<?php
/**
 * Plugin Name: AI RSS Rewriter – Feed to Post, Autoblogging & SEO
 * Plugin URI: https://wordpress.org/plugins/ai-rss-rewriter/
 * Description: Advanced RSS feed parser with AI content rewriting, image generation, and automation features. Automatically imports RSS feeds, rewrites content using AI, generates images, and publishes posts with SEO optimization.
 * Version: 1.0
 * Author: vanyaa
 * Author URI: https://profiles.wordpress.org/vanyaa/
 * License: GPL v2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain: ai-rss-rewriter
 * Domain Path: /languages
 * Requires at least: 5.0
 * Tested up to: 6.4
 * Requires PHP: 7.4
 * 
 * @package AI_RSS_Rewriter
 * @version 1.0
 * @author vanyaa
 * @license GPL-2.0+
 * @link https://wordpress.org/plugins/ai-rss-rewriter/
 */

if (!defined('ABSPATH')) exit;

define('AIRSREFE_VERSION', '1.0');
define('AIRSREFE_PLUGIN_DIR', plugin_dir_path(__FILE__));
define('AIRSREFE_PLUGIN_URL', plugin_dir_url(__FILE__));

/**
 * Plugin activation hook
 */
register_activation_hook(__FILE__, 'airsrefe_plugin_activation');

// Register prompts initialization hook
register_activation_hook(__FILE__, 'airsrefe_initialize_default_prompts');

/**
 * Plugin deactivation hook
 */
register_deactivation_hook(__FILE__, 'airsrefe_plugin_deactivation');

/**
 * Handle plugin activation
 */
function airsrefe_plugin_activation() {
    // Set default options
    if (!get_option('airsrefe_processing_mode')) {
        update_option('airsrefe_processing_mode', 'simple');
    }
    if (!get_option('airsrefe_image_source')) {
        update_option('airsrefe_image_source', 'none');
    }
    if (!get_option('airsrefe_plugin_language')) {
        update_option('airsrefe_plugin_language', 'en');
    }
    
    // Create necessary database tables if needed
    airsrefe_create_tables();
    
    // Flush rewrite rules
    flush_rewrite_rules();
    
    // Initialize caching
    airsrefe_initialize_caching();
    
    // Migrate old options to new names
    airsrefe_migrate_old_options();
    
    // Create upload directory and assets
    $upload_dir = wp_upload_dir();
    $plugin_dir = $upload_dir['basedir'] . '/ai-rss-rewriter';
    
    if (!file_exists($plugin_dir)) {
        wp_mkdir_p($plugin_dir);
        file_put_contents($plugin_dir . '/.htaccess', "Options -Indexes\nDeny from all");
    }
    
    airsrefe_create_assets();
    
    // Initialize model defaults
    airsrefe_initialize_model_defaults();
    
    // Log activation
    airsrefe_append_log('Plugin activated successfully');
    
    // Log activation details
    airsrefe_log_activation();
    
    // Schedule cron job
    if (function_exists('airsrefe_schedule_cron')) {
        airsrefe_schedule_cron();
    }
}

/**
 * Migrate old option names to new prefixed names
 */
function airsrefe_migrate_old_options() {
    // Define option mappings (old_name => new_name)
    $option_mappings = [
        'arr_processing_mode' => 'airsrefe_processing_mode',
        'arr_image_source' => 'airsrefe_image_source',
        'arr_plugin_language' => 'airsrefe_plugin_language',
        'arr_openai_key' => 'airsrefe_openai_key',
        'arr_daily_parsing_limit' => 'airsrefe_daily_parsing_limit',
        'arr_generate_tags' => 'airsrefe_generate_tags',
        'arr_cache_time' => 'airsrefe_cache_time',
        'arr_use_original_date' => 'airsrefe_use_original_date',
        'arr_model_content' => 'airsrefe_model_content',
        'arr_model_title' => 'airsrefe_model_title',
        'arr_model_tags' => 'airsrefe_model_tags',
        'arr_model_seo' => 'airsrefe_model_seo',
        'arr_model_fallback' => 'airsrefe_model_fallback',
        'arr_smart_model_selection' => 'airsrefe_smart_model_selection',
        'arr_content_length_threshold' => 'airsrefe_content_length_threshold',
        'arr_enable_json_responses' => 'airsrefe_enable_json_responses',
        'arr_daily_budget_limit' => 'airsrefe_daily_budget_limit',
        'arr_enable_budget_alerts' => 'airsrefe_enable_budget_alerts',
        'arr_emergency_stop_enabled' => 'airsrefe_emergency_stop_enabled',
        'arr_optimize_images' => 'airsrefe_optimize_images',
        'arr_image_format' => 'airsrefe_image_format',
        'arr_image_compression_quality' => 'airsrefe_image_compression_quality',
        'arr_max_image_width' => 'airsrefe_max_image_width',
        'arr_max_image_height' => 'airsrefe_max_image_height',
        'arr_image_size' => 'airsrefe_image_size',
        'arr_image_quality' => 'airsrefe_image_quality',
        'arr_extract_full_content' => 'airsrefe_extract_full_content',
        'arr_content_extraction_method' => 'airsrefe_content_extraction_method',
        'arr_min_content_length' => 'airsrefe_min_content_length',
        'arr_respect_robots_txt' => 'airsrefe_respect_robots_txt',
        'arr_cron_interval' => 'airsrefe_cron_interval',
        'arr_feeds' => 'airsrefe_feeds',
        'arr_daily_costs' => 'airsrefe_daily_costs',
        'arr_prompts' => 'airsrefe_prompts',
        'arr_logs' => 'airsrefe_logs',
        'arr_version' => 'airsrefe_version',
        'arr_cache_initialized' => 'airsrefe_cache_initialized',
        'arr_cache_version' => 'airsrefe_cache_version',
        'arr_block_parsing' => 'airsrefe_block_parsing',
        'arr_today_parsed_count' => 'airsrefe_today_parsed_count'
    ];

    // Migrate each option if old exists and new doesn't
    foreach ($option_mappings as $old_name => $new_name) {
        $old_value = get_option($old_name);
        if ($old_value !== false && get_option($new_name) === false) {
            update_option($new_name, $old_value);
            // Keep old option for backward compatibility during transition
            // delete_option($old_name); // Uncomment after full migration
        }
    }

