<?php

namespace App\Helpers;

class LanguageHelper
{
    /**
     * Get list of available languages from public/lang directory
     * 
     * @return array Array of languages with code and name
     */
    public static function getAvailableLanguages()
    {
        $langDir = ROOT . '/public/lang';
        $languages = [];

        if (!is_dir($langDir)) {
            return [];
        }

        $files = scandir($langDir);
        foreach ($files as $file) {
            if ($file === '.' || $file === '..') continue;
            
            if (pathinfo($file, PATHINFO_EXTENSION) === 'json') {
                $code = pathinfo($file, PATHINFO_FILENAME);
                
                // Read file to get language name if defined, otherwise use code
                $content = file_get_contents($langDir . '/' . $file);
                $data = json_decode($content, true);
                
                $name = $data['_meta']['name'] ?? strtoupper($code);
                $flag = $data['_meta']['flag'] ?? '🌐';

                $languages[] = [
                    'code' => $code,
                    'name' => $name,
                    'flag' => $flag
                ];
            }
        }

        return $languages;
    }
}