import { Injectable } from '@angular/core';
import { Router, CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router';
import { Utils } from '../shares';
@Injectable({ providedIn: 'root' })
export class AuthGuard implements CanActivate {
  msg ="[AuthGuard] ";
  constructor(private router: Router) { }

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot) {
    const roleAllowed = (route.data as any).roleAllowed;
    const user = Utils.getCurrentUser();   
    const userRole = Utils.getUserRole(user);
    let hasLoggedIn = Utils.getIsAuth();   
    console.log(this.msg + " the userlogin ", user);
    if (hasLoggedIn) {

      if (roleAllowed != undefined)
      {
       console.log("[auth-guard] ther roleAllow ", roleAllowed);
        if (roleAllowed.indexOf(userRole) != -1) {       
          return true;
        }
        else {
          this.router.navigate(['/login']);
          return false;
        }
      }
      else //if no role define just return hasLoggedIn
      {
        return hasLoggedIn;
      }
    }
    else
    {
      this.router.navigate(['/login']);
      return false;
    }

    // not logged in so redirect to login page with the return url
    this.router.navigate(['/login'], { queryParams: { returnUrl: state.url } });
    return false;
  }
 
}