Προσθήκη προσαρμοσμένου dropdown κατάστασης παραγγελίας στο WooCommerce Admin

// Add custom column to orders list
add_filter('manage_edit-shop_order_columns', 'custom_shop_order_column', 20);
function custom_shop_order_column($columns) {
    $new_columns = array();

    foreach ($columns as $key => $column) {
        $new_columns[$key] = $column;
        if ('order_status' === $key) {
            $new_columns['order_dispatched'] = __('Order Status', 'woocommerce');
        }
    }
    return $new_columns;
}

// Display custom column content
add_action('manage_shop_order_posts_custom_column', 'custom_shop_order_column_content', 20, 2);
function custom_shop_order_column_content($column, $post_id) {
    if ('order_dispatched' === $column) {
        $dispatched = get_post_meta($post_id, '_order_dispatched', true);
        echo $dispatched === 'yes' ? __('Απεσταλμένη', 'woocommerce') : __('Μη απεσταλμένη', 'woocommerce');
    }
}

// Add the dropdown to the order edit page
add_action('woocommerce_admin_order_data_after_order_details', 'custom_order_dispatched_dropdown');
function custom_order_dispatched_dropdown($order) {
    $dispatched = get_post_meta($order->get_id(), '_order_dispatched', true);
    ?>
    <p class="form-field form-field-wide">
        <label for="order_dispatched"><?php _e('Order Status', 'woocommerce'); ?></label>
        <select id="order_dispatched" name="order_dispatched">
            <option value="no" <?php selected($dispatched, 'no'); ?>><?php _e('Μη απεσταλμένη', 'woocommerce'); ?></option>
            <option value="yes" <?php selected($dispatched, 'yes'); ?>><?php _e('Απεσταλμένη', 'woocommerce'); ?></option>
        </select>
    </p>
    <?php
}

// Save the dropdown value
add_action('save_post_shop_order', 'save_order_dispatched_dropdown');
function save_order_dispatched_dropdown($post_id) {
    $order = wc_get_order($post_id);
    $dispatched = isset($_POST['order_dispatched']) ? sanitize_text_field($_POST['order_dispatched']) : 'no';
    $order->update_meta_data('_order_dispatched', $dispatched);
    $order->save();
}

// Modify order status display
add_filter('woocommerce_admin_order_actions', 'custom_order_status_display', 10, 2);
function custom_order_status_display($actions, $order) {
    $dispatched = get_post_meta($order->get_id(), '_order_dispatched', true);

    if ($dispatched === 'yes') {
        $actions['dispatched'] = array(
            'url'       => '#',
            'name'      => __('Απεσταλμένη', 'woocommerce'),
            'action'    => 'dispatched', 
        );
    }

    return $actions;
}

// Enqueue and add inline script
function enqueue_admin_order_custom_script() {
    wp_enqueue_script('jquery');
    $inline_script = "
    jQuery(document).ready(function($) {
        $('.order-dispatched-checkbox').on('change', function() {
            var orderId = $(this).data('order-id');
            var dispatched = $(this).is(':checked') ? 'yes' : 'no';

            $.ajax({
                url: '".admin_url('admin-ajax.php')."',
                method: 'POST',
                data: {
                    action: 'save_order_dispatched_status',
                    order_id: orderId,
                    dispatched: dispatched
                },
                success: function(response) {
                    console.log('Order status updated');
                }
            });
        });
    });
    ";
    wp_add_inline_script('jquery', $inline_script);
}
add_action('admin_enqueue_scripts', 'enqueue_admin_order_custom_script');

// Handle AJAX request
add_action('wp_ajax_save_order_dispatched_status', 'save_order_dispatched_status');
function save_order_dispatched_status() {
    if (isset($_POST['order_id']) && isset($_POST['dispatched'])) {
        $order_id = intval($_POST['order_id']);
        $dispatched = sanitize_text_field($_POST['dispatched']);

        update_post_meta($order_id, '_order_dispatched', $dispatched);

        wp_send_json_success();
    }

    wp_send_json_error();
}