package com.xiaopeng.operation.utils.mango;
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import com.xiaopeng.api.vo.automaticPilot.VehiclePosition;
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import org.springframework.data.domain.Sort;
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import org.springframework.data.geo.Point;
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import org.springframework.data.geo.Distance;
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import org.springframework.data.geo.Metrics;
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import org.springframework.data.mongodb.core.MongoTemplate;
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import org.springframework.data.mongodb.core.query.Criteria;
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import org.springframework.data.mongodb.core.query.Query;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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import java.util.List;
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@Service
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public class VehiclePositionService {
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@Resource
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private MongoTemplate mongoTemplate;
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/**
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* 查询附近指定距离内且状态正常的车辆
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* @param longitude 经度
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* @param latitude 纬度
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* @param distanceInMeters 距离（米）
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* @return 符合条件的车辆列表
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*/
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public List<VehiclePosition> findAvailableVehiclesNearby(double longitude,
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double latitude,
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double distanceInMeters,int num) {
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try {
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// 创建查询点
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Point referencePoint = new Point(longitude, latitude);
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// 构建查询条件
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Query query = new Query();
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// 地理位置查询
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query.addCriteria(Criteria.where("point")
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.near(referencePoint)
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.maxDistance(distanceInMeters));
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query.with(Sort.by(Sort.Direction.ASC, "point"));
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return mongoTemplate.find(query, VehiclePosition.class);
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}catch (Exception e){
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 根据车辆ID查询车辆信息
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* @param vehicleId 车辆ID
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* @return 车辆信息，不存在则返回null
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*/
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public VehiclePosition findByVehicleId(Long vehicleId) {
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Query query = new Query();
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query.addCriteria(Criteria.where("vehicle_id").is(vehicleId));
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return mongoTemplate.findOne(query, VehiclePosition.class);
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}
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/**
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* 所有的车辆
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*/
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public List<VehiclePosition> findAll() {
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// 构建查询条件
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Query query = new Query();
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query.addCriteria(Criteria.where("status").is(1)); // 运营中
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query.addCriteria(Criteria.where("state").is(1)); // 接单中
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// 可以添加排序，按距离排序
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query.with(Sort.by(Sort.Direction.ASC, "point"));
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return mongoTemplate.find(query, VehiclePosition.class);
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}
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}
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