upskill-event-manager/templates/page-create-event.php

<?php
/**
 * Template Name: Create Event
 * Description: Template for creating new events with REST API (100% field control)
 */

// Define constant to indicate we are in a page template
define('HVAC_IN_PAGE_TEMPLATE', true);

get_header();
?>

<style>
.hvac-create-event-wrapper {
    max-width: 1200px; 
    margin: 0 auto;
    padding: 20px;
}

.hvac-create-event-wrapper h1 {
    color: #1a1a1a;
    font-size: 28px;
    margin-bottom: 20px;
}

.hvac-form-notice {
    background: #f0f7ff;
    border: 1px solid #0073aa;
    border-radius: 4px;
    padding: 12px;
    margin-bottom: 20px;
}

.hvac-form-notice p {
    margin: 0;
    color: #0073aa;
}
</style>

<div class="hvac-create-event-wrapper">
    <?php
    // Display trainer navigation menu
    if (class_exists('HVAC_Menu_System')) {
        HVAC_Menu_System::instance()->render_trainer_menu();
    }
    ?>
    
    <h1>Create New Event</h1>
    
    <div class="hvac-form-notice">
        <p>Create your event with full control over all fields including excerpt, categories, featured images, and tags.</p>
    </div>
    
    <div class="hvac-page-content">
        <?php
        // Handle form submission
        if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['hvac_event_form_nonce'])) {
            if (wp_verify_nonce($_POST['hvac_event_form_nonce'], 'hvac_event_form')) {
                try {
                    // Create event form builder instance with template support
                    $event_form = new HVAC_Event_Form_Builder('hvac_event_form', true);
                    $event_form->create_event_form();

                    // Validate submitted data
                    $form_errors = $event_form->validate($_POST);

                    if (empty($form_errors)) {
                        // Sanitize data
                        $sanitized_data = $event_form->sanitize($_POST);

                        // Create event using native WordPress
                        $post_handler = HVAC_Event_Post_Handler::instance();
                        $event_id = $post_handler->create_event($sanitized_data);

                        if (!is_wp_error($event_id)) {
                            $success_message = "Event created successfully! Event ID: {$event_id}";
                            $form_submitted = true;
                        } else {
                            $form_errors['general'] = 'Event creation failed: ' . $event_id->get_error_message();
                        }
                    }
                } catch (Exception $e) {
                    $form_errors['general'] = 'Form error: ' . $e->getMessage();
                }
            } else {
                $form_errors['nonce'] = 'Security check failed. Please try again.';
            }
        }

        // Display success message
        if (isset($success_message)) {
            echo '<div class="hvac-form-notice" style="background: #d4edda; border-color: #c3e6cb; color: #155724;">';
            echo '<p>' . esc_html($success_message) . '</p>';
            echo '</div>';
        }

        // Display errors
        if (isset($form_errors['general'])) {
            echo '<div style="background: #f8d7da; border: 1px solid #f5c6cb; padding: 12px; border-radius: 4px; margin-bottom: 20px;">';
            echo esc_html($form_errors['general']);
            echo '</div>';
        }

        // Create and display the event form with template support
        try {
            $event_form = new HVAC_Event_Form_Builder('hvac_event_form', true);
            $event_form->create_event_form();

            // Set any existing errors
            if (!empty($form_errors)) {
                $event_form->set_errors($form_errors);
            }

            // Set form data if submitted (for re-population on errors)
            if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                $event_form->set_data($_POST);
            }

            echo $event_form->render();

        } catch (Exception $e) {
            echo '<div style="background: #f8d7da; border: 1px solid #f5c6cb; padding: 12px; border-radius: 4px;">';
            echo 'Form Builder Error: ' . esc_html($e->getMessage());
            echo '</div>';
        }
        ?>
    </div>
</div>


<?php
get_footer();
?>