package Docker

import (
	"context"
	"github.com/docker/docker/api/types/container"
	"github.com/docker/docker/client"
	"regexp"
	"sync"
	"time"
)

var OnlineContainerID map[string]container.Summary
var OnlineContainerMux sync.RWMutex
var isMonitoring bool
var monitorTimer *time.Timer
var debounceDuration = 5 * time.Second // 设置消抖时间为5秒

func DockerOnlineContainer() {
	if isMonitoring {
		return
	}
	isMonitoring = true
	ctx := context.Background()
	cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
	if err != nil {
		return
	}
	// 查看正在运行的容器
	containers, err := cli.ContainerList(ctx, container.ListOptions{})
	if err != nil {
		return
	}
	OnlineContainerMux.Lock()
	OnlineContainerID = make(map[string]container.Summary)
	compile, err := regexp.Compile("business-go")
	if err != nil {
		return
	}

	for _, info := range containers {
		if !compile.MatchString(info.Image) {
			continue
		}
		OnlineContainerID[info.ID] = info
	}
	OnlineContainerMux.Unlock()
	if monitorTimer != nil {
		monitorTimer.Stop()
	}
	monitorTimer = time.AfterFunc(debounceDuration, func() {
		isMonitoring = false
	})
	return
}