src/Vegasco-Web/src/app/app.html

@@ -1,9 +1,17 @@
 <main class="main">
   <header class="h-12 bg-primary text-primary-contrast">
-    <div class="header max-content-width mx-auto">
+    <div class="header max-content-width mx-auto flex items-center justify-between">
       <a routerLink="/" class="reset cursor-pointer">
         Vegasco
       </a>
+      <span class="flex items-center gap-4">
+        <a routerLink="/entries" class="reset cursor-pointer">
+          Einträge
+        </a>
+        <a routerLink="/cars" class="reset cursor-pointer">
+          Autos
+        </a>
+      </span>
     </div>
   </header>
   <div class="content max-content-width mx-auto">

src/Vegasco-Web/src/app/app.routes.ts

@@ -9,5 +9,9 @@ export const routes: Routes = [
     {
         path: 'entries',
         loadChildren: () => import('./modules/entries/entries.routes').then(m => m.routes)
+    },
+    {
+        path: 'cars',
+        loadChildren: () => import('./modules/cars/cars.routes').then(m => m.routes)
     }
 ];

src/Vegasco-Web/src/app/app.ts

@@ -1,12 +1,12 @@
 import { Component } from '@angular/core';
-import { RouterOutlet } from '@angular/router';
+import { RouterLink, RouterOutlet } from '@angular/router';
 import { MessageService } from 'primeng/api';
 import { ToastModule } from 'primeng/toast';
 
 
 @Component({
   selector: 'app-root',
-  imports: [RouterOutlet, ToastModule],
+  imports: [RouterLink, RouterOutlet, ToastModule],
   providers: [MessageService],
   templateUrl: './app.html',
   styleUrl: './app.scss'

src/Vegasco-Web/src/app/modules/cars/cars.routes.ts

@@ -0,0 +1,17 @@
+import { Routes } from "@angular/router";
+import { CarsComponent } from "./cars/cars.component";
+
+export const routes: Routes = [
+    {
+        path: '',
+        component: CarsComponent
+    },
+    {
+        path: 'create',
+        loadComponent: () => import('./edit-car/edit-car.component').then(m => m.EditCarComponent)
+    },
+    {
+        path: 'edit/:id',
+        loadComponent: () => import('./edit-car/edit-car.component').then(m => m.EditCarComponent)
+    }
+];

src/Vegasco-Web/src/app/modules/cars/cars/cars.component.html

@@ -0,0 +1,38 @@
+<section>
+  <p-scrollTop />
+  <div class="mb-4 flex gap-2 md:justify-end">
+    <div>
+      <p-button label="Erstellen" routerLink="/cars/create">
+        <ng-icon name="matAddSharp"></ng-icon>
+      </p-button>
+    </div>
+  </div>
+  <div>
+    @if (nonDeletedCars$ | async; as cars) {
+    <p-dataView
+      [value]="cars"
+      [paginator]="true"
+      [rows]="25"
+      [rowsPerPageOptions]="[10, 25, 50, 100]"
+      [pageLinks]="0"
+      [showCurrentPageReport]="true"
+      currentPageReportTemplate="{currentPage} / {totalPages}"
+      layout="list">
+      <ng-template #list let-cars>
+        <div class="flex flex-col gap-2">
+          @for (car of cars; track car.id) {
+            <app-car-card [car]="car"
+              (carDeleted)="onCarDeleted($event)" />
+          }
+        </div>
+      </ng-template>
+    </p-dataView>
+    } @else {
+    <div class="flex flex-col gap-2">
+      @for (_ of skeletonsIterationSource; track $index) {
+      <p-skeleton height="4rem" styleClass="mb-2" />
+      }
+    </div>
+    }
+  </div>
+</section>

