<?php

/**
 * @file
 * Provides components to the Webform module utilizing the Ubercart package.
 */

/**
 * Implements hook_menu().
 */
function uc_webform_menu() {
  $items = array();

  $items['cart/delete-form/%'] = array(
    'title' => 'Delete',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('uc_webform_submission_delete_products_form', 2),
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
  );
  $items['uc_webform/autocomplete'] = array(
    'title' => 'Product autocomplete',
    'page callback' => '_uc_webform_autocomplete_products',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
  );
  $items['node/%webform_menu/webform-results/orders'] = array(
    'title' => 'Orders',
    'page callback' => 'uc_webform_product_analysis',
    'page arguments' => array(1),
    'access callback' => 'webform_results_access',
    'access arguments' => array(1),
    'weight' => 5,
    'type' => MENU_LOCAL_TASK,
  );

  return $items;
}

/**
 * Implements hook_theme().
 */
function uc_webform_theme() {
  return array(
    'uc_webform_product_analysis' => array('variables' => array('node' => NULL)),
  );
}

/**
 * Provides an auto-complete list of products that do not contain attributes.
 */
function _uc_webform_autocomplete_products($string = '') {
  $matches = array();

  // Limit selection to only those products that do *not* contain attributes.
  $attrib_query = db_select('uc_product_attributes', 'pa')
    ->fields('pa', array('nid'));

  $query = db_select('node', 'n')
    ->fields('n', array('nid', 'title'))
    ->condition('n.title', '%' . db_like($string) . '%', 'LIKE')
    ->condition('n.nid', $attrib_query, 'NOT IN');

  $query->join('uc_products', 'p', 'p.nid = n.nid');
  $query->addField('p', 'model');

  foreach ($query->execute() as $product) {
    $matches[$product->nid . '_' . $product->model] = check_plain($product->title);
  }

  drupal_json_output($matches);
}

/**
 * Provides a simple analysis of submissions that contain products.
 *
 * Called when viewing the "Orders" tab from within the results section of a
 * particular webform.
 */
function uc_webform_product_analysis($node, $sids = array(), $analysis_component = NULL) {
  if (!is_array($sids)) {
    $sids = array();
  }

  // If showing a component's details, we don't want to loose the menu tabs.
  if ($analysis_component) {
    $item = menu_get_item('node/' . $node->nid . '/webform-results/analysis');
    menu_set_item(NULL, $item);
  }

  $components = isset($analysis_component) ? array($analysis_component['cid'] => $analysis_component) : $node->webform['components'];
  $data = array();
  $cids = array();
  $order_status_cid = 0;

  // First, find the Order Status cid.
  foreach ($components as $cid => $component) {
    if ($component['form_key'] == 'order_status') {
      $order_status_cid = $component['cid'];
    }
  }

  foreach ($components as $cid => $component) {
    // Limit the results to product and product_list components.
    if ($component['type'] == 'product') {
      if ($row_data = _uc_webform_product_orders($component, $order_status_cid)) {
        $data[$cid] = $row_data;
      }
      $cids[] = $component['cid'];
    }
    elseif ($component['type'] == 'product_list') {
      if ($row_data = _uc_webform_product_list_orders($component, $order_status_cid)) {
        $data[$cid] = $row_data;
      }
      $cids[] = $component['cid'];
    }
    elseif ($component['type'] == 'product_grid') {
      if ($row_data = _uc_webform_product_grid_orders($component, $order_status_cid)) {
        $data[$cid] = $row_data;
      }
      $cids[] = $component['cid'];
    }
  }

  if (empty($cids)) {
    return t('There are no products associated with this webform.');
  }
  else {
    return theme('uc_webform_product_analysis', array(
      'node' => $node,
      'data' => $data,
      'sids' => $sids,
      'analysis_component' => $analysis_component,
      'order_status_cid' => $order_status_cid));
  }
}

/**
 * Generate statistics for product components, limited to checked out webforms.
 *
 * This information is displayed under the "orders" tab of the webform results.
 */
function _uc_webform_product_orders($component, $order_status_cid) {

