Show Estimated Delivery for Products in select Taxonomy in WooCommerce

I am currently using the snippet below to show estimated delivery on my single product pages. I need help making a few changes to the code;

1. I currently have a custom taxonomy (Available now) and would like to modify the code to show for only products with that taxonomy

2. Change the output notice to show eg. (Ready for delivery between 4 Nov & 7 Nov when you order within [hours left before end of day].)

3. Hide the notice when when the item is out of stock

---

add_action( 'woocommerce_before_add_to_cart_form', 'delivery_estimate' );
    
function delivery_estimate() {
   date_default_timezone_set( 'Europe/Tallinn' );  
    
   // if FRI/SAT/SUN delivery will be MON
   if ( date( 'N' ) >= 5 ) {
      $del_day = date( "l jS F", strtotime( "next tuesday" ) );
      $order_by = "Monday";
   } 
    
   // if MON/THU after 4PM delivery will be day after tomorrow
   elseif ( date( 'H' ) >= 16 ) {
      $del_day = date( "l jS F", strtotime( "tomorrow + 1 day" ) );
      $order_by = "tomorrow";
   } 
    
   // if MON/THU before 4PM delivery will be TOMORROW
   else {
      $del_day = date( "2 jS F", strtotime( "tomorrow" ) );
      $order_by = "today";
   }
 
   $html = "<br><div class='woocommerce-message' style='clear:both'>Order by 4PM {$order_by} for delivery on {$del_day}</div>";
    
   echo $html;
}

Answer

add_action( 'woocommerce_before_add_to_cart_form', 'delivery_estimate' );

function delivery_estimate() {

   global $product;

   if ( 'product' == $product->post_type ) {

       $terms = wp_get_post_terms( $product->id, 'shipment-status' );

       if ( $terms instanceof WP_Error ) {
           // Log error here or whatever you need to do

       } elseif ( ! empty( $terms ) ) {

           $term = $terms[ 0 ]; // assuming it is single-valued

           if ( 'available-in-ghana' == $term->slug ) {

               date_default_timezone_set( 'Africa/Accra' );  

               // if FRI/SAT/SUN delivery will be between +1 & +4 days
               if ( date( 'N' ) >= 5 ) {
                  $del_day = date( "j M", strtotime( "today + 1 day" ) );
                  $del_day2 = date( "j M", strtotime( "today + 4 day" ) );
                  $hour = gmdate("g", strtotime("tomorrow") - time()) . hrs;
                  $minutes = gmdate("i", strtotime("tomorrow") - time()) . mins;
                
                } 

               // if MON/THU after 4PM delivery will be day after tomorrow
               elseif ( date( 'H' ) >= 16 ) {
                  $del_day = date( "j M", strtotime( "tomorrow + 1 day" ) );
                  $hour = gmdate("g", strtotime("tomorrow") - time()) . hrs;
                  $minutes = gmdate("i", strtotime("tomorrow") - time()) . mins;
               } 

               // if MON/THU before 4PM delivery will be TOMORROW
               else {
                  $del_day = date( "j M", strtotime( "tomorrow" ) );
                  $hour = gmdate("g", strtotime("tomorrow") - time()) . hrs;
                  $minutes = gmdate("i", strtotime("tomorrow") - time()) . mins;
               }

               $html = "<br><div class='woocommerce-message' style='clear:both'>Order within the next $hour $minutes for delivery between {$del_day} & {$del_day2}</div>";

               echo $html;

        } // endif

    } // endif

}}

OUTPUT