src/Vegasco-Web/src/app/modules/cars/cars/cars.component.scss

@@ -0,0 +1,3 @@
+th, td {
+    padding: 0.5rem;
+}

src/Vegasco-Web/src/app/modules/cars/cars/cars.component.ts

@@ -0,0 +1,117 @@
+import { AsyncPipe, CommonModule } from '@angular/common';
+import { HttpErrorResponse } from '@angular/common/http';
+import { Component, DestroyRef, inject } from '@angular/core';
+import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
+import { FormControl, ReactiveFormsModule } from '@angular/forms';
+import { RouterLink } from '@angular/router';
+import { NgIconComponent, provideIcons } from '@ng-icons/core';
+import {
+  matAddSharp,
+} from '@ng-icons/material-icons/sharp';
+import { CarClient } from '@vegasco-web/api/cars/car-client';
+import { MessageService } from 'primeng/api';
+import { ButtonModule } from 'primeng/button';
+import { DataViewModule } from 'primeng/dataview';
+import { ScrollTopModule } from 'primeng/scrolltop';
+import { SelectModule } from 'primeng/select';
+import { SkeletonModule } from 'primeng/skeleton';
+import {
+  BehaviorSubject,
+  catchError,
+  combineLatest,
+  EMPTY,
+  map,
+  Observable,
+  throwError
+} from 'rxjs';
+import { CarCardComponent } from './components/car-card/car-card.component';
+
+@Component({
+  selector: 'app-entries',
+  imports: [
+    AsyncPipe,
+    ButtonModule,
+    CommonModule,
+    DataViewModule,
+    CarCardComponent,
+    NgIconComponent,
+    ReactiveFormsModule,
+    RouterLink,
+    ScrollTopModule,
+    SelectModule,
+    SkeletonModule,
+  ],
+  providers: [
+    provideIcons({
+      matAddSharp,
+    }),
+  ],
+  templateUrl: './cars.component.html',
+  styleUrl: './cars.component.scss'
+})
+export class CarsComponent {
+  private readonly carClient = inject(CarClient);
+  private readonly messageService = inject(MessageService);
+
+  protected readonly nonDeletedCars$: Observable<Car[]>;
+
+  protected readonly skeletonsIterationSource = Array(10).fill(0);
+
+  private readonly deletedCars$ = new BehaviorSubject(<string[]>[]);
+
+  constructor() {
+    const cars$ = this.carClient.getAll()
+      .pipe(
+        map(response => response.cars),
+        map((cars) => cars
+          .sort((a, b) => a.name.localeCompare(b.name))),
+      );
+
+    this.nonDeletedCars$ = combineLatest([
+      cars$,
+      this.deletedCars$
+    ])
+      .pipe(
+        takeUntilDestroyed(),
+        map(([cars, deletedCars]) => cars.filter(car => !deletedCars.includes(car.id))),
+        catchError((error) => this.handleGetCarsError(error)),
+      );
+  }
+
+  onCarDeleted(entry: Car): void {
+    this.deletedCars$.next([...this.deletedCars$.value, entry.id]);
+    this.messageService.add({
+      severity: 'success',
+      summary: 'Auto gelöscht',
+      detail: 'Das Auto wurde erfolgreich gelöscht.',
+    });
+  }
+
+  private handleGetCarsError(error: unknown): Observable<never> {
+    if (!(error instanceof HttpErrorResponse)) {
+      return throwError(() => new Error('An unexpected error occurred'));
+    }
+
+    switch (true) {
+      case error.status >= 500 && error.status <= 599:
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Serverfehler',
+          detail:
+            'Beim Abrufen der Einträge ist ein Fehler aufgetreten. Bitte versuche es erneut.',
+        });
+        break;
+      default:
+        console.error(error);
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Unerwarteter Fehler',
+          detail:
+            'Beim Abrufen der Einträge hat der Server eine unerwartete Antwort zurückgegeben.',
+        });
+        break;
+    }
+
+    return EMPTY;
+  }
+}

src/Vegasco-Web/src/app/modules/cars/cars/components/car-card/car-card.component.html

@@ -0,0 +1,22 @@
+<p-confirmDialog></p-confirmDialog>
+
+<div class="flex rounded-border shadow">
+  <div class="grow p-4 pos-relative edit-button" (click)="navigateToEdit()" role="button"
+    aria-roledescription="Bearbeite diesen Eintrag">
+    <div class="grid grid-cols-4 gap-4">
+
+      <div class="col-span-4 sm:col-span-2 md:col-span-1 flex my-auto items-center justify-center">
+        <div class="flex gap-2 items-center">
+          <ng-icon name="matDirectionsCarOutline" />
+          <div>{{ car().name }}</div>
+        </div>
+      </div>
+    </div>
+  </div>
+  <div class="bg-red-500 text-white rounded-r text-center flex flex-col justify-center">
+    <button type="button" title="Löschen" class="reset cursor-pointer primary-color-text p-4 h-full rounded-r"
+      (click)="confirmDeleteCar()">
+      <ng-icon name="matDeleteSharp"></ng-icon>
+    </button>
+  </div>
+</div>

src/Vegasco-Web/src/app/modules/cars/cars/components/car-card/car-card.component.scss

