foodie-server/ruoyi-admin/src/main/java/com/ruoyi/app/flashdelivery/service/FlashDeliveryNotificationService.java

package com.ruoyi.app.flashdelivery.service;

import com.ruoyi.app.order.dto.OrderPushBodyDto;
import com.ruoyi.app.utils.PayPush;
import com.ruoyi.app.utils.event.PushEventService;
import com.ruoyi.common.core.domain.entity.SysDictData;
import com.ruoyi.common.utils.DictUtils;
import com.ruoyi.framework.manager.AsyncManager;
import com.ruoyi.system.domain.InfoUser;
import com.ruoyi.system.domain.RiderPosition;
import com.ruoyi.system.domain.flash.FlashDeliveryOrder;
import com.ruoyi.system.mapper.InfoUserMapper;
import com.ruoyi.system.mapper.RiderPositionMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.support.TransactionSynchronization;
import org.springframework.transaction.support.TransactionSynchronizationManager;

import java.util.List;
import java.util.TimerTask;

import static com.ruoyi.system.domain.flash.FlashDeliveryStatus.ACCEPTED;
import static com.ruoyi.system.domain.flash.FlashDeliveryStatus.CANCELLED;
import static com.ruoyi.system.domain.flash.FlashDeliveryStatus.DELIVERED;
import static com.ruoyi.system.domain.flash.FlashDeliveryStatus.PICKED_UP;
import static com.ruoyi.system.domain.flash.FlashDeliveryStatus.WAITING_ACCEPTANCE;

/**
 * 闪送订单消息推送：可抢新单推符合条件的骑手，履约事件推寄件用户，取消事件推接单骑手。
 * 推送统一在事务提交后异步执行，失败仅记日志，不影响订单状态流转本身。
 */
@Service
public class FlashDeliveryNotificationService {
    private static final Logger log = LoggerFactory.getLogger(FlashDeliveryNotificationService.class);

    private static final String TITLE_KEY = "no.message.push.message";
    private static final String CONTENT_ACCEPTED = "no.message.push.delivery.personnel.receiving.order";
    private static final String CONTENT_PICKED_UP = "no.message.push.delivery.personnel.qspsz.order";
    private static final String CONTENT_DELIVERED = "no.message.push.delivery.personnel.qsysd.order";
    private static final String CONTENT_CANCELLED = "no.message.push.order.cancelled";
    private static final String CONTENT_AVAILABLE = "no.message.push.new.flash.order";
    private static final int RIDER_NOTIFICATION_LIMIT = 20;
    /** 推送 payload 的业务类型：1=外卖、2=充值，3=闪送。 */
    private static final int PUSH_TYPE_FLASH = 3;
    /** -1 表示非语音提醒；0 表示骑手新单提醒。 */
    private static final int PUSH_PAYLOAD_TYPE_NONE = -1;

    private final InfoUserMapper userMapper;
    private final PushEventService pushEventService;
    private final RiderPositionMapper riderPositionMapper;

    public FlashDeliveryNotificationService(InfoUserMapper userMapper, PushEventService pushEventService) {
        this(userMapper, pushEventService, null);
    }

    @Autowired
    public FlashDeliveryNotificationService(InfoUserMapper userMapper, PushEventService pushEventService,
                                            RiderPositionMapper riderPositionMapper) {
        this.userMapper = userMapper;
        this.pushEventService = pushEventService;
        this.riderPositionMapper = riderPositionMapper;
    }

    /** 按订单取寄件用户；订单或用户缺失时静默跳过。 */
    InfoUser senderOf(FlashDeliveryOrder order) {
        if (order == null || order.getUserId() == null) return null;
        return userMapper.selectById(order.getUserId());
    }

    /** 按订单取接单骑手；未接单（riderId 为空）或骑手缺失时静默跳过。 */
    InfoUser riderOf(FlashDeliveryOrder order) {
        if (order == null || order.getRiderId() == null) return null;
        return userMapper.selectById(order.getRiderId());
    }

    /** 向寄件用户推送指定状态文案；消息入库由通道内 PublisherEvent 完成，cid 为空时仅入库。 */
    void sendToUser(InfoUser recipient, FlashDeliveryOrder order, String status, String contentKey) {
        if (recipient == null || recipient.getUserId() == null) return;
        String orderNo = order.getOrderNo();
        String body = OrderPushBodyDto.getJson(orderNo, status, PUSH_PAYLOAD_TYPE_NONE, PUSH_TYPE_FLASH);
        AsyncManager.me().execute(new TimerTask() {
            @Override
            public void run() {
                try {
                    PayPush.userPushHandleLocal(new PayPush(), pushEventService, recipient.getUserId(),
                            recipient.getCid(), TITLE_KEY, contentKey, body, "", orderNo);
                } catch (Exception e) {
                    log.error("闪送用户推送失败，userId:{}, orderNo:{}", recipient.getUserId(), orderNo, e);
                }
            }
        });
    }

