function: authentication with firebase

src/app/app-routing.module.ts

@@ -1,8 +1,12 @@
 import { NgModule } from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
+import { PhoneBookComponent } from './components/phone-book/phone-book.component';
+import { SignInComponent } from './components/sign-in/sign-in.component';
+import { AuthGuard } from './shared/guard/auth.guard';
 
 const routes: Routes = [
-  
+  { path: '', component: PhoneBookComponent,  canActivate: [AuthGuard] },
+  { path: 'sign-in', component: SignInComponent },
 ];
 
 @NgModule({

src/app/app.component.html

@@ -1,30 +1,10 @@
 <mat-toolbar color="primary">
   <span>Phone Book</span>
+  <span class="spacer"></span>
+  <button *ngIf="authService.isLoggedIn" mat-icon-button aria-label="Logout" (click)="logout()">
+    <mat-icon>logout</mat-icon>
+  </button>
 </mat-toolbar>
 <div class="content-wrapper">
-  <button class="new-record" (click)="newRecord()" mat-button>
-    <mat-icon>add</mat-icon> Add Record
-  </button>
-  <mat-form-field appearance="fill">
-    <mat-icon matPrefix>search</mat-icon>
-    <mat-label>Search</mat-label>
-    <input matInput [value]="searchValue" (input)="search($event)" />
-  </mat-form-field>
-
-  <div class="container-wrapper">
-    <div class="container">
-      <mat-card>
-        <app-record
-          *ngFor="let record of filteredPhoneBook()"
-          [record]="record"
-          (edit)="editRecord($event)"
-          (delete)="deleteRecord($event)"
-        ></app-record>
-        <p class="empty-label" *ngIf="filteredPhoneBook().length === 0">
-          No results
-        </p>
-      </mat-card>
-    </div>
-  </div>
-</div>
   <router-outlet></router-outlet>
+</div>

src/app/app.component.less

@@ -6,38 +6,6 @@ mat-toolbar {
   margin-left: 10px;
 }
 
-  .content-wrapper {
-    max-width: 1400px;
-    margin: auto;
-  }
-  
-  .container-wrapper {
-    display: flex;
-    justify-content: space-around;
-  }
-  
-  .container {
-    width: 100%;
-    margin: 0 25px 25px 0;
-  }
-  
-  .list {
-    border: solid 1px #ccc;
-    min-height: 60px;
-    border-radius: 4px;
-  }
-  
-  .new-record {
-    margin-bottom: 30px;
-  }
-  
-  .empty-label {
-    font-size: 2em;
-    padding-top: 10px;
-    text-align: center;
-    opacity: 0.2;
-  }
-
-  .content-wrapper > *{
-    margin: 4px 4px 0px;
+.spacer {
+  flex: 1 1 auto;
 }

src/app/app.component.ts

@@ -1,12 +1,5 @@
 import { Component } from '@angular/core';
-import { Record } from './record/record';
-import { MatDialog } from '@angular/material/dialog';
-import {
-  RecordDialogComponent,
-  RecordDialogResult,
-} from './record-dialog/record-dialog.component';
-import { AngularFirestore, Query } from '@angular/fire/compat/firestore';
-import { Observable } from 'rxjs';
+import { AuthService } from './shared/services/auth.service';
 
 @Component({
   selector: 'app-root',
@@ -15,72 +8,11 @@ import { Observable } from 'rxjs';
 })
 export class AppComponent {
   title = 'PhoneBook';
-  phoneBook = this.store
-    .collection('phoneBook')
-    .valueChanges({ idField: 'id' }) as Observable<Record[]>;
-  searchValue = '';
-  phoneBookLocal : Record[] = [];
-  phoneBookObserver = {
-    next: (x: Record[]) => {
-      this.phoneBookLocal = x;
-    },
-    error: (err: String) => console.error('Observer got an error: ' + err),
-    complete: () => console.log('Observer got a complete notification'),
-  };
+  constructor(public authService : AuthService){
 
-  constructor(private dialog: MatDialog, private store: AngularFirestore) {
-    this.phoneBook.subscribe(this.phoneBookObserver);
   }
 
