<?php
/**
 * Ultimate WordPress Cache Purger
 * Tüm cache sistemlerini temizler
 */

// WordPress'i yükle
if (file_exists('wp-load.php')) {
    require_once('wp-load.php');
}

$results = [];
$success_count = 0;
$fail_count = 0;
$start_time = microtime(true);

// Hata raporlamayı aç
error_reporting(E_ALL);
ini_set('display_errors', 1);
set_time_limit(300);

// ==================== SUNUCU CACHE'LERİ ====================

// OPcache temizle
if (function_exists('opcache_reset')) {
    if (opcache_reset()) {
        $results[] = "✅ OPcache başarıyla temizlendi.";
        $success_count++;
    } else {
        $results[] = "❌ OPcache temizlenemedi.";
        $fail_count++;
    }
} else {
    $results[] = "⚠️ OPcache aktif değil veya erişim yok.";
}

// APCu temizle
if (function_exists('apcu_clear_cache')) {
    if (apcu_clear_cache()) {
        $results[] = "✅ APCu başarıyla temizlendi.";
        $success_count++;
    } else {
        $results[] = "❌ APCu temizlenemedi.";
        $fail_count++;
    }
} else {
    $results[] = "⚠️ APCu aktif değil veya erişim yok.";
}

// Memcache temizle
if (class_exists('Memcache')) {
    try {
        $memcache = new Memcache();
        if (@$memcache->connect('localhost', 11211)) {
            if ($memcache->flush()) {
                $results[] = "✅ Memcache başarıyla temizlendi.";
                $success_count++;
            } else {
                $results[] = "❌ Memcache temizlenemedi.";
                $fail_count++;
            }
            $memcache->close();
        } else {
            $results[] = "⚠️ Memcache sunucusuna bağlanılamadı.";
        }
    } catch (Exception $e) {
        $results[] = "❌ Memcache hatası: " . $e->getMessage();
        $fail_count++;
    }
} else {
    $results[] = "⚠️ Memcache aktif değil.";
}

// Memcached temizle
if (class_exists('Memcached')) {
    try {
        $memcached = new Memcached();
        $memcached->addServer('localhost', 11211);
        if ($memcached->flush()) {
            $results[] = "✅ Memcached başarıyla temizlendi.";
            $success_count++;
        } else {
            $results[] = "❌ Memcached temizlenemedi.";
            $fail_count++;
        }
    } catch (Exception $e) {
        $results[] = "❌ Memcached hatası: " . $e->getMessage();
        $fail_count++;
    }
} else {
    $results[] = "⚠️ Memcached aktif değil.";
}

// Redis temizle
if (class_exists('Redis')) {
    try {
        $redis = new Redis();
        if (@$redis->connect('127.0.0.1', 6379)) {
            if ($redis->flushAll()) {
                $results[] = "✅ Redis başarıyla temizlendi.";
                $success_count++;
            } else {
                $results[] = "❌ Redis temizlenemedi.";
                $fail_count++;
            }
            $redis->close();
        } else {
            $results[] = "⚠️ Redis sunucusuna bağlanılamadı.";
        }
    } catch (Exception $e) {
        $results[] = "❌ Redis hatası: " . $e->getMessage();
        $fail_count++;
    }
} else {
    $results[] = "⚠️ Redis aktif değil.";
}

// ==================== WORDPRESS CACHE'LERİ ====================

if (defined('ABSPATH')) {
    
    // WordPress Object Cache
    if (function_exists('wp_cache_flush')) {
        wp_cache_flush();
        $results[] = "✅ WordPress Object Cache temizlendi.";
        $success_count++;
    }
    
    // Transient'leri temizle
    global $wpdb;
    if ($wpdb) {
        // Normal transient'ler
        $count = $wpdb->query("
            DELETE FROM {$wpdb->options} 
            WHERE option_name LIKE '_transient_%' 
            OR option_name LIKE '_site_transient_%'
        ");
        $results[] = "✅ $count transient temizlendi.";
        $success_count++;
        
        // Timeout transient'leri
        $wpdb->query("
            DELETE FROM {$wpdb->options} 
            WHERE option_name LIKE '_transient_timeout_%' 
            OR option_name LIKE '_site_transient_timeout_%'
        ");
        
        // Cron lock'ları temizle
        $wpdb->query("
            DELETE FROM {$wpdb->options} 
            WHERE option_name = '_transient_doing_cron'
        ");
        $results[] = "✅ Cron lock temizlendi.";
        $success_count++;
        
        // Expired transient'leri temizle
        $time = time();
        $expired = $wpdb->query("
            DELETE FROM {$wpdb->options} 
            WHERE option_name LIKE '_transient_timeout_%' 
            AND option_value < $time
        ");
        $results[] = "✅ $expired expired transient temizlendi.";
        
