package zdaemon

import (
	"fmt"
	"git.swzry.com/zry/pathutils"
	"os"
	"path"
	"strconv"
	"text/template"
)

const tpl_initd_sysv = `#!/bin/sh
# chkconfig: - {{.StartOrder}} {{.StopOrder}}
# description: {{.Description}}
# processname: {{.ExecPath}}
# Provides:          {{.ExecPath}}
# Required-Start:
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: {{.Name}}
# Description:       {{.Description}}

cmd={{ .ExecPath }}
$cmd $1
exit 0
`

func (zd *ZDaemon) install_sysv() {
	if zd.daemonConfig.InstallMode != "free" {
		fmt.Println("Failed install: already installed.")
		return
	}
	initsp := path.Join("/etc/init.d/", zd.daemonName)
	pe, _ := pathutils.PathExists(initsp)
	if pe {
		err := os.Remove(initsp)
		if err != nil {
			fmt.Println("Failed install, old file exist and error in deleting old file: ", err.Error())
			return
		}
	}
	otpl := template.New(zd.daemonName)
	tpl, err := otpl.Parse(tpl_initd_sysv)
	if err != nil {
		fmt.Println("Failed install: ", err.Error())
		return
	}
	fids, err := os.OpenFile(initsp, os.O_WRONLY|os.O_CREATE, 0777)
	if err != nil {
		fmt.Println("Failed install: ", err.Error())
		return
	}
	tdat := map[string]string{
		"StartOrder":  strconv.Itoa(zd.startOrder),
		"StopOrder":   strconv.Itoa(zd.stopOrder),
		"Description": zd.description,
		"ExecPath":    zd.executableFileName,
		"Name":        zd.daemonName,
	}
	err = tpl.Execute(fids, tdat)
	if err != nil {
		fmt.Println("Failed install: ", err.Error())
		_ = fids.Close()
		return
	}
	_ = fids.Close()
	zd.daemonConfig.InstallMode = "sysv"
	zd.writeStatus()
	fmt.Println("Installed.")
}

func (zd *ZDaemon) uninstall_sysv() {
	initsp := path.Join("/etc/init.d/", zd.daemonName)
	pe, _ := pathutils.PathExists(initsp)
	if pe {
		err := os.Remove(initsp)
		if err != nil {
			fmt.Println("Failed uninstall: ", err.Error())
			return
		}
	}
	zd.daemonConfig.InstallMode = "free"
	zd.writeStatus()
	fmt.Println("Uninstalled.")
}