import {Injectable} from '@angular/core'
import {HttpClient} from '@angular/common/http'
import {Router, NavigationEnd} from '@angular/router'

import {Observable} from 'rxjs/Observable'
import 'rxjs/add/operator/do'
import 'rxjs/add/operator/filter'

//import {API} from '../../app.api'; // Ex.:http://localhost:8888
//import {User} from './user.model'

@Injectable()
export class LoginService {

  user: User
  lastUrl: string

  constructor(private http: HttpClient, private router: Router){
    this.router.events.filter(e => e instanceof NavigationEnd)
                      .subscribe( (e: NavigationEnd) => this.lastUrl = e.url)
  }

  isLoggedIn(): boolean {
    return this.user !== undefined
  }

  login(email: string, password: string): Observable<User> {
    return this.http.post<User>(`${API}/login`,
                          {email: email, password: password})
                    .do(user => this.user = user)
  }

  logout(){
    this.user = undefined
  }

  handleLogin(path: string = this.lastUrl){
    //this.router.navigate(['/login', btoa(path)])
    //fazer o redirect para o login
  }

}