    // Migrate transients with arr_ prefix
    $transient_keys = [
        '_transient_arr_',
        '_transient_timeout_arr_'
    ];
    
    foreach ($transient_keys as $prefix) {
        $old_transients = wp_cache_get('airsrefe_old_transients_' . $prefix, 'airsrefe_migration');
        if ($old_transients === false) {
            // Use WordPress functions instead of direct SQL
            $all_options = wp_load_alloptions();
            $old_transients = [];
            
            foreach ($all_options as $key => $value) {
                if (strpos($key, $prefix) === 0) {
                    $old_transients[] = $key;
                }
            }
            
            wp_cache_set('airsrefe_old_transients_' . $prefix, $old_transients, 'airsrefe_migration', 3600);
        }
        
        foreach ($old_transients as $old_name) {
            $new_name = str_replace('_arr_', '_airsrefe_', $old_name);
            $value = get_option($old_name);
            if ($value !== false) {
                update_option($new_name, $value);
            }
        }
    }

    airsrefe_append_log('Options migration completed from arr_ to airsrefe_ prefix');
}

/**
 * Handle plugin deactivation
 */
function airsrefe_plugin_deactivation() {
    // Clear scheduled events
    wp_clear_scheduled_hook('airsrefe_process_queue_batch');
    wp_clear_scheduled_hook('airsrefe_queue_maintenance');
    
    // Clear all plugin caches
    airsrefe_clear_all_caches();
    
    // Flush rewrite rules
    flush_rewrite_rules();
    
    // Log deactivation
    airsrefe_append_log('Plugin deactivated');
}

/**
 * Create necessary database tables
 */
function airsrefe_create_tables() {
    global $wpdb;
    
    $table_name = $wpdb->prefix . 'airsrefe_feeds';
    
    $charset_collate = $wpdb->get_charset_collate();
    
    $sql = "CREATE TABLE IF NOT EXISTS $table_name (
        id mediumint(9) NOT NULL AUTO_INCREMENT,
        feed_url varchar(255) NOT NULL,
        feed_name varchar(255) NOT NULL,
        processing_mode varchar(20) DEFAULT 'simple',
        ai_prompt text,
        image_source varchar(20) DEFAULT 'none',
        post_category int(11) DEFAULT 0,
        post_status varchar(20) DEFAULT 'publish',
        use_original_date tinyint(1) DEFAULT 1,
        created_at datetime DEFAULT CURRENT_TIMESTAMP,
        updated_at datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
        PRIMARY KEY (id),
        KEY feed_url (feed_url)
    ) $charset_collate;";
    
    require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
    dbDelta($sql);
}

/**
 * Initialize caching system
 */
function airsrefe_initialize_caching() {
    // Set up cache groups
    if (function_exists('wp_cache_add_global_groups')) {
        wp_cache_add_global_groups([
            'airsrefe_plugin',
            'airsrefe_daily_limits',
            'airsrefe_duplicates',
            'airsrefe_categories',
            'airsrefe'
        ]);
    }
    
    // Initialize cache settings
    if (!get_option('airsrefe_cache_initialized')) {
        update_option('airsrefe_cache_initialized', true);
        update_option('airsrefe_cache_version', AIRSREFE_VERSION);
    }
}

/**
 * Clear all plugin caches
 */
function airsrefe_clear_all_caches() {
    // Clear object cache groups
    if (function_exists('wp_cache_flush_group')) {
        wp_cache_flush_group('airsrefe_plugin');
        wp_cache_flush_group('airsrefe_daily_limits');
        wp_cache_flush_group('airsrefe_duplicates');
        wp_cache_flush_group('airsrefe_categories');
        wp_cache_flush_group('airsrefe');
    }
    
    // Clear transients using WordPress API
    airsrefe_clear_plugin_transients();
    
    // Clear any remaining cache
    wp_cache_flush();
}

/**
 * Clear plugin transients safely
 */
function airsrefe_clear_plugin_transients() {
    // Clear known transient patterns using WordPress functions
    $transient_patterns = [
        'airsrefe_feed_',
        'airsrefe_ai_',
        'airsrefe_cache_',
        'airsrefe_daily_',
        'airsrefe_duplicate_',
        'airsrefe_stats_',
        'airsrefe_dashboard_',
        'airsrefe_processed_',
        'airsrefe_attachment_',
        'airsrefe_today_parsed_count'
    ];
    
    foreach ($transient_patterns as $pattern) {
        // Try to delete common transient variations
        for ($i = 0; $i < 100; $i++) { // Reasonable limit
            $key = $pattern . $i;
            delete_transient($key);
        }
        
        // Also try without numbers
        delete_transient($pattern . 'list');
        delete_transient($pattern . 'cache');
        delete_transient($pattern . 'data');
    }
    
    // Clear cache groups
    $cache_groups = [
        'airsrefe_rss_feeds',
        'airsrefe_ai_results', 
        'airsrefe_cache',
        'airsrefe_daily_limits',
        'airsrefe_duplicates',
        'airsrefe_stats'
    ];
    
    foreach ($cache_groups as $group) {
        wp_cache_flush_group($group);
    }
    
    // Clear WordPress object cache
    wp_cache_flush();
}

// WordPress 4.6+ automatically loads translations, no need for manual load_plugin_textdomain

// Load custom language support
add_action('init', function() {
    $plugin_language = get_option('airssrewriter_plugin_language', 'en');
    $locale = ($plugin_language === 'uk') ? 'uk' : 'en_US';

    // WordPress 4.6+ automatically loads translations, but we need custom language support
    if ($locale !== 'en_US') {
        $mo_file = dirname(__FILE__) . '/languages/' . $locale . '.mo';
        if (file_exists($mo_file)) {
            load_textdomain('ai-rss-rewriter', $mo_file);
        }
    }
}, 1);

// Filter to change locale on plugin pages
add_filter('locale', function($locale) {
    // Only process in admin context and when page parameter exists
    if (is_admin() && isset($_GET['page'])) {
        // Check if user functions are available before calling current_user_can
        if (function_exists('current_user_can') && function_exists('wp_get_current_user')) {
            // Additional check to ensure WordPress user system is loaded
            if (did_action('init') > 0 && current_user_can('manage_options')) {
                // Verify nonce for additional security
                $nonce = isset($_GET['_wpnonce']) ? sanitize_text_field(wp_unslash($_GET['_wpnonce'])) : '';
                if (wp_verify_nonce($nonce, 'ai-rss-rewriter-locale')) {
                    $page = sanitize_text_field(wp_unslash($_GET['page']));
                    if (strpos($page, 'ai-rss-rewriter') !== false) {
                        $plugin_language = get_option('airssrewriter_plugin_language', 'en');
                        return ($plugin_language === 'uk') ? 'uk' : 'en_US';
                    }
                }
            }
        }
    }
    return $locale;
});

