<?php

function pmpro_woo_make_single_product_purchasable( $is_purchasable, $product ) {
	// if the user currently has a membership level, just return current state of the product, else check it.
	if( pmpro_hasMembershipLevel() ) {
		return $is_purchasable;
	}else{
      return ( $product->id != 80 ? false : $is_purchasable ); //change product ID value of the product you want to sell to non-members.
	}
}
add_filter('woocommerce_is_purchasable', 'pmpro_woo_make_single_product_purchasable', 10, 2);

function remove_my_woo_prices( $price, $product ) {
 global $pmprowoo_product_levels;

	//no product levels or PMProWC not active
	if( empty( $pmprowoo_product_levels ) ){
		return '';
        }

	//check if the product is a membership level
	$product_ids = array_keys( $pmprowoo_product_levels );
	if( !in_array( $product->get_id(), $product_ids ) ) {
		return '';
        }

	//must be a level product
	return $price;
}

function hide_prices_for_non_pmpro_members(){

  //if user has a PMPro membership level simply return.
	if( pmpro_hasMembershipLevel() ){
		return;
	}

	//set price of all products to NULL
	add_filter( 'woocommerce_variable_sale_price_html', 'remove_my_woo_prices', 10, 2 );
	add_filter( 'woocommerce_variable_price_html', 'remove_my_woo_prices', 10, 2 );
	add_filter( 'woocommerce_get_price_html', 'remove_my_woo_prices', 10, 2 );


	//hide the sales badge
	add_filter('woocommerce_sale_flash', '__return_false');
}

add_action( 'wp', 'hide_prices_for_non_pmpro_members' );