import 'package:flutter/foundation.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:supabase_flutter/supabase_flutter.dart';

class DbHelper {
  static Future<SharedPreferences> get _prefs async =>
      SharedPreferences.getInstance();

  static final _supabase = Supabase.instance.client;

  static User? get currentUser => _supabase.auth.currentUser;

  static Stream<AuthState> get authEventStream =>
      _supabase.auth.onAuthStateChange;

  static Future<void> init() async {
    await Supabase.initialize(
      url: 'https://vhmrtvhcmvylhrhblyjb.supabase.co',
      anonKey:
          'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6InZobXJ0dmhjbXZ5bGhyaGJseWpiIiwicm9sZSI6ImFub24iLCJpYXQiOjE2OTc4MTU3MTksImV4cCI6MjAxMzM5MTcxOX0.Djltae5oIvANqHdY1cNqA1ja5aAEivr-a_XDYkSd924',
    );
  }

  static void login(String username) async {
    if (username.length < 2) return;
    final prefs = await _prefs;

    try {
      await _supabase.auth.signInWithPassword(
        email: '$username@skup.in',
        password: 'password',
      );
      await prefs.setString('username', username);
    } on AuthException catch (e) {
      await _supabase.auth.signUp(
          email: '$username@skup.in',
          password: 'password',
          data: {'username': username});
      await prefs.setString('username', username);
    }
  }

  static Future<bool> autoLogin() async {
    final prefs = await _prefs;
    final String? username = prefs.getString('username');
    if (username == null) return false;
    try {
      await _supabase.auth.signInWithPassword(
        email: '$username@skup.in',
        password: 'password',
      );
      return true;
    } on AuthException catch (e) {
      if (kDebugMode) {
        print('Could\'t automaticall log in.\n${e.message}');
      }
    }
    return false;
  }

  static void logout() async {
    final prefs = await _prefs;
    bool success = await prefs.remove('username');
    _supabase.auth.signOut();
  }
}