// Gold Code validation example
class GoldCodeValidator {
    public function validate_gold_code($code, $site_url) {
        // Validate format (alphanumeric, specific length)
        if (!preg_match('/^[A-Z0-9]{12}$/', $code)) {
            return false;
        }
        
        // Rate limiting
        if ($this->is_rate_limited($site_url)) {
            return false;
        }
        
        // Verify with Nuclear Engagement API
        return $this->verify_with_api($code, $site_url);
    }
    
    private function is_rate_limited($site_url) {
        $transient_key = 'ne_auth_attempts_' . md5($site_url);
        $attempts = get_transient($transient_key) ?: 0;
        
        if ($attempts >= 5) {
            return true;
        }
        
        set_transient($transient_key, $attempts + 1, HOUR_IN_SECONDS);
        return false;
    }
}

// Capability checks example
public function check_quiz_permissions($quiz_id, $action = 'read') {
    $required_caps = [
        'read' => 'read',
        'edit' => 'edit_posts',
        'delete' => 'delete_posts',
        'manage' => 'manage_options'
    ];
    
    $required_cap = $required_caps[$action] ?? 'read';
    
    if (!current_user_can($required_cap)) {
        wp_die(__('Insufficient permissions.', 'nuclear-engagement'));
    }
    
    // Additional quiz-specific checks
    if ($action !== 'read' && !$this->user_can_edit_quiz($quiz_id)) {
        wp_die(__('Cannot edit this quiz.', 'nuclear-engagement'));
    }
}

// MFA integration for admin operations
add_action('nuclear_engagement_admin_login', function($user_id) {
    if (class_exists('Two_Factor_Core')) {
        $providers = Two_Factor_Core::get_enabled_providers_for_user($user_id);
        if (!empty($providers)) {
            // Require MFA for sensitive operations
            Two_Factor_Core::require_two_factor($user_id);
        }
    }
});

// GDPR data collection notice
public function get_privacy_policy_content() {
    return [
        'plugin_name' => __('Nuclear Engagement', 'nuclear-engagement'),
        'policy_text' => __(
            'This plugin collects the following data when you take quizzes: ' .
            'your responses, completion time, score, and IP address. ' .
            'This data is used to provide quiz functionality and analytics.',
            'nuclear-engagement'
        ),
        'suggested_text' => __(
            'We collect quiz responses and performance data to improve ' .
            'the learning experience. You can request deletion of your ' .
            'data at any time.',
            'nuclear-engagement'
        )
    ];
}

// GDPR data export
public function export_user_data($email_address) {
    $user = get_user_by('email', $email_address);
    if (!$user) {
        return [];
    }
    
    $quiz_results = $this->get_user_quiz_results($user->ID);
    
    $export_items = [];
    foreach ($quiz_results as $result) {
        $export_items[] = [
            'group_id' => 'nuclear_engagement_quiz_results',
            'group_label' => __('Quiz Results', 'nuclear-engagement'),
            'item_id' => "quiz-result-{$result->id}",
            'data' => [
                'quiz_title' => $result->quiz_title,
                'score' => $result->score,
                'date_taken' => $result->date_taken,
                'time_taken' => $result->time_taken
            ]
        ];
    }
    
    return $export_items;
}

// GDPR data deletion
public function erase_user_data($email_address) {
    $user = get_user_by('email', $email_address);
    if (!$user) {
        return false;
    }
    
    // Delete quiz results
    $deleted_results = $this->delete_user_quiz_results($user->ID);
    
    // Delete analytics data
    $deleted_analytics = $this->delete_user_analytics($user->ID);
    
    return [
        'items_removed' => $deleted_results + $deleted_analytics,
        'items_retained' => false,
        'messages' => [__('All Nuclear Engagement data has been removed.', 'nuclear-engagement')]
    ];
}

// Encrypt sensitive configuration data
class EncryptionHelper {
    private function get_encryption_key() {
        $key = get_option('nuclear_engagement_encryption_key');
        if (!$key) {
            $key = wp_generate_password(32, true, true);
            update_option('nuclear_engagement_encryption_key', $key);
        }
        return $key;
    }
    
    public function encrypt($data) {
        $key = $this->get_encryption_key();
        $iv = openssl_random_pseudo_bytes(16);
        $encrypted = openssl_encrypt($data, 'AES-256-CBC', $key, 0, $iv);
        return base64_encode($iv . $encrypted);
    }
    
    public function decrypt($encrypted_data) {
        $key = $this->get_encryption_key();
        $data = base64_decode($encrypted_data);
        $iv = substr($data, 0, 16);
        $encrypted = substr($data, 16);
        return openssl_decrypt($encrypted, 'AES-256-CBC', $key, 0, $iv);
    }
}

