fix(console): remove redundant user api requests, show discovery document loading errors (#6683)

* optimize user observable

* fix observable guard

* lint

* lint

---------

Co-authored-by: Elio Bischof <elio@zitadel.com>

console/src/app/app.component.html

@@ -1,5 +1,5 @@
 <div class="main-container">
-  <ng-container *ngIf="(authService.user | async) || {} as user">
+  <ng-container *ngIf="(authService.userSubject | async) || {} as user">
     <cnsl-header
       *ngIf="user && user !== {}"
       [org]="org"

console/src/app/app.component.ts

@@ -225,9 +225,11 @@ export class AppComponent implements OnDestroy {
     });
 
     this.isDarkTheme = this.themeService.isDarkTheme;
-    this.isDarkTheme.subscribe((dark) => this.onSetTheme(dark ? 'dark-theme' : 'light-theme'));
+    this.isDarkTheme
+      .pipe(takeUntil(this.destroy$))
+      .subscribe((dark) => this.onSetTheme(dark ? 'dark-theme' : 'light-theme'));
 
-    this.translate.onLangChange.subscribe((language: LangChangeEvent) => {
+    this.translate.onLangChange.pipe(takeUntil(this.destroy$)).subscribe((language: LangChangeEvent) => {
       this.document.documentElement.lang = language.lang;
       this.language = language.lang;
     });
@@ -271,7 +273,7 @@ export class AppComponent implements OnDestroy {
     this.translate.addLangs(supportedLanguages);
     this.translate.setDefaultLang(fallbackLanguage);
 
-    this.authService.user.subscribe((userprofile) => {
+    this.authService.userSubject.pipe(takeUntil(this.destroy$)).subscribe((userprofile) => {
       if (userprofile) {
         const cropped = navigator.language.split('-')[0] ?? fallbackLanguage;
         const fallbackLang = cropped.match(supportedLanguagesRegexp) ? cropped : fallbackLanguage;

console/src/app/guards/user.guard.ts

@@ -1,7 +1,6 @@
 import { Injectable } from '@angular/core';
 import { ActivatedRouteSnapshot, Router, RouterStateSnapshot } from '@angular/router';
-import { Observable } from 'rxjs';
-import { map, tap } from 'rxjs/operators';
+import { map, Observable, take } from 'rxjs';
 
 import { GrpcAuthService } from '../services/grpc-auth.service';
 
@@ -19,11 +18,13 @@ export class UserGuard {
     state: RouterStateSnapshot,
   ): Observable<boolean> | Promise<boolean> | boolean {
     return this.authService.user.pipe(
-      map((user) => user?.id !== route.params['id']),
-      tap((isNotMe) => {
-        if (!isNotMe) {
+      take(1),
+      map((user) => {
+        const isMe = user?.id === route.params['id'];
+        if (isMe) {
           this.router.navigate(['/users', 'me']);
         }
+        return !isMe;
       }),
     );
   }

console/src/app/services/authentication.service.ts

@@ -3,6 +3,7 @@ import { AuthConfig, OAuthService } from 'angular-oauth2-oidc';
 import { BehaviorSubject, from, lastValueFrom, Observable } from 'rxjs';
 
 import { StatehandlerService } from './statehandler/statehandler.service';
+import { ToastService } from './toast.service';
 
 @Injectable({
   providedIn: 'root',
@@ -15,6 +16,7 @@ export class AuthenticationService {
   constructor(
     private oauthService: OAuthService,
     private statehandler: StatehandlerService,
+    private toast: ToastService,
   ) {}
 
   public initConfig(data: AuthConfig): void {
@@ -39,7 +41,10 @@ export class AuthenticationService {
     }
     this.oauthService.configure(this.authConfig);
     this.oauthService.strictDiscoveryDocumentValidation = false;
-    await this.oauthService.loadDiscoveryDocumentAndTryLogin();
+    await this.oauthService.loadDiscoveryDocumentAndTryLogin().catch((error) => {
+      this.toast.showError(error, false, false);
+    });
+
     this._authenticated = this.oauthService.hasValidAccessToken();
     if (!this.oauthService.hasValidIdToken() || !this.authenticated || partialConfig || force) {
       const newState = await lastValueFrom(this.statehandler.createState());

console/src/app/services/grpc-auth.service.ts

@@ -1,19 +1,8 @@
 import { Injectable } from '@angular/core';
 import { SortDirection } from '@angular/material/sort';
 import { OAuthService } from 'angular-oauth2-oidc';
-import { BehaviorSubject, from, merge, Observable, of, Subject } from 'rxjs';
-import {
-  catchError,
-  distinctUntilChanged,
-  filter,
-  finalize,
-  map,
-  mergeMap,
-  switchMap,
-  take,
-  timeout,
-  withLatestFrom,
-} from 'rxjs/operators';
+import { BehaviorSubject, forkJoin, from, Observable, of, Subject } from 'rxjs';
+import { catchError, distinctUntilChanged, filter, finalize, map, switchMap, timeout, withLatestFrom } from 'rxjs/operators';
 
 import {
   AddMyAuthFactorOTPEmailRequest,
@@ -184,25 +173,21 @@ export class GrpcAuthService {
       },
     });
 
-    this.user = merge(
-      of(this.oauthService.getAccessToken()).pipe(filter((token) => (token ? true : false))),
+    this.user = forkJoin([
+      of(this.oauthService.getAccessToken()),
       this.oauthService.events.pipe(
         filter((e) => e.type === 'token_received'),
         timeout(this.oauthService.waitForTokenInMsec || 0),
         catchError((_) => of(null)), // timeout is not an error
         map((_) => this.oauthService.getAccessToken()),
       ),
-    ).pipe(
-      take(1),
-      mergeMap(() => {
+    ]).pipe(
+      filter((token) => (token ? true : false)),
+      distinctUntilChanged(),
+      switchMap(() => {
         return from(
           this.getMyUser().then((resp) => {
-            const user = resp.user;
-            if (user) {
-              return user;
-            } else {
-              return undefined;
-            }
+            return resp.user;
           }),
         );
       }),