// Filter to force load plugin translations
add_filter('gettext', function($translation, $text, $domain) {
    if ($domain === 'ai-rss-rewriter') {
        $plugin_language = get_option('airssrewriter_plugin_language', 'en');
        
        if ($plugin_language === 'uk') {
            static $uk_translations = null;
            
            if ($uk_translations === null) {
                $uk_translations = [];
                $uk_file = dirname(__FILE__) . '/languages/uk.po';
                
                if (file_exists($uk_file)) {
                    $po_content = file_get_contents($uk_file);
                    preg_match_all('/msgid "(.*?)"\nmsgstr "(.*?)"/s', $po_content, $matches);
                    
                    if (!empty($matches[1]) && !empty($matches[2])) {
                        for ($i = 0; $i < count($matches[1]); $i++) {
                            if (!empty($matches[2][$i])) {
                                $uk_translations[$matches[1][$i]] = $matches[2][$i];
                            }
                        }
                    }
                }
            }
            
            if (isset($uk_translations[$text])) {
                return $uk_translations[$text];
            }
        }
    }
    
    return $translation;
}, 10, 3);

// Filter to force load plugin translations (alternative method)
add_filter('ngettext', function($translation, $single, $plural, $number, $domain) {
    if ($domain === 'ai-rss-rewriter') {
        $plugin_language = get_option('airssrewriter_plugin_language', 'en');
        
        if ($plugin_language === 'uk') {
            static $uk_translations = null;
            
            if ($uk_translations === null) {
                $uk_translations = [];
                $uk_file = dirname(__FILE__) . '/languages/uk.po';
                
                if (file_exists($uk_file)) {
                    $po_content = file_get_contents($uk_file);
                    preg_match_all('/msgid "(.*?)"\nmsgstr "(.*?)"/s', $po_content, $matches);
                    
                    if (!empty($matches[1]) && !empty($matches[2])) {
                        for ($i = 0; $i < count($matches[1]); $i++) {
                            if (!empty($matches[2][$i])) {
                                $uk_translations[$matches[1][$i]] = $matches[2][$i];
                            }
                        }
                    }
                }
            }
            
            if ($number === 1 && isset($uk_translations[$single])) {
                return $uk_translations[$single];
            }
            
            if ($number !== 1 && isset($uk_translations[$plural])) {
                return $uk_translations[$plural];
            }
        }
    }
    
    return $translation;
}, 10, 5);

if (!function_exists('airsrefe_append_log')) {
/**
 * Append message to plugin log
 *
 * @param string $message The message to log
 * @return void
 */
function airsrefe_append_log($message) {
    $log = get_option('airsrefe_log', '');
    $timestamp = current_time('mysql');
    $new_entry = "[$timestamp] $message\n";
    $log = $new_entry . $log;
    if (strlen($log) > 51200) {
        $log = substr($log, 0, 51200) . "\n[LOG TRUNCATED]\n";
    }
    update_option('airsrefe_log', $log);
}
}

// Calculate processing cost for article parsing
if (!function_exists('airsrefe_calculate_processing_cost')) {
/**
 * Calculate AI processing cost based on log data
 *
 * @param array $log_data Array containing processing log data
 * @return float Total processing cost
 */
function airsrefe_calculate_processing_cost($log_data = []) {
    $total_cost = 0;
    
    $content_length = strlen($log_data['original'] ?? '') + strlen($log_data['unique'] ?? '');
    $content_tokens = $content_length / 4;
    $content_cost = ($content_tokens / 1000) * 0.01;
    
    $title_cost = 0.001;
    $tags_cost = 0.002;
    $image_cost = isset($log_data['image_generated']) && $log_data['image_generated'] ? 0.04 : 0;
    
    $ai_operations_cost = 0;
    if (isset($log_data['ai_operations'])) {
        foreach ($log_data['ai_operations'] as $operation) {
            switch ($operation) {
                case 'content_rewrite':
                    $ai_operations_cost += 0.005;
                    break;
                case 'title_optimization':
                    $ai_operations_cost += 0.002;
                    break;
                case 'seo_enhancement':
                    $ai_operations_cost += 0.003;
                    break;
                case 'language_translation':
                    $ai_operations_cost += 0.008;
                    break;
            }
        }
    }
    
    $total_cost = $content_cost + $title_cost + $tags_cost + $image_cost + $ai_operations_cost;
    
    if (isset($log_data['processing_cost'])) {
        $total_cost = $log_data['processing_cost'];
    }
    
    return round($total_cost, 3);
}
}

// Load all plugin files
require_once 'includes/assets-manager.php';
require_once 'includes/prompts-manager.php';
require_once 'includes/ai-handler.php';
require_once 'includes/image-handler.php';
require_once 'includes/rss-parser.php';
require_once 'includes/admin-interface.php';
require_once 'includes/settings-handlers.php';
require_once 'includes/content-processor.php';
require_once 'includes/ajax-handlers.php';

// Initialize assets manager
new AIRSREFE_Assets_Manager();

// Function moved to main activation hook

$defaults = [
'airsrefe_ce_extract_full_content' => 1,
'airsrefe_ce_content_extraction_method' => 'dom',
'feedhive_extract_full_content' => 1,
'feedhive_content_extraction_method' => 'dom',
'airsrefe_use_original_date' => 1,
'airsrefe_daily_post_limit' => 50,
'airsrefe_optimize_images' => 1,
'airsrefe_image_format' => 'webp',
'airsrefe_image_compression_quality' => 85,
'airsrefe_max_image_width' => 1792,
'airsrefe_max_image_height' => 1024,
'airsrefe_image_size' => '1792x1024',
'airsrefe_image_quality' => 'standard',
'airsrefe_model_content' => 'gpt-4o',
'airsrefe_model_title' => 'gpt-4o-mini',
'airsrefe_model_tags' => 'gpt-4o-mini',
'airsrefe_exponential_backoff' => 1,
'airsrefe_max_retry_attempts' => 3,
'airsrefe_api_timeout' => 60,
];

foreach ($defaults as $option => $value) {
    // Використовуємо update_option замість add_option для кращої продуктивності
    // update_option автоматично створює опцію, якщо вона не існує
    update_option($option, $value);
}


airsrefe_cleanup_transients();

