import 'dart:convert';
import 'package:dio/dio.dart';
import 'package:get_it/get_it.dart';
import '../../../../core/consts/http_api_consts.dart';
import '../../../../core/logging/i_logger_service.dart';
import '../../domain/entities/device_schedule_plan_entity.dart';
import '../models/device_task_model.dart';

abstract class DeviceTaskDatasource {
  Future<List<DeviceTaskModel>> getDeviceTaskPool({
    required String userId,
    required int siteId,
    required int orgId,
    int pageNum = 1,
    int pageSize = 99999999,
  });

  Future<bool> cancelTask({
    required String deviceId,
    required int taskId,
    required int orgId,
    required int siteId,
    bool forceCancel = true,
  });

  Future<bool> pauseTask({
    required String deviceId,
    required int taskId,
    required int orgId,
    required int siteId,
  });

  Future<Map<String, dynamic>> recoveryTask({
    required String deviceId,
    required int taskId,
    required int orgId,
    required int siteId,
  });

  /// 创建设备定时任务（定时作业计划）POST /iot/deviceTask/save
  /// 周期规则报文组装封在实现内，调用方只交业务实体
  Future<bool> saveDeviceSchedulePlan({required DeviceSchedulePlanEntity plan});
}

class DeviceTaskDatasourceImpl implements DeviceTaskDatasource {
  final Dio dio;
  final ILoggerService _logger = GetIt.I<ILoggerService>();

  DeviceTaskDatasourceImpl(this.dio);

  @override
  Future<List<DeviceTaskModel>> getDeviceTaskPool({
    required String userId,
    required int siteId,
    required int orgId,
    int pageNum = 1,
    int pageSize = 99999999,
  }) async {
    try {
      final url = '${HttpApiConsts.baseUrl}/iot/deviceTask/deviceTaskPool';
      _logger.logWithLevel('[getDeviceTaskPool] 请求: POST $url', shouldLog: true);
      _logger.logWithLevel('[getDeviceTaskPool] 参数: userId=$userId, siteId=$siteId, orgId=$orgId, pageNum=$pageNum, pageSize=$pageSize', shouldLog: true);
      final response = await dio.post(
        url,
        data: {
          'userId': userId,
          'siteId': siteId,
          'orgId': orgId,
          'pageNum': pageNum,
          'pageSize': pageSize,
        },
      );

      if (response.statusCode == 200) {
        final data = response.data as Map<String, dynamic>;
        if (data['code'] == 200) {
          final rows = data['rows'] as List? ?? [];
          _logger.logWithLevel('[getDeviceTaskPool] 返回任务 ${rows.length} 条', shouldLog: true);
          return rows
              .map((item) => DeviceTaskModel.fromJson(item as Map<String, dynamic>))
              .toList();
        } else {
          throw Exception(data['msg'] ?? '获取任务池失败');
        }
      } else {
        throw Exception('HTTP ${response.statusCode}');
      }
    } catch (e) {
      _logger.logWithLevel('❌ 获取任务池失败: $e');
      rethrow;
    }
  }

  @override
  Future<bool> cancelTask({
    required String deviceId,
    required int taskId,
    required int orgId,
    required int siteId,
    bool forceCancel = true,
  }) async {
    final url = '${HttpApiConsts.baseUrl}/iot/deviceTask/cancelTask';
    final body = {
      'taskId': taskId,
      'siteId': siteId,
      'orgId': orgId,
      'forceCancel': forceCancel,
    };
    _logger.logWithLevel('[cancelTask] 请求: POST $url');
    _logger.logWithLevel('[cancelTask] 参数: ${jsonEncode(body)}');
    try {
      final response = await dio.post(url, data: body);
      _logger.logWithLevel('[cancelTask] 响应: statusCode=${response.statusCode}, body=${jsonEncode(response.data)}');

      if (response.statusCode == 200) {
        final data = response.data as Map<String, dynamic>;
        if (data['code'] == 200) {
          _logger.logWithLevel('[cancelTask] 结果: 成功');
          return data['data'] as bool? ?? false;
        } else {
          _logger.logWithLevel('[cancelTask] 业务失败: code=${data['code']}, msg=${data['msg']}');
          throw Exception(data['msg'] ?? '取消任务失败');
        }
      } else {
        throw Exception('HTTP ${response.statusCode}');
      }
    } catch (e) {
      _logger.logWithLevel('[cancelTask] 异常: $e');
      rethrow;
    }
  }

  @override
  Future<bool> pauseTask({
    required String deviceId,
    required int taskId,
    required int orgId,
    required int siteId,
  }) async {
    final url = '${HttpApiConsts.baseUrl}/iot/deviceTask/pauseTask';
    final body = {
      'deviceId': deviceId,
      'taskId': taskId,
      'orgId': orgId,
      'siteId': siteId,
    };
    _logger.logWithLevel('[pauseTask] 请求: POST $url');
    _logger.logWithLevel('[pauseTask] 参数: ${jsonEncode(body)}');
    try {
      final response = await dio.post(url, data: body);
      _logger.logWithLevel('[pauseTask] 响应: statusCode=${response.statusCode}, body=${jsonEncode(response.data)}');

      if (response.statusCode == 200) {
        final data = response.data as Map<String, dynamic>;
        if (data['code'] == 200) {
          _logger.logWithLevel('[pauseTask] 结果: 成功');
          return data['data'] as bool? ?? false;
        } else {
          _logger.logWithLevel('[pauseTask] 业务失败: code=${data['code']}, msg=${data['msg']}');
          throw Exception(data['msg'] ?? '暂停任务失败');
        }
      } else {
        throw Exception('HTTP ${response.statusCode}');
      }
    } catch (e) {
      _logger.logWithLevel('[pauseTask] 异常: $e');
      rethrow;
    }
  }

