package com.ruoyi.alarm.globalAlarm.domain;

import lombok.extern.slf4j.Slf4j;

import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
import java.util.PriorityQueue;
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
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> NumDescCom = Comparator.comparingInt(GuideTask::getNum).reversed();
        Comparator<GuideTask> alarmTimeAscCom = Comparator.comparing(GuideTask::getAlarmTime);
        Comparator<GuideTask> Comparator = PriorityDescCom.thenComparing(NumDescCom).thenComparing(alarmTimeAscCom);
        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);
            for (GuideTask task : priorityQueue) {
                log.info("alarmId:" + task.getAlarmId() + "  alarmTime:" + task.getAlarmTime() + "  priority:" + task.getPriority() + "  num:" + task.getNum() + "  cameraId:" + task.getCameraId());
            }
        }
    }
}