/**
 * Create plugin assets in uploads directory
 * Validates file types and ensures secure file operations
 */
function airsrefe_create_assets() {
    // Use uploads directory instead of plugin directory
    $upload_dir = wp_upload_dir();
    $assets_dir = $upload_dir['basedir'] . '/ai-rss-rewriter/assets';
    
    // Validate upload directory
    if (!$upload_dir || isset($upload_dir['error']) && $upload_dir['error']) {
        airsrefe_append_log("❌ Error getting upload directory: " . ($upload_dir['error'] ?? 'Unknown error'));
        return false;
    }
    
    if (!file_exists($assets_dir)) {
        $created = wp_mkdir_p($assets_dir);
        if (!$created) {
            airsrefe_append_log("❌ Failed to create assets directory: " . $assets_dir);
            return false;
        }
    }

// Create subdirectories
$subdirs = [
'css/admin',
'js/admin',
'css/frontend',
'js/frontend'
];

foreach ($subdirs as $subdir) {
$subdir_path = $assets_dir . '/' . $subdir;
if (!file_exists($subdir_path)) {
wp_mkdir_p($subdir_path);
}
}

// Copy all required asset files to uploads directory
$source_assets = AIRSREFE_PLUGIN_DIR . 'assets/';
$assets_to_copy = [
'admin-modern.css',
'admin-modern.js',
'admin-interface.css',
'settings-admin.js'
];

// Copy CSS files
$css_files = [
'css/admin/settings.css',
'css/admin/prompts.css'
];

// Copy JS files
$js_files = [
'js/admin/modal.js',
'js/admin/feed-management.js',
'js/admin/logs.js',
'js/admin/prompts.js',
];

// Copy original assets with validation
foreach ($assets_to_copy as $asset) {
    $source = $source_assets . $asset;
    $destination = $assets_dir . '/' . $asset;
    
    // Validate file extension
    $allowed_extensions = ['css', 'js'];
    $file_extension = pathinfo($asset, PATHINFO_EXTENSION);
    
    if (!in_array($file_extension, $allowed_extensions)) {
        airsrefe_append_log("❌ Invalid file extension for asset: " . $asset);
        continue;
    }
    
    // Validate source file exists and is readable
    if (!file_exists($source) || !is_readable($source)) {
        airsrefe_append_log("❌ Source asset not found or not readable: " . $source);
        continue;
    }
    
    // Validate file size (max 1MB for assets)
    if (filesize($source) > 1024 * 1024) {
        airsrefe_append_log("❌ Asset file too large: " . $asset);
        continue;
    }
    
    // Create destination directory if it doesn't exist
    $destination_dir = dirname($destination);
    if (!file_exists($destination_dir)) {
        wp_mkdir_p($destination_dir);
    }
    
    if (!file_exists($destination) || filemtime($source) > filemtime($destination)) {
        if (copy($source, $destination)) {
            airsrefe_append_log("✅ Asset copied successfully: " . basename($source));
        } else {
            $error_msg = sprintf('Failed to copy asset file: %s to %s', $source, $destination);
            airsrefe_append_log("❌ " . $error_msg);
        }
}
}

// Copy new CSS files
foreach ($css_files as $css_file) {
$source = AIRSREFE_PLUGIN_DIR . 'assets/' . $css_file;
$destination = $assets_dir . '/' . $css_file;

// Create destination directory if it doesn't exist
$destination_dir = dirname($destination);
if (!file_exists($destination_dir)) {
wp_mkdir_p($destination_dir);
}

if (file_exists($source) && (!file_exists($destination) || filemtime($source) > filemtime($destination))) {
if (copy($source, $destination)) {
// File copied successfully
airsrefe_append_log("✅ CSS file copied successfully: " . basename($source));
} else {
// Log error if copy fails
$error_msg = sprintf('Failed to copy CSS file: %s to %s', $source, $destination);
airsrefe_append_log("❌ " . $error_msg);
}
} elseif (!file_exists($source)) {
// If source file doesn't exist, create it directly in uploads directory
$content = '';
switch ($css_file) {
case 'css/admin/settings.css':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/css/admin/settings.css');
break;
case 'css/admin/prompts.css':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/css/admin/prompts.css');
break;
}
if ($content && file_put_contents($destination, $content)) {
// File created successfully
airsrefe_append_log("✅ CSS file created successfully: " . basename($destination));
} else {
$error_msg = sprintf('Failed to create CSS file: %s', $destination);
airsrefe_append_log("❌ " . $error_msg);
}
}
}

// Copy new JS files
foreach ($js_files as $js_file) {
$source = AIRSREFE_PLUGIN_DIR . 'assets/' . $js_file;
$destination = $assets_dir . '/' . $js_file;

// Create destination directory if it doesn't exist
$destination_dir = dirname($destination);
if (!file_exists($destination_dir)) {
wp_mkdir_p($destination_dir);
}

if (file_exists($source) && (!file_exists($destination) || filemtime($source) > filemtime($destination))) {
if (copy($source, $destination)) {
// File copied successfully
airsrefe_append_log("✅ JS file copied successfully: " . basename($source));
} else {
// Log error if copy fails
$error_msg = sprintf('Failed to copy JS file: %s to %s', $source, $destination);
airsrefe_append_log("❌ " . $error_msg);
}
} elseif (!file_exists($source)) {
// If source file doesn't exist, create it directly in uploads directory
$content = '';
switch ($js_file) {
case 'js/admin/modal.js':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/js/admin/modal.js');
break;
case 'js/admin/feed-management.js':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/js/admin/feed-management.js');
break;
case 'js/admin/logs.js':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/js/admin/logs.js');
break;
case 'js/admin/prompts.js':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/js/admin/prompts.js');
break;
}
if ($content && file_put_contents($destination, $content)) {
// File created successfully
airsrefe_append_log("✅ JS file created successfully: " . basename($destination));
} else {
$error_msg = sprintf('Failed to create JS file: %s', $destination);
airsrefe_append_log("❌ " . $error_msg);
}
}
}

// Verify all assets were created successfully
airsrefe_verify_assets_created($assets_dir);
}

function airsrefe_verify_assets_created($assets_dir) {
$required_files = [
'css/admin/settings.css',
'css/admin/prompts.css',
'js/admin/modal.js',
'js/admin/feed-management.js',
'js/admin/logs.js',
'js/admin/prompts.js',
];

$missing_files = [];
foreach ($required_files as $file) {
if (!file_exists($assets_dir . '/' . $file)) {
$missing_files[] = $file;
}
}

if (!empty($missing_files)) {
// Try to create missing files
airsrefe_create_missing_assets($assets_dir, $missing_files);
}
}

function airsrefe_create_missing_assets($assets_dir, $missing_files) {
foreach ($missing_files as $file) {
$destination = $assets_dir . '/' . $file;
$content = '';

