870 lines
27 KiB
PHP
870 lines
27 KiB
PHP
<?php
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/**
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* Cart totals calculation class.
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*
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* Methods are protected and class is final to keep this as an internal API.
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* May be opened in the future once structure is stable.
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*
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* Rounding guide:
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* - if something is being stored e.g. item total, store unrounded. This is so taxes can be recalculated later accurately.
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* - if calculating a total, round (if settings allow).
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*
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* @package WooCommerce/Classes
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* @version 3.2.0
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* WC_Cart_Totals class.
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*
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* @since 3.2.0
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*/
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final class WC_Cart_Totals {
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/**
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* Reference to cart object.
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*
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* @since 3.2.0
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* @var WC_Cart
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*/
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protected $cart;
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/**
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* Reference to customer object.
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*
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* @since 3.2.0
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* @var array
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*/
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protected $customer;
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/**
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* Line items to calculate.
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*
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* @since 3.2.0
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* @var array
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*/
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protected $items = array();
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/**
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* Fees to calculate.
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*
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* @since 3.2.0
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* @var array
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*/
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protected $fees = array();
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/**
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* Shipping costs.
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*
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* @since 3.2.0
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* @var array
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*/
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protected $shipping = array();
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/**
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* Applied coupon objects.
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*
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* @since 3.2.0
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* @var array
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*/
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protected $coupons = array();
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/**
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* Item/coupon discount totals.
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*
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* @since 3.2.0
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* @var array
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*/
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protected $coupon_discount_totals = array();
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/**
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* Item/coupon discount tax totals.
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*
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* @since 3.2.0
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* @var array
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*/
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protected $coupon_discount_tax_totals = array();
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/**
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* Should taxes be calculated?
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*
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* @var boolean
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*/
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protected $calculate_tax = true;
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/**
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* Stores totals.
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*
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* @since 3.2.0
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* @var array
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*/
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protected $totals = array(
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'fees_total' => 0,
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'fees_total_tax' => 0,
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'items_subtotal' => 0,
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'items_subtotal_tax' => 0,
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'items_total' => 0,
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'items_total_tax' => 0,
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'total' => 0,
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'shipping_total' => 0,
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'shipping_tax_total' => 0,
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'discounts_total' => 0,
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);
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/**
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* Sets up the items provided, and calculate totals.
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*
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* @since 3.2.0
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* @throws Exception If missing WC_Cart object.
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* @param WC_Cart $cart Cart object to calculate totals for.
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*/
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public function __construct( &$cart = null ) {
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if ( ! is_a( $cart, 'WC_Cart' ) ) {
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throw new Exception( 'A valid WC_Cart object is required' );
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}
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$this->cart = $cart;
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$this->calculate_tax = wc_tax_enabled() && ! $cart->get_customer()->get_is_vat_exempt();
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$this->calculate();
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}
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/**
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* Run all calculations methods on the given items in sequence.
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*
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* @since 3.2.0
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*/
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protected function calculate() {
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$this->calculate_item_totals();
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$this->calculate_shipping_totals();
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$this->calculate_fee_totals();
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$this->calculate_totals();
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}
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/**
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* Get default blank set of props used per item.
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*
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* @since 3.2.0
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* @return array
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*/
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protected function get_default_item_props() {
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return (object) array(
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'object' => null,
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'tax_class' => '',
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'taxable' => false,
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'quantity' => 0,
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'product' => false,
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'price_includes_tax' => false,
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'subtotal' => 0,
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'subtotal_tax' => 0,
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'total' => 0,
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'total_tax' => 0,
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'taxes' => array(),
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);
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}
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/**
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* Get default blank set of props used per fee.
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*
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* @since 3.2.0
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* @return array
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*/
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protected function get_default_fee_props() {
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return (object) array(
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'object' => null,
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'tax_class' => '',
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'taxable' => false,
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'total_tax' => 0,
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'taxes' => array(),
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);
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}
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/**
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* Get default blank set of props used per shipping row.
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*
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* @since 3.2.0
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* @return array
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*/
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protected function get_default_shipping_props() {
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return (object) array(
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'object' => null,
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'tax_class' => '',
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'taxable' => false,
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'total' => 0,
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'total_tax' => 0,
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'taxes' => array(),
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);
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}
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/**
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* Should we round at subtotal level only?
