Core Configuration Constants

// wp-config.php additions for optimal performance
define('ANI_MAX_EXECUTION_TIME', 600);
define('ANI_MEMORY_LIMIT', '512M');
define('ANI_CACHE_DURATION', 86400); // 24 hours
define('ANI_MAX_CONCURRENT_REQUESTS', 5);
define('ANI_DEBUG_MODE', false);
define('ANI_LOG_LEVEL', 'info'); // debug, info, warning, error

// OpenAI Configuration
define('ANI_OPENAI_MAX_TOKENS', 2048);
define('ANI_OPENAI_TEMPERATURE', 0.7);
define('ANI_OPENAI_TIMEOUT', 60);

Database Configuration

// Custom database settings
define('ANI_DB_CHARSET', 'utf8mb4');
define('ANI_DB_COLLATE', 'utf8mb4_unicode_ci');
define('ANI_MAX_DB_CONNECTIONS', 10);
define('ANI_DB_TIMEOUT', 30);

// Table optimization settings
define('ANI_AUTO_OPTIMIZE_TABLES', true);
define('ANI_CLEANUP_OLD_LOGS', 30); // days

Cron Configuration

// Disable WordPress cron and use system cron for better performance
define('DISABLE_WP_CRON', true);

// System crontab entries
# RSS processing every 5 minutes
*/5 * * * * /usr/bin/wget -q -O - "https://yoursite.com/wp-cron.php?doing_wp_cron" >/dev/null 2>&1

# Original content generation every hour
0 * * * * /usr/bin/wget -q -O - "https://yoursite.com/?ani_cron=original" >/dev/null 2>&1

# Web scraping every 30 minutes  
*/30 * * * * /usr/bin/wget -q -O - "https://yoursite.com/?ani_cron=scraping" >/dev/null 2>&1

Engine Flow Diagram

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   RSS Engine    │    │   AI Engine     │    │ Scraping Engine │
│                 │    │                 │    │                 │
│ • Feed Parser   │    │ • OpenAI API    │    │ • URL Processor │
│ • Content Filter│    │ • Prompt Manager│    │ • Content Extract│
│ • Deduplication │    │ • Cache System  │    │ • Anti-Detection│
│ • Image Sourcing│    │ • Multi-Language│    │ • Rate Limiting │
└─────────┬───────┘    └─────────┬───────┘    └─────────┬───────┘
          │                      │                      │
          └──────────────────────┼──────────────────────┘
                                 │
                    ┌─────────────▼─────────────┐
                    │    Content Processor     │
                    │                          │
                    │ • Quality Validation     │
                    │ • SEO Optimization       │
                    │ • Image Processing       │
                    │ • WordPress Integration  │
                    └─────────────┬─────────────┘
                                 │
                    ┌─────────────▼─────────────┐
                    │   Published Content      │
                    └──────────────────────────┘

Class Structure

// Main Plugin Class
class AutoNewsImporter {
    private $rss_engine;
    private $ai_engine;
    private $scraping_engine;
    private $content_processor;
    private $cache_manager;
    
    public function __construct() {
        $this->init_engines();
        $this->register_hooks();
    }
    
    private function init_engines() {
        $this->rss_engine = new ANI_RSS_Engine();
        $this->ai_engine = new ANI_AI_Engine();
        $this->scraping_engine = new ANI_Scraping_Engine();
        $this->content_processor = new ANI_Content_Processor();
        $this->cache_manager = new ANI_Cache_Manager();
    }
}

// Engine Interfaces
interface ANI_Engine_Interface {
    public function process();
    public function validate_content($content);
    public function get_stats();
}

Core Tables

-- Main content tracking table
CREATE TABLE `wp_ani_content` (
    `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
    `source_url` varchar(500) NOT NULL,
    `content_hash` varchar(64) NOT NULL,
    `title` text NOT NULL,
    `content` longtext NOT NULL,
    `post_id` bigint(20) unsigned DEFAULT NULL,
    `engine_type` enum('rss','ai','scraping') NOT NULL,
    `status` enum('pending','processing','published','failed') DEFAULT 'pending',
    `language` varchar(10) DEFAULT 'en',
    `category_id` bigint(20) unsigned DEFAULT NULL,
    `image_url` varchar(500) DEFAULT NULL,
    `meta_data` longtext DEFAULT NULL,
    `created_at` timestamp DEFAULT CURRENT_TIMESTAMP,
    `updated_at` timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    PRIMARY KEY (`id`),
    UNIQUE KEY `content_hash` (`content_hash`),
    KEY `engine_type` (`engine_type`),
    KEY `status` (`status`),
    KEY `created_at` (`created_at`)
);