@@ -0,0 +1,3 @@
+.edit-button {
+    cursor: pointer;
+}

src/Vegasco-Web/src/app/modules/cars/cars/components/car-card/car-card.component.ts

@@ -0,0 +1,116 @@
+import { HttpErrorResponse } from '@angular/common/http';
+import { Component, DestroyRef, inject, input, output } from '@angular/core';
+import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
+import { NgIconComponent, provideIcons } from '@ng-icons/core';
+import {
+  matDirectionsCarOutline,
+} from '@ng-icons/material-icons/outline';
+import {
+  matDeleteSharp
+} from '@ng-icons/material-icons/sharp';
+import { CarClient } from '@vegasco-web/api/cars/car-client';
+import { RoutingService } from '@vegasco-web/services/routing.service';
+import { ConfirmationService, MessageService } from 'primeng/api';
+import { ButtonModule } from 'primeng/button';
+import { CardModule } from 'primeng/card';
+import { ConfirmDialogModule } from 'primeng/confirmdialog';
+import { catchError, EMPTY, Observable, tap, throwError } from 'rxjs';
+
+@Component({
+  selector: 'app-car-card',
+  imports: [
+    ButtonModule,
+    CardModule,
+    ConfirmDialogModule,
+    NgIconComponent,
+  ],
+  providers: [
+    provideIcons({
+      matDeleteSharp,
+      matDirectionsCarOutline,
+    }),
+    ConfirmationService,
+  ],
+  templateUrl: './car-card.component.html',
+  styleUrl: './car-card.component.scss'
+})
+export class CarCardComponent {
+  readonly car = input.required<Car>();
+
+  readonly carDeleted = output<Car>();
+
+  private readonly routingService = inject(RoutingService);
+  private readonly carClient = inject(CarClient);
+  private readonly messageService = inject(MessageService);
+  private readonly confirmationService = inject(ConfirmationService);
+
+  private readonly destroyRef = inject(DestroyRef);
+
+  async navigateToEdit(): Promise<void> {
+    await this.routingService.navigateToEditCar(this.car().id);
+  }
+
+  confirmDeleteCar(): void {
+    this.confirmationService.confirm({
+      closeOnEscape: true,
+      dismissableMask: true,
+      header: 'Bist du sicher?',
+      message: `Möchtest du das Auto "${this.car().name}" wirklich löschen?`,
+      acceptButtonProps: {
+        label: 'Löschen',
+        severity: 'danger',
+      },
+      rejectButtonProps: {
+        label: 'Abbrechen',
+        outlined: true,
+      },
+      accept: () => this.deleteCar(),
+    });
+  }
+
+  deleteCar(): void {
+    this.carClient.delete(this.car().id)
+      .pipe(
+        takeUntilDestroyed(this.destroyRef),
+        tap(() => this.carDeleted.emit(this.car())),
+        catchError((error) => this.handleError(error)),
+      )
+      .subscribe();
+  }
+
+  private handleError(error: unknown): Observable<never> {
+    if (!(error instanceof HttpErrorResponse)) {
+      return throwError(() => error);
+    }
+
+    switch (true) {
+      case error.status >= 500 && error.status <= 599:
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Serverfehler',
+          detail:
+            'Beim Löschen des Autos ist ein Fehler aufgetreten. Bitte versuche es erneut.',
+        });
+        break;
+      case error.status === 400:
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Clientfehler',
+          detail:
+            'Die Anwendung scheint falsche Daten an den Server zu senden.',
+        });
+        break;
+      default:
+        console.error(error);
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Unerwarteter Fehler',
+          detail:
+            'Beim Löschen des Autos hat der Server eine unerwartete Antwort zurückgegeben.',
+        });
+        break;
+    }
+
+    return EMPTY;
+  }
+}

src/Vegasco-Web/src/app/modules/cars/edit-car/components/required-marker.component.html

@@ -0,0 +1 @@
+<span class="required">*</span>

src/Vegasco-Web/src/app/modules/cars/edit-car/components/required-marker.component.scss

@@ -0,0 +1,3 @@
+.required {
+    color: red;
+}

src/Vegasco-Web/src/app/modules/cars/edit-car/components/required-marker.component.ts

