From cc193b6ae08e5295e76d78f06d40d3f354eaf36c Mon Sep 17 00:00:00 2001
From: Max Ehrlicher-Schmidt <maxes2000@t-online.de>
Date: Thu, 17 Sep 2020 16:51:19 +0200
Subject: [PATCH] WIP login

---
 src/app/app.component.html               |  5 ++-
 src/app/app.component.ts                 |  8 +++-
 src/app/app.module.ts                    | 13 ++++++-
 src/app/models/user.ts                   |  5 +++
 src/app/pages/login/login.component.html | 39 ++++++++++++++++++-
 src/app/pages/login/login.component.scss | 16 ++++++++
 src/app/pages/login/login.component.ts   | 16 +++++++-
 src/app/services/auth.service.ts         | 49 ++++++++++++++++++++++++
 src/environments/environment.ts          |  4 +-
 src/styles.scss                          | 14 +++++++
 10 files changed, 160 insertions(+), 9 deletions(-)
 create mode 100644 src/app/models/user.ts
 create mode 100644 src/app/services/auth.service.ts

diff --git a/src/app/app.component.html b/src/app/app.component.html
index 642c284..7490ec0 100644
--- a/src/app/app.component.html
+++ b/src/app/app.component.html
@@ -1,9 +1,9 @@
 <div id="page-wrapper">
   <mat-toolbar id="navbar">
-    <button mat-icon-button (click)="sidenav.toggle()">
+    <button mat-icon-button (click)="sidenav.toggle()" *ngIf="loggedIn">
       <mat-icon>menu</mat-icon>
     </button>
-    <span>Flotte</span>
+    <span>fLotte</span>
     <button mat-icon-button [matMenuTriggerFor]="menu" id="menu-trigger-button">
       <mat-icon>more_vert</mat-icon>
     </button>
@@ -16,6 +16,7 @@
         <mat-slide-toggle
           (change)="changeTheme($event)"
           [checked]="darkThemeIsActive"
+          color="primary"
           >Dark Mode</mat-slide-toggle
         >
       </div>
diff --git a/src/app/app.component.ts b/src/app/app.component.ts
index 7131c97..ab69dbd 100644
--- a/src/app/app.component.ts
+++ b/src/app/app.component.ts
@@ -1,5 +1,6 @@
 import { Component, Renderer2 } from '@angular/core';
 import { ColorThemeService } from './services/colorTheme.service';
+import { AuthService } from './services/auth.service';
 
 @Component({
   selector: 'app-root',
@@ -7,16 +8,19 @@ import { ColorThemeService } from './services/colorTheme.service';
   styleUrls: ['./app.component.scss'],
 })
 export class AppComponent {
-  title = 'flotte-frontend';
+  title = 'fLotte-fRontend';
   darkThemeIsActive: boolean = false;
+  loggedIn = false;
 
   constructor(
     private renderer: Renderer2,
-    private themeService: ColorThemeService
+    private themeService: ColorThemeService,
+    private authService: AuthService
   ) {
     this.renderer.addClass(document.body, 'mat-app-background'); //so the background color changes dependent on current theme
     this.themeService.load();
     this.darkThemeIsActive = this.themeService.currentActive() === 'dark-theme';
+    this.authService.loggedIn.subscribe((value) => (this.loggedIn = value));
   }
 
   changeTheme(event) {
diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index 546efd0..a2df947 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -1,5 +1,7 @@
 import { BrowserModule } from '@angular/platform-browser';
 import { NgModule } from '@angular/core';
+import {FormsModule, ReactiveFormsModule} from '@angular/forms';
+import { HttpClientModule } from '@angular/common/http';
 