-- RSS feeds configuration
CREATE TABLE `wp_ani_rss_feeds` (
    `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
    `feed_url` varchar(500) NOT NULL,
    `feed_name` varchar(255) NOT NULL,
    `category_id` bigint(20) unsigned DEFAULT NULL,
    `language` varchar(10) DEFAULT 'en',
    `active` tinyint(1) DEFAULT 1,
    `last_check` timestamp NULL DEFAULT NULL,
    `check_interval` int(11) DEFAULT 300,
    `total_processed` bigint(20) DEFAULT 0,
    `settings` longtext DEFAULT NULL,
    `created_at` timestamp DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (`id`),
    UNIQUE KEY `feed_url` (`feed_url`)
);

-- Processing statistics
CREATE TABLE `wp_ani_stats` (
    `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
    `date` date NOT NULL,
    `engine_type` enum('rss','ai','scraping') NOT NULL,
    `total_processed` int(11) DEFAULT 0,
    `successful` int(11) DEFAULT 0,
    `failed` int(11) DEFAULT 0,
    `processing_time` float DEFAULT 0,
    `memory_usage` bigint(20) DEFAULT 0,
    `api_calls` int(11) DEFAULT 0,
    PRIMARY KEY (`id`),
    UNIQUE KEY `date_engine` (`date`,`engine_type`)
);

Action Hooks

// ===============================
// CONTENT PROCESSING LIFECYCLE
// ===============================

// Pre-processing hooks
do_action('ani_before_content_processing', $content, $engine_type);
do_action('ani_content_received', $raw_content, $source_url, $engine_type);
do_action('ani_content_validated', $content, $validation_result);
do_action('ani_content_sanitized', $sanitized_content, $original_content);

// Processing hooks
do_action('ani_content_processing_started', $content_id, $engine_type);
do_action('ani_content_ai_enhanced', $enhanced_content, $original_content, $ai_model);
do_action('ani_content_translated', $translated_content, $source_language, $target_language);
do_action('ani_content_seo_optimized', $optimized_content, $seo_data);

// Post-processing hooks
do_action('ani_after_content_processing', $post_id, $content, $engine_type);
do_action('ani_content_published', $post_id, $source_data);
do_action('ani_content_scheduled', $post_id, $schedule_time);
do_action('ani_content_failed', $error, $content_data);
do_action('ani_content_skipped', $reason, $content_data);

// ===============================
// ENGINE-SPECIFIC HOOKS
// ===============================

// RSS Engine hooks
do_action('ani_rss_feed_fetched', $feed_url, $feed_data);
do_action('ani_rss_feed_parsed', $feed_id, $items, $feed_url);
do_action('ani_rss_item_processed', $item_data, $feed_id);
do_action('ani_rss_feed_processed', $feed_id, $items_count);
do_action('ani_rss_feed_failed', $feed_id, $error_message);
do_action('ani_rss_duplicate_detected', $item_hash, $existing_post_id);

// AI Engine hooks
do_action('ani_ai_prompt_prepared', $prompt, $content_type, $language);
do_action('ani_ai_request_sent', $prompt, $api_endpoint, $parameters);
do_action('ani_ai_response_received', $response, $prompt, $execution_time);
do_action('ani_ai_content_generated', $content, $prompt_data);
do_action('ani_ai_content_enhanced', $enhanced_content, $original_content);
do_action('ani_ai_translation_completed', $translated_text, $source_lang, $target_lang);
do_action('ani_ai_api_limit_reached', $api_name, $limit_info);
do_action('ani_ai_api_error', $error_code, $error_message, $api_endpoint);

// Web Scraping Engine hooks
do_action('ani_scraping_started', $url, $scraping_config);
do_action('ani_scraping_page_fetched', $url, $html_content, $response_code);
do_action('ani_scraping_content_extracted', $extracted_content, $url);
do_action('ani_scraping_completed', $url, $content);
do_action('ani_scraping_failed', $url, $error_message);
do_action('ani_scraping_blocked', $url, $block_reason);
do_action('ani_scraping_rate_limited', $url, $retry_after);

