package main

import (
	"fmt"
	"github.com/tint/env"
	"hupeh.vip/pm/cmd"
	"hupeh.vip/pm/db"
	"os"
	"os/exec"
	"strconv"
)

//import (
//	"flag"
//	"fmt"
//	"log"
//	"os"
//	"os/exec"
//	"time"
//)
//
//// 移除不需要的参数
//func strip(slice []string, remove string) []string {
//	for i := 0; i < len(slice); {
//		if slice[i] == remove {
//			if i != len(slice)-1 {
//				slice = append(slice[:i], slice[i+1:]...)
//			} else {
//				slice = slice[:i]
//			}
//		} else {
//			i++
//		}
//	}
//	return slice
//}
//
//func subProcess(args []string) *exec.Cmd {
//	cmd := exec.Command(args[0], args[1:]...)
//	cmd.Stdin = os.Stdin
//	cmd.Stdout = os.Stdout
//	cmd.Stderr = os.Stderr
//	err := cmd.Start()
//	if err != nil {
//		fmt.Fprintf(os.Stderr, "[-] Error: %s\n", err)
//	}
//	return cmd
//}
//
//func main() {
//	daemon := flag.Bool("daemon", false, "run in daemon")
//	forever := flag.Bool("forever", false, "run forever")
//	flag.Parse()
//
//	// 启用守护模式
//	if *daemon {
//		subProcess(strip(os.Arguments, "-daemon"))
//		fmt.Printf("[*] Daemon running in pid: %d PPID: %d\n", os.Getpid(), os.Getppid())
//		os.Exit(0)
//	}
//
//	if *forever {
//		for {
//			cmd := subProcess(strip(os.Arguments, "-forever"))
//			fmt.Printf("[*] Forever running in pid: %d PPID: %d\n", os.Getpid(), os.Getppid())
//			if err := cmd.Wait(); err != nil {
//				fmt.Println(err)
//				os.Exit(1)
//			}
//		}
//	}
//
//	fp, _ := os.OpenFile("./dosomething.log", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
//	log.SetOutput(fp)
//	log.Printf("[*] Service running in pid: %d PPID: %d\n", os.Getpid(), os.Getppid())
//	defer log.Println("exit ...")
//	for {
//		log.Printf("DoSomething running in pid: %d PPID: %d\n", os.Getpid(), os.Getppid())
//		time.Sleep(time.Second * 5)
//	}
//}

func main() {
	env.Setup()

	switch env.String("PMT_CURRENT_FUNCTION") {
	case "start":
	case "stop":
	case "shell":
	case "list":
	default:
		runCli()
	}
}

func runCli() {
	cmd.New("pm").
		Name("pm").
		Description("description").

		// start 命令
		Command("start", "Start a program in daemon").
		Argument("[names:...string]", "file/name/id").
		Option("-w, --watch <watch:boolean>", "Watches folder changes").
		Option("-c, --cwd <cwd:string>", "Sets working directory    "+cmd.Yellow("Sets working directory")+" Sets working directory "+cmd.Yellow("Sets working directory")+" Sets working directory "+cmd.Yellow(" Sets working directory")+" Sets working directory "+cmd.Yellow("Sets working directory")+" Sets working directory "+cmd.Yellow("Sets working directory")+" End ...").
		Option("-n, --name", "Sets program name").
		Option("-e, --env", "Sets current environment name").
		Option("-i, --interpreter", "Sets interpreter name").
		Action(func(c *cmd.Command, m map[string]any, a ...any) error {
			if len(a) != 1 {
				return c.ShowHelp()
			}

			var apps []*db.App
			scripts := a[0].([]string)
			for _, script := range scripts {
				loads, err := db.ParseInput(script)
				if err != nil {
					return err
				}
				apps = append(apps, loads...)
			}

			if len(apps) == 0 {
				fmt.Println("No app found")
				return nil
			}

			for _, app := range apps {
				if app.Status == db.StatusRunning {
					fmt.Println(cmd.Yellow(app.Name), cmd.Green("running"))
					continue
				}
				if app.ID == 0 {
					if err := db.SaveApp(app); err != nil {
						fmt.Println(cmd.Yellow(app.Name), cmd.Red("failed for save"))
						return err
					}
				}
				if err := runStart(app.ID); err != nil {
					fmt.Println(cmd.Yellow(app.Name), cmd.Red("failed"))
					fmt.Println("    ", err.Error())
				}
			}
			fmt.Println("over")
			return nil
		}).

		// stop 命令
		Command("stop", "Stops a program").
		Argument("<names:...string>", "file/name/id").
		Action(func(c *cmd.Command, m map[string]any, a ...any) error {
			fmt.Println("停止程序")
			fmt.Println(a...)
			return nil
		}).

		// 执行程序
		Run()
}

func runStart(id uint) error {
	proc := subProcess(
		[]string{os.Args[0], "-id", strconv.Itoa(int(id))},
		[]string{"PMT_CURRENT_FUNCTION=start"},
	)
	return proc.Wait()
}

func subProcess(args []string, env []string) *exec.Cmd {
	cmd := exec.Command(args[0], args[1:]...)
	cmd.Env = append(os.Environ(), env...)
	cmd.Stdin = os.Stdin
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	err := cmd.Start()
	if err != nil {
		fmt.Fprintf(os.Stderr, "[-] Error: %s\n", err)
	}
	return cmd
}

// 移除不需要的参数
func strip(slice []string, remove string) []string {
	for i := 0; i < len(slice); {
		if slice[i] == remove {
			if i != len(slice)-1 {
				slice = append(slice[:i], slice[i+1:]...)
			} else {
				slice = slice[:i]
			}
		} else {
			i++
		}
	}
	return slice
}