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*
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* @return bool
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*/
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protected function round_at_subtotal() {
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return 'yes' === get_option( 'woocommerce_tax_round_at_subtotal' );
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}
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/**
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* Handles a cart or order object passed in for calculation. Normalises data
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* into the same format for use by this class.
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*
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* Each item is made up of the following props, in addition to those returned by get_default_item_props() for totals.
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* - key: An identifier for the item (cart item key or line item ID).
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* - cart_item: For carts, the cart item from the cart which may include custom data.
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* - quantity: The qty for this line.
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* - price: The line price in cents.
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* - product: The product object this cart item is for.
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*
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* @since 3.2.0
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*/
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protected function get_items_from_cart() {
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$this->items = array();
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foreach ( $this->cart->get_cart() as $cart_item_key => $cart_item ) {
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$item = $this->get_default_item_props();
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$item->key = $cart_item_key;
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$item->object = $cart_item;
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$item->tax_class = $cart_item['data']->get_tax_class();
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$item->taxable = 'taxable' === $cart_item['data']->get_tax_status();
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$item->price_includes_tax = wc_prices_include_tax();
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$item->quantity = $cart_item['quantity'];
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$item->price = wc_add_number_precision_deep( $cart_item['data']->get_price() * $cart_item['quantity'] );
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$item->product = $cart_item['data'];
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$item->tax_rates = $this->get_item_tax_rates( $item );
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$this->items[ $cart_item_key ] = $item;
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}
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}
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/**
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* Get item costs grouped by tax class.
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*
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* @since 3.2.0
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* @return array
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*/
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protected function get_tax_class_costs() {
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$item_tax_classes = wp_list_pluck( $this->items, 'tax_class' );
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$shipping_tax_classes = wp_list_pluck( $this->shipping, 'tax_class' );
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$fee_tax_classes = wp_list_pluck( $this->fees, 'tax_class' );
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$costs = array_fill_keys( $item_tax_classes + $shipping_tax_classes + $fee_tax_classes, 0 );
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$costs['non-taxable'] = 0;
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foreach ( $this->items + $this->fees + $this->shipping as $item ) {
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if ( 0 > $item->total ) {
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continue;
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}
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if ( ! $item->taxable ) {
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$costs['non-taxable'] += $item->total;
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} elseif ( 'inherit' === $item->tax_class ) {
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$costs[ reset( $item_tax_classes ) ] += $item->total;
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} else {
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$costs[ $item->tax_class ] += $item->total;
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}
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}
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return array_filter( $costs );
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}
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/**
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* Get fee objects from the cart. Normalises data
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* into the same format for use by this class.
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*
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* @since 3.2.0
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*/
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protected function get_fees_from_cart() {
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$this->fees = array();
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$this->cart->calculate_fees();
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$fee_running_total = 0;
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foreach ( $this->cart->get_fees() as $fee_key => $fee_object ) {
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$fee = $this->get_default_fee_props();
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$fee->object = $fee_object;
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$fee->tax_class = $fee->object->tax_class;
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$fee->taxable = $fee->object->taxable;
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$fee->total = wc_add_number_precision_deep( $fee->object->amount );
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// Negative fees should not make the order total go negative.
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if ( 0 > $fee->total ) {
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$max_discount = round( $this->get_total( 'items_total', true ) + $fee_running_total + $this->get_total( 'shipping_total', true ) ) * -1;
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if ( $fee->total < $max_discount ) {
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$fee->total = $max_discount;
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}
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}
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$fee_running_total += $fee->total;
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if ( $this->calculate_tax ) {
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if ( 0 > $fee->total ) {
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// Negative fees should have the taxes split between all items so it works as a true discount.