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

src/Vegasco-Web/src/app/modules/cars/edit-car/edit-car.component.html

@@ -0,0 +1,31 @@
+@if (!isCarDataLoaded()) {
+  <div class="flex flex-col gap-6">
+    <p-skeleton height="3.5rem" />
+    <div class="flex flex-row gap-4">
+      <p-skeleton height="3.5rem" width="10rem" />
+      <p-skeleton height="3.5rem" width="10rem" />
+    </div>
+  </div>
+} @else {
+  <form [formGroup]="formGroup" class="flex flex-col gap-4" (ngSubmit)="onSubmit()">
+
+    <div class="flex flex-col gap-2">
+      <label [for]="formFieldNames.name">
+        Name
+        <app-required-marker />
+      </label>
+      <input 
+          id="name"
+          placeholder="Name eingeben"
+          type="text"
+          pInputText
+          [formControlName]="formFieldNames.name" />
+    </div>
+
+    <div class="flex gap-2">
+      <p-button type="button" label="Abbrechen" (click)="navigateToOverviewPage()" severity="warn" />
+      <p-button type="submit" label="Abschicken" severity="success" [disabled]="formGroup.invalid" />
+    </div>
+
+  </form>
+}

src/Vegasco-Web/src/app/modules/cars/edit-car/edit-car.component.ts

@@ -0,0 +1,217 @@
+import { HttpErrorResponse } from '@angular/common/http';
+import { Component, DestroyRef, inject, input, OnInit, signal } from '@angular/core';
+import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
+import { FormControl, FormGroup, ReactiveFormsModule, Validators } from '@angular/forms';
+import { CarClient } from '@vegasco-web/api/cars/car-client';
+import { RoutingService } from '@vegasco-web/services/routing.service';
+import { MessageService } from 'primeng/api';
+import { ButtonModule } from 'primeng/button';
+import { ChipModule } from 'primeng/chip';
+import { DatePickerModule } from 'primeng/datepicker';
+import { FloatLabelModule } from 'primeng/floatlabel';
+import { InputGroupModule } from 'primeng/inputgroup';
+import { InputGroupAddonModule } from 'primeng/inputgroupaddon';
+import { InputNumberModule } from 'primeng/inputnumber';
+import { InputTextModule } from 'primeng/inputtext';
+import { MultiSelectModule } from 'primeng/multiselect';
+import { SelectModule } from 'primeng/select';
+import { SkeletonModule } from 'primeng/skeleton';
+import { catchError, EMPTY, Observable, switchMap, tap, throwError } from 'rxjs';
+import { RequiredMarkerComponent } from './components/required-marker.component';
+
+@Component({
+  selector: 'app-edit-entry',
+  imports: [
+    ButtonModule,
+    ChipModule,
+    DatePickerModule,
+    FloatLabelModule,
+    InputGroupAddonModule,
+    InputGroupModule,
+    InputNumberModule,
+    InputTextModule,
+    MultiSelectModule,
+    ReactiveFormsModule,
+    RequiredMarkerComponent,
+    SelectModule,
+    SkeletonModule,
+  ],
+  templateUrl: './edit-car.component.html',
+  styleUrl: './edit-car.component.scss'
+})
+export class EditCarComponent implements OnInit {
+  private readonly carClient = inject(CarClient);
+  private readonly routingService = inject(RoutingService);
+  private readonly destroyRef = inject(DestroyRef);
+  private readonly messageService = inject(MessageService);
+
+  protected readonly id = input<string | undefined>(undefined);
+
+  protected readonly today = new Date();
+
+  protected readonly formFieldNames = {
+    name: 'name',
+  } as const;
+
+  protected readonly formGroup = new FormGroup({
+    [this.formFieldNames.name]: new FormControl<string | null>({ value: null, disabled: true }, [Validators.required]),
+  });
+
+  protected readonly isCarDataLoaded = signal(false);
+
+  ngOnInit(): void {
+    this.loadEntryDetailsAndEnableControls();
+  }
+
+  private loadEntryDetailsAndEnableControls() {
+    const carId = this.id();
+
+    if (carId === undefined || carId === null) {
+      this.enableFormControls();
+      this.isCarDataLoaded.set(true);
+      return;
+    }
+
+    this.carClient
+      .getSingle(carId)
+      .pipe(
+        takeUntilDestroyed(this.destroyRef),
+        catchError((error) => this.handleGetError(error)),
+        tap((car) => {
+          this.formGroup.patchValue({
+            [this.formFieldNames.name]: car.name,
+          });
+        }),
+        tap(() => {
+          this.enableFormControls();
+          this.isCarDataLoaded.set(true);
+        }),
+      )
+      .subscribe();
+
+  }
+
