import 'package:buddy_book/presentation/login_screen.dart';
import 'package:buddy_book/repositories/user_entity.dart';
import 'package:buddy_book/repositories/user_repository.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/services.dart';
import 'package:google_sign_in/google_sign_in.dart';

class FirebaseUserRepository implements UserRepository {
  final FirebaseAuth auth;

  const FirebaseUserRepository(this.auth);

  @override
  Future<UserEntity> login() async {
    final firebaseUser = await auth.currentUser();

    if (firebaseUser == null) return null;

    return UserEntity(
        id: firebaseUser.uid,
        displayName: firebaseUser.displayName,
        photoUrl: firebaseUser.photoUrl,
        email: firebaseUser.email);
  }

  @override
  Future<bool> isConnected() async {
    final isConnected = await auth.currentUser().then((userConnected) {
      return userConnected != null;
    });

    return isConnected;
  }



  @override
  Future<UserEntity> loginEmailPassword(String email, String password) async {

    return await auth
        .signInWithEmailAndPassword(email: email, password: password)
        .then((firebaseUser) {
      return UserEntity(
          id: firebaseUser.uid,
          displayName: firebaseUser.displayName,
          photoUrl: firebaseUser.photoUrl,
          email: firebaseUser.email);
    }).catchError((Object obj, StackTrace stack){
      throw stack;
    });
  }

  @override
  Future<UserEntity> loginWithGoogle() async {
    final GoogleSignIn googleSignIn = new GoogleSignIn();

    googleSignIn.signOut();

    final GoogleSignInAccount googleUser = await googleSignIn.signIn();

    GoogleSignInAuthentication credentials = await googleUser.authentication;

    return await auth
        .signInWithGoogle(
      idToken: credentials.idToken,
      accessToken: credentials.accessToken,
    )
        .then((firebaseUser) {
      return UserEntity(
          id: firebaseUser.uid,
          displayName: firebaseUser.displayName,
          photoUrl: firebaseUser.photoUrl,
          email: firebaseUser.email);
    });

//    return await
  }

  @override
  void sendPasswordLink(String email) {
    auth.sendPasswordResetEmail(email: email);
  }

  @override
  Future<UserEntity> createAccount(String email, String password, String name) {
    return auth
        .createUserWithEmailAndPassword(email: email, password: password)
        .then((firebaseUser) {
      return UserEntity(
        id: firebaseUser.uid,
        displayName: firebaseUser.displayName,
        photoUrl: firebaseUser.photoUrl,
        email: firebaseUser.email,
      );
    });
  }
}