import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../core/api/api_client.dart';
import '../../shared/models/surat.dart';

// StateNotifier-based list provider (fixes Map equality bug)
class SuratListNotifier extends StateNotifier<AsyncValue<PagedSurat>> {
  SuratListNotifier() : super(const AsyncLoading()) {
    load();
  }

  Future<void> load({String? filter, String? search, int page = 1}) async {
    state = const AsyncLoading();
    try {
      final params = <String, dynamic>{'page': page, 'limit': 20};
      if (filter == 'approved') params['is_approved'] = true;
      if (filter == 'pending') params['is_approved'] = false;
      if (search != null && search.isNotEmpty) params['search'] = search;
      final resp = await apiDio.get('/surat', queryParameters: params);
      state = AsyncData(PagedSurat.fromJson(resp.data));
    } catch (e) {
      state = AsyncError(e, StackTrace.current);
    }
  }
}

final suratListProvider = StateNotifierProvider<SuratListNotifier, AsyncValue<PagedSurat>>(
  (_) => SuratListNotifier(),
);

final suratDetailProvider = FutureProvider.autoDispose.family<Surat, int>((ref, id) async {
  final resp = await apiDio.get('/surat/$id');
  return Surat.fromJson(resp.data);
});

Future<Surat> createSurat(Map<String, dynamic> data) async {
  final resp = await apiDio.post('/surat', data: data);
  return Surat.fromJson(resp.data);
}

Future<Surat> updateSurat(int id, Map<String, dynamic> data) async {
  final resp = await apiDio.put('/surat/$id', data: data);
  return Surat.fromJson(resp.data);
}

Future<Surat> approveSurat(int id) async {
  final resp = await apiDio.post('/surat/$id/approve');
  return Surat.fromJson(resp.data);
}

Future<Surat> unapproveSurat(int id) async {
  final resp = await apiDio.delete('/surat/$id/approve');
  return Surat.fromJson(resp.data);
}

Future<void> deleteSurat(int id) async {
  await apiDio.delete('/surat/$id');
}