 // Angular Material Components
 import {MatToolbarModule} from '@angular/material/toolbar';
@@ -11,6 +13,9 @@ import {MatSlideToggleModule} from '@angular/material/slide-toggle';
 import {MatIconModule} from '@angular/material/icon';
 import {MatSidenavModule} from '@angular/material/sidenav';
 import {MatListModule} from '@angular/material/list';
+import {MatFormFieldModule} from '@angular/material/form-field';
+import {MatProgressSpinnerModule} from '@angular/material/progress-spinner';
+import {MatProgressBarModule} from '@angular/material/progress-bar';
 
 
 import { AppRoutingModule } from './app-routing.module';
@@ -29,8 +34,11 @@ import { BikesComponent } from './pages/bikes/bikes.component';
   ],
   imports: [
     BrowserModule,
+    HttpClientModule,
     AppRoutingModule,
     BrowserAnimationsModule,
+    FormsModule,
+    ReactiveFormsModule,
     MatToolbarModule,
     MatButtonModule,
     MatTableModule,
@@ -39,7 +47,10 @@ import { BikesComponent } from './pages/bikes/bikes.component';
     MatSlideToggleModule,
     MatIconModule,
     MatSidenavModule,
-    MatListModule
+    MatListModule,
+    MatFormFieldModule,
+    MatProgressSpinnerModule,
+    MatProgressBarModule
   ],
   providers: [],
   bootstrap: [AppComponent]
diff --git a/src/app/models/user.ts b/src/app/models/user.ts
new file mode 100644
index 0000000..16091b4
--- /dev/null
+++ b/src/app/models/user.ts
@@ -0,0 +1,5 @@
+export class User {
+    email: string;
+    requestToken: string;
+    refreshToken: string;
+}
\ No newline at end of file
diff --git a/src/app/pages/login/login.component.html b/src/app/pages/login/login.component.html
index 147cfc4..290b9a0 100644
--- a/src/app/pages/login/login.component.html
+++ b/src/app/pages/login/login.component.html
@@ -1 +1,38 @@
-<p>login works!</p>
+<div id="login-form">
+  <h1>fLotte Login</h1>
+  <mat-form-field>
+    <mat-label>E-Mail-Adresse eingeben</mat-label>
+    <input matInput placeholder="fLotte@beispiel.de" [formControl]="email" />
+    <mat-error *ngIf="email.hasError('required')">
+      Bitte geben Sie eine E-Mail-Adresse ein.
+    </mat-error>
+    <mat-error *ngIf="email.hasError('email')">
+      Bitte geben Sie eine valide E-Mail-Adresse ein.
+    </mat-error>
+  </mat-form-field>
+
+  <mat-form-field>
+    <mat-label>Passwort eingeben</mat-label>
+    <input
+      matInput
+      [type]="hide ? 'password' : 'text'"
+      [formControl]="password"
+    />
+    <mat-error *ngIf="password.hasError('required')">
+      Bitte geben Sie Ihr Passwort ein.
+    </mat-error>
+    <button
+      mat-icon-button
+      matSuffix
+      (click)="hide = !hide"
+      [attr.aria-label]="'Hide password'"
+      [attr.aria-pressed]="hide"
+    >
+      <mat-icon>{{ hide ? "visibility_off" : "visibility" }}</mat-icon>
+    </button>
+  </mat-form-field>
+  <mat-progress-bar mode="indeterminate" id="loading-bar" *ngIf="loading"></mat-progress-bar>
+  <button mat-stroked-button color="primary" (click)="login()">
+    Login
+  </button>
+</div>
diff --git a/src/app/pages/login/login.component.scss b/src/app/pages/login/login.component.scss
index e69de29..542b480 100644
--- a/src/app/pages/login/login.component.scss
+++ b/src/app/pages/login/login.component.scss
@@ -0,0 +1,16 @@
+#login-form {
+    height: 100%;
+    display: flex;
+    flex-direction: column;
+    max-width: 32em;
+    min-width: 5em;
+    margin: auto;
+    margin-top: 3em;
+    padding: 1em;
+    .mat-form-field {
+        margin: 0.5em 0;
+    }
+    #loading-bar {
+        margin-bottom: 1em;
+    }
+}
\ No newline at end of file
diff --git a/src/app/pages/login/login.component.ts b/src/app/pages/login/login.component.ts
index c74528f..653e5bb 100644
--- a/src/app/pages/login/login.component.ts
+++ b/src/app/pages/login/login.component.ts
@@ -1,4 +1,6 @@
 import { Component, OnInit } from '@angular/core';
+import {FormControl, Validators} from '@angular/forms';
+import {AuthService} from '../../services/auth.service';
 