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$tax_class_costs = $this->get_tax_class_costs();
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$total_cost = array_sum( $tax_class_costs );
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if ( $total_cost ) {
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foreach ( $tax_class_costs as $tax_class => $tax_class_cost ) {
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if ( 'non-taxable' === $tax_class ) {
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continue;
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}
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$proportion = $tax_class_cost / $total_cost;
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$cart_discount_proportion = $fee->total * $proportion;
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$fee->taxes = wc_array_merge_recursive_numeric( $fee->taxes, WC_Tax::calc_tax( $fee->total * $proportion, WC_Tax::get_rates( $tax_class ) ) );
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}
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}
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} elseif ( $fee->object->taxable ) {
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$fee->taxes = WC_Tax::calc_tax( $fee->total, WC_Tax::get_rates( $fee->tax_class, $this->cart->get_customer() ), false );
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}
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}
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$fee->taxes = apply_filters( 'woocommerce_cart_totals_get_fees_from_cart_taxes', $fee->taxes, $fee, $this );
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$fee->total_tax = array_sum( array_map( array( $this, 'round_line_tax' ), $fee->taxes ) );
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// Set totals within object.
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$fee->object->total = wc_remove_number_precision_deep( $fee->total );
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$fee->object->tax_data = wc_remove_number_precision_deep( $fee->taxes );
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$fee->object->tax = wc_remove_number_precision_deep( $fee->total_tax );
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$this->fees[ $fee_key ] = $fee;
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}
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}
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/**
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* Get shipping methods from the cart and normalise.
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*
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* @since 3.2.0
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*/
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protected function get_shipping_from_cart() {
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$this->shipping = array();
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if ( ! $this->cart->show_shipping() ) {
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return;
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}
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foreach ( $this->cart->calculate_shipping() as $key => $shipping_object ) {
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$shipping_line = $this->get_default_shipping_props();
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$shipping_line->object = $shipping_object;
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$shipping_line->tax_class = get_option( 'woocommerce_shipping_tax_class' );
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$shipping_line->taxable = true;
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$shipping_line->total = wc_add_number_precision_deep( $shipping_object->cost );
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$shipping_line->taxes = wc_add_number_precision_deep( $shipping_object->taxes, false );
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$shipping_line->total_tax = array_sum( array_map( array( $this, 'round_line_tax' ), $shipping_line->taxes ) );
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$this->shipping[ $key ] = $shipping_line;
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}
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}
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/**
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* Return array of coupon objects from the cart. Normalises data
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* into the same format for use by this class.
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*
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* @since 3.2.0
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*/
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protected function get_coupons_from_cart() {
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$this->coupons = $this->cart->get_coupons();
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foreach ( $this->coupons as $coupon ) {
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switch ( $coupon->get_discount_type() ) {
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case 'fixed_product':
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$coupon->sort = 1;
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break;
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case 'percent':
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$coupon->sort = 2;
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break;
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case 'fixed_cart':
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$coupon->sort = 3;
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break;
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default:
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$coupon->sort = 0;
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break;
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}
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// Allow plugins to override the default order.
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$coupon->sort = apply_filters( 'woocommerce_coupon_sort', $coupon->sort, $coupon );
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}
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uasort( $this->coupons, array( $this, 'sort_coupons_callback' ) );
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}
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/**
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* Sort coupons so discounts apply consistently across installs.
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*
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* In order of priority;
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* - sort param
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* - usage restriction
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* - coupon value
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* - ID
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*
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* @param WC_Coupon $a Coupon object.
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* @param WC_Coupon $b Coupon object.
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* @return int
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*/
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protected function sort_coupons_callback( $a, $b ) {
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if ( $a->sort === $b->sort ) {
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if ( $a->get_limit_usage_to_x_items() === $b->get_limit_usage_to_x_items() ) {
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if ( $a->get_amount() === $b->get_amount() ) {
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return $b->get_id() - $a->get_id();
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}
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return ( $a->get_amount() < $b->get_amount() ) ? -1 : 1;
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}
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return ( $a->get_limit_usage_to_x_items() < $b->get_limit_usage_to_x_items() ) ? -1 : 1;
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}
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return ( $a->sort < $b->sort ) ? -1 : 1;
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}
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/**
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* Ran to remove all base taxes from an item. Used when prices include tax, and the customer is tax exempt.
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*
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* @since 3.2.2
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* @param object $item Item to adjust the prices of.
