 'This field must be at most 5',
+    'name.required': 'Hotel name is required',
+    'name.minlength': 'Hotel name must be at least 3 characters long',
+    'description.required': 'Hotel description is required', 
+    'description.minlength': 'Hotel description must be at least 3 characters long',
+    'price.required': 'Hotel price is required',
+    'price.min': 'Hotel price cannot be negative',
+    'rating.required': 'Hotel rating is required',
+    'rating.min': 'Hotel rating must be at least 0',
+    'rating.max': 'Hotel rating cannot be more than 5',
+    'tags.required': 'At least one tag is required',
+  };
 
-    Object.keys(this.hotelForm.controls).forEach((field) => {
+  private setError(control: AbstractControl, controlName: string) {
-      const control = this.hotelForm.get(field);
+    if ((control.touched || control.dirty) && control.errors) {
-
+      const errors = Object.keys(control.errors).map(key => {
-      if (control && control.errors) {
+        const errorKey = `${controlName}.${key}`;
-        this.errorMessages[field] = Object.keys(control.errors)
+        return this.validationErrors[errorKey] || this.validationErrors[key];
-          .map(
+      });
-            (errorKey) =>
+      this.errorMessage = errors.join(' ');
-              this.validationErrorMessages[errorKey] ||
+    } else {
-              `Unknown error: ${errorKey}`,
+      this.errorMessage = '';
-          )
+    }
-          .join(' ');
-      }
-    });
-  }
-
-  ngOnInit(): void {
-    this.hotelForm = new FormGroup({
-      name: new FormControl(this.hotel.hotelName, Validators.required),
-      description: new FormControl(this.hotel.description, Validators.required),
-      price: new FormControl(this.hotel.price, Validators.required),
-    });
-
-    // this.hotelForm.valueChanges.subscribe(data => this.setMessage(this.hotelForm.get("name")!));
-    // this.hotelForm.valueChanges.subscribe(data => this.setMessage(this.hotelForm.get("description")!));
-    // this.hotelForm.valueChanges.subscribe(data => this.setMessage(this.hotelForm.get("price")!));
-    //
-    this.hotelForm.valueChanges.subscribe(() => this.updateErrorMessages());
-  }
-
-  submit(): void {
-    this.hotel.hotelName = this.hotelForm.get('name')?.value;
-    this.hotel.description = this.hotelForm.get('description')?.value;
-    this.hotel.price = this.hotelForm.get('price')?.value;
-    console.log(this.hotelForm.value);
-    this.http.put('/api/hotels/' + this.hotel.id, this.hotel).subscribe();
-    this.router.navigate(['/']);
   }
 }
+

src/app/hotel-item/HotelItem.component.html

@@ -0,0 +1,8 @@
+<p class="text-2xl font-bold text-gray-800 mb-2">Name: {{hotel.hotelName}}</p>
+<p class="text-base text-gray-600 mb-4">Description: {{hotel.description}}</p>
+<p class="text-lg font-medium text-green-600 mb-4">Price: {{hotel.price | currency : getCurrencyCode(selectedLanguage) : "symbol" : "2.2-2" : selectedLanguage}}</p>
+<select [ngModel]="selectedLanguage" (ngModelChange)="languageChange($event)" class="block w-full p-2 border border-gray-300 rounded-md mb-4 focus:border-blue-500 focus:ring focus:ring-blue-200">
+  <option *ngFor="let lang of langs" [value]="lang.code" [selected]="lang.lang == 'de'">{{lang.lang}}</option>
+</select>
+<img src="{{hotel.imageUrl}}" alt="Hotel" class="w-full h-auto rounded-lg shadow-lg mb-4">
+<a *ngIf="!isDetail" routerLink="/hotels/{{hotel.id}}" class="text-blue-600 hover:text-blue-800 hover:underline mb-4 block">Details</a>

