// OSGOS reg client
// =======================================================================================================
// Author: LLC Texnico <main@texnico.ru>
// All rights reserved
// Russia, Chelyabinsk, 2022-2024

package services

import (
	"fmt"
	log "github.com/sirupsen/logrus"
	"os"
	"reg-client/common"
	"reg-client/components/regs"
	"runtime/debug"
	"time"
)

var (
	stop    chan bool
	counter = 0
)

func HelperService() {
	stop = make(chan bool, 1)
	go func() {
		fd, err := os.OpenFile("/dev/watchdog", os.O_WRONLY, 0)
		if err != nil {
			log.Error(err.Error())
			Shutdown()
		}
		defer func() {
			_ = fd.Close()
		}()
		for {
			if _, err := fmt.Fprintf(fd, time.Now().String()); err != nil {
				log.Error(err.Error())
				Shutdown()
			}
			time.Sleep(time.Second * 25)
		}
	}()

	for {
		select {
		case <-stop:
			return
		case <-time.After(time.Minute):
			counter++
			handleCommon()
			if counter%10 == 0 {
				log.Info("проверка лицензии")
				handleUnReg()
			}
		}
	}
}

func handleCommon() {
	common.SaveOptions()
	debug.FreeOSMemory()
}

func handleUnReg() {
	if _, err := regs.GetReg(); err != nil {
		Shutdown()
	} else {
		log.Infof("регистрация ок")
	}
}

func Stop() {
	stop <- true
	handleCommon()
}