Calculate discounted Component Option prices on session load.

woocommerce-component-props-discount-method.php

<?php
/**
 * Plugin Name: WooCommerce Composite Products - Early Discount Calculations
 * Plugin URI: https://woocommerce.com/products/composite-products/
 * Description: Calculate discounted Component Option prices on session load.
 * Version: 1.0
 * Author: SomewhereWarm
 * Author URI: https://somewherewarm.gr/
 * Developer: Manos Psychogyiopoulos
 *
 * Requires at least: 3.8
 * Tested up to: 5.3
 *
 * Copyright: © 2017-2020 SomewhereWarm SMPC ([email protected]).
 * License: GNU General Public License v3.0
 * License URI: http://www.gnu.org/licenses/gpl-3.0.html
 */
 
// To use this snippet, download this file into your plugins directory and activate it.
 
add_filter( 'woocommerce_composited_cart_item_discount_method', 'wc_pb_composited_cart_item_discount_method' );

function wc_pb_composited_cart_item_discount_method( $method ) {
	return 'props';
}