package main

import (
	"flag"
	"fmt"
	"os"
	"rtu_linux_services/servicelib"

	"github.com/kardianos/service"
	"hnyfkj.com.cn/rtu/linux/baseapp"
)

var (
	Version   = "0.0.0.1"
	BuildTime = ""
)

type program struct {
	name  string
	webUI *WebUI
}

// Start should not block. Do the actual work async.
func (p *program) Start(s service.Service) error {
	logCfgFile, err := servicelib.EnsureDefaultLogConfig()
	if err != nil {
		return err
	}

	baseapp.InitLogger(logCfgFile)
	baseapp.Logger.Infof("App Version: %s, Build Time: %s", Version, BuildTime)

	ui, err := NewWebUI(":8080")
	if err != nil {
		return err
	}

	p.webUI = ui

	baseapp.Logger.Infof("[%s] webui starting on http :8080 ...", p.name)
	go func() {
		if err := ui.Start(); err != nil {
			baseapp.Logger.Errorf("[%s] webui stopped: %v\n!!", p.name, err)
			os.Exit(1)
		}
	}()

	return nil
}

// Stop should not block. Return with a few seconds.
func (p *program) Stop(s service.Service) error {
	if p.webUI != nil {
		return p.webUI.Stop()
	}
	return nil
}

func main() {
	baseapp.SetOptDirs(false, false, false, false)
	baseapp.InitPath()

	svcFlag := flag.String("service", "", "Control the yfkj-webui service.")
	flag.Parse()

	svcConfig := &service.Config{
		Name:        "yfkj-webui",
		DisplayName: "yfkj-webui",
		Description: "Yunfei Device Web Management UI",
		Option: map[string]any{
			"Restart": "always",
		},
	}

	servicelib.WriteVersionFile(baseapp.EXEC_DIR, Version) //-> for 升级

	prg := &program{
		name: "WebUI",
	}

	svc, err := service.New(prg, svcConfig)
	if err != nil {
		fmt.Printf("%s.service creation failed: %v\n",
			svcConfig.Name, err)
		os.Exit(1)
	}

	if *svcFlag != "" {
		if err := service.Control(svc, *svcFlag); err != nil {
			fmt.Println(err)
		}
		return
	}

	if err := svc.Run(); err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
}