// Input validation class
class InputValidator {
    public static function validate_quiz_data($data) {
        $errors = [];
        
        // Title validation
        if (empty($data['title'])) {
            $errors[] = __('Quiz title is required.', 'nuclear-engagement');
        } elseif (strlen($data['title']) > 200) {
            $errors[] = __('Quiz title is too long.', 'nuclear-engagement');
        }
        
        // Content validation
        if (isset($data['content'])) {
            $data['content'] = wp_kses_post($data['content']);
        }
        
        // Questions validation
        if (empty($data['questions']) || !is_array($data['questions'])) {
            $errors[] = __('At least one question is required.', 'nuclear-engagement');
        } else {
            foreach ($data['questions'] as $index => $question) {
                $question_errors = self::validate_question($question, $index);
                $errors = array_merge($errors, $question_errors);
            }
        }
        
        // Settings validation
        if (isset($data['settings'])) {
            $settings_errors = self::validate_quiz_settings($data['settings']);
            $errors = array_merge($errors, $settings_errors);
        }
        
        return [
            'valid' => empty($errors),
            'errors' => $errors,
            'sanitized_data' => $data
        ];
    }
    
    private static function validate_question($question, $index) {
        $errors = [];
        
        // Question text validation
        if (empty($question['question'])) {
            $errors[] = sprintf(__('Question %d: Question text is required.', 'nuclear-engagement'), $index + 1);
        }
        
        // Question type validation
        $valid_types = ['multiple_choice', 'true_false', 'short_answer', 'essay'];
        if (!in_array($question['type'] ?? '', $valid_types)) {
            $errors[] = sprintf(__('Question %d: Invalid question type.', 'nuclear-engagement'), $index + 1);
        }
        
        // Answers validation for multiple choice
        if (($question['type'] ?? '') === 'multiple_choice') {
            if (empty($question['answers']) || count($question['answers']) < 2) {
                $errors[] = sprintf(__('Question %d: At least 2 answers required.', 'nuclear-engagement'), $index + 1);
            }
            
            $correct_answers = array_filter($question['answers'], function($answer) {
                return !empty($answer['correct']);
            });
            
            if (empty($correct_answers)) {
                $errors[] = sprintf(__('Question %d: At least one correct answer required.', 'nuclear-engagement'), $index + 1);
            }
        }
        
        return $errors;
    }
}

// Always use prepared statements
class QuizDatabase {
    public function get_quiz_results($quiz_id, $user_id = null) {
        global $wpdb;
        
        $query = "SELECT * FROM {$wpdb->prefix}nuclear_engagement_results WHERE quiz_id = %d";
        $params = [$quiz_id];
        
        if ($user_id !== null) {
            $query .= " AND user_id = %d";
            $params[] = $user_id;
        }
        
        $query .= " ORDER BY created_at DESC";
        
        return $wpdb->get_results($wpdb->prepare($query, $params));
    }
    
    public function insert_quiz_result($data) {
        global $wpdb;
        
        // Validate and sanitize data
        $sanitized_data = [
            'quiz_id' => absint($data['quiz_id']),
            'user_id' => absint($data['user_id']),
            'score' => floatval($data['score']),
            'time_taken' => absint($data['time_taken']),
            'answers' => wp_json_encode($data['answers']),
            'created_at' => current_time('mysql', true)
        ];
        
        return $wpdb->insert(
            $wpdb->prefix . 'nuclear_engagement_results',
            $sanitized_data,
            ['%d', '%d', '%f', '%d', '%s', '%s']
        );
    }
}

// Output escaping examples
class OutputEscaping {
    public static function render_quiz_title($title) {
        return '<h2>' . esc_html($title) . '</h2>';
    }
    
    public static function render_quiz_description($description) {
        return '<div class="quiz-description">' . wp_kses_post($description) . '</div>';
    }
    
    public static function render_quiz_url($quiz_id) {
        $url = add_query_arg('quiz_id', absint($quiz_id), get_permalink());
        return '<a href="' . esc_url($url) . '">' . __('Take Quiz', 'nuclear-engagement') . '</a>';
    }
    
    public static function render_quiz_data_attribute($data) {
        return 'data-quiz="' . esc_attr(wp_json_encode($data)) . '"';
    }
}