// ===============================
// IMAGE PROCESSING HOOKS
// ===============================

// Image sourcing hooks
do_action('ani_image_search_started', $search_query, $image_source);
do_action('ani_image_found', $image_url, $image_data, $source);
do_action('ani_image_downloaded', $image_url, $local_path);
do_action('ani_image_optimized', $image_path, $optimization_stats);
do_action('ani_image_uploaded', $image_id, $post_id, $image_data);
do_action('ani_image_processing_failed', $image_url, $error_message);

// ===============================
// DEDUPLICATION SYSTEM HOOKS
// ===============================

do_action('ani_duplicate_check_started', $content_hash, $engine_type);
do_action('ani_duplicate_detected', $content_hash, $existing_post_id, $new_content);
do_action('ani_duplicate_resolved', $resolution_method, $content_data);
do_action('ani_unique_content_confirmed', $content_hash, $content_data);

// ===============================
// CRON AND SCHEDULING HOOKS
// ===============================

do_action('ani_cron_job_started', $job_type, $job_config);
do_action('ani_cron_job_completed', $job_type, $execution_stats);
do_action('ani_cron_job_failed', $job_type, $error_message);
do_action('ani_cron_schedule_updated', $job_type, $new_schedule);

// ===============================
// CACHE SYSTEM HOOKS
// ===============================

do_action('ani_cache_miss', $cache_key, $cache_group);
do_action('ani_cache_hit', $cache_key, $cache_group);
do_action('ani_cache_set', $cache_key, $cache_group, $expiration);
do_action('ani_cache_cleared', $cache_type);
do_action('ani_cache_expired', $cache_key, $cache_group);

// ===============================
// SYSTEM AND MAINTENANCE HOOKS
// ===============================

// Plugin lifecycle hooks
do_action('ani_plugin_activated');
do_action('ani_plugin_deactivated');
do_action('ani_plugin_updated', $old_version, $new_version);
do_action('ani_database_upgraded', $old_version, $new_version);

// Configuration hooks
do_action('ani_settings_updated', $setting_group, $old_values, $new_values);
do_action('ani_api_key_updated', $api_service, $key_status);
do_action('ani_feed_added', $feed_id, $feed_data);
do_action('ani_feed_removed', $feed_id);
do_action('ani_feed_status_changed', $feed_id, $old_status, $new_status);

// Performance and monitoring hooks
do_action('ani_performance_monitored', $operation, $execution_time, $memory_usage);
do_action('ani_memory_limit_reached', $current_usage, $limit);
do_action('ani_processing_queue_full', $queue_size, $max_size);
do_action('ani_maintenance_completed', $stats);

// Error and logging hooks
do_action('ani_error_logged', $error_level, $message);
do_action('ani_debug_info_collected', $debug_data);
do_action('ani_log_rotated', $log_file, $archive_file);

// ===============================
// MULTILINGUAL HOOKS
// ===============================

do_action('ani_language_detected', $detected_language, $content);
do_action('ani_language_switched', $old_language, $new_language);
do_action('ani_translation_started', $content, $source_lang, $target_lang);
do_action('ani_translation_completed', $translated_content, $source_lang, $target_lang);

// ===============================
// QUALITY CONTROL HOOKS
// ===============================

do_action('ani_quality_check_started', $content_id, $quality_metrics);
do_action('ani_quality_check_passed', $content_id, $quality_score);
do_action('ani_quality_check_failed', $content_id, $failure_reasons);
do_action('ani_content_approved', $content_id, $approval_data);
do_action('ani_content_rejected', $content_id, $rejection_reason);

// ===============================
// SECURITY HOOKS
// ===============================

do_action('ani_security_scan_completed', $scan_results);
do_action('ani_suspicious_activity_detected', $activity_type, $details);
do_action('ani_access_denied', $user_id, $attempted_action);
do_action('ani_api_key_validated', $api_service, $validation_result);

Filter Hooks

// ===============================
// CONTENT PROCESSING FILTERS
// ===============================

// Content filtering and manipulation
$content = apply_filters('ani_filter_content', $content, $source);
$title = apply_filters('ani_filter_title', $title, $content);
$excerpt = apply_filters('ani_filter_excerpt', $excerpt, $content);
$content = apply_filters('ani_sanitize_content', $content, $engine_type);
$content = apply_filters('ani_validate_content', $content, $validation_rules);
$content_length = apply_filters('ani_max_content_length', 5000, $content_type);
$min_content_length = apply_filters('ani_min_content_length', 300, $content_type);

