Woocommerce get top level category - [resolved]

function get_top_level_product_cat(){
    global $post;
    $prod_terms = get_the_terms( $post->ID, 'product_cat' );
    foreach ($prod_terms as $prod_term) {

        // gets product cat id
        $product_cat_id = $prod_term->term_id;

        // gets an array of all parent category levels
        $product_parent_categories_all_hierachy = get_ancestors( $product_cat_id, 'product_cat' ); 
       
        // This cuts the array and extracts the last set in the array
        $last_parent_cat = array_slice($product_parent_categories_all_hierachy, -1, 1, true);
        foreach($last_parent_cat as $last_parent_cat_value){
            return $product_category = get_product_category_by_id( $last_parent_cat_value );           
        }
    }
}

function get_product_category_by_id( $category_id ) {
    $term = get_term_by( 'id', $category_id, 'product_cat', 'ARRAY_A' );
    return $term['name'];
}