import 'package:EasyDartModule/EasyDartModule.dart';
import '../model/Area.dart';
import '../const/MessageConstants.dart';

class AreaRepository {
  // 获取所有区域列表
  Future<List> fetchAreaList(Area query,
      {int page = 1, int pageSize = 10}) async {
    var db = EasyDartModule.dataBase;

    // 构建查询条件
    SelectorBuilder select = SelectorBuilder();

    // 添加查询条件
    if (query.oid != null) {
      select.eq('oid', query.oid);
    }
    if (query.id != null) {
      select.eq('area_id', query.id);
    }
    if (query.tid != null) {
      select.eq('oid', query.tid);
    }
    if (query.level != null) {
      select.gte('level', query.level);
    }
    if (query.area_name != null) {
      select.match('area_name', query.area_name!, caseInsensitive: true);
    }
    if (query.area_desc != null) {
      select.eq('area_desc', query.area_desc);
    }
    if (query.created_by_id != null) {
      select.eq('created_by_id', query.created_by_id);
    }
    if (query.updated_by_id != null) {
      select.eq('updated_by_id', query.updated_by_id);
    }
    if (query.created_at != null) {
      select.gte('created_at', query.created_at);
    }
    if (query.updated_at != null) {
      select.lte('updated_at', query.updated_at);
    }
    select.eq('deleted', 0);
    // 设置分页
    select.skip((page - 1) * pageSize).limit(pageSize);
    // 设置排序
    select.sortBy("created_at"); // 按创建时间排序

    // 执行查询
    var result = await db.query(
      'bus_area_info',
      condition: select, // 查询条件 + 分页 + 排序
    );

    if (result.isEmpty) {
      return [];
    }

    return result;
  }

  // 获取单个区域信息
  Future<Area?> fetchAreaById(int areaId) async {
    var db = EasyDartModule.dataBase;

    // 构建查询条件
    var condition = {'area_id': areaId};

    // 执行查询
    var result = await db.query(
      'bus_area_info',
      condition: condition,
    );

    if (result.isNotEmpty) {
      return Area.fromJson(result.first);
    }

    return null;
  }

  // 添加区域
  Future<bool> insertArea(Area area) async {
    var db = EasyDartModule.dataBase;
    // 执行插入操作
    var result = await db.insert('bus_area_info', area.toJson());
    // 返回是否插入成功
    return true;
  }

  // 更新区域信息
  Future<String> updateArea(String areaId, Area updatedArea) async {
    String message = "";
    var db = EasyDartModule.dataBase;
    var str = updatedArea.toJson();
    str.remove("_id");
    var updateCondition = {
      '_id': ObjectId.fromHexString(areaId),
    };
    try {
      var result = await db.update('bus_area_info', str, updateCondition);
      return message; // 返回受影响的行数
    } catch (e) {
      message = MessageConstants.UPDATE_ERROR;
      return message;
    }
  }

  // 删除区域 (逻辑删除)
  Future<String> deleteArea(String areaId) async {
    var db = EasyDartModule.dataBase;
    String message = "";
    try {
      var areaIdList = areaId.split(',');
      var objectIdList =
          areaIdList.map((id) => ObjectId.fromHexString(id)).toList();
      var condition = {
        '_id': {'\$in': objectIdList}
      }; // 使用 \$in 操作符查询多个 ID
      var update = {
        '\$set': {'deleted': 1}
      }; // 逻辑删除，只更新 deleted 字段
      var result = await db.update('bus_area_info', update, condition);
      return message; // 返回受影响的行数
    } catch (e) {
      print("Error during deleteArea: $e");
      message = MessageConstants.DELETE_ERROR;
      return message;
    }
  }

  // 获取区域数量
  Future<int> getAreaCount(Area query) async {
    var db = EasyDartModule.dataBase;

    // 构建查询条件
    SelectorBuilder select = SelectorBuilder();

    if (query.id != null) {
      select.eq('_id', query.id);
    }
    if (query.tid != null) {
      select.eq('oid', query.tid);
    }
    if (query.level != null) {
      select.gte('level', query.level);
    }
    if (query.area_name != null) {
      select.match('area_name', query.area_name!, caseInsensitive: true);
    }
    if (query.area_desc != null) {
      select.eq('area_desc', query.area_desc);
    }
    select.eq('deleted', 0);
    // 执行查询并返回计数
    var result = await db.query(
      'bus_area_info',
      condition: select,
    );

    return result.length;
  }
}