aswi2021codebakers-gitlab/src/app/auth/guards/role.guard.ts @ 1d6ec56f

import { Injectable } from '@angular/core';
import {
  CanActivate,
  ActivatedRouteSnapshot,
  RouterStateSnapshot,
  UrlTree, Router
} from '@angular/router';
import { Observable } from 'rxjs';
import { AuthService } from '../services/auth.service';

@Injectable({
  providedIn: 'root'
})
export class RoleGuard implements CanActivate {

  constructor(
    private authService: AuthService,
    private router: Router,
  ) {}

  canActivate(
    routeSnapshot: ActivatedRouteSnapshot,
    state: RouterStateSnapshot
  ): Observable<boolean | UrlTree> | Promise<boolean | UrlTree> | boolean | UrlTree {
    const expectedRole: string[] = routeSnapshot.data.expectedRole;
    if (expectedRole.map(x => this.authService.getUserRoles().some(userRole => userRole.group_name === x))) {
     return true;
    }
    this.router.navigate(['']);
    return false;
  }
}