D-Net

import {map, filter, mergeMap} from 'rxjs/operators';

import {Injectable} from '@angular/core';

import {

  Router,

  CanActivate,

  ActivatedRouteSnapshot,

  RouterStateSnapshot,

  CanLoad, Route, UrlSegment

} from '@angular/router';

import {Observable, of} from 'rxjs';

import {Session} from '../../login/utils/helper.class';

import {LoginErrorCodes} from '../../login/utils/guardHelper.class';

import {CommunityService} from '../community/community.service';

import {EnvironmentSpecificService} from '../../utils/properties/environment-specific.service';

import {ConnectHelper} from '../connectHelper';

import {StringUtils} from '../../utils/string-utils.class';

import {UserManagementService} from "../../services/user-management.service";

@Injectable()

export class ConnectAdminLoginGuard implements CanActivate, CanLoad {

  constructor(private router: Router,

              private communityService: CommunityService,

              private propertiesService: EnvironmentSpecificService,

              private userManagementService: UserManagementService) {

  }

  check(community: string, path: string): Observable<boolean> | boolean {

    let errorCode = LoginErrorCodes.NOT_LOGIN;

    let email = null;

    const authorized = this.propertiesService.subscribeEnvironment().pipe(map(res => res), mergeMap(properties => {

      return this.userManagementService.getUserInfo(properties.userInfoUrl).pipe(map(user => {

        if (user) {

          email = user.email;

          if (Session.isPortalAdministrator(user) || Session.isCommunityCurator(user)) {

            return of(true);

          } else {

            errorCode = LoginErrorCodes.NOT_ADMIN;

            return this.communityService.isCommunityManager(properties, properties['communityAPI'] + community,

              email);

          }

        } else {

          return of(false);

        }

      }), mergeMap( authorized => {

        return authorized;

      }));

    }));

    authorized.pipe(filter(authorized => !authorized)).subscribe(() => {

      this.router.navigate(['/user-info'], {

        queryParams: {

          'errorCode': errorCode,

          'redirectUrl': path

        }

    })});

    return authorized;

  }

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {

    return this.check(route.queryParams['communityId'], state.url);

  }

  canLoad(route: Route, segments: UrlSegment[]): Observable<boolean> | Promise<boolean> | boolean {

    const path = StringUtils.URLSegmentsToPath(segments) + document.location.search;

    return this.check(ConnectHelper.getCommunityFromPath(path), path);

  }

}