// API authentication and permissions
class APIPermissions {
    public function permission_callback($request) {
        // Check nonce for authenticated requests
        if (is_user_logged_in()) {
            $nonce = $request->get_header('X-WP-Nonce');
            if (!wp_verify_nonce($nonce, 'wp_rest')) {
                return new WP_Error('invalid_nonce', 'Invalid nonce.', ['status' => 403]);
            }
        }
        
        // Check capabilities
        $endpoint = $request->get_route();
        $method = $request->get_method();
        
        $required_cap = $this->get_required_capability($endpoint, $method);
        if (!current_user_can($required_cap)) {
            return new WP_Error('insufficient_permissions', 'Insufficient permissions.', ['status' => 403]);
        }
        
        return true;
    }
    
    private function get_required_capability($endpoint, $method) {
        $capability_map = [
            'GET' => 'read',
            'POST' => 'edit_posts',
            'PUT' => 'edit_posts',
            'PATCH' => 'edit_posts',
            'DELETE' => 'delete_posts'
        ];
        
        // Admin endpoints require higher permissions
        if (strpos($endpoint, '/admin/') !== false) {
            return 'manage_options';
        }
        
        return $capability_map[$method] ?? 'read';
    }
}

// API rate limiting implementation
class RateLimiter {
    private $limits = [
        'default' => ['requests' => 100, 'window' => 3600], // 100 per hour
        'authenticated' => ['requests' => 1000, 'window' => 3600], // 1000 per hour
        'quiz_submit' => ['requests' => 10, 'window' => 3600] // 10 quiz submissions per hour
    ];
    
    public function check_rate_limit($identifier, $type = 'default') {
        $limit_config = $this->limits[$type] ?? $this->limits['default'];
        $key = "rate_limit_{$type}_{$identifier}";
        
        $current_count = get_transient($key) ?: 0;
        
        if ($current_count >= $limit_config['requests']) {
            return [
                'allowed' => false,
                'limit' => $limit_config['requests'],
                'remaining' => 0,
                'reset_time' => time() + $limit_config['window']
            ];
        }
        
        set_transient($key, $current_count + 1, $limit_config['window']);
        
        return [
            'allowed' => true,
            'limit' => $limit_config['requests'],
            'remaining' => $limit_config['requests'] - $current_count - 1,
            'reset_time' => time() + $limit_config['window']
        ];
    }
}

// Secure API responses
class SecureAPIResponse {
    public function prepare_quiz_response($quiz, $context = 'view') {
        $response_data = [];
        
        // Always include safe fields
        $safe_fields = ['id', 'title', 'status', 'date_created'];
        foreach ($safe_fields as $field) {
            if (isset($quiz[$field])) {
                $response_data[$field] = $quiz[$field];
            }
        }
        
        // Context-specific fields
        if ($context === 'edit' && current_user_can('edit_posts')) {
            $response_data['content'] = $quiz['content'];
            $response_data['settings'] = $quiz['settings'];
        }
        
        // Never expose sensitive data
        unset($response_data['internal_notes']);
        unset($response_data['gold_code']);
        
        return $response_data;
    }
}

// Database security implementation
class DatabaseSecurity {
    public function create_tables_with_security() {
        global $wpdb;
        
        $charset_collate = $wpdb->get_charset_collate();
        
        // Quiz results table with proper indexing
        $sql = "CREATE TABLE {$wpdb->prefix}nuclear_engagement_results (
            id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
            quiz_id bigint(20) unsigned NOT NULL,
            user_id bigint(20) unsigned NOT NULL,
            score decimal(5,2) NOT NULL,
            time_taken int unsigned NOT NULL,
            answers longtext NOT NULL,
            user_agent text,
            ip_address varchar(45),
            created_at datetime NOT NULL,
            updated_at datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
            PRIMARY KEY (id),
            KEY quiz_user_idx (quiz_id, user_id),
            KEY created_at_idx (created_at),
            KEY user_id_idx (user_id)
        ) $charset_collate;";
        
        require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
        dbDelta($sql);
        
