<?php

// Languages plugin - translation loading and filtering

function loadTranslations(string $lang): array {
    $defaultTranslationFile = dirname(__DIR__, 2) . "/default/languages/$lang.ini";
    $customTranslationFile = dirname(__DIR__, 3) . "/custom/languages/$lang.ini";
    
    $translations = [];
    
    if (file_exists($defaultTranslationFile)) {
        $translations = parse_ini_file($defaultTranslationFile) ?: [];
    }
    
    if (file_exists($customTranslationFile)) {
        $customTranslations = parse_ini_file($customTranslationFile) ?: [];
        $translations = array_merge($translations, $customTranslations);
    }
    
    return $translations;
}

function shouldHideUntranslated(): bool {
    $configFile = file_exists(__DIR__ . '/../../../custom/config.ini')
        ? __DIR__ . '/../../../custom/config.ini'
        : __DIR__ . '/../../config.ini';
    
    if (!file_exists($configFile)) return true;
    
    $config = parse_ini_file($configFile, true);
    return !isset($config['languages']['show_untranslated']) 
        || $config['languages']['show_untranslated'] !== 'true';
}

function hasLanguageMetadata(string $dirPath, string $lang): bool {
    $metadataFile = "$dirPath/metadata.ini";
    if (!file_exists($metadataFile)) return false;
    
    $metadata = parse_ini_file($metadataFile, true);
    if (!$metadata) return false;
    
    if (!isset($metadata[$lang]) || !is_array($metadata[$lang])) return false;
    
    // Check if language section has meaningful content (title or summary)
    return isset($metadata[$lang]['title']) || isset($metadata[$lang]['summary']);
}

function hasLanguageContent(string $dirPath, string $lang, array $contentExtensions): bool {
    if (!is_dir($dirPath)) return false;
    
    $files = scandir($dirPath) ?: [];
    foreach ($files as $file) {
        $ext = pathinfo($file, PATHINFO_EXTENSION);
        if (!in_array($ext, $contentExtensions)) continue;
        
        $parts = explode('.', $file);
        if (count($parts) >= 3) {
            $fileLang = $parts[count($parts) - 2];
            if ($fileLang === $lang && is_file("$dirPath/$file")) {
                return true;
            }
        }
    }
    return false;
}

function formatDate(string $dateString, string $lang): string {
    if (!preg_match('/^(\d{4})-(\d{2})-(\d{2})/', $dateString, $matches)) {
        return $dateString;
    }
    
    $translations = loadTranslations($lang);
    $day = (int)$matches[3];
    $monthIndex = (int)$matches[2] - 1;
    $year = $matches[1];
    
    if (isset($translations['months'])) {
        $months = array_map('trim', explode(',', $translations['months']));
        $month = $months[$monthIndex] ?? $matches[2];
    } else {
        $month = $matches[2];
    }
    
    return "$day. $month $year";
}