package main

import (
	"flag"
	"fmt"
	"github.com/kardianos/service"
	"LAPP_PRN_Service/common"
	"LAPP_PRN_Service/config"
	"LAPP_PRN_Service/db"
	Engine "LAPP_PRN_Service/engine"
	"LAPP_PRN_Service/glog"
	"log"
	"os"
	"path/filepath"
)

//基于windows系统服务器，安装成服务

type program struct{}

func (p *program) Start(s service.Service) error {
	// Start should not block. Do the actual work async.
	go p.run()
	return nil
}
func (p *program) run() {
	imain()
}
func (p *program) Stop(s service.Service) error {
	return nil
}

func main() {
	svcConfig := &service.Config{
		Name:        "printer",
		DisplayName: "printer",
		Description: "this is printer",
	}

	prg := &program{}
	s, err := service.New(prg, svcConfig)
	if err != nil {
		log.Fatal(err)
	}
	if len(os.Args) > 1 {
		verb := os.Args[1]
		switch verb {
		case "install":
			s.Install()
			log.Println("服务安装成功")
			return
		case "remove":
			s.Uninstall()
			log.Println("服务卸载成功")
			return
		case "start":
			s.Start()
			log.Println("服务启动")
			return
		case "stop":
			s.Stop()
			log.Println("服务暂停")
			return
		}

	}
	err = s.Run()
	if err != nil {
		log.Println(err)
	}
}

/**系统入口函数，按项目依次启动TOD、SEQ、REORDER、CALLOFF的解析服务**/
func imain() {
	//初始化日志
	baseDir := ""
	flag.StringVar(&baseDir, "dir", "log", "running in a directory")
	flag.Parse()

	defer glog.Flush()
	pathLogDir := filepath.Join(baseDir, "glog")
	//备注，因为是打包成windows服务，路径需要转义
	pathLogDir, err := common.GetCurrentPath(pathLogDir)
	if err != nil {
		log.Printf("failed pathLogDir due to: %v", err)
		return
	}
	glog.DefaultInit(true, pathLogDir)

	glog.Infoln("启动日志", "InitDB return success")

	//加载配置
	path, err := common.GetCurrentPath("config/config.yaml")
	if err != nil {
		log.Printf("failed to read yaml config due to: %v", err)
		return
	}
	fmt.Println(path)
	conf, err := config.ReadYamlConfig(path)
	if err != nil {
		log.Printf("failed to read yaml config due to: %v", err)
		return
	}

	//初始化数据库
	connstring := fmt.Sprintf("server=%s;user id=%s;password=%s;database=%s;port=%d;encrypt=disable",
		conf.Server, conf.User, conf.Password, conf.DbName, conf.Port)

	fmt.Println(connstring)
	if err := db.InitMssqlDb(connstring); err != nil {
		glog.Infoln("初始化数据库", "InitMssqlDb return fail")
		return
	}
	//打印服务
	Engine.RunEngine(conf)
}