import 'package:dio/dio.dart';
import 'package:injectable/injectable.dart';
import 'package:superport/core/errors/exceptions.dart';
import 'package:superport/data/datasources/remote/api_client.dart';
import 'package:superport/data/models/user/user_dto.dart';

@lazySingleton
class UserRemoteDataSource {
  final ApiClient _apiClient;

  UserRemoteDataSource() : _apiClient = ApiClient();

  /// 사용자 목록 조회
  Future<UserListDto> getUsers({
    int page = 1,
    int perPage = 20,
    bool? isActive,
    int? companyId,
    String? role,
  }) async {
    try {
      final queryParams = {
        'page': page,
        'per_page': perPage,
        if (isActive != null) 'is_active': isActive,
        if (companyId != null) 'company_id': companyId,
        if (role != null) 'role': role,
      };

      final response = await _apiClient.get(
        '/users',
        queryParameters: queryParams,
      );

      return UserListDto.fromJson(response.data);
    } on DioException catch (e) {
      throw ApiException(
        message: e.response?.data['message'] ?? '사용자 목록을 불러오는데 실패했습니다',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// 특정 사용자 조회
  Future<UserDto> getUser(int id) async {
    try {
      final response = await _apiClient.get('/users/$id');
      return UserDto.fromJson(response.data);
    } on DioException catch (e) {
      throw ApiException(
        message: e.response?.data['message'] ?? '사용자 정보를 불러오는데 실패했습니다',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// 사용자 생성
  Future<UserDto> createUser(CreateUserRequest request) async {
    try {
      final response = await _apiClient.post(
        '/users',
        data: request.toJson(),
      );

      return UserDto.fromJson(response.data);
    } on DioException catch (e) {
      throw ApiException(
        message: e.response?.data['message'] ?? '사용자 생성에 실패했습니다',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// 사용자 정보 수정
  Future<UserDto> updateUser(int id, UpdateUserRequest request) async {
    try {
      final response = await _apiClient.put(
        '/users/$id',
        data: request.toJson(),
      );

      return UserDto.fromJson(response.data);
    } on DioException catch (e) {
      throw ApiException(
        message: e.response?.data['message'] ?? '사용자 정보 수정에 실패했습니다',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// 사용자 삭제
  Future<void> deleteUser(int id) async {
    try {
      await _apiClient.delete('/users/$id');
    } on DioException catch (e) {
      throw ApiException(
        message: e.response?.data['message'] ?? '사용자 삭제에 실패했습니다',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// 사용자 상태 변경 (활성/비활성)
  Future<UserDto> changeUserStatus(int id, ChangeStatusRequest request) async {
    try {
      final response = await _apiClient.patch(
        '/users/$id/status',
        data: request.toJson(),
      );

      return UserDto.fromJson(response.data);
    } on DioException catch (e) {
      throw ApiException(
        message: e.response?.data['message'] ?? '사용자 상태 변경에 실패했습니다',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// 비밀번호 변경
  Future<void> changePassword(int id, ChangePasswordRequest request) async {
    try {
      await _apiClient.put(
        '/users/$id/password',
        data: request.toJson(),
      );
    } on DioException catch (e) {
      throw ApiException(
        message: e.response?.data['message'] ?? '비밀번호 변경에 실패했습니다',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// 사용자명 중복 확인
  Future<bool> checkDuplicateUsername(String username) async {
    try {
      final response = await _apiClient.get(
        '/users/check-duplicate',
        queryParameters: {'username': username},
      );

      return response.data['is_duplicate'] ?? false;
    } on DioException catch (e) {
      throw ApiException(
        message: e.response?.data['message'] ?? '중복 확인에 실패했습니다',
        statusCode: e.response?.statusCode,
      );
    }
  }

  /// 사용자 검색
  Future<UserListDto> searchUsers({
    required String query,
    int? companyId,
    String? status,
    String? permissionLevel,
    int page = 1,
    int perPage = 20,
  }) async {
    try {
      final queryParams = {
        'q': query,
        'page': page,
        'per_page': perPage,
        if (companyId != null) 'company_id': companyId,
        if (status != null) 'status': status,
        if (permissionLevel != null) 'permission_level': permissionLevel,
      };

      final response = await _apiClient.get(
        '/users/search',
        queryParameters: queryParams,
      );

      return UserListDto.fromJson(response.data);
    } on DioException catch (e) {
      throw ApiException(
        message: e.response?.data['message'] ?? '사용자 검색에 실패했습니다',
        statusCode: e.response?.statusCode,
      );
    }
  }
}