<?php
/**
 * Plugin Activation
 *
 * @package WP_Debug
 * @since 1.0.0
 */

// Exit if accessed directly
if (!defined('ABSPATH')) {
    exit;
}

/**
 * WP_Debug_Activation class
 */
class WP_Debug_Activation {

    /**
     * Run activation tasks
     */
    public static function activate() {
        // Set default options
        self::set_default_options();

        // Create logs directory
        self::create_logs_directory();

        // Create database tables if needed
        self::create_tables();

        // Set activation timestamp
        update_option('wp_debug_activated_at', time());

        // Flush rewrite rules
        flush_rewrite_rules();
    }

    /**
     * Set default plugin options
     */
    private static function set_default_options() {
        // Main toggle
        add_option('wp_debug_enabled', true);

        // Module toggles (all enabled by default)
        add_option('wp_debug_module_logger', true);
        add_option('wp_debug_module_hook_monitor', true);
        add_option('wp_debug_module_template_tracer', true);
        add_option('wp_debug_module_asset_tracker', true);
        add_option('wp_debug_module_profiler', true);
        add_option('wp_debug_module_query_analyzer', true);
        add_option('wp_debug_module_frontend_panel', true);
        add_option('wp_debug_module_cli_commands', true);

        // Logger settings
        add_option('wp_debug_log_level', 'INFO'); // INFO, WARNING, ERROR, DEBUG
        add_option('wp_debug_log_retention_days', 7); // Keep logs for 7 days
        add_option('wp_debug_log_to_file', true);
        add_option('wp_debug_log_to_db', true);

        // Performance settings
        add_option('wp_debug_profiler_enabled', true);
        add_option('wp_debug_profiler_threshold', 1000); // Log functions taking >1000ms

        // Frontend panel settings
        add_option('wp_debug_panel_enabled', true);
        add_option('wp_debug_panel_position', 'bottom-right'); // bottom-right, bottom-left, top-right, top-left

        // Query analyzer settings
        add_option('wp_debug_query_threshold', 100); // Log queries taking >100ms
        add_option('wp_debug_detect_n_plus_one', true);
    }

    /**
     * Create logs directory
     */
    private static function create_logs_directory() {
        $logs_dir = WP_CONTENT_DIR . '/logs/wp-debug';

        if (!file_exists($logs_dir)) {
            wp_mkdir_p($logs_dir);

            // Create .htaccess to protect logs
            $htaccess_file = $logs_dir . '/.htaccess';
            $htaccess_content = "Order deny,allow\nDeny from all";
            file_put_contents($htaccess_file, $htaccess_content);

            // Create index.php to prevent directory listing
            $index_file = $logs_dir . '/index.php';
            $index_content = "<?php\n// Silence is golden.";
            file_put_contents($index_file, $index_content);
        }

        // Set proper permissions
        if (file_exists($logs_dir)) {
            chmod($logs_dir, 0755);
        }
    }

    /**
     * Create database tables
     */
    private static function create_tables() {
        global $wpdb;

        $charset_collate = $wpdb->get_charset_collate();

        // Logs table
        $table_logs = $wpdb->prefix . 'wp_debug_logs';
        $sql_logs = "CREATE TABLE IF NOT EXISTS $table_logs (
            id bigint(20) NOT NULL AUTO_INCREMENT,
            timestamp datetime DEFAULT CURRENT_TIMESTAMP NOT NULL,
            level varchar(20) DEFAULT 'INFO' NOT NULL,
            message text NOT NULL,
            context text,
            user_id bigint(20),
            url varchar(255),
            ip_address varchar(45),
            PRIMARY KEY (id),
            KEY level (level),
            KEY timestamp (timestamp),
            KEY user_id (user_id)
        ) $charset_collate;";

        // Hooks table
        $table_hooks = $wpdb->prefix . 'wp_debug_hooks';
        $sql_hooks = "CREATE TABLE IF NOT EXISTS $table_hooks (
            id bigint(20) NOT NULL AUTO_INCREMENT,
            timestamp datetime DEFAULT CURRENT_TIMESTAMP NOT NULL,
            hook_name varchar(255) NOT NULL,
            hook_type varchar(20) NOT NULL,
            execution_time float,
            args_count int,
            PRIMARY KEY (id),
            KEY hook_name (hook_name),
            KEY timestamp (timestamp),
            KEY hook_type (hook_type)
        ) $charset_collate;";

        require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
        dbDelta($sql_logs);
        dbDelta($sql_hooks);
    }
}