// Content enhancement filters
$enhanced_content = apply_filters('ani_enhance_content', $content, $enhancement_options);
$seo_content = apply_filters('ani_seo_optimize_content', $content, $seo_settings);
$formatted_content = apply_filters('ani_format_content', $content, $format_rules);

// ===============================
// AI PROCESSING FILTERS
// ===============================

// AI prompts and responses
$prompt = apply_filters('ani_ai_prompt', $prompt, $content_type, $language);
$system_prompt = apply_filters('ani_ai_system_prompt', $system_prompt, $content_type);
$ai_response = apply_filters('ani_ai_response', $response, $prompt);
$ai_parameters = apply_filters('ani_ai_parameters', $parameters, $content_type);
$ai_model = apply_filters('ani_ai_model_selection', 'GPT-4.1', $content_type);

// Translation filters
$translation_prompt = apply_filters('ani_translation_prompt', $prompt, $source_lang, $target_lang);
$translated_content = apply_filters('ani_translated_content', $content, $source_lang, $target_lang);

// ===============================
// RSS PROCESSING FILTERS
// ===============================

// RSS feed processing
$feed_url = apply_filters('ani_rss_feed_url', $feed_url, $feed_config);
$feed_items = apply_filters('ani_rss_feed_items', $feed_items, $feed_url);
$rss_content = apply_filters('ani_rss_content_extract', $content, $rss_item);
$rss_title = apply_filters('ani_rss_title_clean', $title, $rss_item);
$feed_frequency = apply_filters('ani_rss_check_frequency', 300, $feed_id);

// ===============================
// SCRAPING FILTERS
// ===============================

// Web scraping filters
$scraping_config = apply_filters('ani_scraping_config', $config, $url);
$extracted_content = apply_filters('ani_scraped_content', $content, $url);
$scraping_selectors = apply_filters('ani_scraping_selectors', $selectors, $url);
$user_agents = apply_filters('ani_scraping_user_agents', $user_agents, $url);
$scraping_delay = apply_filters('ani_scraping_delay', 2, $url);

// ===============================
// IMAGE PROCESSING FILTERS
// ===============================

// Image sourcing and processing
$image_url = apply_filters('ani_filter_image', $image_url, $content);
$image_search_query = apply_filters('ani_image_search_query', $query, $content);
$image_sources = apply_filters('ani_image_sources', $sources, $content_type);
$image_alt_text = apply_filters('ani_image_alt_text', $alt_text, $image_data);
$image_caption = apply_filters('ani_image_caption', $caption, $image_data);
$image_quality = apply_filters('ani_image_compression_quality', 85, $image_type);

// ===============================
// POST CREATION FILTERS
// ===============================

// WordPress post data
$post_data = apply_filters('ani_pre_insert_post', $post_data, $source_data);
$post_meta = apply_filters('ani_post_meta', $meta_data, $post_id);
$post_categories = apply_filters('ani_post_categories', $categories, $content, $engine_type);
$post_tags = apply_filters('ani_post_tags', $tags, $content, $engine_type);
$post_author = apply_filters('ani_post_author', $author_id, $content_source);
$post_status = apply_filters('ani_post_status', 'publish', $content_quality);
$post_date = apply_filters('ani_post_date', $post_date, $content_source);

// ===============================
// CONFIGURATION FILTERS
// ===============================

// Engine settings
$settings = apply_filters('ani_engine_settings', $settings, $engine_type);
$rss_settings = apply_filters('ani_rss_engine_settings', $settings);
$ai_settings = apply_filters('ani_ai_engine_settings', $settings);
$scraping_settings = apply_filters('ani_scraping_engine_settings', $settings);

// Cache configuration
$cache_duration = apply_filters('ani_cache_duration', 3600, $cache_type);
$cache_key = apply_filters('ani_cache_key', $key, $data, $cache_group);
$cache_groups = apply_filters('ani_cache_groups', $groups);

// ===============================
// QUALITY CONTROL FILTERS
// ===============================

// Content quality filters
$quality_threshold = apply_filters('ani_quality_threshold', 75, $content_type);
$spam_keywords = apply_filters('ani_spam_keywords', $keywords, $language);
$banned_domains = apply_filters('ani_banned_domains', $domains);
$allowed_content_types = apply_filters('ani_allowed_content_types', $types);

// ===============================
// DEDUPLICATION FILTERS
// ===============================

// Duplicate detection
$duplicate_threshold = apply_filters('ani_duplicate_threshold', 0.8, $content_type);
$hash_algorithm = apply_filters('ani_hash_algorithm', 'sha256', $content_type);
$similarity_check = apply_filters('ani_similarity_check_enabled', true, $engine_type);

