package util

import (
	"os"
	"os/exec"
	"path/filepath"
	"strings"
	"time"
)

const tmpdirName = "sebrauc"

func DoesFileExist(filepath string) bool {
	_, err := os.Stat(filepath)
	return !os.IsNotExist(err)
}

func CreateDirIfNotExists(dirpath string) error {
	if _, err := os.Stat(dirpath); os.IsNotExist(err) {
		createErr := os.MkdirAll(dirpath, 0o777)
		if createErr != nil {
			return createErr
		}
	}
	return nil
}

func GetTmpdir() (string, error) {
	tmpdir := filepath.Join(os.TempDir(), tmpdirName)
	err := CreateDirIfNotExists(tmpdir)
	return tmpdir, err
}

func CommandFromString(cmdString string) *exec.Cmd {
	parts := strings.Split(cmdString, " ")
	if len(parts) == 0 {
		return exec.Command("")
	}

	//nolint:gosec
	return exec.Command(parts[0], parts[1:]...)
}

func Reboot(t time.Duration) {
	time.Sleep(t)
	cmd := CommandFromString(RebootCmd)
	_ = cmd.Run()
}