        // Feed cache temizle
        $wpdb->query("
            DELETE FROM {$wpdb->options} 
            WHERE option_name LIKE '_transient_feed_%' 
            OR option_name LIKE '_transient_dash_%'
        ");
    }
    
    // Rewrite rules'ları yenile
    flush_rewrite_rules();
    $results[] = "✅ Rewrite rules yenilendi.";
    $success_count++;
    
    // WP Super Cache
    if (function_exists('wp_cache_clear_cache')) {
        wp_cache_clear_cache();
        $results[] = "✅ WP Super Cache temizlendi.";
        $success_count++;
    }
    
    // W3 Total Cache
    if (function_exists('w3tc_flush_all')) {
        w3tc_flush_all();
        $results[] = "✅ W3 Total Cache temizlendi.";
        $success_count++;
    }
    
    // WP Rocket
    if (function_exists('rocket_clean_domain')) {
        rocket_clean_domain();
        $results[] = "✅ WP Rocket cache temizlendi.";
        $success_count++;
    }
    
    // WP Fastest Cache
    if (class_exists('WpFastestCache')) {
        $wpfc = new WpFastestCache();
        if (method_exists($wpfc, 'deleteCache')) {
            $wpfc->deleteCache();
            $results[] = "✅ WP Fastest Cache temizlendi.";
            $success_count++;
        }
    }
    
    // Autoptimize
    if (class_exists('autoptimizeCache')) {
        autoptimizeCache::clearall();
        $results[] = "✅ Autoptimize cache temizlendi.";
        $success_count++;
    }
    
    // LiteSpeed Cache
    if (defined('LSCWP_V')) {
        do_action('litespeed_purge_all');
        $results[] = "✅ LiteSpeed Cache (WordPress) temizlendi.";
        $success_count++;
    }
    
    // Cache Enabler
    if (class_exists('Cache_Enabler')) {
        Cache_Enabler::clear_total_cache();
        $results[] = "✅ Cache Enabler temizlendi.";
        $success_count++;
    }
    
    // Comet Cache
    if (class_exists('comet_cache')) {
        comet_cache::clear();
        $results[] = "✅ Comet Cache temizlendi.";
        $success_count++;
    }
    
    // Hyper Cache
    if (function_exists('hyper_cache_flush')) {
        hyper_cache_flush();
        $results[] = "✅ Hyper Cache temizlendi.";
        $success_count++;
    }
}

// ==================== LITESPEED SUNUCU CACHE ====================

// LiteSpeed Cache Header
if (!headers_sent()) {
    header('X-LiteSpeed-Purge: *');
    $results[] = "✅ LiteSpeed purge header gönderildi.";
    $success_count++;
}

// LiteSpeed dosya cache
$litespeed_dirs = [
    '/tmp/lshttpd/swap/',
    '/tmp/lshttpd/cache/',
    '/var/cache/litespeed/'
];

foreach ($litespeed_dirs as $dir) {
    if (is_dir($dir)) {
        $deleted = 0;
        $files = glob($dir . '*');
        foreach ($files as $file) {
            if (is_file($file) && @unlink($file)) {
                $deleted++;
            }
        }
        if ($deleted > 0) {
            $results[] = "✅ LiteSpeed cache dosyaları temizlendi: $dir ($deleted dosya)";
            $success_count++;
        }
    }
}

// ==================== CLOUDFLARE CACHE ====================

// Cloudflare API ile cache temizleme (API bilgileri varsa)
$cf_email = ''; // Cloudflare email
$cf_api_key = ''; // Cloudflare API key
$cf_zone_id = ''; // Zone ID

if ($cf_email && $cf_api_key && $cf_zone_id) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "https://api.cloudflare.com/client/v4/zones/$cf_zone_id/purge_cache");
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        "X-Auth-Email: $cf_email",
        "X-Auth-Key: $cf_api_key",
        "Content-Type: application/json"
    ]);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(["purge_everything" => true]));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    
    $response = curl_exec($ch);
    $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    
    if ($httpcode == 200) {
        $results[] = "✅ Cloudflare cache temizlendi.";
        $success_count++;
    }
}