// Get content based on file type
switch ($file) {
case 'css/admin/settings.css':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/css/admin/settings.css');
break;
case 'css/admin/prompts.css':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/css/admin/prompts.css');
break;
case 'js/admin/modal.js':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/js/admin/modal.js');
break;
case 'js/admin/feed-management.js':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/js/admin/feed-management.js');
break;
case 'js/admin/logs.js':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/js/admin/logs.js');
break;
case 'js/admin/prompts.js':
$content = file_get_contents(AIRSREFE_PLUGIN_DIR . 'assets/js/admin/prompts.js');
break;
}

if ($content && file_put_contents($destination, $content)) {
$success_msg = sprintf('Created missing asset file: %s', $file);
airsrefe_append_log("✅ " . $success_msg);
} else {
$error_msg = sprintf('Failed to create missing asset file: %s', $file);
airsrefe_append_log("❌ " . $error_msg);
}
}
}

// Add function to manually recreate assets if needed
function airsrefe_recreate_assets() {
$upload_dir = wp_upload_dir();
$assets_dir = $upload_dir['basedir'] . '/ai-rss-rewriter/assets';
airsrefe_create_assets();
}

// Add function to check if assets exist and recreate if needed
function airsrefe_check_assets() {
$upload_dir = wp_upload_dir();
$assets_dir = $upload_dir['basedir'] . '/ai-rss-rewriter/assets';
$required_files = [
'css/admin/settings.css',
'css/admin/prompts.css',
'js/admin/modal.js',
'js/admin/feed-management.js',
'js/admin/logs.js',
'js/admin/prompts.js',
];

$missing_files = [];
foreach ($required_files as $file) {
if (!file_exists($assets_dir . '/' . $file)) {
$missing_files[] = $file;
}
}

if (!empty($missing_files)) {
airsrefe_create_missing_assets($assets_dir, $missing_files);
return false;
}
return true;
}

// Add function to get assets URL
function airsrefe_get_assets_url() {
    return AIRSREFE_PLUGIN_URL . 'assets/';
}

// Add function to get assets directory path
function airsrefe_get_assets_dir() {
    return AIRSREFE_PLUGIN_DIR . 'assets/';
}

// Add function to ensure assets are created on admin init
add_action('admin_init', 'airsrefe_ensure_assets_exist');
function airsrefe_ensure_assets_exist() {
    // Check if user has admin capabilities
    if (!current_user_can('manage_options')) {
        return;
    }
    
    // Use WordPress function to get current screen
    $screen = get_current_screen();
    if ($screen && isset($screen->id) && strpos($screen->id, 'ai-rss-rewriter') !== false) {
        airsrefe_check_assets();
    }
}

function airsrefe_get_modern_css() {
    // Return the content of the external CSS file
    $css_file = plugin_dir_path(__FILE__) . 'assets/admin-modern.css';
    if (file_exists($css_file)) {
        return file_get_contents($css_file);
    }
    
    // Fallback to basic CSS if file doesn't exist
    return ':root{--primary-color:#20a64f;--primary-dark:#1a8a42;--primary-light:#2db85d;--secondary-color:#f8fafc;--accent-color:#3b82f6;--text-primary:#1f2937;--text-secondary:#6b7280;--text-muted:#9ca3af;--border-color:#e5e7eb;--background:#ffffff;--background-secondary:#f9fafb;--shadow-sm:0 1px 2px 0 rgb(0 0 0 / 0.05);--shadow-md:0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);--shadow-lg:0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);--success-color:#10b981;--warning-color:#f59e0b;--error-color:#ef4444}.ai-rss-rewriter-modern-admin *{box-sizing:border-box}.ai-rss-rewriter-modern-admin{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--background-secondary);color:var(--text-primary);line-height:1.6;margin:-20px -20px -10px -2px;min-height:100vh}.admin-container{display:flex;min-height:100vh}.sidebar{width:280px;background:var(--background);border-right:1px solid var(--border-color);box-shadow:var(--shadow-sm);position:fixed;height:100vh;overflow-y:auto;z-index:1000}.sidebar-header{padding:1.5rem;border-bottom:1px solid var(--border-color);background:var(--background)}.logo{display:flex;align-items:center;gap:.75rem;font-size:1.25rem;font-weight:700;color:var(--text-primary)}.logo-icon{width:2rem;height:2rem;background:linear-gradient(135deg,var(--primary-color),var(--primary-light));border-radius:.5rem;display:flex;align-items:center;justify-content:center;color:white;font-weight:bold}.nav-menu{padding:1rem 0}.nav-item{display:block;padding:.75rem 1.5rem;color:var(--text-secondary);text-decoration:none;transition:all .2s ease;border-left:3px solid transparent}.nav-item:hover{background:var(--secondary-color);color:var(--text-primary);border-left-color:var(--primary-color)}.nav-item.active{background:rgba(32,166,79,.1);color:var(--primary-color);border-left-color:var(--primary-color);font-weight:600}.nav-item .nav-icon{margin-right:.75rem;width:1.25rem;display:inline-block}.main-content{flex:1;display:flex;flex-direction:column;margin-left:280px}.header{background:var(--background);border-bottom:1px solid var(--border-color);padding:1rem 2rem;box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:999}.header-content{display:flex;justify-content:space-between;align-items:center}.page-title{font-size:1.875rem;font-weight:700;color:var(--text-primary);margin:0}.header-actions{display:flex;gap:1rem;align-items:center}';
}

function airsrefe_get_modern_js() {
    // Return the content of the external JavaScript file
    $js_file = plugin_dir_path(__FILE__) . 'assets/admin-modern.js';
    if (file_exists($js_file)) {
        return file_get_contents($js_file);
    }
    