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* @return object
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*/
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protected function remove_item_base_taxes( $item ) {
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if ( $item->price_includes_tax && $item->taxable ) {
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if ( apply_filters( 'woocommerce_adjust_non_base_location_prices', true ) ) {
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$base_tax_rates = WC_Tax::get_base_tax_rates( $item->product->get_tax_class( 'unfiltered' ) );
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} else {
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/**
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* If we want all customers to pay the same price on this store, we should not remove base taxes from a VAT exempt user's price,
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* but just the relevent tax rate. See issue #20911.
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*/
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$base_tax_rates = $item->tax_rates;
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}
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// Work out a new base price without the shop's base tax.
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$taxes = WC_Tax::calc_tax( $item->price, $base_tax_rates, true );
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// Now we have a new item price (excluding TAX).
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$item->price = round( $item->price - array_sum( $taxes ) );
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$item->price_includes_tax = false;
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}
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return $item;
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}
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/**
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* Only ran if woocommerce_adjust_non_base_location_prices is true.
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*
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* If the customer is outside of the base location, this removes the base
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* taxes. This is off by default unless the filter is used.
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*
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* Uses edit context so unfiltered tax class is returned.
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*
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* @since 3.2.0
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* @param object $item Item to adjust the prices of.
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* @return object
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*/
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protected function adjust_non_base_location_price( $item ) {
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if ( $item->price_includes_tax && $item->taxable ) {
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$base_tax_rates = WC_Tax::get_base_tax_rates( $item->product->get_tax_class( 'unfiltered' ) );
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if ( $item->tax_rates !== $base_tax_rates ) {
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// Work out a new base price without the shop's base tax.
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$taxes = WC_Tax::calc_tax( $item->price, $base_tax_rates, true );
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$new_taxes = WC_Tax::calc_tax( $item->price - array_sum( $taxes ), $item->tax_rates, false );
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// Now we have a new item price.
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$item->price = round( $item->price - array_sum( $taxes ) + array_sum( $new_taxes ) );
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}
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}
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return $item;
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}
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/**
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* Get discounted price of an item with precision (in cents).
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*
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* @since 3.2.0
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* @param object $item_key Item to get the price of.
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* @return int
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*/
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protected function get_discounted_price_in_cents( $item_key ) {
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$item = $this->items[ $item_key ];
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$price = isset( $this->coupon_discount_totals[ $item_key ] ) ? $item->price - $this->coupon_discount_totals[ $item_key ] : $item->price;
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return $price;
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}
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/**
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* Get tax rates for an item. Caches rates in class to avoid multiple look ups.
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*
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* @param object $item Item to get tax rates for.
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* @return array of taxes
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*/
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protected function get_item_tax_rates( $item ) {
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if ( ! wc_tax_enabled() ) {
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return array();
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}
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$tax_class = $item->product->get_tax_class();
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$item_tax_rates = isset( $this->item_tax_rates[ $tax_class ] ) ? $this->item_tax_rates[ $tax_class ] : $this->item_tax_rates[ $tax_class ] = WC_Tax::get_rates( $item->product->get_tax_class(), $this->cart->get_customer() );
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// Allow plugins to filter item tax rates.
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return apply_filters( 'woocommerce_cart_totals_get_item_tax_rates', $item_tax_rates, $item, $this->cart );
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}
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/**
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* Get item costs grouped by tax class.
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*
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|
* @since 3.2.0
|
|
* @return array
|
|
*/
|
|
protected function get_item_costs_by_tax_class() {
|
|
$tax_classes = array(
|
|
'non-taxable' => 0,
|
|
);
|
|
|
|
foreach ( $this->items + $this->fees + $this->shipping as $item ) {
|
|
if ( ! isset( $tax_classes[ $item->tax_class ] ) ) {
|
|
$tax_classes[ $item->tax_class ] = 0;
|
|
}
|
|
|
|
if ( $item->taxable ) {
|
|
$tax_classes[ $item->tax_class ] += $item->total;
|
|
} else {
|
|
$tax_classes['non-taxable'] += $item->total;
|
|
}
|
|
}
|
|
|
|
return $tax_classes;
|
|
}
|
|
|
|
/**
|
|
* Get a single total with or without precision (in cents).
|
|
*
|
|
* @since 3.2.0
|
|
* @param string $key Total to get.
|
|
* @param bool $in_cents Should the totals be returned in cents, or without precision.
