import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../api/bill_api.dart';
import '../api/api_client.dart';
import '../models/bill.dart';

final billApiProvider = Provider<BillApi>((ref) {
  return BillApi(ref.read(apiClientProvider));
});

class BillNotifier extends StateNotifier<AsyncValue<List<Bill>>> {
  final BillApi _api;
  String? _currentFamilyId;

  BillNotifier(this._api) : super(const AsyncValue.data([]));

  Future<void> loadBills({String? familyId}) async {
    _currentFamilyId = familyId;
    state = const AsyncValue.loading();
    try {
      final res = await _api.getBills(familyId: familyId);
      if (res['success'] == true) {
        state = AsyncValue.data((res['data'] as List).map((e) => Bill.fromJson(e)).toList());
      } else {
        state = AsyncValue.error(res['error'] ?? '加载失败', StackTrace.current);
      }
    } catch (e, st) {
      state = AsyncValue.error(e.toString(), st);
    }
  }

  Future<bool> addBill(Map<String, dynamic> data) async {
    try {
      final res = await _api.createBill(data);
      if (res['success'] == true) {
        await loadBills(familyId: _currentFamilyId);
        return true;
      }
    } catch (_) {}
    return false;
  }
}

final billProvider = StateNotifierProvider<BillNotifier, AsyncValue<List<Bill>>>((ref) {
  return BillNotifier(ref.read(billApiProvider));
});