users-service.ts

import { Injectable } from '@angular/core';
import { Http } from '@angular/http';
import 'rxjs/add/operator/map';

import * as firebase from 'firebase';

/*
  Generated class for the UsersServiceProvider provider.

  See https://angular.io/docs/ts/latest/guide/dependency-injection.html
  for more info on providers and Angular 2 DI.
*/
@Injectable()
export class UsersServiceProvider {

private data: any;
public fireAuth: any;
public userProfile: any;


  constructor(private http: Http) {
      this.fireAuth = firebase.auth();
      this.userProfile = firebase.database().ref('users');

    //console.log('Hello UsersServiceProvider Provider');
  }

  loadUser(number){
    if(this.data) {
      return Promise.resolve(this.data);
    }

    return new Promise(resolve => {

      this.http.get('https://randomuser.me/api/?results='+number)
      .map(res => res.json())
      .subscribe(data => {
        this.data = data.results;
        resolve(this.data);
      })

    });

  }

  signUpUser(email: string, password: string){
    return this.fireAuth.createUserWithEmailAndPassword(email, password).
    then((newUser) => {
        //SIGN IN THE USER
      this.fireAuth.signInWithEmailAndPassword(email, password).then((authenticatedUser) => {
        //SUCCESSFUL LOGIN, CREATE USER PROFILE
        this.userProfile.child(authenticatedUser.uid).set({
            email: email

        });

      });

   });

}

loginUser(email: string, password: string): any {
  return this.fireAuth.signInWithEmailAndPassword(email, password);

}

logoutUser() {
  return this.fireAuth.signOut();
}

forgotPasswordUser(email: any){
  return this.fireAuth.sendPasswordResetEmail(email);
  }
}

// googleSignInUser(){

//   var provider = new firebase.auth.GoogleAuthProvider();
//   provider.addScope('https://www.googleapis.com/auth/plus.login');

//   var that = this;

//   return firebase.auth().signInWithPopup(provider).then(function(result) {

//     if (result.user) {
//       console.log(result);

//       //The signed-in user info
//       var user = result.user;

//         var res = result.user.displayName.split(" ");

//         that.userProfile.child(user.uid).set({
//           email: user.email,
//           photo: user.photoURL,
//           username: user.displayName,
//           name: {
//             first: res[0],
//             middle: res[1],
//             last: res[2],
//           }
//         });
//     }
//   })
// }

//   logOut():

//   firebase.Promise<void> {
//     firebase.database().ref('/userProfile').child(firebase.auth().currentUser.uid).off();
//           return firebase.auth().signOut();
//   }

// }