Add login and logout routes

src/app/app.routes.ts

@@ -1,11 +1,18 @@
-import { Routes } from '@angular/router';
+import { inject } from '@angular/core';
+import { CanActivateFn, Routes } from '@angular/router';
+import { AuthComponent } from './auth/auth.component';
+import { LoginService } from './login.service';
 import { RecipeAddComponent } from './recipe-add/recipe-add.component';
 import { RecipeComponent } from './recipe/recipe.component';
 import { RecipesComponent } from './recipes/recipes.component';
 
+const LoggedGuard: CanActivateFn = () => inject(LoginService).isLoggedIn();
 export const routes: Routes = [
   { path: 'recipes', component: RecipesComponent },
   { path: 'recipe/add', component: RecipeAddComponent },
   { path: 'recipe/:id', component: RecipeComponent },
   { path: 'recipe/:id/edit', component: RecipeAddComponent },
+  { path: 'ingredients', component: RecipesComponent, canActivate: [LoggedGuard] },
+  { path: 'login', component: AuthComponent },
+  { path: 'logout', component: AuthComponent, data: { registering: false }, canActivate: [LoggedGuard] },
 ];

src/app/auth/auth.component.html

@@ -0,0 +1,19 @@
+<mat-card>
+    <mat-card-title>Login</mat-card-title>
+    <mat-card-content>
+        <form [formGroup]="loginForm" (ngSubmit)="onSubmit()">
+            <div>
+                <mat-form-field>
+                    <input mat-input type="text" matInput placeholder="Username" formControlName="login">
+                </mat-form-field>
+            </div>
+
+            <div>
+                <mat-form-field>
+                    <input mat-input type="password" matInput placeholder="Password" formControlName="password">
+                </mat-form-field>
+            </div>
+            <button mat-button>Login</button>
+        </form>
+    </mat-card-content>
+</mat-card>

src/app/auth/auth.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { AuthComponent } from './auth.component';
+
+describe('AuthComponent', () => {
+  let component: AuthComponent;
+  let fixture: ComponentFixture<AuthComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [AuthComponent],
+    })
+      .compileComponents();
+
+    fixture = TestBed.createComponent(AuthComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/auth/auth.component.ts

@@ -0,0 +1,48 @@
+import { Component } from '@angular/core';
+import { FormBuilder, ReactiveFormsModule } from '@angular/forms';
+import { MatCard, MatCardContent, MatCardTitle } from '@angular/material/card';
+import { MatFormField } from '@angular/material/form-field';
+import { MatInput } from '@angular/material/input';
+import { ActivatedRoute, Router } from '@angular/router';
+import { LoginService } from '../login.service';
+
+@Component({
+  selector: 'app-auth',
+  standalone: true,
+  imports: [ReactiveFormsModule, MatCard, MatCardTitle, MatCardContent, MatFormField, MatInput],
+  templateUrl: './auth.component.html',
+})
+export class AuthComponent {
+  loginForm = this.formBuilder.group({
+    login: '',
+    password: '',
+  });
+
+  constructor(
+    private loginService: LoginService,
+    private formBuilder: FormBuilder,
+    private router: Router,
+    activatedRoute: ActivatedRoute,
+  ) {
+    activatedRoute.data.subscribe(({ registering }) => {
+      if (!registering) {
+        loginService.logOut();
+      }
+    });
+  }
+
+  onSubmit(): void {
+    if (this.loginForm.invalid) {
+      return;
+    }
+    const value = this.loginForm.value;
+    this.loginService.logIn(value.login!, value.password!)
+      .then((logged) => {
+        if (logged) {
+          this.router.navigateByUrl('/ingredients');
+        } else {
+          alert('Invalid login!');
+        }
+      });
+  }
+}

src/app/login.service.ts

@@ -0,0 +1,56 @@
+import { Injectable } from '@angular/core';
+import { User } from '../cookbook/type';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class LoginService {
+  async logIn(username: string, password: string): Promise<boolean> {
+    const res = await fetch('https://dummyjson.com/user/login', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'Accept': 'application/json',
+      },
+      body: JSON.stringify({
+        username,
+        password,
+        expiresInMins: 30,
+      }),
+    });
+    if (res.status !== 200) {
+      return false;
+    }
+    const user: User = await res.json();
+    localStorage.setItem('user', JSON.stringify(user));
+    return true;
+  }
+
+  me(): Promise<User | null> {
+    const token = this.currentToken();
+    if (!token) {
+      return Promise.resolve(null);
+    }
+    return fetch('http://dummyjson.com/user/me', {
+      method: 'GET',
+      headers: {
+        'Authorization': `Bearer ${token}`,
+      },
+    })
+      .then(res => res.json());
+  }
+
+  isLoggedIn(): boolean {
+    return this.currentToken() !== null;
+  }
+
+  currentToken(): string | null {
+    const json = localStorage?.getItem('user');
+    if (!json) return null;
+    return JSON.parse(json).token;
+  }
+
+  logOut(): void {
+    localStorage?.removeItem('user');
+  }
+}