src/app/hotel-item/HotelItem.component.ts

@@ -0,0 +1,53 @@
+import { Component, Input } from "@angular/core";
+import { Hotel } from "./hotel";
+import {CurrencyPipe, NgForOf, NgIf} from "@angular/common";
+import { FormsModule } from "@angular/forms";
+import { RouterLink } from "@angular/router";
+
+@Component({
+  selector: 'app-hotel-item',
+  standalone: true,
+  templateUrl: './HotelItem.component.html',
+  imports: [CurrencyPipe, FormsModule, NgIf, RouterLink, NgForOf],
+})
+export class HotelItem {
+
+  @Input() public hotel!: Hotel;
+  public selectedLanguage?: string;
+
+  @Input() public isDetail: boolean = false;
+
+  public languageChange(lang: string) {
+    this.selectedLanguage = lang;
+    console.log(this.selectedLanguage);
+  }
+
+  public getCurrencyCode(langCode: string | undefined): string {
+    if (!langCode) return '';
+
+    for (let language of this.langs) {
+      if (language.code === langCode) {
+        return language.currency;
+      }
+    }
+    return '';
+  }
+
+  public langs = [
+    {
+      "lang": "en",
+      "code": "en-US",
+      "currency": "USD"
+    },
+    {
+      "lang": "cn",
+      "code": "cn-CN",
+      "currency": "CNY"
+    },
+    {
+      "lang": "de",
+      "code": "de-DE",
+      "currency": "EUR"
+    }
+  ];
+}

src/app/hotel-item/hotel.ts

@@ -6,6 +6,4 @@ export interface Hotel {
   imageUrl: string;
   rating: number;
   tags: Array<string>;
-  email?: string;
-  phone?: string;
 }

src/app/hotel-list/hotel-list.component.html

@@ -1,15 +1,28 @@
 <div class="container p-4 mx-auto max-w-4xl">
-  <button (click)="loadTest2()">Load Test2</button>
+  <div class="fixed top-0 left-0 w-full bg-white/80 backdrop-blur-xl z-50">
-  <ng-container #test2></ng-container>
+    <div class="justify-center max-w-4xl container p-4 mx-auto">
-  <h1 class="mt-6">{{ "hello" | uppercase | text }}</h1>
+      <h1 class="">{{'hello' | uppercase | text}}</h1>
-  <a class="submit-button" routerLink="/new">CREATE NEW HOTEL</a>
+      <app-search [(input)]="search"></app-search>
-  <app-search [(input)]="search"></app-search>
+      <button routerLink="/create-hotel" mat-flat-button
-  @if (hotels[0].hotelName) {
+        class="btn btn-primary bg-blue-500 text-white font-semibold py-2 px-4 rounded-md shadow-md hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-400 focus:ring-opacity-75 my-4">Create
-    <div *ngFor="let hotel of hotels">
+        New Hotel</button>
-      <app-hotel-item
-        *ngIf="hotel.hotelName.toLowerCase().includes(search.toLowerCase())"
-        [hotel]="hotel"
-      ></app-hotel-item>
     </div>
-  }
+  </div>
+  <div *ngIf="hotels[0].hotelName" class="mt-64">
+    <div *ngFor="let hotel of hotels">
+      <app-hotel-item *ngIf="hotel.hotelName.toLowerCase().includes(search.toLowerCase())" [hotel]="hotel"></app-hotel-item>
+    </div>
+  </div>
+
+  <div *ngIf="!hotels[0].hotelName" class="mt-64">
+    <div class="animate-pulse space-y-4">
+      <div class="h-8 bg-gray-200 rounded w-52"></div>
+      <div class="space-y-3">
+        <div class="h-4 bg-gray-200 rounded w-3/4"></div>
+        <div class="h-4 bg-gray-200 rounded w-11/12"></div>
+        <div class="h-4 bg-gray-200 rounded w-2/3"></div>
+      </div>
+      <div class="h-[300px] bg-gray-200 rounded w-full"></div>
+    </div>
+  </div>
 </div>

src/app/hotel-list/hotel-list.component.spec.ts

@@ -8,8 +8,9 @@ describe('HotelListComponent', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [HotelListComponent],
+      imports: [HotelListComponent]
-    }).compileComponents();
+    })
+    .compileComponents();
 
     fixture = TestBed.createComponent(HotelListComponent);
     component = fixture.componentInstance;