    // Fallback to inline code if file doesn't exist
    return 'jQuery(document).ready(function($){"use strict";const ArrModern={init:function(){this.bindEvents();this.initializeComponents();this.setupKeyboardShortcuts()},bindEvents:function(){$("#refresh-feeds").on("click",this.refreshFeeds.bind(this));$("#manual-run-all").on("click",this.runAllFeeds.bind(this));$("#bulk-select-all").on("change",this.toggleBulkSelect);$(".feed-checkbox").on("change",this.updateBulkSelection);$("#bulk-form").on("submit",this.handleBulkAction);$(document).on("click",".modal-close",this.closeModal);$(document).on("click",".modal",this.handleModalClick);$("#copy-log").on("click",this.copyLog)}};ArrModern.init();});';
}

add_action('plugins_loaded', 'airsrefe_check_version');
function airsrefe_check_version() {
$current_version = get_option('airsrefe_version', '0.9');
if (version_compare($current_version, AIRSREFE_VERSION, '<')) {
airsrefe_migrate_from_ai_rss();
airsrefe_create_assets();
if (function_exists('airsrefe_init_default_prompts')) {
airsrefe_init_default_prompts();
}
update_option('airsrefe_version', AIRSREFE_VERSION);
}
}

function airsrefe_migrate_from_ai_rss() {
$migrations = [
'ai_rss_feeds' => 'airsrefe_feeds',
'ai_rss_openai_key' => 'airsrefe_openai_key',
'ai_rss_cron_interval' => 'airsrefe_cron_interval',
'ai_rss_generate_tags' => 'airsrefe_generate_tags',
'ai_rss_image_source' => 'airsrefe_image_source',
'ai_rss_cache_time' => 'airsrefe_cache_time',
'ai_rss_log' => 'airsrefe_log',
'ai_rss_logs' => 'airsrefe_logs'
];

foreach ($migrations as $old => $new) {
$value = get_option($old);
if ($value !== false) {
update_option($new, $value);
}
}

airsrefe_append_log('✅ Migration from AI RSS Rewriter completed');
}

function airsrefe_init_default_prompts() {
if (get_option('airsrefe_prompts')) return;

$prompts = [
'content_rewrite' => [
'name' => 'Content Rewriter',
'prompt' => 'Please rewrite this news article to make it completely unique while preserving all key information.

IMPORTANT: Format your response EXACTLY as follows:

Title: [Write new unique title here]

Content: [Write the full rewritten article content here]

===ORIGINAL ARTICLE===
Title: "{title}"

Content:
{content}',
'type' => 'content',
'created' => current_time('mysql')
],
'title_generator' => [
'name' => 'Title Generator',
'prompt' => 'Create a compelling, unique headline for this article. Respond only with the title:

Original title: "{title}"
Article content: "{content}"',
'type' => 'title',
'created' => current_time('mysql')
],
'tags_generator' => [
'name' => 'Tags Generator',
'prompt' => 'Generate 5-8 relevant tags for this article. Return only the tags separated by commas, in lowercase.

Title: {title}
Content: {content}',
'type' => 'tags',
'created' => current_time('mysql')
],
'seo_description' => [
'name' => 'SEO Description',
'prompt' => 'Create a compelling SEO meta description (150-160 characters) for this article:

{content}',
'type' => 'seo',
'created' => current_time('mysql')
],
'image_prompt' => [
'name' => 'Image Generator',
'prompt' => 'Create a modern, eye-catching news illustration for: "{title}". Professional, clean, news website suitable.',
'type' => 'image',
'created' => current_time('mysql')
]
];

update_option('airsrefe_prompts', $prompts);
}

function airsrefe_cleanup_transients() {
$cache_key = 'airsrefe_transients_to_clean';
$transients_to_clean = wp_cache_get($cache_key);

if ($transients_to_clean === false) {
$all_options = wp_load_alloptions();
$transients_to_clean = [];

foreach ($all_options as $option_name => $option_value) {
if (strpos($option_name, '_transient_airsrefe_') === 0 || 
strpos($option_name, '_transient_timeout_airsrefe_') === 0) {
$transients_to_clean[] = $option_name;
}
}

wp_cache_set($cache_key, $transients_to_clean, '', 3600);
}

foreach ($transients_to_clean as $transient_name) {
if (strpos($transient_name, '_transient_timeout_') === 0) {
continue;
}

if (strpos($transient_name, '_transient_') === 0) {
$transient_key = str_replace('_transient_', '', $transient_name);
delete_transient($transient_key);
}
}

wp_cache_delete($cache_key);
}

function airsrefe_log_activation() {
$features = [
'GD' => extension_loaded('gd') ? 'Yes' : 'No',
'WebP' => function_exists('imagewebp') ? 'Yes' : 'No'
];

airsrefe_append_log("🚀 AI RSS Rewriter activated (GD: {$features['GD']}, WebP: {$features['WebP']})");
}

add_filter('plugin_action_links_' . plugin_basename(__FILE__), function($links) {
array_unshift($links, '<a href="' . esc_url(admin_url('admin.php?page=ai-rss-rewriter')) . '">Settings</a>');
return $links;
});

add_filter('plugin_row_meta', function($links, $file) {
if ($file === plugin_basename(__FILE__)) {
$links[] = '<a href="' . esc_url(admin_url('admin.php?page=ai-rss-rewriter&tab=logs')) . '">Logs</a>';
$links[] = '<a href="' . esc_url(admin_url('admin.php?page=ai-rss-rewriter&tab=stats')) . '">Statistics</a>';
}
return $links;
}, 10, 2);

register_deactivation_hook(__FILE__, function() {
wp_clear_scheduled_hook('airsrefe_auto_parse_event');
airsrefe_append_log('⛔ Plugin deactivated. All scheduled tasks cleared');
});

add_action('admin_init', function() {
airsrefe_create_assets();
});

add_action('rest_api_init', function() {
register_rest_route('airsrefe/v1', '/feeds', [
'methods' => 'GET',
'callback' => function() {
return new WP_REST_Response(get_option('airsrefe_feeds', []), 200);
},
'permission_callback' => function() {
return current_user_can('manage_options');
}
]);

register_rest_route('airsrefe/v1', '/stats', [
'methods' => 'GET',
'callback' => function() {
return airsrefe_get_stats_data();
},
'permission_callback' => function() {
return current_user_can('manage_options');
}
]);
});

function airsrefe_get_stats_data() {
    $cache_key = 'airsrefe_stats_data';
    $cached_stats = wp_cache_get($cache_key);
    
    if ($cached_stats !== false) {
        return new WP_REST_Response($cached_stats, 200);
    }
    
    $stats = [];
    $today_date = current_time('Y-m-d');
    
    // Use optimized helper functions
    $stats['posts_today'] = airsrefe_get_processed_posts_count($today_date);
    
    // Get 30-day count using optimized approach
    $month_cache_key = 'airsrefe_posts_30d_' . wp_date('Y-m-d');
    $posts_30d = wp_cache_get($month_cache_key);
    
    if ($posts_30d === false) {
        $month_posts = airsrefe_get_processed_posts([
            'date_query' => [
                [
                    'after' => '30 days ago',
                ]
            ]
        ]);
        
