import { Injectable, isDevMode } from '@angular/core';
import { ActivatedRouteSnapshot, CanActivate, Router, RouterStateSnapshot } from '@angular/router';
import { NavController } from '@ionic/angular';
import { AccountService } from './account.service';

@Injectable({
  providedIn: 'root',
})
export class UserRouteAccessService implements CanActivate {
  constructor(
    private router: Router,
    private navController: NavController,
    private accountService: AccountService, // private stateStorageService: StateStorageService
  ) {}

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean | Promise<boolean> {
    const authorities = route.data['authorities'];
    // We need to call the checkLogin / and so the accountService.identity() function, to ensure,
    // that the client has a principal too, if they already logged in by the server.
    // This could happen on a page refresh.
    return this.checkLogin(authorities, state.url);
  }

  checkLogin(authorities: string[], url: string): Promise<boolean> {
    return this.accountService.identity().then(account => {
      if (!authorities || authorities.length === 0) {
        return true;
      }

      if (account) {
        const hasAnyAuthority = this.accountService.hasAnyAuthority(authorities);
        if (hasAnyAuthority) {
          return true;
        }
        if (isDevMode()) {
          console.error('User has not any of required authorities: ', authorities);
        }
        return false;
      }

      // this.stateStorageService.storeUrl(url);
      // this.router.navigate(['accessdenied']).then(() => {
      //     // only show the login dialog, if the user hasn't logged in yet
      //     if (!account) {
      //         // this.loginModalService.open();
      //         console.log('go to login page');
      //     }
      // });
      this.navController.navigateRoot('/accessdenied');

      return false;
    });
  }
}