src/app/hotel-list/hotel-list.component.ts

@@ -1,94 +1,33 @@
-import { CommonModule, NgFor, NgIf, UpperCasePipe } from '@angular/common';
+import { NgFor, NgIf, UpperCasePipe } from '@angular/common';
-import { Component, inject, ViewChild, ViewContainerRef } from '@angular/core';
+import { Component, inject } from '@angular/core';
 import { TextPipe } from '../../text.pipe';
-import { SearchComponent } from '../Search/search.component';
+import { SearchComponent } from '../search/search.component';
-import { HotelService } from '../Parent/services/hotel.service';
+import { HotelService } from '../service/hotel.service';
-import { Hotel } from '../HotelItem/hotel';
+import { Hotel } from '../hotel-item/hotel';
 import { HttpClient } from '@angular/common/http';
-import { filter, from, last, map, Observable, scan } from 'rxjs';
+import { HotelItem } from '../hotel-item/HotelItem.component';
-import { HotelItem } from '../HotelItem/HotelItem.component';
 import { RouterLink } from '@angular/router';
-
+import { MatButtonModule } from '@angular/material/button';
-interface User {
-  name: string;
-  age: number;
-}
 
 @Component({
   selector: 'app-hotel-list',
   standalone: true,
-  imports: [
+  imports: [UpperCasePipe, TextPipe, SearchComponent, HotelItem, NgFor, NgIf, RouterLink, MatButtonModule],
-    UpperCasePipe,
-    TextPipe,
-    SearchComponent,
-    HotelItem,
-    NgFor,
-    NgIf,
-    RouterLink,
-  ],
   templateUrl: './hotel-list.component.html',
-  styleUrl: './hotel-list.component.css',
+  styleUrl: './hotel-list.component.css'
 })
 export class HotelListComponent {
-  public search: string = '';
+  public search: string = "";
   public hotelService: HotelService = inject(HotelService);
   public response: any = null;
   public hotels: Array<Hotel> = [{} as Hotel];
 
-  @ViewChild('test2', { read: ViewContainerRef })
+  constructor (private http: HttpClient) {
-  private test2ViewContainerRef!: ViewContainerRef;
-
-  constructor(private http: HttpClient) { }
-
-  async loadTest2() {
-    for (let i = 0; i < 1; i++) {
-      const { Test2Component } = await import('../test2/test2.component');
-
-      this.test2ViewContainerRef.createComponent(Test2Component);
-    }
   }
 
   ngOnInit() {
-    this.http.get<Array<Hotel>>('api/hotels').subscribe((res) => {
+    this.http.get<Array<Hotel>>("api/hotels").subscribe(res => {
       this.hotels = res;
     });
-
-    const users = [
-      { name: 'Max', age: 21 },
-      { name: 'Peter', age: 31 },
-      { name: 'Hans', age: 13 },
-      { name: 'Klaus', age: 51 },
-      { name: 'Dieter', age: 1 },
-      { name: 'Jan-Marlon', age: 3 },
-    ];
-
-    const stream: Observable<User> = from(users);
-
-    stream
-      .pipe(
-        filter((user) => user.age > 18),
-        scan((acc, user) => acc + user.age, 0),
-        map((ageSum, index) => ageSum / (index + 1)),
-        last(),
-      )
-      .subscribe(console.log);
-
-    // const stream: Observable<number | string> = from([5, 1, 2, 12, 5, 14, 17, 5, "testing"]);
-
-    // stream.pipe(
-    //  filter((value) => typeof value === "number"),
-    //  tap((value) => console.log("Zahl:" + value)),
-    //  filter((value: number) => value % 2 === 0),
-    //  tap((value) => console.log("Gerade Zahl: " + value)),
-    //  toArray(),
-    //).subscribe(console.log);
   }
-
-  public test() {
-    console.log(this.search);
-  }
-
-  // public foundHotels = this.hotels.pipe(
-  //   filter((hotel) => hotel.hotelName.includes(this.search)),
-  // );
 }