        $posts_30d = count($month_posts);
        // Cache for 30 minutes
        wp_cache_set($month_cache_key, $posts_30d, '', 1800);
    }
    
    $stats['posts_30d'] = (int) $posts_30d;

$feeds = get_option('airsrefe_feeds', []);
$stats['total_feeds'] = count($feeds);
$stats['active_feeds'] = count(array_filter($feeds, function($feed) { 
return !isset($feed['enabled']) || $feed['enabled']; 
}));

$logs = get_option('airsrefe_logs', []);
$successful = count(array_filter($logs, function($log) { return $log['success'] ?? false; }));
$stats['success_rate'] = count($logs) > 0 ? round(($successful / count($logs)) * 100) : 0;

$daily_costs = get_option('airsrefe_daily_costs', []);
$stats['today_cost'] = $daily_costs[$today_date] ?? 0.00;
$stats['budget_limit'] = get_option('airsrefe_daily_budget_limit', 10.00);

// Cache for 5 minutes
wp_cache_set($cache_key, $stats, '', 300);

return new WP_REST_Response($stats, 200);
}

add_action('wp_head', function() {
if (is_single() && get_post_meta(get_the_ID(), '_ai-rss-rewriter_processed_date', true)) {
echo '<!-- AI RSS Rewriter Post -->' . "\n";
}
});

add_action('wp_ajax_airsrefe_get_stats', 'airsrefe_ajax_get_stats');
function airsrefe_ajax_get_stats() {
if (!current_user_can('manage_options')) {
wp_die(-1);
}

$nonce = isset($_POST['nonce']) ? sanitize_text_field(wp_unslash($_POST['nonce'])) : '';
if (!wp_verify_nonce($nonce, 'airsrefe_ajax')) {
wp_die(-1);
}

$stats_response = airsrefe_get_stats_data();
wp_send_json_success($stats_response->get_data());
}

add_action('admin_head', function() {
$current_page = '';
if (isset($_GET['page'])) {
$nonce = isset($_GET['_wpnonce']) ? sanitize_text_field(wp_unslash($_GET['_wpnonce'])) : '';
if (wp_verify_nonce($nonce, 'airsrefe_admin_page')) {
$current_page = sanitize_text_field(wp_unslash($_GET['page']));
}
}

if ($current_page === 'ai-rss-rewriter') {
    echo '<div class="ajax-loading"><div class="spinner"></div></div>';
}
});

add_filter('admin_footer_text', function($text) {
$current_page = '';
if (isset($_GET['page'])) {
$nonce = isset($_GET['_wpnonce']) ? sanitize_text_field(wp_unslash($_GET['_wpnonce'])) : '';
if (wp_verify_nonce($nonce, 'airsrefe_admin_page')) {
$current_page = sanitize_text_field(wp_unslash($_GET['page']));
}
}

if ($current_page === 'ai-rss-rewriter') {
return sprintf(
/* translators: 1: Plugin name, 2: Plugin version number */
__('Thank you for using %1$s! Version %2$s', 'ai-rss-rewriter'),
'<strong>AI RSS Rewriter</strong>',
AIRSREFE_VERSION
);
}
return $text;
});

add_action('wp_dashboard_setup', function() {
if (current_user_can('manage_options')) {
wp_add_dashboard_widget(
'airsrefe_dashboard_widget',
'🤖 AI RSS Rewriter Status',
'airsrefe_dashboard_widget_content'
);
}
});
// Initialize default model settings on plugin activation
function airsrefe_initialize_model_defaults() {
$default_models = [
'airsrefe_model_content' => 'gpt-5-mini',
'airsrefe_model_title' => 'gpt-5-nano',
'airsrefe_model_tags' => 'gpt-5-nano', 
'airsrefe_model_seo' => 'gpt-5-nano',
'airsrefe_model_fallback' => 'gpt-4o-mini'
];

foreach ($default_models as $option => $default_value) {
if (get_option($option) === false) {
update_option($option, $default_value);
}
}

if (get_option('airsrefe_processing_mode') === false) {
update_option('airsrefe_processing_mode', 'ai');
}

if (get_option('airsrefe_daily_parsing_limit') === false) {
update_option('airsrefe_daily_parsing_limit', 50);
}

if (get_option('airsrefe_daily_budget_limit') === false) {
update_option('airsrefe_daily_budget_limit', 10.00);
}
}

// Function moved to main activation hook

add_action('init', function() {
static $initialized = false;
if (!$initialized) {
airsrefe_initialize_model_defaults();
$initialized = true;
}
});

// OPTIMIZATION: Register hook for asynchronous batch processing
add_action('airsrefe_process_batch', 'airsrefe_handle_batch_processing', 10, 3);

// OPTIMIZATION: Register hooks for monitoring and auto-adjustment
add_action('airsrefe_performance_monitor', 'airsrefe_performance_monitor');
add_action('airsrefe_auto_adjust', 'airsrefe_auto_adjust_limits');

// Schedule daily monitoring and auto-adjustment
if (!wp_next_scheduled('airsrefe_performance_monitor')) {
    wp_schedule_event(time(), 'hourly', 'airsrefe_performance_monitor');
}

if (!wp_next_scheduled('airsrefe_auto_adjust')) {
    wp_schedule_event(time() + 3600, 'daily', 'airsrefe_auto_adjust');
}
function airsrefe_dashboard_widget_content() {
$feeds = get_option('airsrefe_feeds', []);
$active_feeds = count(array_filter($feeds, function($feed) { 
return !isset($feed['enabled']) || $feed['enabled']; 
}));

$logs = get_option('airsrefe_logs', []);
$recent_logs = array_slice(array_reverse($logs), 0, 3);

$daily_costs = get_option('airsrefe_daily_costs', []);
$today_cost = $daily_costs[current_time('Y-m-d')] ?? 0.00;
$budget_limit = get_option('airsrefe_daily_budget_limit', 10.00);
?>
<div class="arr-dashboard-widget">
<div style="display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:1rem">
<div style="text-align:center;padding:.5rem;background:#f9f9f9;border-radius:4px">
<div style="font-size:1.5rem;font-weight:bold;color:#20a64f"><?php echo esc_html($active_feeds); ?></div>
<div style="font-size:.75rem;color:#666">Active Feeds</div>
</div>
<div style="text-align:center;padding:.5rem;background:#f9f9f9;border-radius:4px">
<div style="font-size:1.5rem;font-weight:bold;color:#3b82f6"><?php echo esc_html(count($logs)); ?></div>
<div style="font-size:.75rem;color:#666">Total Posts</div>
</div>
<div style="text-align:center;padding:.5rem;background:#f9f9f9;border-radius:4px">
<div style="font-size:1.5rem;font-weight:bold;color:#f59e0b">$<?php echo esc_html(number_format($today_cost, 2)); ?></div>
<div style="font-size:.75rem;color:#666">Today's Cost</div>
</div>
</div>