    /** 向接单骑手推送指定状态文案；与用户端一致，失败仅记日志。 */
    void sendToRider(InfoUser recipient, FlashDeliveryOrder order, String status, String contentKey) {
        sendToRider(recipient, order, status, contentKey, PUSH_PAYLOAD_TYPE_NONE);
    }

    private void sendToRider(InfoUser recipient, FlashDeliveryOrder order, String status,
                             String contentKey, int payloadType) {
        if (recipient == null || recipient.getUserId() == null) return;
        String orderNo = order.getOrderNo();
        String body = OrderPushBodyDto.getJson(orderNo, status, payloadType, PUSH_TYPE_FLASH);
        AsyncManager.me().execute(new TimerTask() {
            @Override
            public void run() {
                try {
                    PayPush.qsPushHandleLocal(new PayPush(), pushEventService, recipient.getUserId(),
                            recipient.getCid(), TITLE_KEY, contentKey, body, "", orderNo);
                } catch (Exception e) {
                    log.error("闪送骑手推送失败，riderId:{}, orderNo:{}", recipient.getUserId(), orderNo, e);
                }
            }
        });
    }

    /** 向一名可接单骑手发送闪送新单提醒；type=0 保留骑手端新单语音语义。 */
    void sendAvailableOrderToRider(RiderPosition rider, FlashDeliveryOrder order) {
        if (rider == null || rider.getRiderId() == null) return;
        InfoUser recipient = new InfoUser();
        recipient.setUserId(rider.getRiderId());
        recipient.setCid(rider.getCid());
        sendToRider(recipient, order, WAITING_ACCEPTANCE, CONTENT_AVAILABLE, 0);
    }

    /** 订单已向骑手开放后，通知附近最多 20 名符合闪送接单条件的骑手。 */
    public void notifyAvailable(FlashDeliveryOrder order) {
        if (order == null || riderPositionMapper == null || !WAITING_ACCEPTANCE.equals(order.getStatus())
                || !Boolean.TRUE.equals(order.getIsDisplay()) || order.getRiderId() != null
                || order.getPickupLongitude() == null || order.getPickupLatitude() == null) {
            return;
        }
        runAfterCommit(() -> {
            int vehicleType = Integer.valueOf(2).equals(order.getVehicleType()) ? 2 : 1;
            List<RiderPosition> riders = riderPositionMapper.getFlashRiderNotificationList(
                    order.getPickupLongitude(), order.getPickupLatitude(), vehicleType,
                    order.getDeliveryType(), newTaskDistanceLimit(), RIDER_NOTIFICATION_LIMIT);
            if (riders != null) {
                riders.forEach(rider -> sendAvailableOrderToRider(rider, order));
            }
        });
    }

    /** 骑手抢单成功后通知寄件用户；未解析到寄件用户时跳过。 */
    public void notifyAccepted(FlashDeliveryOrder order) {
        runAfterCommit(() -> {
            InfoUser sender = senderOf(order);
            if (sender != null) sendToUser(sender, order, ACCEPTED, CONTENT_ACCEPTED);
        });
    }

    /** 骑手取件成功后通知寄件用户；未解析到寄件用户时跳过。 */
    public void notifyPickedUp(FlashDeliveryOrder order) {
        runAfterCommit(() -> {
            InfoUser sender = senderOf(order);
            if (sender != null) sendToUser(sender, order, PICKED_UP, CONTENT_PICKED_UP);
        });
    }

    /** 骑手送达后通知寄件用户；未解析到寄件用户时跳过。 */
    public void notifyDelivered(FlashDeliveryOrder order) {
        runAfterCommit(() -> {
            InfoUser sender = senderOf(order);
            if (sender != null) sendToUser(sender, order, DELIVERED, CONTENT_DELIVERED);
        });
    }

    /** 订单取消后通知接单骑手；未接单（无骑手归属）或骑手缺失时跳过，寄件用户不推。 */
    public void notifyCancelled(FlashDeliveryOrder order) {
        runAfterCommit(() -> {
            InfoUser rider = riderOf(order);
            if (rider != null) sendToRider(rider, order, CANCELLED, CONTENT_CANCELLED);
        });
    }

    /** 仅事务提交后执行推送准备；无事务同步时（单测）直接执行。 */
    static void runAfterCommit(Runnable action) {
        if (!TransactionSynchronizationManager.isSynchronizationActive()) {
            action.run();
            return;
        }
        TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronization() {
            @Override
            public void afterCommit() {
                action.run();
            }
        });
    }

    private Integer newTaskDistanceLimit() {
        try {
            List<SysDictData> values = DictUtils.getDictCache("sys_qs_newtask_distance");
            if (values != null && !values.isEmpty()) {
                int limit = Integer.parseInt(values.get(0).getDictValue());
                return limit > 0 ? limit : null;
            }
        } catch (Exception ignored) {
            // 与骑手新任务列表保持一致：缺失或非法配置时不限制距离。
        }
        return null;
    }
}