A compatibility function to make Advanced Product Labels and Dynamic Pricing work nicely together (percentage discount)

advanced-product-labels--dynamic-pricing-compatibility.php

<?php
/**
 * WooCommerce Advanced Product Labels / Dynamic Pricing smart labels
 */
function dynamic_pricing_advanced_product_labels_compat( $label ) {

	global $product;

	if ( ! $product ) :
		$product_posts = get_posts( array( 'post_type' => 'product', 'posts_per_page' => 1 ) );
		$product = reset( $product_posts );
	endif;

	$product = wc_get_product( $product );

	if ( class_exists( 'WC_Dynamic_Pricing' ) ) {

		$pricing = WC_Dynamic_Pricing::instance();

		if ( apply_filters( 'wc_dynamic_pricing_get_use_sale_price', true, $product ) ) {
			$working_price = $product->get_price();
		} else {
			$working_price = $product->get_regular_price();
		}


		$d_price = $pricing->on_get_price($working_price, $product, true );
		if ($d_price != $working_price && ( empty($sale_price) || $d_price < $sale_price)) {
			$regular_price = $working_price;
			$sale_price = $d_price;
		}

		$percentage = null;
		if ( ! empty( $regular_price ) && $regular_price != 0 ) :
			$percentage = ( $regular_price - $sale_price ) / $regular_price * 100;
		endif;

		if ( ! is_null( $percentage ) ) :
			$label = str_replace( '{percentage}', round( $percentage, apply_filters( 'wapl_filter_discount_round', 1 ) ) . '%', $label );
		endif;

		if ( ! empty( $regular_price ) && $regular_price != 0 ) :
			$label = str_replace( '{discount}', sprintf( get_woocommerce_price_format(), get_woocommerce_currency_symbol(), ($regular_price-$sale_price) ), $label );
			$label = str_replace( '{price}', sprintf( get_woocommerce_price_format(), get_woocommerce_currency_symbol(), $regular_price ), $label );
			$label = str_replace( '{saleprice}', sprintf( get_woocommerce_price_format(), get_woocommerce_currency_symbol(), $sale_price ), $label );
			$label = str_replace( '{delprice}', '<del>'.sprintf( get_woocommerce_price_format(), get_woocommerce_currency_symbol(), $regular_price ) . '</del>', $label );
		endif;

	}


	return $label;

}
add_action( 'wapl_product_label', 'dynamic_pricing_advanced_product_labels_compat', 9 );

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