<?php if (!empty($recent_logs)): ?>
<div style="margin-bottom:1rem">
<h4 style="margin:0 0 .5rem 0;font-size:.875rem;color:#666">Recent Activity</h4>
<?php foreach ($recent_logs as $log): 
$success = $log['success'] ?? false;
$icon = $success ? '✅' : '⚠️';
$log_date = $log['date'] ?? current_time('mysql');
$time_ago = human_time_diff(strtotime($log_date), current_time('timestamp'));

$log_title = '';
if (isset($log['unique']) && !empty($log['unique'])) {
$log_title = $log['unique'];
} elseif (isset($log['original']) && !empty($log['original'])) {
$log_title = $log['original'];
} else {
$log_title = 'Unknown';
}
?>
<div style="font-size:.75rem;margin-bottom:.25rem;display:flex;align-items:center;gap:.5rem">
<span><?php echo esc_html($icon); ?></span>
<span style="flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">
<?php echo esc_html(mb_substr($log_title, 0, 30)); ?>
</span>
<span style="color:#999"><?php echo esc_html($time_ago); ?> ago</span>
</div>
<?php endforeach; ?>
</div>
<?php endif; ?>

<div style="text-align:center">
<a href="<?php echo esc_url(admin_url('admin.php?page=ai-rss-rewriter')); ?>" class="button button-primary">
🚀 Manage AI RSS Rewriter
</a>
</div>
</div>
<?php
}

// Initialize enhanced systems
add_action('init', function() {
    if (function_exists('airsrefe_init_background_queue')) {
        airsrefe_init_background_queue();
    }
    
    if (function_exists('airsrefe_prewarm_feed_cache')) {
        $feeds = get_option('airsrefe_feeds', []);
        $active_feeds = array_filter($feeds, function($feed) {
            return !isset($feed['enabled']) || $feed['enabled'];
        });
        $feed_urls = array_column($active_feeds, 'url');
        
        if (!empty($feed_urls)) {
            wp_schedule_single_event(time() + 300, 'airsrefe_warm_feeds', [array_slice($feed_urls, 0, 5)]);
        }
    }
}, 5);

add_action('airsrefe_warm_feeds', function($feed_urls) {
    if (function_exists('airsrefe_prewarm_feed_cache')) {
        airsrefe_prewarm_feed_cache($feed_urls);
    }
});

add_action('airsrefe_warm_feed_cache', function($feed_url) {
    if (function_exists('airsrefe_get_feed_with_smart_cache')) {
        airsrefe_get_feed_with_smart_cache($feed_url);
    }
});

/**
 * Optimized function to get posts with AI RSS Rewriter processing
 * Uses efficient caching and avoids slow meta queries
 */
function airsrefe_get_processed_posts($args = []) {
    $defaults = [
        'post_type' => 'post',
        'post_status' => 'publish',
        'posts_per_page' => -1,
        'fields' => 'ids',
        'no_found_rows' => true,
        'update_post_meta_cache' => false,
        'update_post_term_cache' => false,
        'cache_results' => false
    ];
    
    $args = wp_parse_args($args, $defaults);
    
    // Use a more efficient approach with caching and filtering
    $cache_key = 'airsrefe_processed_posts_' . md5(serialize($args));
    $posts = wp_cache_get($cache_key);
    
    if ($posts === false) {
        // Get all posts first, then filter in PHP (more efficient for small datasets)
        $all_posts = get_posts([
            'post_type' => $args['post_type'],
            'post_status' => $args['post_status'],
            'posts_per_page' => $args['posts_per_page'],
            'fields' => 'ids',
            'no_found_rows' => true,
            'update_post_meta_cache' => false,
            'update_post_term_cache' => false,
            'cache_results' => false
        ]);
        
        // Filter for processed posts using get_post_meta
        $processed_posts = [];
        foreach ($all_posts as $post_id) {
            $processed_date = get_post_meta($post_id, '_ai-rss-rewriter_processed_date', true);
            if (!empty($processed_date)) {
                $processed_posts[] = $post_id;
            }
        }
        
        $posts = $processed_posts;
        wp_cache_set($cache_key, $posts, '', 1800); // Cache for 30 minutes
    }
    
    return $posts;
}

/**
 * Get count of processed posts for a specific date
 * Uses efficient caching to avoid repeated queries
 */
function airsrefe_get_processed_posts_count($date = null) {
    if (!$date) {
        $date = current_time('Y-m-d');
    }
    
    $cache_key = 'airsrefe_processed_count_' . $date;
    $count = wp_cache_get($cache_key);
    
    if ($count === false) {
        // Use a more efficient approach for date-specific counts
        $year = wp_date('Y', strtotime($date));
        $month = wp_date('m', strtotime($date));
        $day = wp_date('j', strtotime($date));
        
        // Get posts for the specific date
        $date_posts = get_posts([
            'post_type' => 'post',
            'post_status' => 'publish',
            'date_query' => [
                [
                    'year'  => $year,
                    'month' => $month,
                    'day'   => $day,
                ]
            ],
            'fields' => 'ids',
            'posts_per_page' => -1,
            'no_found_rows' => true,
            'update_post_meta_cache' => false,
            'update_post_term_cache' => false,
            'cache_results' => false
        ]);
        
        // Count processed posts for this date
        $count = 0;
        foreach ($date_posts as $post_id) {
            $processed_date = get_post_meta($post_id, '_ai-rss-rewriter_processed_date', true);
            if (!empty($processed_date)) {
                $count++;
            }
        }
        
        // Cache for 1 hour
        wp_cache_set($cache_key, $count, '', 3600);
    }
    
    return $count;
}


// Clear translation cache
function airsrefe_clear_translation_cache() {
    static $translations = null;
    $translations = null;
    
    wp_cache_flush();
    
    if (function_exists('wp_cache_flush_group')) {
        wp_cache_flush_group('translations');
    }
    
    delete_transient('airsrefe_translations_cache');
    
    airsrefe_append_log("🧹 Translation cache cleared");
}