argos/dmp-frontend/src/app/ui/auth/login/login.component.ts

import { Component, Input, NgZone, OnInit } from '@angular/core';
import { ActivatedRoute, Params, Router } from '@angular/router';
import { AuthService } from '@app/core/services/auth/auth.service';
import { BaseComponent } from '@common/base/base.component';
import { KeycloakService } from 'keycloak-angular';
import { from } from 'rxjs';
import { takeUntil } from 'rxjs/operators';

@Component({
	selector: 'app-login',
	templateUrl: './login.component.html',
	styleUrls: ['./login.component.scss']
})
export class LoginComponent extends BaseComponent implements OnInit {

	@Input() redirect: boolean = true;
	@Input() mergeUsers: boolean;

	public auth2: any;
	private returnUrl: string;
	//public cofigurableProviders: ConfigurableProvider[];

	constructor(
		private zone: NgZone,
		private router: Router,
		private authService: AuthService,
		private route: ActivatedRoute,
		private keycloakService: KeycloakService
	) { super(); }

	ngOnInit(): void {
		this.returnUrl = this.route.snapshot.queryParamMap.get('returnUrl') || '/';
		if (!this.keycloakService.isLoggedIn()) {
			this.authService.authenticate('/');
		} else {
			this.authService.prepareAuthRequest(from(this.keycloakService.getToken())).pipe(takeUntil(this._destroyed)).subscribe(
				() => {
					let returnUrL = this.returnUrl;
					let queryParams: Params = {};
					if (!this.authService.selectedTenant()) {
						this.authService.selectedTenant('default');
						// returnUrL = '/login/post';
						// queryParams.returnUrl = this.returnUrl;
					}
					this.zone.run(() => this.router.navigate([returnUrL], { queryParams }));
				},
				(error) => this.authService.authenticate('/'));

		}
	}
}