import 'package:path/path.dart' as path;
import 'package:dio/dio.dart';
import 'package:sino_med_cloud/core/constants/api_constants.dart';
import 'package:sino_med_cloud/core/network/dio_client.dart';
import 'package:sino_med_cloud/core/storage/local_storage.dart';
import 'package:sino_med_cloud/core/utils/logger.dart';
import '../data/auth_model.dart';

/// 登录服务类
class LoginService {
  /// 密码登录
  ///
  /// [mobile] 手机号
  /// [password] 密码（已加密）
  /// [loginSystem] 登录系统标识
  /// [loginType] 登录类型
  ///
  /// 返回 [AuthModel] 认证模型，如果登录失败则抛出异常
  static Future<AuthModel> passwordLogin({
    required String mobile,
    required String password,
    required String loginSystem,
    required String loginType,
  }) async {
    try {
      final parame = {
        "mobile": mobile,
        "login_system": loginSystem,
        "password": password,
        "login_type": loginType,
      };
      AppLogger.d('密码登录请求参数: $parame');

      final response = await DioClient.post<Map<String, dynamic>>(
        path.join(ApiConstants.baseUrl, ApiConstants.login),
        fromJsonT: (json) => json as Map<String, dynamic>,
        data: parame,
      );

      if (response.success && response.code == 20000) {
        AppLogger.d('密码登录成功: ${response.data}');
        final jsonData = response.data!;
        
        // 解析为 AuthModel
        final authModel = AuthModel.fromJson(jsonData);
        
        // 保存到本地存储
        await _saveAuthData(authModel);
        
        return authModel;
      } else {
        final errorMsg = response.msg ?? '登录失败';
        AppLogger.d('密码登录失败: $errorMsg');
        throw Exception(errorMsg);
      }
    } catch (e) {
      AppLogger.e('密码登录错误', e);
      rethrow;
    }
  }

  /// 发送验证码
  ///
  /// [mobile] 手机号
  /// [scope] 验证码作用域，默认为 "yun-his-login-sms-send"
  ///
  /// 返回验证码字符串，如果发送失败则抛出异常
  static Future<String> sendSmsCode({
    required String mobile,
    String scope = "yun-his-login-sms-send",
  }) async {
    try {
      final parame = {
        "mobile": mobile,
        "scope": scope,
      };
      AppLogger.d('发送验证码请求参数: $parame');

      final response = await DioClient.post<Map<String, dynamic>>(
        path.join(ApiConstants.baseUrl, ApiConstants.sendSmsCode),
        fromJsonT: (json) => json as Map<String, dynamic>,
        data: parame,
      );

      if (response.success && response.code == 20000) {
        AppLogger.d('发送验证码成功: ${response.data}');
        final jsonData = response.data!;
        final smsCode = jsonData['code'] as String;
        return smsCode;
      } else {
        final errorMsg = response.msg ?? '发送验证码失败';
        AppLogger.d('发送验证码失败: $errorMsg');
        throw Exception(errorMsg);
      }
    } catch (e) {
      AppLogger.e('发送验证码错误', e);
      rethrow;
    }
  }

  /// 验证码登录
  ///
  /// [mobile] 手机号
  /// [smsCode] 验证码
  /// [loginSystem] 登录系统标识
  /// [loginType] 登录类型
  ///
  /// 返回 [AuthModel] 认证模型，如果登录失败则抛出异常
  static Future<AuthModel> smsLogin({
    required String mobile,
    required String smsCode,
    required String loginSystem,
    required String loginType,
  }) async {
    try {
      final parame = {
        "mobile": mobile,
        "sms_code": smsCode,
        "login_system": loginSystem,
        "login_type": loginType,
      };
      AppLogger.d('验证码登录请求参数: $parame');

      final response = await DioClient.post<Map<String, dynamic>>(
        path.join(ApiConstants.baseUrl, ApiConstants.login),
        fromJsonT: (json) => json as Map<String, dynamic>,
        data: parame,
      );

      if (response.success && response.code == 20000) {
        AppLogger.d('验证码登录成功: ${response.data}');
        final jsonData = response.data!;
        
        // 解析为 AuthModel
        final authModel = AuthModel.fromJson(jsonData);
        
        // 保存到本地存储
        await _saveAuthData(authModel);
        
        return authModel;
      } else {
        final errorMsg = response.msg ?? '登录失败';
        AppLogger.d('验证码登录失败: $errorMsg');
        throw Exception(errorMsg);
      }
    } catch (e) {
      AppLogger.e('验证码登录错误', e);
      rethrow;
    }
  }

  /// 保存认证数据到本地存储
  static Future<void> _saveAuthData(AuthModel authModel) async {
    // 保存 Token（会自动初始化）
    await LocalStorage.saveToken(authModel.accessToken);
    
    // 保存用户信息（会自动初始化）
    await LocalStorage.saveUserInfo(authModel.userInfo.toJson());
    
    // 保存机构信息列表（会自动初始化）
    final institutionInfoList = authModel.institutionInfo
        .map((item) => item.toJson())
        .toList();
    await LocalStorage.saveInstitutionInfo(institutionInfoList);
  }
}