import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:physigo/Services/DatabaseManager.dart';
import 'package:physigo/Services/logged_in_user.dart';

class AuthenticationServices {
  static final FirebaseAuth _auth = FirebaseAuth.instance;
  static LoggedInUser? user;

  //Register a user
  static Future createNewUser(String address, bool anonymous, String birth, String name, String email, String password,
      String phone, String sharedID, String surname) async {
    try {
      UserCredential result = await _auth.createUserWithEmailAndPassword(email: email, password: password);
      User? user = result.user;
      await DatabaseManager("total_points").createUserData(address, anonymous, birth, DateTime.now(), DateTime.now(),
          email, name, phone, sharedID, surname, 0, DateTime.now(), 'null', user!.uid);

      return user;
    } catch (e) {
      print(e.toString());
    }
  }

  //LogIn with user
  static Future loginUser(String email, String password) async {
    try {
      UserCredential result = await _auth.signInWithEmailAndPassword(email: email, password: password);
      await getCurrentUser();
      return result.user;
    } catch (e) {
      print(e.toString());
    }
  }

  static Future<LoggedInUser?> getCurrentUser() async {
    if (user != null) {
      return user;
    }
    if (_auth.currentUser == null) {
      return null;
    }
    var querySnapshot = await FirebaseFirestore.instance
        .collection('profileInfo')
        .where('mail', isEqualTo: _auth.currentUser?.email)
        .get();
    user = LoggedInUser.fromMap(querySnapshot.docs.first.data());
    return user;
  }

  static Stream<int> getPlace(dynamic user) async* {
    var users = await FirebaseFirestore.instance
        .collection('Users')
        .where("total_points", isGreaterThan: user["total_points"])
        .get();
    yield users.docs.length + 1;
  }
}