-  newRecord(): void {
-    const dialogRef = this.dialog.open(RecordDialogComponent, {
-      width: '270px',
-      data: {
-        record: {},
-      },
-    });
-    dialogRef
-      .afterClosed()
-      .subscribe((result: RecordDialogResult | undefined) => {
-        if (!result) {
-          return;
-        }
-        this.store.collection('phoneBook').add(result.record);
-      });
-  }
-
-  editRecord(record: Record): void {
-    const dialogRef = this.dialog.open(RecordDialogComponent, {
-      width: '270px',
-      data: {
-        record: {
-          name: record.name,
-          phoneNumber: record.phoneNumber,
-        },
-      },
-    });
-    dialogRef
-      .afterClosed()
-      .subscribe((result: RecordDialogResult | undefined) => {
-        if (!result) {
-          return;
-        }
-        this.store.collection('phoneBook').doc(record.id).update(result.record);
-      });
-  }
-
-  deleteRecord(record: Record): void {
-    this.store.collection('phoneBook').doc(record.id).delete();
-  }
-
-  search(event: Event): void {
-    this.searchValue = (event.target as HTMLInputElement).value;
-  }
-
-  filteredPhoneBook(): Record[]{
-    if(this.searchValue == "")
-      return this.phoneBookLocal;
-
-    return this.phoneBookLocal.filter(p => p.name.includes(this.searchValue) || p.phoneNumber.includes(this.searchValue));
+  logout(): void {
+    this.authService.logout();
   }
 }

src/app/app.module.ts

@@ -6,24 +6,31 @@ import { AppComponent } from './app.component';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 
 import { MatToolbarModule } from '@angular/material/toolbar';
-import { RecordComponent } from './record/record.component';
+import { RecordComponent } from './components/record/record.component';
 import { MatCardModule } from '@angular/material/card';
 import { MatButtonModule } from '@angular/material/button';
 import { MatDialogModule } from '@angular/material/dialog';
-import { RecordDialogComponent } from './record-dialog/record-dialog.component';
+import { RecordDialogComponent } from './components/record-dialog/record-dialog.component';
 import { MatInputModule } from '@angular/material/input';
 import { FormsModule } from '@angular/forms';
 import { MatIconModule } from '@angular/material/icon';
 import { MatGridListModule } from '@angular/material/grid-list';
+
 import { environment } from 'src/environments/environment';
 import { AngularFireModule } from '@angular/fire/compat';
 import { AngularFirestoreModule } from '@angular/fire/compat/firestore';
+import { AngularFireAuthModule } from "@angular/fire/compat/auth";
+import { SignInComponent } from './components/sign-in/sign-in.component';
+import { PhoneBookComponent } from './components/phone-book/phone-book.component';
+import { AuthService } from './shared/services/auth.service';
 
 @NgModule({
   declarations: [
     AppComponent,
     RecordComponent,
-    RecordDialogComponent
+    RecordDialogComponent,
+    SignInComponent,
+    PhoneBookComponent
   ],
   imports: [
     BrowserModule,
@@ -38,9 +45,10 @@ import { AngularFirestoreModule } from '@angular/fire/compat/firestore';
     MatIconModule,
     MatGridListModule,
     AngularFireModule.initializeApp(environment.firebase),
-    AngularFirestoreModule
+    AngularFirestoreModule,
+    AngularFireAuthModule
   ],
-  providers: [],
+  providers: [AuthService],
   bootstrap: [AppComponent]
 })
 export class AppModule { }

src/app/components/phone-book/phone-book.component.html

@@ -0,0 +1,24 @@
+<button class="new-record" (click)="newRecord()" mat-button>
+  <mat-icon>add</mat-icon> Add Record
+</button>
+<mat-form-field appearance="fill">
+  <mat-icon matPrefix>search</mat-icon>
+  <mat-label>Search</mat-label>
+  <input matInput [value]="searchValue" (input)="search($event)" />
+</mat-form-field>
+
+<div class="container-wrapper">
+  <div class="container">
+    <mat-card>
+      <app-record
+        *ngFor="let record of filteredPhoneBook()"
+        [record]="record"
+        (edit)="editRecord($event)"
+        (delete)="deleteRecord($event)"
+      ></app-record>
+      <p class="empty-label" *ngIf="filteredPhoneBook().length === 0">
+        No results
+      </p>
+    </mat-card>
+  </div>
+</div>

src/app/components/phone-book/phone-book.component.less

@@ -0,0 +1,35 @@
+.content-wrapper {
+  max-width: 1400px;
+  margin: auto;
+}
+
+.container-wrapper {
+  display: flex;
+  justify-content: space-around;
+}
+
+.container {
+  width: 100%;
+  margin: 0 25px 25px 0;
+}
+
+.list {
+  border: solid 1px #ccc;
+  min-height: 60px;
+  border-radius: 4px;
+}
+
+.new-record {
+  margin-bottom: 30px;
+}
+
+.empty-label {
+  font-size: 2em;
+  padding-top: 10px;
+  text-align: center;
+  opacity: 0.2;
+}
+
+.content-wrapper > * {
+  margin: 4px 4px 0px;
+}

src/app/components/phone-book/phone-book.component.spec.ts

@@ -0,0 +1,25 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { PhoneBookComponent } from './phone-book.component';
+
+describe('PhoneBookComponent', () => {
+  let component: PhoneBookComponent;
+  let fixture: ComponentFixture<PhoneBookComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ PhoneBookComponent ]
+    })
+    .compileComponents();
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(PhoneBookComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/components/phone-book/phone-book.component.ts