  // First, get the list of all submission IDs for webform submissions where
  // checkout has been completed.
  $query = db_select('webform_submitted_data', 'wsd')
    ->fields('wsd', array('sid'))
    ->condition('nid', $component['nid'], '=')
    ->condition('cid', $order_status_cid, '=')
    ->condition('data', 'Did not complete checkout', '<>');

  $sids = array();
  foreach ($query->execute() as $submission) {
    $sids[] = $submission->sid;
  }
  // Use the array of checked out submission ID's to grab only the checked out
  // product data.
  $product_results = array();
  $total = 0;

  if (!empty($sids)) {
    $co_query = db_select('webform_submitted_data', 'wsd')
      ->fields('wsd', array('no', 'data'))
      ->condition('cid', $component['cid'], '=')
      ->condition('nid', $component['nid'], '=')
      ->condition('sid', $sids, 'IN');

    foreach ($co_query->execute() as $co_result) {
      if ($co_result->no == 2) {
        $total += $co_result->data;
      }
    }
  }

  $product_info = explode('_', $component['extra']['product'], 2);

  $rows[0] = array(t($product_info[1]), $total);

  if ($total > 0) {
    return $rows;
  }
  else {
    return NULL;
  }
}

/**
 * Statistics for product_list components, limited to checked out webforms.
 *
 * This information is displayed under the "Orders" tab of the webform results.
 */
function _uc_webform_product_list_orders($component, $order_status_cid) {

  // First, get the list of all submission IDs for webform submissions where
  // checkout has been completed.
  $query = db_select('webform_submitted_data', 'wsd')
    ->fields('wsd', array('sid'))
    ->condition('nid', $component['nid'], '=')
    ->condition('cid', $order_status_cid, '=')
    ->condition('data', 'Did not complete checkout', '<>');

  $sids = array();

  foreach ($query->execute() as $submission) {
    $sids[] = $submission->sid;
  }

  // Use the array of checked out submission ID's to grab only the checked out
  // product data.
  $product_results = array();
  if (!empty($sids)) {
    $co_query = db_select('webform_submitted_data', 'wsd')
      ->fields('wsd', array('no', 'data'))
      ->condition('cid', $component['cid'], '=')
      ->condition('nid', $component['nid'], '=')
      ->condition('sid', $sids, 'IN');

    foreach ($co_query->execute() as $co_result) {
      if ($co_result->no == 0) {
        continue;
      }
      else {
        if (array_key_exists($co_result->data, $product_results)) {
          $product_results[$co_result->data] += 1;
        }
        else {
          $product_results[$co_result->data] = 1;
        }
      }
    }
  }

  $rows = array();
  $count = 0;
  foreach ($product_results as $product => $qty) {
    $product_info = explode('_', $product, 2);
    $product_node = node_load($product_info[0]);
    $rows[$count] = array(t($product_node->model), $qty);
    $count++;
  }

  return $rows;
}

/**
 * Generate statistics for product_grid components, limited to checked out
 * webforms. This information is displayed under the "orders" tab of the
 * webform results.
 */
function _uc_webform_product_grid_orders($component, $order_status_cid) {

  // Build the rows of the table, including the first column.
  $rows = array(array());
  $header = array(array());
  $product_nids = array();
  foreach ($component['extra']['products'] as $product) {
    $nid_sku = explode('_', $product, 2);
    $product_nids[] = $nid_sku[0];
    $product_node = node_load($nid_sku[0]);

    // I use the nid_sku combination here as a key.
    $rows[$product] = array($product_node->title);
  }

  // Select the available option IDs and names for each product in the table.
  $query = db_select('uc_product_options', 'po')
    ->fields('po', array('oid'));
  $query->join('uc_attribute_options', 'ao', 'po.oid = ao.oid');
  $query->addField('ao', 'name');
  $query->condition('po.nid', $product_nids, 'IN');

  // Build the header row.
  $options = array();
  foreach ($query->execute() as $option) {
    // Use the oid as an array key to help when quering the
    // webform_submitted_data table (since it stores the oid instead of the
    // option name).
    $header[$option->oid] = $option->name;
  }