  @override
  Future<Map<String, dynamic>> recoveryTask({
    required String deviceId,
    required int taskId,
    required int orgId,
    required int siteId,
  }) async {
    final url = '${HttpApiConsts.baseUrl}/iot/deviceTask/recoveryTask';
    final body = {
      'deviceId': deviceId,
      'taskId': taskId,
      'orgId': orgId,
      'siteId': siteId,
    };
    _logger.logWithLevel('[recoveryTask] 请求: POST $url');
    _logger.logWithLevel('[recoveryTask] 参数: ${jsonEncode(body)}');
    try {
      final response = await dio.post(url, data: body);
      _logger.logWithLevel('[recoveryTask] 响应: statusCode=${response.statusCode}, body=${jsonEncode(response.data)}');

      if (response.statusCode == 200) {
        final data = response.data as Map<String, dynamic>;
        if (data['code'] == 200) {
          _logger.logWithLevel('[recoveryTask] 结果: 成功, data=${jsonEncode(data['data'])}');
          return data['data'] as Map<String, dynamic>? ?? {};
        } else {
          _logger.logWithLevel('[recoveryTask] 业务失败: code=${data['code']}, msg=${data['msg']}');
          throw Exception(data['msg'] ?? '恢复任务失败');
        }
      } else {
        throw Exception('HTTP ${response.statusCode}');
      }
    } catch (e) {
      _logger.logWithLevel('[recoveryTask] 异常: $e');
      rethrow;
    }
  }

  @override
  Future<bool> saveDeviceSchedulePlan({
    required DeviceSchedulePlanEntity plan,
  }) async {
    final url = '${HttpApiConsts.baseUrl}/iot/deviceTask/save';
    final body = _schedulePlanBody(plan);
    _logger.logWithLevel('[saveDeviceSchedulePlan] 请求: POST $url', shouldLog: true);
    _logger.logWithLevel('[saveDeviceSchedulePlan] 参数: ${jsonEncode(body)}', shouldLog: true);
    try {
      final response = await dio.post(url, data: body);
      _logger.logWithLevel('[saveDeviceSchedulePlan] 响应: statusCode=${response.statusCode}, body=${jsonEncode(response.data)}', shouldLog: true);

      if (response.statusCode == 200) {
        final data = response.data as Map<String, dynamic>;
        if (data['code'] == 200) {
          // 保存接口返回数量（如 data: 1），同时兼容布尔值及无 data 的成功响应。
          final saved = switch (data['data']) {
            bool value => value,
            num value => value > 0,
            _ => true,
          };
          _logger.logWithLevel(
            '[saveDeviceSchedulePlan] 结果: ${saved ? '成功' : '未保存'}',
            shouldLog: true,
          );
          return saved;
        } else {
          _logger.logWithLevel('[saveDeviceSchedulePlan] 业务失败: code=${data['code']}, msg=${data['msg']}', shouldLog: true);
          throw Exception(data['msg'] ?? '创建定时计划失败');
        }
      } else {
        throw Exception('HTTP ${response.statusCode}');
      }
    } catch (e) {
      _logger.logWithLevel('[saveDeviceSchedulePlan] 异常: $e', shouldLog: true);
      rethrow;
    }
  }

  /// 业务实体 → 后端报文：字段名 / DAY・WEEK・MONTH 枚举字面量 /
  /// days・dates 条件结构 / 时间格式，全部封在数据层，不外泄到 domain。
  static Map<String, dynamic> _schedulePlanBody(DeviceSchedulePlanEntity p) {
    // 下标 = weekday.value - 1（周一~周日）
    const List<String> weekdayWire = <String>[
      'MONDAY',
      'TUESDAY',
      'WEDNESDAY',
      'THURSDAY',
      'FRIDAY',
      'SATURDAY',
      'SUNDAY',
    ];
    String pad(int value) => value.toString().padLeft(2, '0');
    String dateText(DateTime d) =>
        '${d.year}-${pad(d.month)}-${pad(d.day)}';

    return <String, dynamic>{
      'deviceId': p.deviceId,
      'orgId': p.orgId,
      'planName': p.planName.trim(),
      'routeId': p.routeId,
      'siteId': p.siteId,
      'deviceTaskPlanRules': <String, dynamic>{
        'type': switch (p.type) {
          WorkScheduleType.day => 'DAY',
          WorkScheduleType.week => 'WEEK',
          WorkScheduleType.month => 'MONTH',
        },
        if (p.type == WorkScheduleType.week)
          'days': <String>[
            for (final Weekday w in p.days) weekdayWire[w.value - 1],
          ],
        if (p.type == WorkScheduleType.month) 'dates': p.dates,
        'dayTime': '${pad(p.dayHour)}:${pad(p.dayMinute)}:00',
      },
      'startTime': '${dateText(p.startDate)} 00:00:00',
      'finishTime': '${dateText(p.endDate)} 23:59:59',
    };
  }
}