+  private enableFormControls(): void {
+    for (const controlName of Object.values(this.formFieldNames)) {
+      const control = this.formGroup.get(controlName);
+      if (control) {
+        control.enable();
+      } else {
+        console.warn(`Form control '${controlName}' not found.`);
+      }
+    }
+  }
+
+  async navigateToOverviewPage(): Promise<void> {
+    await this.routingService.navigateToCars();
+  }
+
+  onSubmit(): void {
+    if (this.formGroup.invalid) {
+      this.formGroup.markAllAsTouched();
+      return;
+    }
+
+    var carId = this.id();
+    if (carId === undefined || carId === null) {
+      this.createCar();
+      return;
+    }
+
+    this.updateCar(carId);
+  }
+
+  private getFormData() {
+    return {
+      name: this.formGroup.controls[this.formFieldNames.name].value!,
+    };
+  }
+
+  createCar() {
+    var request: CreateCarRequest = this.getFormData();
+    this.carClient.create(request)
+      .pipe(
+        takeUntilDestroyed(this.destroyRef),
+        catchError((error) => this.handleCreateOrUpdateError(error, false)),
+        switchMap(() => this.routingService.navigateToCars())
+      )
+      .subscribe();
+  }
+
+  updateCar(id: string) {
+    var request: UpdateCarRequest = this.getFormData();
+    this.carClient.update(id, request)
+      .pipe(
+        takeUntilDestroyed(this.destroyRef),
+        catchError((error) => this.handleCreateOrUpdateError(error, true)),
+        switchMap(() => this.routingService.navigateToCars())
+      )
+      .subscribe();
+  }
+
+  private handleGetError(error: unknown): Observable<never> {
+    if (!(error instanceof HttpErrorResponse)) {
+      return throwError(() => error);
+    }
+
+    switch (true) {
+      case error.status >= 500 && error.status <= 599:
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Serverfehler',
+          detail:
+            'Beim Abrufen des Autos ist ein Fehler aufgetreten. Bitte versuche es erneut.',
+        });
+        break;
+      default:
+        console.error(error);
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Unerwarteter Fehler',
+          detail:
+            'Beim Abrufen des Autos hat der Server eine unerwartete Antwort zurückgegeben.',
+        });
+        break;
+    }
+
+    return EMPTY;
+  }
+
+  private handleCreateOrUpdateError(error: unknown, isUpdate: boolean): Observable<never> {
+    if (!(error instanceof HttpErrorResponse)) {
+      return throwError(() => error);
+    }
+
+    const action = isUpdate ? 'Aktualisieren' : 'Erstellen';
+
+    switch (true) {
+      case error.status >= 500 && error.status <= 599:
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Serverfehler',
+          detail:
+            `Beim ${action} des Eintrags ist ein Fehler aufgetreten. Bitte versuche es erneut.`,
+        });
+        break;
+      case error.status === 400:
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Clientfehler',
+          detail:
+            'Die Anwendung scheint falsche Daten an den Server zu senden.',
+        });
+        break;
+      default:
+        console.error(error);
+        this.messageService.add({
+          severity: 'error',
+          summary: 'Unerwarteter Fehler',
+          detail:
+            `Beim ${action} des Eintrags hat der Server eine unerwartete Antwort zurückgegeben.`,
+        });
+        break;
+    }
+
+    return EMPTY;
+  }
+}

src/Vegasco-Web/src/app/modules/entries/edit-entry/edit-entry.component.ts

@@ -169,6 +169,11 @@ export class EditEntryComponent implements OnInit {
   }
 
   onSubmit(): void {
+    if (this.formGroup.invalid) {
+      this.formGroup.markAllAsTouched();
+      return;
+    }
+
     var entryId = this.id();
     if (entryId === undefined || entryId === null) {
       this.createEntry();

src/Vegasco-Web/src/app/services/routing.service.ts

@@ -18,4 +18,16 @@ export class RoutingService {
     async navigateToCreateEntry(): Promise<void> {
         await this.router.navigate(['entries', 'create']);
     }
+
+    async navigateToCars(): Promise<void> {
+        await this.router.navigateByUrl('/cars');
+    }
+
+    async navigateToEditCar(entryId: string): Promise<void> {
+        await this.router.navigate(['cars', 'edit', entryId]);
+    }
+
+    async navigateToCreateCar(): Promise<void> {
+        await this.router.navigate(['cars', 'create']);
+    }
 }