|
|
* @return int|float
|
|
*/
|
|
public function get_total( $key = 'total', $in_cents = false ) {
|
|
$totals = $this->get_totals( $in_cents );
|
|
return isset( $totals[ $key ] ) ? $totals[ $key ] : 0;
|
|
}
|
|
|
|
/**
|
|
* Set a single total.
|
|
*
|
|
* @since 3.2.0
|
|
* @param string $key Total name you want to set.
|
|
* @param int $total Total to set.
|
|
*/
|
|
protected function set_total( $key = 'total', $total ) {
|
|
$this->totals[ $key ] = $total;
|
|
}
|
|
|
|
/**
|
|
* Get all totals with or without precision (in cents).
|
|
*
|
|
* @since 3.2.0
|
|
* @param bool $in_cents Should the totals be returned in cents, or without precision.
|
|
* @return array.
|
|
*/
|
|
public function get_totals( $in_cents = false ) {
|
|
return $in_cents ? $this->totals : wc_remove_number_precision_deep( $this->totals );
|
|
}
|
|
|
|
/**
|
|
* Get taxes merged by type.
|
|
*
|
|
* @since 3.2.0
|
|
* @param bool $in_cents If returned value should be in cents.
|
|
* @param array|string $types Types to merge and return. Defaults to all.
|
|
* @return array
|
|
*/
|
|
protected function get_merged_taxes( $in_cents = false, $types = array( 'items', 'fees', 'shipping' ) ) {
|
|
$items = array();
|
|
$taxes = array();
|
|
|
|
if ( is_string( $types ) ) {
|
|
$types = array( $types );
|
|
}
|
|
|
|
foreach ( $types as $type ) {
|
|
if ( isset( $this->$type ) ) {
|
|
$items = array_merge( $items, $this->$type );
|
|
}
|
|
}
|
|
|
|
foreach ( $items as $item ) {
|
|
foreach ( $item->taxes as $rate_id => $rate ) {
|
|
if ( ! isset( $taxes[ $rate_id ] ) ) {
|
|
$taxes[ $rate_id ] = 0;
|
|
}
|
|
$taxes[ $rate_id ] += $this->round_line_tax( $rate );
|
|
}
|
|
}
|
|
$taxes = $this->round_merged_taxes( $taxes );
|
|
|
|
return $in_cents ? $taxes : wc_remove_number_precision_deep( $taxes );
|
|
}
|
|
|
|
/**
|
|
* Round merged taxes.
|
|
*
|
|
* @since 3.5.4
|
|
* @param array $taxes Taxes to round.
|
|
* @return array
|
|
*/
|
|
protected function round_merged_taxes( $taxes ) {
|
|
if ( $this->round_at_subtotal() ) {
|
|
foreach ( $taxes as $rate_id => $tax ) {
|
|
$taxes[ $rate_id ] = wc_round_tax_total( $tax, 0 );
|
|
}
|
|
}
|
|
|
|
return $taxes;
|
|
}
|
|
|
|
/**
|
|
* Combine item taxes into a single array, preserving keys.
|
|
*
|
|
* @since 3.2.0
|
|
* @param array $item_taxes Taxes to combine.
|
|
* @return array
|
|
*/
|
|
protected function combine_item_taxes( $item_taxes ) {
|
|
$merged_taxes = array();
|
|
foreach ( $item_taxes as $taxes ) {
|
|
foreach ( $taxes as $tax_id => $tax_amount ) {
|
|
if ( ! isset( $merged_taxes[ $tax_id ] ) ) {
|
|
$merged_taxes[ $tax_id ] = 0;
|
|
}
|
|
$merged_taxes[ $tax_id ] += $tax_amount;
|
|
}
|
|
}
|
|
return $merged_taxes;
|
|
}
|
|
|
|
/*
|
|
|--------------------------------------------------------------------------
|
|
| Calculation methods.
|
|
|--------------------------------------------------------------------------
|
|
*/
|
|
|
|
/**
|
|
* Calculate item totals.
