package cmd

import (
	"bytes"
	"context"
	"fmt"
	"os/exec"
	"time"

	"github.com/1Panel-dev/1Panel/backend/buserr"
	"github.com/1Panel-dev/1Panel/backend/constant"
)

func Exec(cmdStr string) (string, error) {
	ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
	defer cancel()
	cmd := exec.Command("bash", "-c", cmdStr)
	var stdout, stderr bytes.Buffer
	cmd.Stdout = &stdout
	cmd.Stderr = &stderr
	err := cmd.Run()
	if ctx.Err() == context.DeadlineExceeded {
		return "", buserr.New(constant.ErrCmdTimeout)
	}
	if err != nil {
		errMsg := ""
		if len(stderr.String()) != 0 {
			errMsg = fmt.Sprintf("stderr: %s", stderr.String())
		}
		if len(stdout.String()) != 0 {
			if len(errMsg) != 0 {
				errMsg = fmt.Sprintf("%s; stdout: %s", errMsg, stdout.String())
			} else {
				errMsg = fmt.Sprintf("stdout: %s", stdout.String())
			}
		}
		return errMsg, err
	}
	return stdout.String(), nil
}

func ExecWithTimeOut(cmdStr string, timeout time.Duration) (string, error) {
	ctx, cancel := context.WithTimeout(context.Background(), timeout)
	defer cancel()
	cmd := exec.Command("bash", "-c", cmdStr)
	var stdout, stderr bytes.Buffer
	cmd.Stdout = &stdout
	cmd.Stderr = &stderr
	err := cmd.Run()
	if ctx.Err() == context.DeadlineExceeded {
		return "", buserr.New(constant.ErrCmdTimeout)
	}
	if err != nil {
		errMsg := ""
		if len(stderr.String()) != 0 {
			errMsg = fmt.Sprintf("stderr: %s", stderr.String())
		}
		if len(stdout.String()) != 0 {
			if len(errMsg) != 0 {
				errMsg = fmt.Sprintf("%s; stdout: %s", errMsg, stdout.String())
			} else {
				errMsg = fmt.Sprintf("stdout: %s", stdout.String())
			}
		}
		return errMsg, err
	}
	return stdout.String(), nil
}

func ExecCronjobWithTimeOut(cmdStr string, timeout time.Duration) (string, error) {
	ctx, cancel := context.WithTimeout(context.Background(), timeout)
	defer cancel()
	cmd := exec.Command("bash", "-c", cmdStr)
	var stdout, stderr bytes.Buffer
	cmd.Stdout = &stdout
	cmd.Stderr = &stderr
	err := cmd.Run()
	if ctx.Err() == context.DeadlineExceeded {
		return "", buserr.New(constant.ErrCmdTimeout)
	}

	errMsg := ""
	if len(stderr.String()) != 0 {
		errMsg = fmt.Sprintf("stderr:\n %s", stderr.String())
	}
	if len(stdout.String()) != 0 {
		if len(errMsg) != 0 {
			errMsg = fmt.Sprintf("%s \n\n; stdout:\n %s", errMsg, stdout.String())
		} else {
			errMsg = fmt.Sprintf("stdout\n: %s", stdout.String())
		}
	}
	return errMsg, err
}

func Execf(cmdStr string, a ...interface{}) (string, error) {
	cmd := exec.Command("bash", "-c", fmt.Sprintf(cmdStr, a...))
	var stdout, stderr bytes.Buffer
	cmd.Stdout = &stdout
	cmd.Stderr = &stderr
	err := cmd.Run()
	if err != nil {
		errMsg := ""
		if len(stderr.String()) != 0 {
			errMsg = fmt.Sprintf("stderr: %s", stderr.String())
		}
		if len(stdout.String()) != 0 {
			if len(errMsg) != 0 {
				errMsg = fmt.Sprintf("%s; stdout: %s", errMsg, stdout.String())
			} else {
				errMsg = fmt.Sprintf("stdout: %s", stdout.String())
			}
		}
		return errMsg, err
	}
	return stdout.String(), nil
}

func HasNoPasswordSudo() bool {
	cmd2 := exec.Command("sudo", "-n", "ls")
	err2 := cmd2.Run()
	return err2 == nil
}

func SudoHandleCmd() string {
	cmd := exec.Command("sudo", "-n", "ls")
	if err := cmd.Run(); err == nil {
		return "sudo "
	}
	return ""
}
