Compatibilidade entre o plugin Simulador de frete (Fernando Acosta) e Woocommerce Chained Products

compatibilidade-simulador-frete.php

<?php
/**
 * If virtual product has chained, it needs shipping.
 * 
 * @param bool $is_virtual Default value.
 * @param WC_Product $product The product object.
 */
add_filter('woocommerce_is_virtual', function( $is_virtual, $product ){
	$chained_products = get_post_meta( $product->get_id(), '_chained_product_detail', true );
	$has_chained   = ( is_array( $chained_products ) ) ? true : false;

	if( is_product() && $has_chained ){
		//If has chained, the product needs shipping
		return false;
	}

	return $is_virtual;
}, 10, 2);

/**
 * Add chained products to the package
 * 
 * @param array $package The cart package.
 * @param WC_Product The product object.
 */
add_filter('wc_shipping_simulator_package', function( $package, $product ){
	//parâmetro $product será depreciado
	//$product  = isset( $package['contents'][0]['data'] ) ? $package['contents'][0]['data'] : null;

	$chained_products = get_post_meta( $product->get_id(), '_chained_product_detail', true );
	$chained_product_ids = ( is_array( $chained_products ) ) ? array_keys( $chained_products ) : null;
	$quantity = $package['contents'][0]['quantity'];

	if( $chained_product_ids ){
		$total_price = 0;
		$contents    = array();

		foreach ( $chained_product_ids as $product_id ) {
			$product      = wc_get_product( $product_id );
			$chained_item_qty = $chained_products[ $product_id ]['unit'] * $quantity;
	  
			// produto invalido
			if ( ! $product ) {
				continue;
			}
	  
			$product_id   = $product->is_type( 'variation' ) ? $product->get_parent_id() : $product->get_id();
			$variation_id = $product->is_type( 'variation' ) ? $product->get_id() : 0;
			$variation    = $product->is_type( 'variation' ) ? $product->get_attributes() : array();
	  
			$line_total   = ( array() !== $product ) ? $product->get_price() * $quantity : $product->get_price() * $quantity;

			$total_price += $line_total;
			
			$contents[$variation_id] = array(
			  'product_id'        => $product_id,
			  'variation_id'      => $variation_id,
			  'variation'         => $variation,
			  'line_total'        => $line_total,
			  'line_tax'          => 0,
			  'line_subtotal'     => $line_total,
			  'line_subtotal_tax' => 0,
			  'line_tax_data'     => array(
				'total'    => array(),
				'subtotal' => array(),
			  ),
			  'quantity'          => $chained_item_qty,
			  'data'              => $product
			);
		}
	
		$package['contents_cost'] = $total_price;
		$package['cart_subtotal'] = $total_price;
		$package['contents'] = $contents;
	}
	
	  return $package;

}, 20, 2);