        // Set proper permissions
        $this->set_table_permissions();
    }
    
    private function set_table_permissions() {
        global $wpdb;
        
        // Ensure tables are only accessible by WordPress user
        $tables = [
            $wpdb->prefix . 'nuclear_engagement_results',
            $wpdb->prefix . 'nuclear_engagement_analytics'
        ];
        
        foreach ($tables as $table) {
            $wpdb->query($wpdb->prepare(
                "GRANT SELECT, INSERT, UPDATE, DELETE ON %s TO %s",
                $table,
                DB_USER
            ));
        }
    }
}

// Anonymize sensitive data for analytics
class DataAnonymizer {
    public function anonymize_ip_address($ip) {
        if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
            // IPv4: Remove last octet
            return preg_replace('/\.\d+$/', '.0', $ip);
        } elseif (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
            // IPv6: Remove last 80 bits
            return preg_replace('/:[^:]+:[^:]+:[^:]+:[^:]+$/', '::', $ip);
        }
        
        return '';
    }
    
    public function hash_user_identifier($user_id) {
        $salt = get_option('nuclear_engagement_hash_salt');
        if (!$salt) {
            $salt = wp_generate_password(32, true, true);
            update_option('nuclear_engagement_hash_salt', $salt);
        }
        
        return hash_hmac('sha256', $user_id, $salt);
    }
}

// Secure file upload handling
class FileUploadSecurity {
    private $allowed_types = ['image/jpeg', 'image/png', 'image/gif'];
    private $max_file_size = 2097152; // 2MB
    
    public function validate_upload($file) {
        $errors = [];
        
        // Check file size
        if ($file['size'] > $this->max_file_size) {
            $errors[] = __('File size exceeds maximum allowed.', 'nuclear-engagement');
        }
        
        // Check file type
        $file_type = wp_check_filetype($file['name']);
        if (!in_array($file_type['type'], $this->allowed_types)) {
            $errors[] = __('File type not allowed.', 'nuclear-engagement');
        }
        
        // Check for malicious content
        if ($this->has_malicious_content($file['tmp_name'])) {
            $errors[] = __('File contains malicious content.', 'nuclear-engagement');
        }
        
        return [
            'valid' => empty($errors),
            'errors' => $errors
        ];
    }
    
    private function has_malicious_content($file_path) {
        $content = file_get_contents($file_path);
        
        // Check for PHP tags in image files
        $malicious_patterns = [
            '/<\?php/',
            '/<\?=/',
            '/<script/',
            '/javascript:/',
            '/vbscript:/',
            '/onload\s*=/',
            '/onerror\s*=/'
        ];
        
        foreach ($malicious_patterns as $pattern) {
            if (preg_match($pattern, $content)) {
                return true;
            }
        }
        
        return false;
    }
}

// Set secure file permissions
class FilePermissions {
    public function set_secure_permissions() {
        $upload_dir = wp_upload_dir();
        $plugin_upload_dir = $upload_dir['basedir'] . '/nuclear-engagement/';
        
        // Create directory with secure permissions
        if (!file_exists($plugin_upload_dir)) {
            wp_mkdir_p($plugin_upload_dir);
            chmod($plugin_upload_dir, 0755);
        }
        
        // Create .htaccess to prevent direct access
        $htaccess_content = "Options -Indexes\n";
        $htaccess_content .= "deny from all\n";
        $htaccess_content .= "<Files ~ \"\\.(jpg|jpeg|png|gif)$\">\n";
        $htaccess_content .= "    allow from all\n";
        $htaccess_content .= "</Files>\n";
        
        file_put_contents($plugin_upload_dir . '.htaccess', $htaccess_content);
    }
}

// Secure configuration settings
class SecureConfiguration {
    private $secure_options = [
        'nuclear_engagement_gold_code',
        'nuclear_engagement_api_key',
        'nuclear_engagement_encryption_key'
    ];
    
    public function update_secure_option($option_name, $value) {
        if (in_array($option_name, $this->secure_options)) {
            // Encrypt sensitive options
            $encrypted_value = $this->encrypt_option($value);
            update_option($option_name, $encrypted_value);
        } else {
            update_option($option_name, $value);
        }
    }
    
    public function get_secure_option($option_name, $default = false) {
        $value = get_option($option_name, $default);
        
        if (in_array($option_name, $this->secure_options) && $value !== $default) {
            return $this->decrypt_option($value);
        }
        
        return $value;
    }
    
    private function encrypt_option($value) {
        if (!defined('NUCLEAR_ENGAGEMENT_SECRET_KEY')) {
            define('NUCLEAR_ENGAGEMENT_SECRET_KEY', wp_generate_password(64, true, true));
        }
        
