import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:onesignal_flutter/onesignal_flutter.dart';

import '../../repositories/auth_repository.dart';
import '../../services/supabase_auth_service.dart'; // Dibutuhkan untuk DI di authRepositoryProvider
import 'auth_state.dart';

// ── Provider ────────────────────────────────────────────────────
// Provider untuk AuthRepository yang disuntik dengan SupabaseAuthService
final authRepositoryProvider = Provider<AuthRepository>(
  (ref) => AuthRepository(SupabaseAuthService()),
);

final authProvider = StateNotifierProvider<AuthNotifier, AuthState>(
  (ref) => AuthNotifier(ref.read(authRepositoryProvider)),
);

// ── Notifier ────────────────────────────────────────────────────
class AuthNotifier extends StateNotifier<AuthState> {
  final AuthRepository _repo;

  AuthNotifier(this._repo) : super(const AuthIdle());

  Future<void> checkAuthStatus() async {
    state = const AuthLoading();
    try {
      // Gunakan _repo.checkSession() lewat DI — tidak perlu buat instance baru
      final user = await _repo.checkSession();

      if (user != null) {
        OneSignal.login(user.id);
        state = AuthSuccess(user);
      } else {
        state = const AuthIdle();
      }
    } catch (e) {
      state = const AuthIdle();
    }
  }

  Future<void> login(String email, String password) async {
    state = const AuthLoading();
    try {
      final user = await _repo.login(email, password);
      OneSignal.login(user.id);
      state = AuthSuccess(user);
    } catch (e) {
      state = AuthError(e.toString().replaceFirst('Exception: ', ''));
    }
  }

  Future<void> register(
      String name, String email, String password, String claimCode) async {
    state = const AuthLoading();
    try {
      final user = await _repo.register(name, email, password, claimCode);
      OneSignal.login(user.id);
      state = AuthSuccess(user);
    } catch (e) {
      state = AuthError(e.toString().replaceFirst('Exception: ', ''));
    }
  }

  Future<void> logout() async {
    OneSignal.logout();
    await _repo.logout();
    state = const AuthIdle();
  }

  void resetError() {
    if (state is AuthError) state = const AuthIdle();
  }
}