<?php
// $Id: uc_attribute_tokens.module,v 1.1.2.1 2010/01/08 07:48:45 tr Exp $

/**
 * @file
 * Adds uc_cart_item tokens for attribute values of products.
 *
 * Originally written by Chris Yu <http://drupal.org/user/202205>.
 * Now updated to Drupal 6 / Ubercart 2, enhanced, and maintained by
 * Tim Rohaly <http://drupal.org/user/202830>.
 *
 * @author Tim Rohaly.    <http://drupal.org/user/202830>
 * @version $Id: uc_attribute_tokens.module,v 1.1.2.1 2010/01/08 07:48:45 tr Exp $
 */


/**
 * Implementation of hook_token_values(). (token.module)
 */
function uc_attribute_tokens_token_values($type, $object = NULL) {
  switch ($type) {
    case 'uc_cart_item': // For use with uc_custom_price
      $attributes = uc_product_get_attributes($object->nid);
      // Loop over all product attributes
      foreach ($attributes as $key => $attribute) {
        // Set attributes token to the value selected for this product
        $option_array = $object->data['attributes'][$key];
        if (is_array($option_array)) {
          // Checkbox attributes may have more than one selection
          $options = array();
          foreach ($option_array as $element) {
            if ($element) {
              $options[] = $attribute->options[$element]->name;
            }
          }
          $values[$attribute->name] = implode(', ', $options);
        }
        else {
          if (count($attribute->options)) {
            // Select or Radio attributes
            $values[$attribute->name] = $attribute->options[$option_array]->name;
          }
          else {
            // Textfield attribute
            $values[$attribute->name] = $option_array;
          }
        }
      }
      return $values;
      break;

    case 'attribute': // For use with uc_watermark
      if (uc_product_is_product($object)) {
        $attributes = uc_product_get_attributes($object->nid);
        // Loop over all product attributes
        foreach ($attributes as $attribute) {
          // Set attributes token to the value selected for this product
          $option_array = $object->data['attributes'][$attribute->label];

          // If option doesn't appear in product data, then it was not
          // required and not chosen.  Skip.
          if (isset($option_array)) {
            // Checkbox attributes may have more than one selection
            $values[$attribute->label] = implode(', ', $option_array);
          }
        }
      }
      return $values;
      break;
  }
}


/**
 * Implementation of hook_token_list(). (token.module)
 */
function uc_attribute_tokens_token_list($type = 'all') {
  if ($type == 'attribute' || $type == 'uc_cart_item' ||
      $type == 'ubercart'  || $type == 'all') {
    $tokens['attribute']['(attribute name)'] = t('Product attributes are made into tokens that match their name field.');
  }

  return $tokens;
}