|
|
*
|
|
* @since 3.2.0
|
|
*/
|
|
protected function calculate_item_totals() {
|
|
$this->get_items_from_cart();
|
|
$this->calculate_item_subtotals();
|
|
$this->calculate_discounts();
|
|
|
|
foreach ( $this->items as $item_key => $item ) {
|
|
$item->total = $this->get_discounted_price_in_cents( $item_key );
|
|
$item->total_tax = 0;
|
|
|
|
if ( has_filter( 'woocommerce_get_discounted_price' ) ) {
|
|
/**
|
|
* Allow plugins to filter this price like in the legacy cart class.
|
|
*
|
|
* This is legacy and should probably be deprecated in the future.
|
|
* $item->object is the cart item object.
|
|
* $this->cart is the cart object.
|
|
*/
|
|
$item->total = wc_add_number_precision(
|
|
apply_filters( 'woocommerce_get_discounted_price', wc_remove_number_precision( $item->total ), $item->object, $this->cart )
|
|
);
|
|
}
|
|
|
|
if ( $this->calculate_tax && $item->product->is_taxable() ) {
|
|
$total_taxes = apply_filters( 'woocommerce_calculate_item_totals_taxes', WC_Tax::calc_tax( $item->total, $item->tax_rates, $item->price_includes_tax ), $item, $this );
|
|
$item->taxes = $total_taxes;
|
|
$item->total_tax = array_sum( array_map( array( $this, 'round_line_tax' ), $item->taxes ) );
|
|
|
|
if ( $item->price_includes_tax ) {
|
|
// Use unrounded taxes so we can re-calculate from the orders screen accurately later.
|
|
$item->total = $item->total - array_sum( $item->taxes );
|
|
}
|
|
}
|
|
|
|
$this->cart->cart_contents[ $item_key ]['line_tax_data']['total'] = wc_remove_number_precision_deep( $item->taxes );
|
|
$this->cart->cart_contents[ $item_key ]['line_total'] = wc_remove_number_precision( $item->total );
|
|
$this->cart->cart_contents[ $item_key ]['line_tax'] = wc_remove_number_precision( $item->total_tax );
|
|
}
|
|
|
|
$this->set_total( 'items_total', array_sum( array_map( 'round', array_values( wp_list_pluck( $this->items, 'total' ) ) ) ) );
|
|
$this->set_total( 'items_total_tax', array_sum( array_values( wp_list_pluck( $this->items, 'total_tax' ) ) ) );
|
|
|
|
$this->cart->set_cart_contents_total( $this->get_total( 'items_total' ) );
|
|
$this->cart->set_cart_contents_tax( array_sum( $this->get_merged_taxes( false, 'items' ) ) );
|
|
$this->cart->set_cart_contents_taxes( $this->get_merged_taxes( false, 'items' ) );
|
|
}
|
|
|
|
/**
|
|
* Subtotals are costs before discounts.
|
|
*
|
|
* To prevent rounding issues we need to work with the inclusive price where possible.
|
|
* otherwise we'll see errors such as when working with a 9.99 inc price, 20% VAT which would.
|
|
* be 8.325 leading to totals being 1p off.
|
|
*
|
|
* Pre tax coupons come off the price the customer thinks they are paying - tax is calculated.
|
|
* afterwards.
|
|
*
|
|
* e.g. $100 bike with $10 coupon = customer pays $90 and tax worked backwards from that.
|
|
*
|
|
* @since 3.2.0
|
|
*/
|
|
protected function calculate_item_subtotals() {
|
|
foreach ( $this->items as $item_key => $item ) {
|
|
if ( $item->price_includes_tax ) {
|
|
if ( $this->cart->get_customer()->get_is_vat_exempt() ) {
|
|
$item = $this->remove_item_base_taxes( $item );
|
|
} elseif ( apply_filters( 'woocommerce_adjust_non_base_location_prices', true ) ) {
|
|
$item = $this->adjust_non_base_location_price( $item );
|
|
}
|
|
}
|
|
|
|
$item->subtotal = $item->price;
|
|
$subtotal_taxes = array();
|
|
|
|
if ( $this->calculate_tax && $item->product->is_taxable() ) {
|
|
$subtotal_taxes = WC_Tax::calc_tax( $item->subtotal, $item->tax_rates, $item->price_includes_tax );
|
|
$item->subtotal_tax = array_sum( array_map( array( $this, 'round_line_tax' ), $subtotal_taxes ) );
|
|
|
|
if ( $item->price_includes_tax ) {
|
|
// Use unrounded taxes so we can re-calculate from the orders screen accurately later.