 @Component({
   selector: 'app-login',
@@ -6,10 +8,20 @@ import { Component, OnInit } from '@angular/core';
   styleUrls: ['./login.component.scss']
 })
 export class LoginComponent implements OnInit {
-
-  constructor() { }
+  email = new FormControl('', [Validators.required, Validators.email]);
+  password = new FormControl('', [Validators.required]);
+  hide = true;
+  loading = false;
+  constructor(private authService: AuthService) { }
 
   ngOnInit(): void {
   }
 
+  login() {
+    if (this.email.invalid || this.password.invalid) {
+      return;
+    }
+    this.authService.login(this.email.value, this.password.value).subscribe();
+  }
+
 }
diff --git a/src/app/services/auth.service.ts b/src/app/services/auth.service.ts
new file mode 100644
index 0000000..85bf050
--- /dev/null
+++ b/src/app/services/auth.service.ts
@@ -0,0 +1,49 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { map } from 'rxjs/operators';
+import { environment } from '../../environments/environment';
+import { BehaviorSubject } from 'rxjs';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class AuthService {
+  public loggedIn: BehaviorSubject<boolean>;
+
+  constructor(private http: HttpClient) {
+    this.loggedIn = new BehaviorSubject<boolean>(false);
+    this.checkIfUserIsLoggedIn();
+  }
+
+  private checkIfUserIsLoggedIn(): void {
+    this.loggedIn.next(!!this.requestToken);
+  }
+
+  public get requestToken(): string {
+    return localStorage.getItem('requestToken');
+  }
+
+  public get refreshToken(): string {
+    return localStorage.getItem('refreshToken');
+  }
+
+  login(email: string, password: string) {
+    return this.http
+      .post<any>(`${environment.authUrl}/login`, { email, password })
+      .pipe(
+        map((response) => {
+          // store request and refresh token in local storage to keep user logged in between page refreshes
+          localStorage.setItem('requestToken', response.request_token);
+          localStorage.setItem('refreshToken', response.refresh_token);
+          this.checkIfUserIsLoggedIn();
+        })
+      );
+  }
+
+  logout() {
+    // remove token from local storage to log user out
+    localStorage.removeItem('requestToken');
+    localStorage.removeItem('refreshToken');
+    this.checkIfUserIsLoggedIn();
+  }
+}
diff --git a/src/environments/environment.ts b/src/environments/environment.ts
index 7b4f817..459188a 100644
--- a/src/environments/environment.ts
+++ b/src/environments/environment.ts
@@ -3,7 +3,9 @@
 // The list of file replacements can be found in `angular.json`.
 
 export const environment = {
-  production: false
+  production: false,
+  apiUrl: "http://localhost:4000",
+  authUrl: "http://localhost:8080"
 };
 
 /*
diff --git a/src/styles.scss b/src/styles.scss
index f31f353..42b42d7 100644
--- a/src/styles.scss
+++ b/src/styles.scss
@@ -3,3 +3,17 @@
 
 html, body { height: 100%; }
 body { margin: 0; font-family: Roboto, "Helvetica Neue", sans-serif; }
+
+h1 {
+    display: block;
+    padding-bottom: 5px;
+    position: relative;
+}
+h1:before {
+    content: "";
+    position: absolute;
+    width: 5rem;
+    height: 1px;
+    bottom: 0;
+    border-bottom: 3px solid #7fc600;
+}
\ No newline at end of file