        $key = NUCLEAR_ENGAGEMENT_SECRET_KEY;
        $iv = openssl_random_pseudo_bytes(16);
        $encrypted = openssl_encrypt($value, 'AES-256-CBC', $key, 0, $iv);
        
        return base64_encode($iv . $encrypted);
    }
    
    private function decrypt_option($encrypted_value) {
        if (!defined('NUCLEAR_ENGAGEMENT_SECRET_KEY')) {
            return false;
        }
        
        $key = NUCLEAR_ENGAGEMENT_SECRET_KEY;
        $data = base64_decode($encrypted_value);
        $iv = substr($data, 0, 16);
        $encrypted = substr($data, 16);
        
        return openssl_decrypt($encrypted, 'AES-256-CBC', $key, 0, $iv);
    }
}

// Environment-based security configuration
class EnvironmentSecurity {
    public function configure_for_environment() {
        if ($this->is_development()) {
            // Development settings
            ini_set('display_errors', 1);
            define('NUCLEAR_ENGAGEMENT_DEBUG', true);
        } elseif ($this->is_staging()) {
            // Staging settings
            ini_set('display_errors', 0);
            define('NUCLEAR_ENGAGEMENT_DEBUG', false);
            define('NUCLEAR_ENGAGEMENT_LOG_LEVEL', 'warning');
        } else {
            // Production settings
            ini_set('display_errors', 0);
            define('NUCLEAR_ENGAGEMENT_DEBUG', false);
            define('NUCLEAR_ENGAGEMENT_LOG_LEVEL', 'error');
            
            // Enhanced security for production
            $this->enable_production_security();
        }
    }
    
    private function enable_production_security() {
        // Disable file editing
        if (!defined('DISALLOW_FILE_EDIT')) {
            define('DISALLOW_FILE_EDIT', true);
        }
        
        // Force SSL for admin
        if (!defined('FORCE_SSL_ADMIN')) {
            define('FORCE_SSL_ADMIN', true);
        }
        
        // Set secure headers
        add_action('send_headers', [$this, 'set_security_headers']);
    }
    
    public function set_security_headers() {
        header('X-Content-Type-Options: nosniff');
        header('X-Frame-Options: DENY');
        header('X-XSS-Protection: 1; mode=block');
        header('Referrer-Policy: strict-origin-when-cross-origin');
        header('Permissions-Policy: geolocation=(), microphone=(), camera=()');
        
        if (is_ssl()) {
            header('Strict-Transport-Security: max-age=31536000; includeSubDomains');
        }
    }
}

// Comprehensive security logging
class SecurityLogger {
    private $log_file;
    
    public function __construct() {
        $upload_dir = wp_upload_dir();
        $this->log_file = $upload_dir['basedir'] . '/nuclear-engagement-security.log';
    }
    
    public function log_security_event($event_type, $details, $severity = 'info') {
        $log_entry = [
            'timestamp' => current_time('c'),
            'event_type' => $event_type,
            'severity' => $severity,
            'user_id' => get_current_user_id(),
            'ip_address' => $this->get_client_ip(),
            'user_agent' => $_SERVER['HTTP_USER_AGENT'] ?? '',
            'details' => $details
        ];
        
        $log_line = json_encode($log_entry) . "\n";
        file_put_contents($this->log_file, $log_line, FILE_APPEND | LOCK_EX);
        
        // Alert on critical events
        if ($severity === 'critical') {
            $this->send_security_alert($log_entry);
        }
    }
    
    public function log_authentication_attempt($success, $username) {
        $this->log_security_event(
            'authentication_attempt',
            [
                'success' => $success,
                'username' => $username,
                'method' => 'gold_code'
            ],
            $success ? 'info' : 'warning'
        );
    }
    
    public function log_permission_violation($action, $resource) {
        $this->log_security_event(
            'permission_violation',
            [
                'action' => $action,
                'resource' => $resource,
                'required_capability' => $this->get_required_capability($action)
            ],
            'warning'
        );
    }
    
    private function send_security_alert($log_entry) {
        $admin_email = get_option('admin_email');
        $subject = sprintf('[Security Alert] %s - %s', get_bloginfo('name'), $log_entry['event_type']);
        
