Sitewide Sales compatibility with RightPress Product Prices - Live Update.

my_sws_apply_sitewide_sales_discount_to_live_price.php

<?php
/**
 * Sitewide Sales compatibility with RightPress Product Prices - Live Update.
 */
function my_sws_apply_sitewide_sales_discount_to_live_price($price, $product) {
	// Return early if Sitewide Sales is not active.
	if ( ! defined ( 'SWSALES_VERSION' ) ) {
		return $price;
	}

	// Check if Sitewide Sales has a sale is going on.
	$active_sitewide_sale = Sitewide_Sales\classes\SWSales_Sitewide_Sale::get_active_sitewide_sale();

	// Make sure there is a sale and it's for WC.
	if ( null === $active_sitewide_sale || 'wc' !== $active_sitewide_sale->get_sale_type() ) {
		return $price;
	}

	// We have a WooCommerce sale. Get the coupon ID associated with the sale
	$coupon_id = $active_sitewide_sale->get_meta_value( 'swsales_wc_coupon_id', null );

	// Our returned price.
	$return_price  = $price;

	if ( $coupon_id ) {
		$coupon = new WC_Coupon( $coupon_id );
		if ( $coupon->is_valid() && $coupon->is_valid_for_product( $product ) ) {
			// Calculate the discounted price.

			// Use this line to base the discount off of the product's regular price. 
			$discount_amount = $coupon->get_discount_amount( $product->get_price('edit') );

			// Use this line to base the discount off of the product current live update price.
			// $return_price = $coupon->get_discount_amount( $price ); 

			$return_price = $price - $discount_amount;
		}
	}

	// Return the price.
	return $return_price;
}
add_filter( 'rightpress_product_price_live_update_price', 'my_sws_apply_sitewide_sales_discount_to_live_price', 10, 2 );