src/app/new-hotel/new-hotel.component.html

@@ -1,120 +0,0 @@
-<p>Create Hotel</p>
-
-<form [formGroup]="hotelForm">
-  <div class="text-red-500 bg-white m-3" *ngIf="errorMessages['form']">
-    {{ errorMessages["form"] }}
-  </div>
-
-  <label for="name">Name</label>
-  <div class="text-red-500" *ngIf="errorMessages['name']">
-    {{ errorMessages["name"] }}
-  </div>
-  <input
-    type="text"
-    class="border-red-500"
-    [class.border-8]="
-      hotelForm.get('name')?.invalid && hotelForm.get('name')?.touched
-    "
-    id="name"
-    formControlName="name"
-  />
-  <label for="description">Description</label>
-  <div class="text-red-500" *ngIf="errorMessages['description']">
-    {{ errorMessages["description"] }}
-  </div>
-  <input
-    type="text"
-    class="border-red-500"
-    [class.border-8]="
-      hotelForm.get('description')?.invalid &&
-      hotelForm.get('description')?.touched
-    "
-    id="description"
-    formControlName="description"
-  />
-  <label for="imageUrl">Image</label>
-  <div class="text-red-500" *ngIf="errorMessages['imageUrl']">
-    {{ errorMessages["imageUrl"] }}
-  </div>
-  <input
-    type="url"
-    class="border-red-500"
-    [class.border-8]="
-      hotelForm.get('imageUel')?.invalid && hotelForm.get('imageUrl')?.touched
-    "
-    id="imageUrl"
-    formControlName="imageUrl"
-  />
-  <label for="price">Price</label>
-  <div class="text-red-500" *ngIf="errorMessages['price']">
-    {{ errorMessages["price"] }}
-  </div>
-  <input
-    type="number"
-    class="border-red-500"
-    [class.border-8]="hotelForm.get('price')?.invalid"
-    id="price"
-    formControlName="price"
-  />
-  <label for="rating">Rating</label>
-  <div class="text-red-500" *ngIf="errorMessages['rating']">
-    {{ errorMessages["rating"] }}
-  </div>
-  <input
-    type="rating"
-    class="border-red-500"
-    [class.border-8]="hotelForm.get('rating')?.invalid"
-    id="rating"
-    formControlName="rating"
-  />
-  <button class="submit-button" (click)="addTag()">Add Tag</button>
-  @for (tag of getTags().controls; track tag) {
-    <input
-      type="tag"
-      class="border-red-500"
-      [class.border-8]="hotelForm.get('tag')?.invalid"
-      id="tag"
-      formControlName="tag"
-    />
-    <button (click)="deleteTag(tag)" class="delete-button">delete</button>
-  }
-
-  <input type="radio" value="None" formControlName="contactType" />None
-  <input type="radio" value="Email" formControlName="contactType" />Email
-  <input type="radio" value="SMS" formControlName="contactType" />SMS
-
-  @if (hotelForm.get("contactType")?.value == "Email") {
-    <div class="mt-3">
-      <label for="email">Email</label>
-      <input type="email" formControlName="email" id="email" />
-      <label for="emailConfirmation">Email Confirmation</label>
-      <input
-        type="email"
-        formControlName="emailConfirmation"
-        id="emailConfirmation"
-      />
-    </div>
-  }
-  @if (hotelForm.get("contactType")?.value == "SMS") {
-    <div class="mt-3">
-      <label for="phone">Phone Number</label>
-      <input type="tel" formControlName="phone" id="phone" />
-      <label for="phoneConfirmation">Phone Number Confirmation</label>
-      <input
-        type="tel"
-        formControlName="phoneConfirmation"
-        id="phoneConfirmation"
-      />
-    </div>
-  }
-
-  <button
-    class="submit-button"
-    (click)="submit()"
-    [disabled]="!hotelForm.valid"
-    type="submit"
-  >
-    Submit
-  </button>
-  <a routerLink="/" class="delete-button">Cancel</a>
-</form>

src/app/new-hotel/new-hotel.component.spec.ts

@@ -1,22 +0,0 @@
-import { ComponentFixture, TestBed } from '@angular/core/testing';
-
-import { NewHotelComponent } from './new-hotel.component';
-
-describe('NewHotelComponent', () => {
-  let component: NewHotelComponent;
-  let fixture: ComponentFixture<NewHotelComponent>;
-
-  beforeEach(async () => {
-    await TestBed.configureTestingModule({
-      imports: [NewHotelComponent],
-    }).compileComponents();
-
-    fixture = TestBed.createComponent(NewHotelComponent);
-    component = fixture.componentInstance;
-    fixture.detectChanges();
-  });
-
-  it('should create', () => {
-    expect(component).toBeTruthy();
-  });
-});