|
|
$item->subtotal = $item->subtotal - array_sum( $subtotal_taxes );
|
|
}
|
|
}
|
|
|
|
$this->cart->cart_contents[ $item_key ]['line_tax_data'] = array( 'subtotal' => wc_remove_number_precision_deep( $subtotal_taxes ) );
|
|
$this->cart->cart_contents[ $item_key ]['line_subtotal'] = wc_remove_number_precision( $item->subtotal );
|
|
$this->cart->cart_contents[ $item_key ]['line_subtotal_tax'] = wc_remove_number_precision( $item->subtotal_tax );
|
|
}
|
|
$this->set_total( 'items_subtotal', array_sum( array_map( 'round', array_values( wp_list_pluck( $this->items, 'subtotal' ) ) ) ) );
|
|
$this->set_total( 'items_subtotal_tax', array_sum( array_values( wp_list_pluck( $this->items, 'subtotal_tax' ) ) ) );
|
|
|
|
$this->cart->set_subtotal( $this->get_total( 'items_subtotal' ) );
|
|
$this->cart->set_subtotal_tax( $this->get_total( 'items_subtotal_tax' ) );
|
|
}
|
|
|
|
/**
|
|
* Calculate COUPON based discounts which change item prices.
|
|
*
|
|
* @since 3.2.0
|
|
* @uses WC_Discounts class.
|
|
*/
|
|
protected function calculate_discounts() {
|
|
$this->get_coupons_from_cart();
|
|
|
|
$discounts = new WC_Discounts( $this->cart );
|
|
|
|
// Set items directly so the discounts class can see any tax adjustments made thus far using subtotals.
|
|
$discounts->set_items( $this->items );
|
|
|
|
foreach ( $this->coupons as $coupon ) {
|
|
$discounts->apply_coupon( $coupon );
|
|
}
|
|
|
|
$coupon_discount_amounts = $discounts->get_discounts_by_coupon( true );
|
|
$coupon_discount_tax_amounts = array();
|
|
|
|
// See how much tax was 'discounted' per item and per coupon.
|
|
if ( $this->calculate_tax ) {
|
|
foreach ( $discounts->get_discounts( true ) as $coupon_code => $coupon_discounts ) {
|
|
$coupon_discount_tax_amounts[ $coupon_code ] = 0;
|
|
|
|
foreach ( $coupon_discounts as $item_key => $coupon_discount ) {
|
|
$item = $this->items[ $item_key ];
|
|
|
|
if ( $item->product->is_taxable() ) {
|
|
// Item subtotals were sent, so set 3rd param.
|
|
$item_tax = wc_round_tax_total( array_sum( WC_Tax::calc_tax( $coupon_discount, $item->tax_rates, $item->price_includes_tax ) ), 0 );
|
|
|
|
// Sum total tax.
|
|
$coupon_discount_tax_amounts[ $coupon_code ] += $item_tax;
|
|
|
|
// Remove tax from discount total.
|
|
if ( $item->price_includes_tax ) {
|
|
$coupon_discount_amounts[ $coupon_code ] -= $item_tax;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$this->coupon_discount_totals = (array) $discounts->get_discounts_by_item( true );
|
|
$this->coupon_discount_tax_totals = $coupon_discount_tax_amounts;
|
|
|
|
if ( wc_prices_include_tax() ) {
|
|
$this->set_total( 'discounts_total', array_sum( $this->coupon_discount_totals ) - array_sum( $this->coupon_discount_tax_totals ) );
|
|
$this->set_total( 'discounts_tax_total', array_sum( $this->coupon_discount_tax_totals ) );
|
|
} else {
|
|
$this->set_total( 'discounts_total', array_sum( $this->coupon_discount_totals ) );
|
|
$this->set_total( 'discounts_tax_total', array_sum( $this->coupon_discount_tax_totals ) );
|
|
}
|
|
|
|
$this->cart->set_coupon_discount_totals( wc_remove_number_precision_deep( $coupon_discount_amounts ) );
|
|
$this->cart->set_coupon_discount_tax_totals( wc_remove_number_precision_deep( $coupon_discount_tax_amounts ) );
|
|
|
|
// Add totals to cart object. Note: Discount total for cart is excl tax.
