package com.ruoyi.alarm.global.domain;

import lombok.extern.slf4j.Slf4j;

import java.util.*;
import java.util.concurrent.PriorityBlockingQueue;

/**
 * @Description: 引导优先级队列
 * @ClassName: PriorityQueue
 * @Author: 刘苏义
 * @Date: 2023年06月29日11:18
 * @Version: 1.0
 **/
@Slf4j(topic = "guideQueue")
public class GuidePriorityQueue {
    /**
     * 相机队列，每个相机一个优先级队列
     */
    public static Map<String, PriorityBlockingQueue<GuideTask>> cameraQueueMap = new HashMap<>();

    /**
     * 创建一个自定义的比较器，根据优先级属性进行比较
     */
    public static Comparator<GuideTask> getComparator() {
        Comparator<GuideTask> PriorityDescCom = Comparator.comparingInt(GuideTask::getPriority).reversed();
        Comparator<GuideTask> receiveTimeAscCom = Comparator.comparing(GuideTask::getReceiveTime);
        Comparator<GuideTask> Comparator = PriorityDescCom.thenComparing(receiveTimeAscCom);
        return Comparator;
    }

    /**
     * 测试使用：打印队列
     */
    public static void printPriorityQueue() {
        for (String cameraId : GuidePriorityQueue.cameraQueueMap.keySet()) {
            PriorityBlockingQueue<GuideTask> priorityQueue = GuidePriorityQueue.cameraQueueMap.get(cameraId);
            PriorityBlockingQueue<GuideTask> queue = new PriorityBlockingQueue<>(priorityQueue);
            while (queue.size() > 0) {
                GuideTask task = queue.poll();
                log.info("正在排队【cameraId】" + task.getCameraId() + "【alarmId】" + task.getAlarmId() + "【receiveTime】" + task.getReceiveTime()
                        + "【alarmType】" + task.getAlarmType() + "【priority】" + task.getPriority() + "【chanNo】" + task.getChanNo());
            }
        }
    }
}