Snippet to add body class on WooCommerce single product page

product-body-class.php

<?php

add_filter( 'body_class', 'add_product_type_class' );
function add_product_type_class( $classes ) {	
	if ( is_product() ){
		global $product;
		$productID = $product->get_id();

		// BASED ON PRODUCT TYPE		
		$productType = get_the_terms( $productID, 'product_type')[0]->slug;
		$classes[] = 'product-type-' . $productType;

		// BASED ON PRODUCT CATEGORY
		if ( has_term( 'term', 'product_cat', $productID ) ) { // term can be category name, id, slug or an array of each to check for
			$classes[] = 'product-category-term';  
		}
		
		// BASED ON PRODUCT TAG
		if ( has_term( 'term', 'product_tag', $productID ) ) { // term can be tag name, id, slug or an array of each to check for
			$classes[] = 'product-category-term';  
		}
	}

	return $classes;
}

?>