Currency Switcher - Integration template for bookings

/**
 * This code snippet is an example of how to implemnt a callback for the
 * conversion of custom products of type "booking". Please note that this is just
 * a skeleton, and no conversion is actually performed. The purpose of this code
 * is to illustrate how to interact with the Currency Switcher to add custom
 * conversion logic for custom product types.
 *
 * HOW TO USE THIS CODE
 * Simply add the code to the bottom of your theme's functions.php file, and it
 * will run automatically. For more information: https://www.skyverge.com/blog/add-custom-code-to-wordpress/
 *
 * GPL DISCLAIMER
 * Because this code program is free of charge, there is no warranty for it, to the extent permitted by applicable law.
 * Except when otherwise stated in writing the copyright holders and/or other parties provide the program "as is"
 * without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of
 * merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the program
 * is with you. should the program prove defective, you assume the cost of all necessary servicing, repair or correction.
 *
 * Need a consultation, or assistance to customise this code? Find us on Codeable: https://aelia.co/hire_us
 */

/**
 * Intercepts the product conversion callbacks used by the Currency Switcher, adding
 * new ones to handle custom products.
 *
 * @param callable $callback The original callback passed to the hook.
 * @param WC_Product The product to examine.
 * @return callable
 */
function my_custom_conversion_callback($callback, $product) {
  if($product->is_type('booking')) {
    $callback = 'my_custom_booking_conversion';
  }
  return $callback;
}

add_filter('wc_aelia_currencyswitcher_product_convert_callback', array($this, 'my_custom_conversion_callback'), 10, 2);

/**
 * Converts the prices of a booking product to the specified currency.
 *
 * @param WC_Product_MyCustomProduct product A custom product.
 * @param string currency A currency code.
 * @return WC_Product_MyCustomProduct The product with converted prices.
 */
function my_custom_booking_conversion($product, $currency) {
  /* Here you can perform any currency related operation you need. For example,
   * if your product prices were loaded in base currency, this is the perfect
   * place to replace them with the ones in the correct currency.
   *
   * If you designed your product class with built-in multi-currency support,
   * and it automatically loads its prices in the appropriate currency, you
   * won't have to do anything here. You will still need this callback, though,
   * so that the Currency Switcher will know that someone "took care" of the
   * custom product types, and no warnings will be raised.
   */

  // Ticket 6057 - Return booking products as they are
  return $product;
}