/*
 * Project: Go CLI Tool
 * Category: Go Projects
 * Description: Command-line interface tool built with Go. Features file operations, text processing, command parsing, and system utilities.
 * Author: RSK World
 * Email: support@rskworld.in
 * Website: https://rskworld.in/contact.php
 * Year: 2026
 * Copyright (c) 2026 RSK World. All rights reserved.
 */

package utils

import (
	"bufio"
	"fmt"
	"os"
	"os/exec"
	"strings"

	"go-cli-tool/internal/ui"
)

// StartInteractiveMode launches a REPL loop for the tool.
func StartInteractiveMode() {
	scanner := bufio.NewScanner(os.Stdin)
	ui.Banner()
	ui.Info("Entering Interactive Mode. Type 'exit' or 'quit' to leave.")
	
	for {
		fmt.Print("go-cli> ")
		if !scanner.Scan() {
			break
		}

		line := scanner.Text()
		args := strings.Fields(line)

		if len(args) == 0 {
			continue
		}

		cmdName := args[0]
		if cmdName == "exit" || cmdName == "quit" {
			ui.Info("Goodbye!")
			break
		}

		// Self-execution for interactive mode commands
		// Note: This relies on the binary being built or running via 'go run main.go'
		// In a real bin, we'd use os.Executable()
		cmd := exec.Command("go", append([]string{"run", "main.go"}, args...)...)
		cmd.Stdout = os.Stdout
		cmd.Stderr = os.Stderr
		
		err := cmd.Run()
		if err != nil {
			ui.Error(fmt.Sprintf("Command failed: %v", err))
		}
	}
}