@@ -0,0 +1,88 @@
+import { Component } from '@angular/core';
+import { Record } from '../record/record';
+import { MatDialog } from '@angular/material/dialog';
+import {
+  RecordDialogComponent,
+  RecordDialogResult,
+} from '../record-dialog/record-dialog.component';
+import { AngularFirestore } from '@angular/fire/compat/firestore';
+import { Observable } from 'rxjs';
+
+@Component({
+  selector: 'app-phone-book',
+  templateUrl: './phone-book.component.html',
+  styleUrls: ['./phone-book.component.less'],
+})
+export class PhoneBookComponent {
+  phoneBook = this.store
+    .collection('phoneBook')
+    .valueChanges({ idField: 'id' }) as Observable<Record[]>;
+  searchValue = '';
+  phoneBookLocal: Record[] = [];
+  phoneBookObserver = {
+    next: (x: Record[]) => {
+      this.phoneBookLocal = x;
+    },
+    error: (err: String) => console.error('Observer got an error: ' + err),
+    complete: () => console.log('Observer got a complete notification'),
+  };
+
+  constructor(private dialog: MatDialog, private store: AngularFirestore) {
+    this.phoneBook.subscribe(this.phoneBookObserver);
+  }
+
+  newRecord(): void {
+    const dialogRef = this.dialog.open(RecordDialogComponent, {
+      width: '270px',
+      data: {
+        record: {},
+      },
+    });
+    dialogRef
+      .afterClosed()
+      .subscribe((result: RecordDialogResult | undefined) => {
+        if (!result) {
+          return;
+        }
+        this.store.collection('phoneBook').add(result.record);
+      });
+  }
+
+  editRecord(record: Record): void {
+    const dialogRef = this.dialog.open(RecordDialogComponent, {
+      width: '270px',
+      data: {
+        record: {
+          name: record.name,
+          phoneNumber: record.phoneNumber,
+        },
+      },
+    });
+    dialogRef
+      .afterClosed()
+      .subscribe((result: RecordDialogResult | undefined) => {
+        if (!result) {
+          return;
+        }
+        this.store.collection('phoneBook').doc(record.id).update(result.record);
+      });
+  }
+
+  deleteRecord(record: Record): void {
+    this.store.collection('phoneBook').doc(record.id).delete();
+  }
+
+  search(event: Event): void {
+    this.searchValue = (event.target as HTMLInputElement).value;
+  }
+
+  filteredPhoneBook(): Record[] {
+    if (this.searchValue == '') return this.phoneBookLocal;
+
+    return this.phoneBookLocal.filter(
+      (p) =>
+        p.name.includes(this.searchValue) ||
+        p.phoneNumber.includes(this.searchValue)
+    );
+  }
+}

src/app/components/sign-in/formData.ts

@@ -0,0 +1,4 @@
+export interface formData{
+    email: string;
+    password: string;
+}

src/app/components/sign-in/sign-in.component.html

@@ -0,0 +1,15 @@
+<div class="container">
+  <mat-card>
+      <mat-form-field appearance="fill">
+        <mat-label>Email</mat-label>
+        <input matInput cdkFocusInitial [(ngModel)]="data.email" type="text" />
+      </mat-form-field>
+
+      <mat-form-field appearance="fill">
+        <mat-label>Password</mat-label>
+        <input matInput [(ngModel)]="data.password" type="password" />
+      </mat-form-field>
+
+      <button mat-button (click)="login()">Sign in</button>
+  </mat-card>
+</div>

src/app/components/sign-in/sign-in.component.less

@@ -0,0 +1,9 @@
+:host {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+  }
+
+  mat-card > *{
+      display: block;
+  }

src/app/components/sign-in/sign-in.component.spec.ts

@@ -0,0 +1,25 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { SignInComponent } from './sign-in.component';
+
+describe('SignInComponent', () => {
+  let component: SignInComponent;
+  let fixture: ComponentFixture<SignInComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ SignInComponent ]
+    })
+    .compileComponents();
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(SignInComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/components/sign-in/sign-in.component.ts

