import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../core/network/api_client.dart';
import '../../core/network/api_response.dart';
import '../../app.dart';
import '../../shared/models/pagination_model.dart';
import 'expense_model.dart';

final expenseApiProvider = Provider<ExpenseApi>(
  (ref) => ExpenseApi(ref.read(apiClientProvider)),
);

// ═══ 参考数据模型（API 返回） ═══

class CostTypeItem {
  final String typeNo;
  final String typeName;
  final String accNo;
  final String accName;
  const CostTypeItem({required this.typeNo, required this.typeName, required this.accNo, required this.accName});
  factory CostTypeItem.fromJson(Map<String, dynamic> json) => CostTypeItem(
    typeNo: json['typeNo'] as String? ?? '',
    typeName: json['typeName'] as String? ?? '',
    accNo: json['accNo'] as String? ?? '',
    accName: json['accName'] as String? ?? '',
  );
}

class ProjectCodeItem {
  final String objNo;
  final String name;
  const ProjectCodeItem({required this.objNo, required this.name});
  factory ProjectCodeItem.fromJson(Map<String, dynamic> json) => ProjectCodeItem(
    objNo: json['objNo'] as String? ?? '',
    name: json['name'] as String? ?? '',
  );
}

class DepartmentItem {
  final String dep;
  final String name;
  const DepartmentItem({required this.dep, required this.name});
  factory DepartmentItem.fromJson(Map<String, dynamic> json) => DepartmentItem(
    dep: json['dep'] as String? ?? '',
    name: json['name'] as String? ?? '',
  );
}

class CustomerItem {
  final String cusNo;
  final String name;
  const CustomerItem({required this.cusNo, required this.name});
  factory CustomerItem.fromJson(Map<String, dynamic> json) => CustomerItem(
    cusNo: json['cusNo'] as String? ?? '',
    name: json['name'] as String? ?? '',
  );
}

class CurrencyItem {
  final String curId;
  final String name;
  const CurrencyItem({required this.curId, required this.name});
  factory CurrencyItem.fromJson(Map<String, dynamic> json) => CurrencyItem(
    curId: json['curId'] as String? ?? '',
    name: json['name'] as String? ?? '',
  );
}

class EmployeeItem {
  final String salNo;
  final String name;
  final String dep;
  final String tel;
  final String email;
  final String bnkNo;
  final String bnkId;
  final String accName;
  const EmployeeItem({required this.salNo, required this.name, this.dep = '', this.tel = '', this.email = '', this.bnkNo = '', this.bnkId = '', this.accName = ''});
  factory EmployeeItem.fromJson(Map<String, dynamic> json) => EmployeeItem(
    salNo: json['salNo'] as String? ?? '',
    name: json['name'] as String? ?? '',
    dep: json['dep'] as String? ?? '',
    tel: json['tel'] as String? ?? '',
    email: json['email'] as String? ?? '',
    bnkNo: json['bnkNo'] as String? ?? '',
    bnkId: json['bnkId'] as String? ?? '',
    accName: json['accName'] as String? ?? '',
  );
}

class ExpenseApi {
  final ApiClient _client;
  ExpenseApi(this._client);

  /// 费用报销列表（分页）
  Future<PaginatedData<ExpenseModel>> fetchList({
    String status = '',
    String keyword = '',
    String startDate = '',
    String endDate = '',
    String usr = '',
    int page = 1,
    int size = 20,
  }) async {
    final response = await _client.get<Map<String, dynamic>>(
      '/OA/GetExpenseReports',
      queryParameters: {
        'status': status,
        'keyword': keyword,
        'startDate': startDate,
        'endDate': endDate,
        'usr': usr,
        'page': page,
        'size': size,
      },
    );
    return PaginatedData.fromJson(response.data!, ExpenseModel.fromJson);
  }

  /// 费用报销详情（主表+明细）
  Future<ExpenseModel> fetchDetail(String billNo) async {
    final response = await _client.get<Map<String, dynamic>>(
      '/OA/GetExpenseReportDetail',
      queryParameters: {'billNo': billNo},
    );
    return ExpenseModel.fromJson(response.data!);
  }

