<?php
/**
* This ongoing trait will have shared calculation logic between WC_Abstract_Order and WC_Cart_Totals classes.
*
* @package WooCommerce\Traits
* @version 3.9.0
*/
use Automattic\WooCommerce\Utilities\NumberUtil;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Trait WC_Item_Totals.
*
* Right now this do not have much, but plan is to eventually move all shared calculation logic between Orders and Cart in this file.
*
* @since 3.9.0
*/
trait WC_Item_Totals {
/**
* Line items to calculate. Define in child class.
*
* @since 3.9.0
* @param string $field Field name to calculate upon.
*
* @return array having `total`|`subtotal` property.
*/
abstract protected function get_values_for_total( $field );
/**
* Return rounded total based on settings. Will be used by Cart and Orders.
*
* @since 3.9.0
*
* @param array $values Values to round. Should be with precision.
*
* @return float|int Appropriately rounded value.
*/
public static function get_rounded_items_total( $values ) {
return array_sum(
array_map(
array( self::class, 'round_item_subtotal' ),
$values
)
);
}
/**
* Apply rounding to item subtotal before summing.
*
* @since 3.9.0
* @param float $value Item subtotal value.
* @return float
*/
public static function round_item_subtotal( $value ) {
if ( ! self::round_at_subtotal() ) {
$value = NumberUtil::round( $value );
}
return $value;
}
/**
* Should always round at subtotal?
*
* @since 3.9.0
* @return bool
*/
protected static function round_at_subtotal() {
return 'yes' === get_option( 'woocommerce_tax_round_at_subtotal' );
}
/**
* 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.
* @param bool $in_cents Whether precision of value is in cents.
* @return float
*/
protected static function round_line_tax( $value, $in_cents = true ) {
if ( ! self::round_at_subtotal() ) {
$value = wc_round_tax_total( $value, $in_cents ? 0 : null );
}
return $value;
}
}