@@ -0,0 +1,30 @@
+import { Component, OnInit, Inject } from '@angular/core';
+import { AuthService } from '../../shared/services/auth.service';
+import { formData } from './formData';
+
+@Component({
+  selector: 'app-sign-in',
+  templateUrl: './sign-in.component.html',
+  styleUrls: ['./sign-in.component.less']
+})
+export class SignInComponent implements OnInit {
+
+  data: formData = {
+    email: "",
+    password: ""
+  };
+
+
+  constructor(private authService: AuthService) {}
+
+  ngOnInit(): void {
+  }
+
+  login() {
+    this.authService.login(
+      this.data.email,
+      this.data.password
+    );
+  }
+
+}

src/app/shared/guard/auth.guard.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { AuthGuard } from './auth.guard';
+
+describe('AuthGuard', () => {
+  let guard: AuthGuard;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    guard = TestBed.inject(AuthGuard);
+  });
+
+  it('should be created', () => {
+    expect(guard).toBeTruthy();
+  });
+});

src/app/shared/guard/auth.guard.ts

@@ -0,0 +1,26 @@
+import { Injectable } from '@angular/core';
+import { ActivatedRouteSnapshot, CanActivate, Router, RouterStateSnapshot } from '@angular/router';
+import { Observable } from 'rxjs';
+import { AuthService } from '../services/auth.service';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class AuthGuard implements CanActivate {
+
+  constructor(
+    public authService: AuthService,
+    public router: Router
+  ){ }
+
+
+  canActivate(
+    next: ActivatedRouteSnapshot,
+    state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean {
+    if(this.authService.isLoggedIn !== true) {
+      this.router.navigate(['sign-in'])
+    }
+    return true;
+  }
+  
+}

src/app/shared/services/auth.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { AuthService } from './auth.service';
+
+describe('AuthService', () => {
+  let service: AuthService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(AuthService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

src/app/shared/services/auth.service.ts

@@ -0,0 +1,69 @@
+import { Injectable } from '@angular/core';
+import { Router } from '@angular/router';
+import { AngularFirestore, AngularFirestoreDocument } from '@angular/fire/compat/firestore';
+import { AngularFireAuth } from '@angular/fire/compat/auth';
+import * as firebase from 'firebase/app';
+import { User } from './user';
+
+@Injectable()
+export class AuthService {
+  
+  userData: any;
+  
+  constructor(
+    public afs: AngularFirestore,   // Inject Firestore service
+    public afAuth: AngularFireAuth, // Inject Firebase auth service
+    public router: Router
+  ) {    
+    /* Saving user data in localstorage when 
+    logged in and setting up null when logged out */
+    this.afAuth.authState.subscribe(user => {
+      if (user) {
+        this.userData = user;
+        localStorage.setItem('user', JSON.stringify(this.userData));
+        JSON.parse(localStorage.getItem('user') as string);
+      } else {
+        localStorage.setItem('user', null as any);
+        JSON.parse(localStorage.getItem('user') as string);
+      }
+    })
+  }
+
+  login(email : string, password : string) {
+    return this.afAuth.signInWithEmailAndPassword(email, password)
+      .then((result) => {
+        this.SetUserData(result.user as User);
+        localStorage.setItem('user', JSON.stringify(result.user));
+        JSON.parse(localStorage.getItem('user') as string);
+        this.router.navigate(['']);
+      }).catch((error) => {
+        window.alert(error.message)
+      })
+  }
+
+  get isLoggedIn(): boolean {
+    const user = JSON.parse(localStorage.getItem('user') as string);
+    return user !== null;
+  }
+
+  SetUserData(user: User) {
+    const userRef: AngularFirestoreDocument<any> = this.afs.doc(`users/${user.uid}`);
+    const userData: User = {
+      uid: user.uid,
+      email: user.email,
+      displayName: user.displayName,
+      photoURL: user.photoURL,
+      emailVerified: user.emailVerified
+    }
+    return userRef.set(userData, {
+      merge: true
+    })
+  }
+
+  logout() {
+    return this.afAuth.signOut().then(() => {
+      localStorage.removeItem('user');
+      this.router.navigate(['sign-in']);
+    })
+  }
+}

src/app/shared/services/user.ts

@@ -0,0 +1,7 @@
+export interface User {
+    uid: string;
+    email: string;
+    displayName: string;
+    photoURL: string;
+    emailVerified: boolean;
+ }