package executor

import (
	"fmt"
	"os"
	"os/exec"
	"strings"
	"syscall"
)

func Execute(command string) error {
	parts := parseCommand(command)
	if len(parts) == 0 {
		return fmt.Errorf("empty command")
	}

	cmd := exec.Command(parts[0], parts[1:]...)
	cmd.Stdin = os.Stdin
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr

	if err := cmd.Run(); err != nil {
		if exitErr, ok := err.(*exec.ExitError); ok {
			if status, ok := exitErr.Sys().(syscall.WaitStatus); ok {
				os.Exit(status.ExitStatus())
			}
		}
		return fmt.Errorf("command failed: %w", err)
	}
	return nil
}

func parseCommand(command string) []string {
	var parts []string
	var current strings.Builder
	var inSingleQuote, inDoubleQuote bool

	for _, r := range command {
		switch {
		case r == '\'' && !inDoubleQuote:
			inSingleQuote = !inSingleQuote
		case r == '"' && !inSingleQuote:
			inDoubleQuote = !inDoubleQuote
		case r == ' ' && !inSingleQuote && !inDoubleQuote:
			if current.Len() > 0 {
				parts = append(parts, current.String())
				current.Reset()
			}
		default:
			current.WriteRune(r)
		}
	}

	if current.Len() > 0 {
		parts = append(parts, current.String())
	}

	return parts
}