src/app/new-hotel/new-hotel.component.ts

@@ -1,139 +0,0 @@
-import { HttpClient } from '@angular/common/http';
-import { Component } from '@angular/core';
-import {
-  AbstractControl,
-  FormArray,
-  FormControl,
-  FormGroup,
-  ReactiveFormsModule,
-  Validators,
-} from '@angular/forms';
-import { Router, RouterLink } from '@angular/router';
-import { Hotel } from '../HotelItem/hotel';
-import { NgFor, NgIf } from '@angular/common';
-import { CrossValidator } from '../crossValidator.service';
-
-@Component({
-  selector: 'app-new-hotel',
-  standalone: true,
-  imports: [ReactiveFormsModule, NgIf, NgFor, RouterLink],
-  templateUrl: './new-hotel.component.html',
-  styleUrl: './new-hotel.component.css',
-})
-export class NewHotelComponent {
-  public hotelForm!: FormGroup;
-  public hotel!: Hotel;
-  errorMessages: Record<string, string> = {};
-
-  private validationErrorMessages: Record<string, string> = {
-    required: 'This field is required',
-    minlength: 'The value is too short',
-    maxlength: 'The value is too long',
-    pattern: 'The value format is incorrect',
-  };
-
-  private fullFormValidationErrorMessages: Record<string, string> = {
-    mismatch: 'The name and description have to be the same',
-    mismatchEmail: 'The Emails must be the same.',
-    mismatchPhone: 'The Phone numbers must be the same.',
-  };
-
-  updateErrorMessages(): void {
-    this.errorMessages = {};
-
-    Object.keys(this.hotelForm.controls).forEach((field) => {
-      const control = this.hotelForm.get(field);
-
-      if (control && control.errors && control.touched) {
-        this.errorMessages[field] = Object.keys(control.errors)
-          .map(
-            (errorKey) =>
-              this.validationErrorMessages[errorKey] ||
-              `Unknown error: ${errorKey}`,
-          )
-          .join(' ');
-      }
-    });
-
-    if (this.hotelForm.errors) {
-      Object.keys(this.hotelForm.errors).forEach((errorKey) => {
-        const errorMessage =
-          this.fullFormValidationErrorMessages[errorKey] ||
-          `Unknown error: ${errorKey}`;
-        this.errorMessages['form'] = errorMessage;
-      });
-    }
-
-    console.log(this.errorMessages);
-  }
-
-  ngOnInit(): void {
-    const tags = [];
-
-    for (const tag of this.hotel?.tags ?? []) {
-      tags.push(new FormControl(tag, [Validators.required]));
-    }
-
-    this.hotelForm = new FormGroup(
-      {
-        name: new FormControl('', Validators.required),
-        description: new FormControl('', Validators.required),
-        price: new FormControl(0, Validators.required),
-        imageUrl: new FormControl('', Validators.required),
-        rating: new FormControl(0, Validators.required),
-        contactType: new FormControl('None'),
-        email: new FormControl(''),
-        emailConfirmation: new FormControl(''),
-        phone: new FormControl(''),
-        phoneConfirmation: new FormControl(''),
-        tags: new FormArray(tags),
-      },
-      { validators: new CrossValidator().crossValidate() },
-    );
-
-    this.hotelForm.valueChanges.subscribe(() => this.updateErrorMessages());
-    this.hotelForm.valueChanges.subscribe(() => this.formUpdated());
-  }
-
-  formUpdated() {
-    console.log(this.hotelForm.get('contactType')?.value);
-  }
-
-  getTags() {
-    return this.hotelForm.controls['tags'] as FormArray;
-  }
-
-  deleteTag(tagElement: AbstractControl) {
-    this.getTags().removeAt(this.getTags().controls.indexOf(tagElement));
-  }
-
-  addTag() {
-    this.getTags().push(new FormControl('', [Validators.required]));
-  }
-
-  constructor(
-    public http: HttpClient,
-    public router: Router,
-  ) {}
-
-  submit(): void {
-    console.log(this.hotelForm.value);
-    const hotel: Hotel = {
-      id: 0,
-      hotelName: this.hotelForm.get('name')?.value,
-      description: this.hotelForm.get('description')?.value,
-      price: this.hotelForm.get('price')?.value,
-      imageUrl: this.hotelForm.get('imageUrl')?.value,
-      rating: this.hotelForm.get('rating')?.value,
-      tags: this.hotelForm.get('tags')?.value,
-    };
-
-    if (this.hotelForm.get('contactType')?.value == 'Email') {
-      hotel.email = this.hotelForm.get('email')?.value;
-    } else {
-      hotel.phone = this.hotelForm.get('phone')?.value;
-    }
-    this.http.post('/api/hotels/', hotel).subscribe();
-    this.router.navigate(['/']);
-  }
-}

