import { Router } from '@angular/router';
import * as firebase from 'firebase';
import { Injectable } from '@angular/core';

@Injectable()
export class O2AuthService {
  token: string;
  user: string;

    constructor(private router: Router) {}

    signupUser(email: string, password: string) {
      firebase.auth().createUserWithEmailAndPassword(email, password)
        .catch(
          error => console.log(error)
        );
    }

    loginEmail(email: string, password: string) {
      firebase.auth().signInWithEmailAndPassword(email, password)
        .then(
          response => {
            this.router.navigate(['/']);
            firebase.auth().currentUser.getIdToken()
              .then(
                (token: string) => this.token = token
              );
          }
        )
        .catch(
          error => console.log(error)
        );
    }

    loginFacebook() {
      const provider = new firebase.auth.FacebookAuthProvider();
      this.loginByAuthProvider(provider);
    }

    loginGoogle() {
      const provider = new firebase.auth.GoogleAuthProvider();
      this.loginByAuthProvider(provider);
    }

    loginGithub() {
      const provider = new firebase.auth.GithubAuthProvider();
      this.loginByAuthProvider(provider);
    }

    loginTwitter() {
      const provider = new firebase.auth.TwitterAuthProvider();
      this.loginByAuthProvider(provider);
    }

    loginByAuthProvider(provider: any ) {
      firebase.auth().signInWithPopup(provider)
      .then((result) => {
        this.token = result.credential.accessToken;
        this.user = result.user;
        console.log(this.token);
        console.log(this.user);
      })
      .catch((error) => {
        console.log(error);
      });
    }

    logout() {
      firebase.auth().signOut();
      this.token = null;
    }

    getToken() {
      firebase.auth().currentUser.getIdToken()
        .then(
          (token: string) => this.token = token
        );
      return this.token;
    }

    isAuthenticated() {
      return this.token != null;
    }
  }