package com.sandu.ximon.admin.utils;

import org.apache.commons.lang.RandomStringUtils;
import org.springframework.context.annotation.Configuration;

import java.util.concurrent.TimeUnit;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CountDownLatch;

/**
 * @author LiuHaoNan
 * @date 2022/9/6
 */
@Configuration
public class CountDownLatchUtil {
    private static Map<String, CountDownLatch> data = new HashMap<>();

    public void countDown(String id) {
        if (data != null && data.get(id) != null) {
            data.get(id).countDown();
        }
    }

    public void push(String id, CountDownLatch countDownLatch) {
        if (data != null) {
            data.put(id, countDownLatch);
        }
    }

    /**
     * 删除CountDown
     * @param id
     * @param countDownLatch  对象
     * @param timeout  等待时间
     */
    public void remove(String id, CountDownLatch countDownLatch, int timeout) {
        if (countDownLatch == null) {
            return;
        }
        try {
            countDownLatch.await(timeout, TimeUnit.MILLISECONDS);
            if (data != null) {
                data.remove(id);
            }
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 没有等待时间的删除
     * @param id
     */
    public void remove(String id) {
        if (data != null) {
            data.remove(id);
        }
    }

    public CountDownResultUtil createCoutDown(int times) {
        CountDownLatchUtil countDownLatchUtil = new CountDownLatchUtil();
        CountDownLatch countDownLatch = new CountDownLatch(times);
        //获取一个7位随机数
        String str = RandomStringUtils.randomAlphanumeric(7);
        countDownLatchUtil.push(str, countDownLatch);
        return new CountDownResultUtil(str, countDownLatch);
    }
}