package monitors

import (
	"github.com/robfig/cron/v3"
	"log"
)

type FileMonitor struct {
	Directory         string
	FilenameExtension string
	MonitorHelper
}

func (the *FileMonitor) Initial() {
	the.Cron = cron.New()
	log.Printf("文件目录监听 cronStr=%s", the.CronStr)

}

func (the *FileMonitor) Subscribe(task func()) {
	entryID, err := the.Cron.AddFunc(the.CronStr, task)
	if err != nil {
		log.Printf("cron 定时任务[%v]添加异常：%s", entryID, err.Error())
	}
	the.Cron.Start()
}

func FileMonitorInitial(Directory string, FilenameExtension string, cron string) *FileMonitor {
	fileMonitorHelper := FileMonitor{
		Directory:         Directory,
		FilenameExtension: FilenameExtension,
		MonitorHelper: MonitorHelper{
			CronStr: cron,
		},
	}

	fileMonitorHelper.Initial()

	return &fileMonitorHelper
}