import {Injectable} from "@angular/core";
import {Http, Headers} from "@angular/http";
import { Observable } from 'rxjs/Observable';

@Injectable()
export class LoginService {

  private loggedIn = false;
  private loginUrl = 'http://localhost:8080/j_spring_security_check';
  private logoutUrl = 'http://localhost:8080/j_spring_security_logout';

  constructor(private http: Http) { }

  login(username, password) {
    let headers = new Headers({ 'Content-Type': 'application/x-www-form-urlencoded' });
    let body = 'j_username=' +username +'&j_password=' +password;
    return this.http.post(this.loginUrl, body, { headers: headers }).map(
      result => this.loggedIn = true
    );
  }

  logout() {
    let headers = new Headers({ 'Content-Type': 'application/x-www-form-urlencoded' });
    let body = '';
    return this.http.post(this.logoutUrl, body, { headers: headers }).map(
      result => this.loggedIn = false
    );
  }

  isLoggedIn(): boolean {
    return this.loggedIn
  }
}