/* Angular */
import { Injectable } from '@angular/core';
import { NavController, LoadingController, AlertController, Events } from 'ionic-angular';
import { BackgroundMode } from '@ionic-native/background-mode';
import { Http, RequestOptions, Headers } from '@angular/http';
import { UrlBase } from '../models/UrlBase';
import { Storage } from '@ionic/storage';

@Injectable()
export class AuthService {

    header = new Headers();
    options = new RequestOptions();
    public token = "";

    constructor(private events : Events, private storage : Storage, private http : Http,  private backgroundMode: BackgroundMode ) {
        this.header.append('Content-Type', 'application/x-www-form-urlencoded');
        this.options = new RequestOptions({
        headers: this.header,
        });

    }

    verifyConnection(url){
        return this.http.get("http://" + url + ":8085/api/Core/VerifyConnectionPsiu");
    };

    authenticate(request, url){
        let urlFull = "http://" + url + ':8085/token';
        let data = "grant_type=password&username=" + request.Username + "&password=" + request.Password;
        return this.http.post(urlFull, data, this.options);
    }

    public userIsLogged(){
        return this.authInfo().then((data)=>{
          if(data !== undefined && data !== null){
              this.setToken(data.token);
            return true;
          }else{
            return false;
          }
        });
    }

    public authInfo(){
        return this.storage.get('authInfo');
    }

    public logout(){
        return this.storage.remove('authInfo').then(()=>{
            this.events.publish('logout');
        });
    }

    public setToken(token){
        this.token = token;
    }



}