        $message = sprintf(
            "Security Event Detected:\n\n" .
            "Event: %s\n" .
            "Severity: %s\n" .
            "Time: %s\n" .
            "User: %s\n" .
            "IP: %s\n" .
            "Details: %s\n",
            $log_entry['event_type'],
            $log_entry['severity'],
            $log_entry['timestamp'],
            $log_entry['user_id'],
            $log_entry['ip_address'],
            json_encode($log_entry['details'])
        );
        
        wp_mail($admin_email, $subject, $message);
    }
}

// Basic intrusion detection system
class IntrusionDetection {
    private $suspicious_patterns = [
        'sql_injection' => [
            '/union\s+select/i',
            '/drop\s+table/i',
            '/insert\s+into/i',
            '/update\s+set/i'
        ],
        'xss_attempt' => [
            '/<script/i',
            '/javascript:/i',
            '/onload\s*=/i',
            '/onerror\s*=/i'
        ],
        'path_traversal' => [
            '/\.\.\//i',
            '/\.\.\\\\/i',
            '/etc\/passwd/i',
            '/proc\/version/i'
        ]
    ];
    
    public function scan_request() {
        $suspicious_activity = [];
        
        $input_data = array_merge($_GET, $_POST, $_COOKIE);
        
        foreach ($input_data as $key => $value) {
            if (is_string($value)) {
                $detected_threats = $this->detect_threats($value);
                if (!empty($detected_threats)) {
                    $suspicious_activity[] = [
                        'parameter' => $key,
                        'value' => substr($value, 0, 100), // Truncate for logging
                        'threats' => $detected_threats
                    ];
                }
            }
        }
        
        if (!empty($suspicious_activity)) {
            $this->handle_suspicious_activity($suspicious_activity);
        }
        
        return empty($suspicious_activity);
    }
    
    private function detect_threats($input) {
        $threats = [];
        
        foreach ($this->suspicious_patterns as $threat_type => $patterns) {
            foreach ($patterns as $pattern) {
                if (preg_match($pattern, $input)) {
                    $threats[] = $threat_type;
                    break;
                }
            }
        }
        
        return array_unique($threats);
    }
    
    private function handle_suspicious_activity($activities) {
        $logger = new SecurityLogger();
        $logger->log_security_event(
            'intrusion_attempt',
            ['activities' => $activities],
            'critical'
        );
        
        // Temporarily block IP for repeated attempts
        $ip = $this->get_client_ip();
        $this->temporarily_block_ip($ip);
    }
}

// Automated incident response
class IncidentResponse {
    public function handle_security_incident($incident_type, $details) {
        $response_plan = $this->get_response_plan($incident_type);
        
        foreach ($response_plan['actions'] as $action) {
            $this->execute_response_action($action, $details);
        }
        
        // Escalate if necessary
        if ($response_plan['escalate']) {
            $this->escalate_incident($incident_type, $details);
        }
    }
    
    private function get_response_plan($incident_type) {
        $plans = [
            'data_breach' => [
                'actions' => ['log_incident', 'notify_admin', 'secure_system'],
                'escalate' => true
            ],
            'unauthorized_access' => [
                'actions' => ['log_incident', 'block_ip', 'notify_admin'],
                'escalate' => false
            ],
            'malware_detected' => [
                'actions' => ['quarantine_file', 'scan_system', 'notify_admin'],
                'escalate' => true
            ]
        ];
        
        return $plans[$incident_type] ?? $plans['unauthorized_access'];
    }
    
    private function execute_response_action($action, $details) {
        switch ($action) {
            case 'log_incident':
                $this->log_incident($details);
                break;
            case 'notify_admin':
                $this->notify_administrators($details);
                break;
            case 'block_ip':
                $this->block_suspicious_ip($details);
                break;
            case 'secure_system':
                $this->enable_lockdown_mode();
                break;
        }
    }
    
    private function enable_lockdown_mode() {
        // Temporarily disable plugin functionality
        update_option('nuclear_engagement_lockdown', true);
        
        // Log all access attempts
        add_action('init', function() {
            error_log('Nuclear Engagement: Lockdown mode - Access attempt from ' . $_SERVER['REMOTE_ADDR']);
        });
    }
}