woo orders page Whatsapp DM from mac app

// Modify the columns and ensure WhatsApp column appears last

function add_whatsapp_column($columns) {

    // Remove WhatsApp column if it already exists

    if (isset($columns['whatsapp'])) {

        unset($columns['whatsapp']);

    }

    // Add WhatsApp column after Courier Address column

    if (isset($columns['courier_address'])) {

        $new_columns = [];

        foreach ($columns as $key => $value) {

            $new_columns[$key] = $value;

        }

        $new_columns['whatsapp'] = 'WhatsApp';

        return $new_columns;

    }

    // If Courier Address column is not found, simply add WhatsApp at the end

    $columns['whatsapp'] = 'WhatsApp';

    return $columns;

}

add_filter('manage_edit-shop_order_columns', 'add_whatsapp_column', 20);

// Display the WhatsApp button in the new column

function display_whatsapp_button($column) {

    global $post, $global_shipping_carriers;

    if ($column == 'whatsapp') {

        // Get the customer's phone number from the order

        $order = wc_get_order($post->ID);

        $phone_number = $order->get_billing_phone();

        $user_id = $order->get_customer_id();

        $first_name = $user_id ? get_user_meta($user_id, 'first_name', true) : '';

        // Check if the phone number is valid

        if (!empty($phone_number)) {

            // Clean up the phone number and pick only the last 10 digits

            $phone_number = substr(preg_replace('/[^0-9]/', '', $phone_number), -10);

            $whatsapp_base_link = "whatsapp://send?phone=91{$phone_number}";

            // Get the order status

            $order_status = $order->get_status();

            $order_id = $order->get_order_number();

            $tracking_number = get_post_meta($post->ID, '_tracking_number', true);

            $shipping_carrier = get_post_meta($post->ID, '_shipping_carrier', true);

            $tracking_link = isset($shipping_carrier) && isset($global_shipping_carriers[$shipping_carrier]['tracking_url']) ? $global_shipping_carriers[$shipping_carrier]['tracking_url'] : '';

            switch ($order_status) {

                case 'processing':

                    $message = "வணக்கம் {$first_name},%0A

                    இளவனம் இணையதளத்தில் நீங்கள் செய்த ஆர்டர் உறுதி செய்யப்பட்டது. %0A

                    *ORDER ID* : {$order_id}";

                    break;

                case 'misha-packed':

                    $message = "Vanakkam {$first_name},%0A

                    Your order has been packed.%0A

                    Thank you for shopping with us!%0A%0A

                    *ORDER ID* : {$order_id}%0A

                    *Tracking Number* : {$tracking_number}%0A

                    *Tracking Link* : {$tracking_link}";

                    break;

                case 'misha-shipping':

                    $message = 'Your order is shipping. Please contact us for further details.';

                    break;

                default:

                    $message = 'Your order status: ' . $order_status;

                    break;

            }

            // Construct the WhatsApp link with the message parameter

            $whatsapp_link = $whatsapp_base_link . '&text=' . $message;

            // Output the WhatsApp button

            echo '<a aria-label="Chat on WhatsApp" href="' . $whatsapp_link . '" class="button button-primary" target="_blank" rel="noopener">WhatsApp</a>';

        } else {

            echo 'Phone number not available.';

        }

    }

}

add_action('manage_shop_order_posts_custom_column', 'display_whatsapp_button');

// Make WhatsApp column sortable

function make_whatsapp_column_sortable($columns) {

    $columns['whatsapp'] = 'whatsapp';

    return $columns;

}

add_filter('manage_edit-shop_order_sortable_columns', 'make_whatsapp_column_sortable');

// Apply CSS to set minimum column width for WhatsApp column

function set_whatsapp_column_width() {

    echo '<style>

        .column-whatsapp { width: 80px !important; min-width: 80px !important; text-align: center; }

    </style>';

}

add_action('admin_head', 'set_whatsapp_column_width');