Display Estimated Delivery Date

/**
 * Snippet Name:     Display Estimated Delivery Date
 * Snippet Author:   coding-bunny.com
 * Description:      Displays an estimated delivery date range on the WooCommerce product page based on the day of order.
 * Version:          1.1.0
 */
 
if ( ! defined( 'ABSPATH' ) ) {
    return;
}

add_action( 'woocommerce_after_add_to_cart_button', 'cbedd_display_estimated_delivery' );

function cbedd_display_estimated_delivery() {
    $old_tz = date_default_timezone_get();
    date_default_timezone_set( 'Europe/Rome' );

    $day_of_week = date( 'N' );

    switch ( $day_of_week ) {
        case 1: // Monday
            $delivery_day = date_i18n( 'l j F', strtotime( '+2 days' ) );
            break;
        case 2: // Tuesday
            $delivery_day = date_i18n( 'l j F', strtotime( '+2 days' ) );
            break;
        case 3: // Wednesday
            $delivery_day = date_i18n( 'l j F', strtotime( '+2 days' ) );
            break;
        case 4: // Thursday
            $delivery_day = date_i18n( 'l j F', strtotime( '+4 days' ) );
            break;
        case 5: // Friday
            $delivery_day = date_i18n( 'l j F', strtotime( '+4 days' ) );
            break;
        case 6: // Saturday
            $delivery_day = date_i18n( 'l j F', strtotime( '+3 days' ) );
            break;
        case 7: // Sunday
            $delivery_day = date_i18n( 'l j F', strtotime( '+2 days' ) );
            break;
        default:
            $delivery_day = date_i18n( 'l j F', strtotime( '+3 days' ) );
    }

    date_default_timezone_set( $old_tz );

    $delivery_day = strtolower( $delivery_day );

    $dashicon = '<span class="cbedd-icon dashicons dashicons-calendar-alt" style="font-size:22px;"></span>';

    $output = sprintf(
        '<div class="cbedd-estimate-delivery" style="padding:16px; border:1px solid #e0e0e0; border-radius:6px; background:#f9f9f9; display:flex; align-items:center; flex-wrap:wrap; gap:12px; margin-top:16px;">
            %1$s
            <span>Estimated delivery by</span>
            <span style="font-weight:700;">%2$s</span>
        </div>',
        $dashicon,
        esc_html( $delivery_day )
    );
    echo wp_kses(
        $output,
        array(
            'div'    => array( 'class' => true, 'style' => true ),
            'span'   => array( 'class' => true, 'style' => true, 'aria-hidden' => true ),
        )
    );
}

add_action( 'wp_enqueue_scripts', function () {
    wp_enqueue_style( 'dashicons' );
});