<?php
/**
 * Autoloader - Loads all plugin modules
 *
 * @package WP_Debug
 * @since 1.0.0
 */

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

/**
 * WP_Debug_Autoloader class
 */
class WP_Debug_Autoloader {

    /**
     * Modules to load
     *
     * @var array
     */
    private static $modules = array(
        'logger' => array(
            'file' => 'logger.php',
            'class' => 'WP_Debug_Logger',
            'enabled' => true,
        ),
        'hook_monitor' => array(
            'file' => 'hook-monitor.php',
            'class' => 'WP_Debug_Hook_Monitor',
            'enabled' => true,
        ),
        'template_tracer' => array(
            'file' => 'template-tracer.php',
            'class' => 'WP_Debug_Template_Tracer',
            'enabled' => true,
        ),
        'asset_tracker' => array(
            'file' => 'asset-tracker.php',
            'class' => 'WP_Debug_Asset_Tracker',
            'enabled' => true,
        ),
        'profiler' => array(
            'file' => 'profiler.php',
            'class' => 'WP_Debug_Profiler',
            'enabled' => true,
        ),
        'query_analyzer' => array(
            'file' => 'query-analyzer.php',
            'class' => 'WP_Debug_Query_Analyzer',
            'enabled' => true,
        ),
        'frontend_panel' => array(
            'file' => 'frontend-panel.php',
            'class' => 'WP_Debug_Frontend_Panel',
            'enabled' => true,
        ),
        'cli_commands' => array(
            'file' => 'cli-commands.php',
            'class' => 'WP_Debug_CLI_Commands',
            'enabled' => true,
        ),
    );

    /**
     * Initialize autoloader
     */
    public static function init() {
        // Check if debug is enabled globally
        $debug_enabled = get_option('wp_debug_enabled', true);

        if (!$debug_enabled) {
            return;
        }

        // Load each module
        foreach (self::$modules as $module_name => $module_data) {
            self::load_module($module_name, $module_data);
        }
    }

    /**
     * Load a single module
     *
     * @param string $module_name Module name
     * @param array $module_data Module data
     */
    private static function load_module($module_name, $module_data) {
        // Check if module is enabled
        $module_enabled = get_option('wp_debug_module_' . $module_name, $module_data['enabled']);

        if (!$module_enabled) {
            return;
        }

        // Build file path
        $file_path = WP_DEBUG_PLUGIN_DIR . 'inc/' . $module_data['file'];

        // Check if file exists
        if (!file_exists($file_path)) {
            if (WP_DEBUG) {
                error_log(sprintf('WP Debug: Module file not found: %s', $file_path));
            }
            return;
        }

        // Load the file
        require_once $file_path;

        // Initialize the class if it has an init method
        if (class_exists($module_data['class']) && method_exists($module_data['class'], 'init')) {
            call_user_func(array($module_data['class'], 'init'));
        }
    }

    /**
     * Get list of available modules
     *
     * @return array List of modules
     */
    public static function get_modules() {
        return self::$modules;
    }

    /**
     * Enable a module
     *
     * @param string $module_name Module name
     * @return bool True on success
     */
    public static function enable_module($module_name) {
        if (!isset(self::$modules[$module_name])) {
            return false;
        }

        return update_option('wp_debug_module_' . $module_name, true);
    }

    /**
     * Disable a module
     *
     * @param string $module_name Module name
     * @return bool True on success
     */
    public static function disable_module($module_name) {
        if (!isset(self::$modules[$module_name])) {
            return false;
        }

        return update_option('wp_debug_module_' . $module_name, false);
    }
}