upskill-event-manager/includes/class-hvac-jquery-compatibility.php

<?php
/**
 * HVAC jQuery Compatibility Manager
 * 
 * Ensures proper jQuery loading and compatibility across all HVAC JavaScript files
 * to resolve "$field.removeClass is not a function" errors.
 * 
 * @since 1.0.0
 */

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

class HVAC_jQuery_Compatibility {
    
    /**
     * Initialize the jQuery compatibility system
     */
    public static function init() {
        add_action('wp_enqueue_scripts', [__CLASS__, 'enqueue_compatibility_scripts'], 5);
        add_action('admin_enqueue_scripts', [__CLASS__, 'enqueue_compatibility_scripts'], 5);
        
        // High priority to load before other HVAC scripts
        add_action('wp_head', [__CLASS__, 'output_jquery_compatibility_check'], 1);
        
        // Ensure jQuery is loaded in no-conflict mode
        add_action('wp_enqueue_scripts', [__CLASS__, 'ensure_jquery_no_conflict'], 1);
    }
    
    /**
     * Enqueue the jQuery compatibility fix script
     */
    public static function enqueue_compatibility_scripts() {
        // Only load on pages that use HVAC functionality
        if (self::should_load_compatibility_scripts()) {
            
            // Ensure jQuery is loaded
            wp_enqueue_script('jquery');
            
            // Load our compatibility fix with high priority
            wp_enqueue_script(
                'hvac-jquery-compatibility-fix',
                HVAC_PLUGIN_URL . 'assets/js/hvac-jquery-compatibility-fix.js',
                ['jquery'],
                HVAC_VERSION,
                false // Load in head for early initialization
            );
            
            // Add inline script to debug jQuery availability
            wp_add_inline_script('hvac-jquery-compatibility-fix', self::get_jquery_debug_script(), 'before');
        }
    }
    
    /**
     * Ensure jQuery runs in no-conflict mode
     */
    public static function ensure_jquery_no_conflict() {
        if (self::should_load_compatibility_scripts()) {
            wp_add_inline_script('jquery', 'jQuery.noConflict();', 'after');
        }
    }
    
    /**
     * Output jQuery compatibility check in head
     */
    public static function output_jquery_compatibility_check() {
        if (self::should_load_compatibility_scripts()) {
            ?>
            <script type="text/javascript">
            // Early jQuery compatibility check
            console.log('🔍 HVAC Early jQuery Check...');
            if (typeof window.jQuery !== 'undefined') {
                console.log('✅ jQuery ' + window.jQuery.fn.jquery + ' loaded');
                if (typeof window.$ === 'undefined') {
                    console.log('⚠️ Global $ not available - will be fixed by compatibility script');
                } else {
                    console.log('✅ Global $ available');
                }
            } else {
                console.warn('❌ jQuery not loaded yet');
            }
            </script>
            <?php
        }
    }
    
    /**
     * Get jQuery debug script
     */
    private static function get_jquery_debug_script() {
        return '
        // HVAC jQuery Debug Information
        console.log("🔧 HVAC jQuery Compatibility Debug:");
        console.log("- jQuery version:", typeof jQuery !== "undefined" ? jQuery.fn.jquery : "not loaded");
        console.log("- Global $ available:", typeof $ !== "undefined");
        console.log("- window.jQuery available:", typeof window.jQuery !== "undefined");
        console.log("- Current page:", window.location.pathname);
        ';
    }
    
    /**
     * Determine if compatibility scripts should be loaded
     */
    private static function should_load_compatibility_scripts() {
        global $post;
        
        // Load on all HVAC plugin pages
        if (is_admin()) {
            return true;
        }
        
        // Load on trainer pages
        if (self::is_trainer_page()) {
            return true;
        }
        
        // Load on TEC Community Events pages
        if (self::is_tec_community_page()) {
            return true;
        }
        
        // Load on registration pages
        if (self::is_registration_page()) {
            return true;
        }
        
        // Load on any page with HVAC shortcodes
        if ($post && has_shortcode($post->post_content, 'hvac_trainer_dashboard')) {
            return true;
        }
        
        return false;
    }
    
    /**
     * Check if current page is a trainer page
     */
    private static function is_trainer_page() {
        $current_url = $_SERVER['REQUEST_URI'] ?? '';
        
        $trainer_patterns = [
            '/trainer/',
            '/master-trainer/',
            '/training-login/',
            '/trainer-registration/'
        ];
        
        foreach ($trainer_patterns as $pattern) {
            if (strpos($current_url, $pattern) !== false) {
                return true;
            }
        }
        
        return false;
    }
    
    /**
     * Check if current page is a TEC Community Events page
     */
    private static function is_tec_community_page() {
        $current_url = $_SERVER['REQUEST_URI'] ?? '';
        
        $tec_patterns = [
            '/events/community/',
            '/events/network/',
            '/community/events/',
            'event_id=',
            'tribe-community-events'
        ];
        
        foreach ($tec_patterns as $pattern) {
            if (strpos($current_url, $pattern) !== false) {
                return true;
            }
        }
        
        // Check if TEC Community Events is active on this page
        if (function_exists('tribe_is_community_edit_event_page') && tribe_is_community_edit_event_page()) {
            return true;
        }
        
        return false;
    }
    
    /**
     * Check if current page is a registration page
     */
    private static function is_registration_page() {
        global $post;
        
        if ($post) {
            // Check if page uses registration template
            $template = get_page_template_slug($post->ID);
            if (strpos($template, 'registration') !== false) {
                return true;
            }
            
            // Check page content for registration forms
            if (has_shortcode($post->post_content, 'hvac_registration_form')) {
                return true;
            }
        }
        
        return false;
    }
    
    /**
     * Get compatibility status for debugging
     */
    public static function get_compatibility_status() {
        return [
            'jquery_loaded' => wp_script_is('jquery', 'done'),
            'compatibility_fix_loaded' => wp_script_is('hvac-jquery-compatibility-fix', 'done'),
            'should_load' => self::should_load_compatibility_scripts(),
            'is_trainer_page' => self::is_trainer_page(),
            'is_tec_page' => self::is_tec_community_page(),
            'is_registration_page' => self::is_registration_page(),
            'current_url' => $_SERVER['REQUEST_URI'] ?? ''
        ];
    }
}

// Initialize the compatibility system
HVAC_jQuery_Compatibility::init();