src/app/recipe-add/recipe-add.component.ts

@@ -1,18 +1,27 @@
 import { Component, Input } from '@angular/core';
 import { FormBuilder, FormsModule, ReactiveFormsModule, Validators } from '@angular/forms';
-import { Router } from '@angular/router';
-import { Ingredient, IngredientEntry, Recipe } from '../../cookbook/type';
-import { RecipeService } from '../recipe.service';
-import { MatInputModule } from '@angular/material/input';
-import { MatFormFieldModule } from '@angular/material/form-field';
 import { MatButton } from '@angular/material/button';
 import { MatOption } from '@angular/material/core';
+import { MatFormFieldModule } from '@angular/material/form-field';
+import { MatInputModule } from '@angular/material/input';
 import { MatSelect } from '@angular/material/select';
+import { Router } from '@angular/router';
+import { Ingredient, IngredientEntry, Recipe } from '../../cookbook/type';
+import { RecipeService } from '../recipe.service';
 
 @Component({
   selector: 'app-recipe-add',
   standalone: true,
-  imports: [ReactiveFormsModule, FormsModule, MatFormFieldModule, MatOption, MatSelect, MatInputModule, MatButton, MatFormFieldModule],
+  imports: [
+    ReactiveFormsModule,
+    FormsModule,
+    MatFormFieldModule,
+    MatOption,
+    MatSelect,
+    MatInputModule,
+    MatButton,
+    MatFormFieldModule,
+  ],
   templateUrl: './recipe-add.component.html',
 })
 export class RecipeAddComponent {
@@ -28,7 +37,7 @@ export class RecipeAddComponent {
 
   selectedFilename: string = '';
   getIngredient(n: number): Ingredient {
-    return this.ingredients.find(v => v.id === n)!
+    return this.ingredients.find(v => v.id === n)!;
   }
 
   #recipeId: number = -1;
@@ -98,9 +107,9 @@ export class RecipeAddComponent {
       const reader = new FileReader();
       reader.onload = (event) => {
         this.createForm.patchValue({
-          image: event.target!.result?.toString()
+          image: event.target!.result?.toString(),
         });
-      }
+      };
       reader.readAsDataURL(file);
     }
   }

src/app/recipe.service.ts

@@ -6,10 +6,16 @@ import { Ingredient, Recipe } from '../cookbook/type';
 })
 export class RecipeService {
   #recipes: Recipe[] = [
-    { id: 0, name: 'crepe1', description: 'La meilleure recette de pâte à crêpes', image: '', ingredients: [
-      {idIngredient:1,idRecipe:0,quantity:10},
-      {idIngredient:2,idRecipe:0,quantity:15}
-    ] },
+    {
+      id: 0,
+      name: 'crepe1',
+      description: 'La meilleure recette de pâte à crêpes',
+      image: '',
+      ingredients: [
+        { idIngredient: 1, idRecipe: 0, quantity: 10 },
+        { idIngredient: 2, idRecipe: 0, quantity: 15 },
+      ],
+    },
     { id: 1, name: 'crepe2', description: 'La meilleure recette de pâte à crêpes', image: '', ingredients: [] },
     { id: 2, name: 'crepe3', description: 'La meilleure recette de pâte à crêpes', image: '', ingredients: [] },
     { id: 3, name: 'crepe4', description: 'La meilleure recette de pâte à crêpes', image: '', ingredients: [] },
@@ -26,9 +32,9 @@ export class RecipeService {
   ];
 
   #ingredients: Ingredient[] = [
-    { id:1, name:'Sucre'},
-    { id:2, name:'Farine'}
-  ]
+    { id: 1, name: 'Sucre' },
+    { id: 2, name: 'Farine' },
+  ];
 
   getAll(): Recipe[] {
     return this.#recipes;

src/app/recipe/recipe.component.ts

@@ -1,5 +1,5 @@
-import { Component, Input } from '@angular/core';
 import { CommonModule } from '@angular/common';
+import { Component, Input } from '@angular/core';
 import { Recipe } from '../../cookbook/type';
 import { RecipeService } from '../recipe.service';
 import { MatIconModule } from '@angular/material/icon';

src/cookbook/type.ts

@@ -16,3 +16,9 @@ export type IngredientEntry = {
   idRecipe: number;
   quantity: number;
 };
+
+export type User = {
+  username: string;
+  email: string;
+  token: string;
+};