src/app/not-found/not-found.component.html

@@ -0,0 +1,7 @@
+<div class="min-h-screen flex items-center justify-center bg-gray-100">
+  <div class="text-center">
+    <h1 class="text-9xl font-bold text-gray-800">404</h1>
+    <p class="text-2xl font-medium text-gray-600 mb-8">Page Not Found</p>
+    <a type="submit" mat-flat-button routerLink="/">Return Home</a>
+  </div>
+</div>

src/app/not-found/not-found.component.spec.ts

@@ -1,18 +1,18 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
-import { Test2Component } from './test2.component';
+import { NotFoundComponent } from './not-found.component';
 
-describe('Test2Component', () => {
+describe('NotFoundComponent', () => {
-  let component: Test2Component;
+  let component: NotFoundComponent;
-  let fixture: ComponentFixture<Test2Component>;
+  let fixture: ComponentFixture<NotFoundComponent>;
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [Test2Component]
+      imports: [NotFoundComponent]
     })
     .compileComponents();
 
-    fixture = TestBed.createComponent(Test2Component);
+    fixture = TestBed.createComponent(NotFoundComponent);
     component = fixture.componentInstance;
     fixture.detectChanges();
   });

src/app/not-found/not-found.component.ts

@@ -0,0 +1,17 @@
+import { Component } from '@angular/core';
+import { MatButtonModule } from '@angular/material/button';
+import { RouterLink } from '@angular/router';
+
+@Component({
+  selector: 'app-not-found',
+  standalone: true,
+  imports: [
+    MatButtonModule,
+    RouterLink
+  ],
+  templateUrl: './not-found.component.html',
+  styleUrl: './not-found.component.css'
+})
+export class NotFoundComponent {
+
+}

src/app/service/hotel.service.ts

@@ -0,0 +1,51 @@
+import { Injectable } from "@angular/core";
+import { Hotel } from "../hotel-item/hotel";
+import { HttpClient, HttpErrorResponse } from "@angular/common/http";
+import { Observable, throwError, catchError } from "rxjs";
+
+@Injectable({
+  providedIn: 'root'
+})
+export class HotelService {
+  private apiUrl = 'api/hotels';
+
+  constructor(private http: HttpClient) {}
+
+  private handleError(error: HttpErrorResponse) {
+    let errorMessage = 'An error occurred';
+    if (error.error instanceof ErrorEvent) {
+      // Client-side error
+      errorMessage = `Error: ${error.error.message}`;
+    } else {
+      // Server-side error
+      errorMessage = `Error Code: ${error.status}\nMessage: ${error.message}`;
+    }
+    console.error(errorMessage);
+    return throwError(() => errorMessage);
+  }
+
+  public getHotels(): Observable<Hotel[]> {
+    return this.http.get<Hotel[]>(this.apiUrl)
+      .pipe(catchError(this.handleError));
+  }
+
+  public getHotel(id: number): Observable<Hotel> {
+    return this.http.get<Hotel>(`${this.apiUrl}/${id}`)
+      .pipe(catchError(this.handleError));
+  }
+
+  public createHotel(hotel: Hotel): Observable<Hotel> {
+    return this.http.post<Hotel>(this.apiUrl, hotel)
+      .pipe(catchError(this.handleError));
+  }
+
+  public updateHotel(hotel: Hotel): Observable<Hotel> {
+    return this.http.put<Hotel>(`${this.apiUrl}/${hotel.id}`, hotel)
+      .pipe(catchError(this.handleError));
+  }
+
+  public deleteHotel(id: number): Observable<{}> {
+    return this.http.delete(`${this.apiUrl}/${id}`)
+      .pipe(catchError(this.handleError));
+  }
+}