|
|
$this->cart->set_discount_total( $this->get_total( 'discounts_total' ) );
|
|
$this->cart->set_discount_tax( $this->get_total( 'discounts_tax_total' ) );
|
|
}
|
|
|
|
/**
|
|
* Triggers the cart fees API, grabs the list of fees, and calculates taxes.
|
|
*
|
|
* Note: This class sets the totals for the 'object' as they are calculated. This is so that APIs like the fees API can see these totals if needed.
|
|
*
|
|
* @since 3.2.0
|
|
*/
|
|
protected function calculate_fee_totals() {
|
|
$this->get_fees_from_cart();
|
|
|
|
$this->set_total( 'fees_total', array_sum( wp_list_pluck( $this->fees, 'total' ) ) );
|
|
$this->set_total( 'fees_total_tax', array_sum( wp_list_pluck( $this->fees, 'total_tax' ) ) );
|
|
|
|
$this->cart->fees_api()->set_fees( wp_list_pluck( $this->fees, 'object' ) );
|
|
$this->cart->set_fee_total( wc_remove_number_precision_deep( array_sum( wp_list_pluck( $this->fees, 'total' ) ) ) );
|
|
$this->cart->set_fee_tax( wc_remove_number_precision_deep( array_sum( wp_list_pluck( $this->fees, 'total_tax' ) ) ) );
|
|
$this->cart->set_fee_taxes( wc_remove_number_precision_deep( $this->combine_item_taxes( wp_list_pluck( $this->fees, 'taxes' ) ) ) );
|
|
}
|
|
|
|
/**
|
|
* Calculate any shipping taxes.
|
|
*
|
|
* @since 3.2.0
|
|
*/
|
|
protected function calculate_shipping_totals() {
|
|
$this->get_shipping_from_cart();
|
|
$this->set_total( 'shipping_total', array_sum( wp_list_pluck( $this->shipping, 'total' ) ) );
|
|
$this->set_total( 'shipping_tax_total', array_sum( wp_list_pluck( $this->shipping, 'total_tax' ) ) );
|
|
|
|
$this->cart->set_shipping_total( $this->get_total( 'shipping_total' ) );
|
|
$this->cart->set_shipping_tax( $this->get_total( 'shipping_tax_total' ) );
|
|
$this->cart->set_shipping_taxes( wc_remove_number_precision_deep( $this->combine_item_taxes( wp_list_pluck( $this->shipping, 'taxes' ) ) ) );
|
|
}
|
|
|
|
/**
|
|
* Main cart totals.
|
|
*
|
|
* @since 3.2.0
|
|
*/
|
|
protected function calculate_totals() {
|
|
$this->set_total( 'total', round( $this->get_total( 'items_total', true ) + $this->get_total( 'fees_total', true ) + $this->get_total( 'shipping_total', true ) + array_sum( $this->get_merged_taxes( true ) ), 0 ) );
|
|
$this->cart->set_total_tax( array_sum( $this->get_merged_taxes( false ) ) );
|
|
|
|
// Allow plugins to hook and alter totals before final total is calculated.
|
|
if ( has_action( 'woocommerce_calculate_totals' ) ) {
|
|
do_action( 'woocommerce_calculate_totals', $this->cart );
|
|
}
|
|
|
|
// Allow plugins to filter the grand total, and sum the cart totals in case of modifications.
|
|
$this->cart->set_total( max( 0, apply_filters( 'woocommerce_calculated_total', $this->get_total( 'total' ), $this->cart ) ) );
|
|
}
|
|
|
|
/**
|
|
* Apply rounding to an array of taxes before summing. Rounds to store DP setting, ignoring precision.
|
|
*
|
|
* @since 3.2.6
|
|
* @param float $value Tax value.
|
|
* @return float
|
|
*/
|
|
protected function round_line_tax( $value ) {
|
|
if ( ! $this->round_at_subtotal() ) {
|
|
$value = wc_round_tax_total( $value, 0 );
|
|
}
|
|
return $value;
|
|
}
|
|
}
|