<?php

namespace UCore\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\File;

/**
 * 生成 app 目录的文件树并保存到 app/tree.md
 */
class GenerateAppTreeCommand extends Command
{
    /**
     * 命令的名称和签名。
     *
     * @var string
     */
    protected $signature = 'ucore:generate-apptree';

    /**
     * 命令的描述。
     *
     * @var string
     */
    protected $description = '生成 app 目录的文件树并保存到 app/tree.md';

    /**
     * 执行控制台命令。
     *
     * @return int
     */
    public function handle()
    {
        $appPath = base_path('app');
        $outputFile = base_path('app/tree.md');

        $tree = $this->generateDirectoryTree($appPath);

        File::put($outputFile, $tree);

        $this->info('File tree generated successfully at app/tree.md');

        return Command::SUCCESS;
    }

    /**
     * 生成目录树结构为字符串
     *
     * @param string $directory 目录路径
     * @param string $prefix 前缀，用于格式化输出
     * @return string 返回目录树的字符串表示
     */
    private function generateDirectoryTree(string $directory, string $prefix = ''): string
    {
        $tree = '';
        $files = scandir($directory);

        foreach ($files as $file) {
            if ($file === '.' || $file === '..') {
                continue;
            }

            $filePath = $directory . DIRECTORY_SEPARATOR . $file;
            $tree .= $prefix . $file . "\n";

            if (is_dir($filePath)) {
                $tree .= $this->generateDirectoryTree($filePath, $prefix . '    ');
            }
        }

        return $tree;
    }
}