// ===============================
// MULTILINGUAL FILTERS
// ===============================

// Language processing
$detected_language = apply_filters('ani_detected_language', $language, $content);
$target_languages = apply_filters('ani_target_languages', $languages, $content_type);
$language_prompts = apply_filters('ani_language_specific_prompts', $prompts, $language);

// ===============================
// API AND EXTERNAL SERVICE FILTERS
// ===============================

// API configuration
$api_endpoints = apply_filters('ani_api_endpoints', $endpoints, $service);
$api_headers = apply_filters('ani_api_headers', $headers, $service, $endpoint);
$api_timeout = apply_filters('ani_api_timeout', 30, $service);
$api_retry_attempts = apply_filters('ani_api_retry_attempts', 3, $service);

// Rate limiting
$rate_limits = apply_filters('ani_rate_limits', $limits, $service);
$rate_limit_window = apply_filters('ani_rate_limit_window', 3600, $service);

// ===============================
// SCHEDULING AND CRON FILTERS
// ===============================

// Cron configuration
$cron_schedules = apply_filters('ani_cron_schedules', $schedules);
$cron_frequency = apply_filters('ani_cron_frequency', $frequency, $job_type);
$max_execution_time = apply_filters('ani_max_execution_time', 300, $operation);

// ===============================
// PERFORMANCE FILTERS
// ===============================

// Performance tuning
$memory_limit = apply_filters('ani_memory_limit', '512M', $operation);
$batch_size = apply_filters('ani_batch_size', 10, $operation);
$concurrent_processes = apply_filters('ani_concurrent_processes', 3, $engine_type);

// ===============================
// SECURITY FILTERS
// ===============================

// Security configuration
$allowed_domains = apply_filters('ani_allowed_domains', $domains, $context);
$security_headers = apply_filters('ani_security_headers', $headers, $request_type);
$input_validation_rules = apply_filters('ani_validation_rules', $rules, $input_type);

// ===============================
// DEBUGGING AND LOGGING FILTERS
// ===============================

// Debug configuration
$debug_level = apply_filters('ani_debug_level', 'info', $context);
$log_retention_days = apply_filters('ani_log_retention_days', 30);
$debug_data = apply_filters('ani_debug_data', $data, $operation);

Caching Strategy

// Multi-layer caching system
class ANI_Cache_Manager {
    private $memory_cache = array();
    private $transient_cache_duration = 3600;
    
    public function get($key, $group = 'default') {
        // Level 1: Memory cache (fastest)
        if (isset($this->memory_cache[$group][$key])) {
            return $this->memory_cache[$group][$key];
        }
        
        // Level 2: WordPress transients
        $transient_key = "ani_{$group}_{$key}";
        $value = get_transient($transient_key);
        
        if ($value !== false) {
            $this->memory_cache[$group][$key] = $value;
            return $value;
        }
        
        return false;
    }
    
    public function set($key, $value, $group = 'default', $expiration = null) {
        $expiration = $expiration ?: $this->transient_cache_duration;
        
        // Store in memory
        $this->memory_cache[$group][$key] = $value;
        
        // Store in transients
        $transient_key = "ani_{$group}_{$key}";
        set_transient($transient_key, $value, $expiration);
    }
}

Performance Monitoring

// Performance tracking
class ANI_Performance_Monitor {
    private $start_time;
    private $start_memory;
    
    public function start_timer($operation) {
        $this->start_time = microtime(true);
        $this->start_memory = memory_get_usage(true);
    }
    
    public function end_timer($operation) {
        $execution_time = microtime(true) - $this->start_time;
        $memory_used = memory_get_usage(true) - $this->start_memory;
        
        // Log performance data
        $this->log_performance($operation, $execution_time, $memory_used);
        
        return array(
            'execution_time' => $execution_time,
            'memory_used' => $memory_used
        );
    }
}

Debug Mode Configuration

// Enable debug mode in wp-config.php
define('ANI_DEBUG', true);
define('ANI_DEBUG_LOG', true);
define('ANI_DEBUG_LEVEL', 'verbose'); // basic, verbose, trace

// Or enable via plugin settings
add_action('ani_debug_mode_enabled', function() {
    // Debug mode activated
    ini_set('log_errors', 1);
    ini_set('error_log', WP_CONTENT_DIR . '/ani-debug.log');
});