Add user logout.

src/app/_services/auth.service.ts

@@ -47,7 +47,7 @@ export class AuthService {
         throw new Error('login rejected');
       }
       this.sessionLoginCount++;
-      this.setState('Click button to perform login ' + this.sessionLoginCount + ' with token ' + this.sessionToken);
+      this.setState('Click button to log in');
       return;
     });
     xhr.send();
@@ -67,7 +67,7 @@ export class AuthService {
       this.sessionToken = xhr.getResponseHeader('Token');
       sessionStorage.setItem(btoa('CICADA_SESSION_TOKEN'), this.sessionToken);
       this.sessionLoginCount++;
-      this.setState('Click button to perform login ' + this.sessionLoginCount + ' with token ' + this.sessionToken);
+      this.setState('Click button to log in');
       return;
     });
     xhr.send();
@@ -147,6 +147,7 @@ export class AuthService {
 
   logout(): void {
     sessionStorage.removeItem(btoa('CICADA_SESSION_TOKEN'));
+    this.sessionToken = undefined;
     window.location.reload(true);
   }
 

src/app/auth/auth.component.ts

@@ -29,8 +29,7 @@ export class AuthComponent implements OnInit {
     if (this.authService.privateKey !== undefined) {
       const setKey = await this.authService.setKey(this.authService.privateKey);
       if (setKey && this.authService.sessionToken !== undefined) {
-        this.authService.setState(
-          'Click button to perform login ' + this.authService.sessionLoginCount + ' with token ' + this.authService.sessionToken);
+        this.authService.setState('Click button to log in');
       }
     }
   }

src/app/pages/settings/settings.component.html

@@ -50,7 +50,7 @@
             </div>
             <hr>
             <div class="card-body">
-              <button mat-raised-button color="primary" type="button" class="btn btn-outline-primary"> LOGOUT ADMIN </button>
+              <button mat-raised-button color="primary" type="button" class="btn btn-outline-primary" (click)="logout()"> LOGOUT ADMIN </button>
             </div>
           </div>
         </div>

src/app/pages/settings/settings.component.ts

@@ -41,4 +41,8 @@ export class SettingsComponent implements OnInit {
   downloadCsv(): void {
     exportCsv(this.trustedUsers, 'users');
   }
+
+  logout(): void {
+    this.authService.logout();
+  }
 }