// ==================== DOSYA BAZLI CACHE TEMİZLEME ====================

// WordPress upload cache dizini
$upload_dir = wp_upload_dir();
$cache_dirs = [
    $upload_dir['basedir'] . '/cache/',
    ABSPATH . 'wp-content/cache/',
    ABSPATH . 'wp-content/w3tc-cache/',
    ABSPATH . 'wp-content/wp-rocket-cache/',
    ABSPATH . 'wp-content/endurance-page-cache/',
    ABSPATH . 'wp-content/et-cache/',
];

foreach ($cache_dirs as $cache_dir) {
    if (is_dir($cache_dir)) {
        $deleted = 0;
        $iterator = new RecursiveIteratorIterator(
            new RecursiveDirectoryIterator($cache_dir, RecursiveDirectoryIterator::SKIP_DOTS),
            RecursiveIteratorIterator::CHILD_FIRST
        );
        
        foreach ($iterator as $file) {
            if ($file->isFile()) {
                @unlink($file->getRealPath());
                $deleted++;
            }
        }
        
        if ($deleted > 0) {
            $results[] = "✅ Cache dizini temizlendi: " . basename($cache_dir) . " ($deleted dosya)";
            $success_count++;
        }
    }
}

// ==================== DATABASE OPTİMİZASYON ====================

if (defined('ABSPATH') && $wpdb) {
    // Optimize tables
    $tables = $wpdb->get_results("SHOW TABLES", ARRAY_N);
    $optimized = 0;
    
    foreach ($tables as $table) {
        $wpdb->query("OPTIMIZE TABLE " . $table[0]);
        $optimized++;
    }
    
    $results[] = "✅ $optimized veritabanı tablosu optimize edildi.";
    $success_count++;
    
    // Post revisions temizle
    $revisions = $wpdb->query("
        DELETE FROM {$wpdb->posts} 
        WHERE post_type = 'revision'
    ");
    if ($revisions > 0) {
        $results[] = "✅ $revisions post revision temizlendi.";
        $success_count++;
    }
    
    // Auto-draft temizle
    $drafts = $wpdb->query("
        DELETE FROM {$wpdb->posts} 
        WHERE post_status = 'auto-draft'
    ");
    if ($drafts > 0) {
        $results[] = "✅ $drafts auto-draft temizlendi.";
    }
    
    // Spam yorumları temizle
    $spam = $wpdb->query("
        DELETE FROM {$wpdb->comments} 
        WHERE comment_approved = 'spam'
    ");
    if ($spam > 0) {
        $results[] = "✅ $spam spam yorum temizlendi.";
    }
}

// ==================== SONUÇLARI GÖSTER ====================

$end_time = microtime(true);
$execution_time = round($end_time - $start_time, 2);

echo "<!DOCTYPE html>
<html>
<head>
    <title>Cache Temizleme Raporu</title>
    <meta charset='UTF-8'>
    <style>
        body { font-family: Arial, sans-serif; margin: 20px; background: #f5f5f5; }
        .container { max-width: 800px; margin: 0 auto; background: white; padding: 20px; border-radius: 10px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
        h1 { color: #333; border-bottom: 3px solid #4CAF50; padding-bottom: 10px; }
        .result { padding: 8px; margin: 5px 0; border-left: 4px solid #ddd; background: #fafafa; }
        .stats { background: #4CAF50; color: white; padding: 15px; border-radius: 5px; margin: 20px 0; }
        .info { background: #2196F3; color: white; padding: 15px; border-radius: 5px; margin: 20px 0; }
        pre { background: #f4f4f4; padding: 10px; border-radius: 5px; overflow-x: auto; }
    </style>
</head>
<body>
    <div class='container'>
        <h1>🚀 Cache Temizleme Raporu</h1>";

foreach ($results as $result) {
    echo "<div class='result'>$result</div>";
}

echo "<div class='stats'>
        <h3>📊 İstatistikler</h3>
        <p>✅ Başarılı: $success_count</p>
        <p>❌ Başarısız: $fail_count</p>
        <p>⏱️ İşlem Süresi: {$execution_time} saniye</p>
        <p>📅 Tarih: " . date('Y-m-d H:i:s') . "</p>
      </div>";

echo "<div class='info'>
        <h3>💻 Sistem Bilgileri</h3>
        <p>PHP Version: " . phpversion() . "</p>
        <p>Server: " . $_SERVER['SERVER_SOFTWARE'] . "</p>";

if (function_exists('opcache_get_status')) {
    $opcache_status = opcache_get_status();
    if ($opcache_status) {
        echo "<p>OPcache Memory: " . round($opcache_status['memory_usage']['used_memory'] / 1024 / 1024, 2) . " MB</p>";
        echo "<p>OPcache Hit Rate: " . round($opcache_status['opcache_statistics']['hits'] * 100 / ($opcache_status['opcache_statistics']['hits'] + $opcache_status['opcache_statistics']['misses']), 2) . "%</p>";
    }
}

if (defined('ABSPATH')) {
    echo "<p>WordPress Version: " . get_bloginfo('version') . "</p>";
    echo "<p>Active Theme: " . wp_get_theme()->get('Name') . "</p>";
    echo "<p>Active Plugins: " . count(get_option('active_plugins')) . "</p>";
}

echo "</div>
    </div>
</body>
</html>";
?>