src/app/star-rating/star-rating.component.spec.ts

@@ -8,8 +8,9 @@ describe('StarRatingComponent', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [StarRatingComponent],
+      imports: [StarRatingComponent]
-    }).compileComponents();
+    })
+    .compileComponents();
 
     fixture = TestBed.createComponent(StarRatingComponent);
     component = fixture.componentInstance;

src/app/star-rating/star-rating.component.ts

@@ -6,7 +6,7 @@ import { Component, Input } from '@angular/core';
   standalone: true,
   imports: [NgClass, NgFor],
   templateUrl: './star-rating.component.html',
-  styleUrl: './star-rating.component.css',
+  styleUrl: './star-rating.component.css'
 })
 export class StarRatingComponent {
   @Input() public rating: number = 0;

src/app/test/test.component.html

@@ -1,15 +0,0 @@
-<p>test works!</p>
-
-<form [formGroup]="loginForm">
-  <label for="username">Username</label>
-  <input
-    type="text"
-    id="username"
-    autocomplete="username"
-    formControlName="username"
-  />
-  <label for="password">Password</label>
-  <input type="password" id="password" formControlName="password" />
-  <button (click)="submit()" type="submit">Login</button>
-  <button type="reset" (click)="reset()">Reset</button>
-</form>

src/app/test/test.component.spec.ts

@@ -1,22 +0,0 @@
-import { ComponentFixture, TestBed } from '@angular/core/testing';
-
-import { TestComponent } from './test.component';
-
-describe('TestComponent', () => {
-  let component: TestComponent;
-  let fixture: ComponentFixture<TestComponent>;
-
-  beforeEach(async () => {
-    await TestBed.configureTestingModule({
-      imports: [TestComponent],
-    }).compileComponents();
-
-    fixture = TestBed.createComponent(TestComponent);
-    component = fixture.componentInstance;
-    fixture.detectChanges();
-  });
-
-  it('should create', () => {
-    expect(component).toBeTruthy();
-  });
-});

src/app/test/test.component.ts

@@ -1,34 +0,0 @@
-import { Component } from '@angular/core';
-import { FormControl, FormGroup, ReactiveFormsModule } from '@angular/forms';
-
-@Component({
-  selector: 'app-test',
-  standalone: true,
-  imports: [ReactiveFormsModule],
-  templateUrl: './test.component.html',
-  styleUrl: './test.component.css',
-})
-export class TestComponent {
-  public loginForm!: FormGroup;
-
-  public ngOnInit(): void {
-    this.loginForm = this.setUpLoginForm();
-
-    console.log(this.loginForm);
-  }
-
-  setUpLoginForm(): FormGroup {
-    return new FormGroup({
-      username: new FormControl('Jan'),
-      password: new FormControl(''),
-    });
-  }
-
-  reset(): void {
-    this.loginForm = this.setUpLoginForm();
-  }
-
-  submit(): void {
-    console.log(this.loginForm.value);
-  }
-}

src/app/test2/test2.component.html

@@ -1,6 +0,0 @@
-<iframe
-  src="https://funhtml5games.com?embed=flappy"
-  style="width: 800px; height: 520px; border: none"
-  frameborder="0"
-  scrolling="no"
-></iframe>

src/app/test2/test2.component.ts

@@ -1,11 +0,0 @@
-import { Component } from '@angular/core';
-
-@Component({
-  selector: 'app-test2',
-  imports: [],
-  templateUrl: './test2.component.html',
-  styleUrl: './test2.component.css'
-})
-export class Test2Component {
-
-}

src/currency.pipe.ts

@@ -1,11 +1,11 @@
-import { Pipe, PipeTransform } from '@angular/core';
+import {Pipe, PipeTransform} from '@angular/core';
 