  /// 提交审批
  Future<void> submit(Map<String, dynamic> data) async {
    await _client.post('/OA/BillSave', data: {
      'erpCategory': 'MasterService',
      'billId': 'BX',
      'procId': '',
      'data': data,
    });
  }

  /// 财务核销
  Future<void> verify(Map<String, dynamic> data) async {
    await _client.post('/OA/ExpenseVerify', data: data);
  }

  /// 费用类别字典
  Future<List<CostTypeItem>> getCostTypes({String keyword = '', String accNo = ''}) async {
    final response = await _client.get<Map<String, dynamic>>(
      '/OA/GetCostTypes',
      queryParameters: {'keyword': keyword, 'accNo': accNo, 'page': 1, 'size': 100},
    );
    final list = (response.data?['list'] as List<dynamic>?) ?? [];
    return list.map((e) => CostTypeItem.fromJson(e as Map<String, dynamic>)).toList();
  }

  /// 项目代号
  Future<List<ProjectCodeItem>> getProjectCodes({String keyword = '', String billDate = ''}) async {
    final response = await _client.get<Map<String, dynamic>>(
      '/OA/GetProjectCodes',
      queryParameters: {'keyword': keyword, 'billDate': billDate, 'page': 1, 'size': 100},
    );
    final list = (response.data?['list'] as List<dynamic>?) ?? [];
    return list.map((e) => ProjectCodeItem.fromJson(e as Map<String, dynamic>)).toList();
  }

  /// 部门
  Future<List<DepartmentItem>> getDepartments({String keyword = '', bool onlyActive = true}) async {
    final response = await _client.get<Map<String, dynamic>>(
      '/OA/GetDepartments',
      queryParameters: {'keyword': keyword, 'onlyActive': onlyActive, 'page': 1, 'size': 100},
    );
    final list = (response.data?['list'] as List<dynamic>?) ?? [];
    return list.map((e) => DepartmentItem.fromJson(e as Map<String, dynamic>)).toList();
  }

  /// 客户/厂商
  Future<List<CustomerItem>> getCustomers({String keyword = ''}) async {
    final response = await _client.get<Map<String, dynamic>>(
      '/OA/GetCustomers',
      queryParameters: {'keyword': keyword, 'page': 1, 'size': 100},
    );
    final list = (response.data?['list'] as List<dynamic>?) ?? [];
    return list.map((e) => CustomerItem.fromJson(e as Map<String, dynamic>)).toList();
  }

  /// 员工查询
  Future<List<EmployeeItem>> getEmployees({String keyword = '', String salNo = ''}) async {
    final response = await _client.get<Map<String, dynamic>>(
      '/OA/GetEmployees',
      queryParameters: {'keyword': keyword, 'salNo': salNo, 'page': 1, 'size': 100},
    );
    final list = (response.data?['list'] as List<dynamic>?) ?? [];
    return list.map((e) => EmployeeItem.fromJson(e as Map<String, dynamic>)).toList();
  }

  /// 可转入报销单的费用申请明细
  Future<Map<String, dynamic>> getImportableExpenseApplies({
    String aeNo = '', String startDate = '', String endDate = '', int page = 1, int size = 20,
  }) async {
    final response = await _client.get<Map<String, dynamic>>(
      '/OA/GetImportableExpenseApplies',
      queryParameters: {'aeNo': aeNo, 'startDate': startDate, 'endDate': endDate, 'page': page, 'size': size},
    );
    return response.data!;
  }

  /// 币别
  Future<List<CurrencyItem>> getCurrencies({String keyword = ''}) async {
    final response = await _client.get<Map<String, dynamic>>(
      '/OA/GetCurrencies',
      queryParameters: {'keyword': keyword, 'page': 1, 'size': 50},
    );
    final list = (response.data?['list'] as List<dynamic>?) ?? [];
    return list.map((e) => CurrencyItem.fromJson(e as Map<String, dynamic>)).toList();
  }

  /// 币别查询（旧版，保留兼容）
  Future<ApiResponse<Map<String, dynamic>>> fetchCurrencies({
    String keyword = '',
    int page = 1,
    int size = 50,
  }) async {
    return await _client.get('/OA/GetCurrencies',
        queryParameters: {'keyword': keyword, 'page': page, 'size': size});
  }
}