import { Injectable } from '@angular/core';
import {Router, CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, CanLoad, Route} from '@angular/router';
import {Observable}       from 'rxjs/Observable';
import {Session} from './utils/helper.class';
import {LoginErrorCodes} from './utils/guardHelper.class';

@Injectable()
export class AdminLoginGuard implements CanActivate, CanLoad {

  constructor(private router: Router) {}

  check(route: Route) : boolean{
    let loggedIn = false;
    let isAdmin = false;
    let errorCode = LoginErrorCodes.NOT_LOGIN;
    if(Session.isLoggedIn()){
      loggedIn = true;
      isAdmin = Session.isPortalAdministrator();
      if(!isAdmin){
        errorCode = LoginErrorCodes.NOT_ADMIN;
      }
    }
    if(!loggedIn || !isAdmin) {
      // this.guardHelper.redirect("/user-info",errorCode,state.url);
      route.path = '/' + route.path;
      this.router.navigate(['user-info'], {queryParams: {"errorCode": errorCode, "redirectUrl": route.path}});
    }
    return loggedIn && isAdmin;
  }

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {
    return this.check(route.routeConfig);
  }

  canLoad(route: Route): Observable<boolean> | Promise<boolean> | boolean {
    return this.check(route);
  }
}