 @Pipe({
   name: 'jkcurrency',
-  standalone: true,
+  standalone: true
 })
 export class CurrencyPipe implements PipeTransform {
   transform(value: string): string {
-    return value.replaceAll('L', 'P');
+    return value.replaceAll("L", "P");
   }
 }

src/index.html

@@ -1,14 +1,16 @@
 <!doctype html>
 <html lang="en">
-  <head>
+<head>
-    <meta charset="utf-8" />
+  <meta charset="utf-8">
-    <title>HotelManager</title>
+  <title>HotelManager</title>
-    <base href="/" />
+  <base href="/">
-    <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <meta name="viewport" content="width=device-width, initial-scale=1">
-    <link rel="icon" type="image/x-icon" href="favicon.ico" />
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
-    <link rel="stylesheet" href="./styles.css" />
+  <link rel="stylesheet" href="./styles.css">
-  </head>
+  <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500&display=swap" rel="stylesheet">
-  <body class="bg-pink-600 p-32">
+  <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
-    <app-root></app-root>
+</head>
-  </body>
+<body class="mat-typography">
+  <app-root></app-root>
+</body>
 </html>

src/main.ts

@@ -2,6 +2,5 @@ import { bootstrapApplication } from '@angular/platform-browser';
 import { appConfig } from './app/app.config';
 import { AppComponent } from './app/app.component';
 
-bootstrapApplication(AppComponent, appConfig).catch((err) =>
+bootstrapApplication(AppComponent, appConfig)
-  console.error(err),
+  .catch((err) => console.error(err));
-);

src/styles.css

@@ -7,18 +7,5 @@
   @apply border-black rounded px-3 py-1 border-[3px];
 }
 
-.input-field {
+html, body { height: 100%; }
-  @apply border-red-500 text-3xl rounded-full bg-gray-500 font-bold p-3 m-3 border-8;
+body { margin: 0; font-family: Roboto, "Helvetica Neue", sans-serif; }
-}
-
-.back-button {
-  @apply border-black rounded bg-blue-500 border-[30px] m-3 text-3xl font-bold p-3;
-}
-
-.submit-button {
-  @apply border-black rounded-full bg-green-500 border-[30px] m-3 text-3xl font-bold p-3;
-}
-
-.delete-button {
-  @apply border-black rounded bg-red-500 border-[30px] m-3 text-3xl font-bold p-3;
-}

src/text.pipe.ts

@@ -1,11 +1,11 @@
-import { Pipe, PipeTransform } from '@angular/core';
+import {Pipe, PipeTransform} from '@angular/core';
 
 @Pipe({
   name: 'text',
-  standalone: true,
+  standalone: true
 })
 export class TextPipe implements PipeTransform {
   transform(value: string): string {
-    return value.replaceAll('L', 'P');
+    return value.replaceAll("L", "P");
   }
 }

tailwind.config.js

@@ -1,25 +1,9 @@
 /** @type {import('tailwindcss').Config} */
 
-const colors = require("tailwindcss/colors");
-
 module.exports = {
-  content: ["./src/**/*.{html,ts}"],
+  content: [
-  theme: {
+    "./src/**/*.{html,ts}",
-    extend: {
+  ],
-      colors: {
-        ...colors,
-      },
-      keyframes: {
-        shake: {
-          "0%, 100%": { transform: "translateX(0)" },
-          "25%": { transform: "translateX(-30px)" },
-          "75%": { transform: "translateX(30px)" },
-        },
-      },
-      animation: {
-        shake: "shake 10s ease-in-out infinite",
-      },
-    },
-  },
   plugins: [],
-};
+}
+

tsconfig.app.json

@@ -6,6 +6,10 @@
     "outDir": "./out-tsc/app",
     "types": []
   },
-  "files": ["src/main.ts"],
+  "files": [
-  "include": ["src/**/*.d.ts"]
+    "src/main.ts"
+  ],
+  "include": [
+    "src/**/*.d.ts"
+  ]
 }

tsconfig.json

@@ -18,7 +18,10 @@
     "importHelpers": true,
     "target": "ES2022",
     "module": "ES2022",
-    "lib": ["ES2022", "dom"]
+    "lib": [
+      "ES2022",
+      "dom"
+    ]
   },
   "angularCompilerOptions": {
     "enableI18nLegacyMessageIdFormat": false,

tsconfig.spec.json

@@ -4,7 +4,12 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "outDir": "./out-tsc/spec",
-    "types": ["jasmine"]
+    "types": [
+      "jasmine"
+    ]
   },
-  "include": ["src/**/*.spec.ts", "src/**/*.d.ts"]
+  "include": [
+    "src/**/*.spec.ts",
+    "src/**/*.d.ts"
+  ]
 }