  // Get a list of all submission IDs for submissions with completed checkouts.
  $query = db_select('webform_submitted_data', 'wsd')
    ->fields('wsd', array('sid'))
    ->condition('nid', $component['nid'], '=')
    ->condition('cid', $order_status_cid, '=')
    ->condition('data', 'Did not complete checkout', '<>');

  $sids = array();
  foreach ($query->execute() as $submission) {
    $sids[] = $submission->sid;
  }

  // Use the array of checked out submission ID's to grab only the checked out
  // product data.
  $selections = array();
  if (!empty($sids)) {
    $co_query = db_select('webform_submitted_data', 'wsd')
      ->fields('wsd', array('no', 'data'));
    $co_query->addExpression('COUNT(data)', 'datacount');
    $co_query->condition('cid', $component['cid'], '=');
    $co_query->condition('nid', $component['nid'], '=');
    $co_query->condition('sid', $sids, 'IN');
    $co_query->groupBy('no');
    $co_query->groupBy('data');

    foreach ($co_query->execute() as $data) {
      $aid_oid = explode('_', $data->data, 2);
      // The information is stored in the DB as attribute-ID_option-ID. This
      // line removes the attribute ID and leaves the $selections key as the
      // option ID.
      if (isset($aid_oid[1])) {
        $selections[$data->no][$aid_oid[1]] = $data->datacount;
      }
    }
  }

  // Check to see if any completed orders include this component. Return NULL
  // if there aren't any.
  if (!empty($selections)) {
    // Build up the 2D array that will be used to create the table.
    foreach ($rows as $rkey => $rval) {
      if ($rkey != 0) {
        foreach ($header as $hkey => $hval) {
          if ($hkey != 0) {
            // $rkey = nid_sku.
            // $hkey = option ID.
            $rows[$rkey][] = isset($selections[$rkey][$hkey]) ? $selections[$rkey][$hkey] : 0;
          }
        }
      }
    }

    $output = theme('table', array(
      'header' => $header,
      'rows' => $rows,
      'attributes' => array(
        'class' => array(
          'webform-product-grid',
        ),
      ),
    ));

    return array(array(array('data' => $output, 'colspan' => 2)));
  }
  else {
    return NULL;
  }
}

/**
 * Output the content of the Analysis page.
 *
 * @see webform_results_analysis()
 */
function theme_uc_webform_product_analysis($variables) {
  $node = $variables['node'];

  $rows = array();
  $question_number = 0;
  $single = isset($analysis_component);

  $header = array(
    $single ? $analysis_component['name'] : t('Q'),
    array(
      'data' => $single ? '&nbsp' : t('Product Selection (completed checkouts)'),
      'colspan' => '10',
    ),
  );

  foreach ($variables['data'] as $cid => $row_data) {
    $question_number++;

    if (is_array($row_data)) {
      $row = array();
      if (!$single) {
        $row[] = array(
          'data' => '<strong>' . $question_number . '</strong>',
          'rowspan' => count($row_data) + 1,
          'valign' => 'top',
        );
        $row[] = array(
          'data' => '<strong>' . check_plain($node->webform['components'][$cid]['name']) . '</strong>',
          'colspan' => '10',
        );
      }
      $rows = array_merge($rows, array_merge(array($row), $row_data));
    }
  }

  $num_no_checkout = db_select('webform_submitted_data', 'wsd')
    ->condition('nid', $node->nid, '=')
    ->condition('data', 'Did not complete checkout', '=')
    ->countQuery()
    ->execute()
    ->fetchField();

  $total_submissions = db_select('webform_submitted_data', 'wsd')
    ->fields('wsd', array('DISTINCT sid'))
    ->condition('nid', $node->nid, '=')
    ->countQuery()
    ->execute()
    ->fetchField();

  $rows[] = array(array(
      'data' => '<strong>$</strong>',
      'rowspan' => 4,
      'valign' => 'top',
    ), array(
      'data' => '<strong>Checkout statistics</strong>',
      'colspan' => 10,
    ));
  $rows[] = array(t('Total completed checkouts'), $total_submissions - $num_no_checkout);
  $rows[] = array('<strong>' . t('Total webform submissions') . '</strong>', $total_submissions);

  return theme('table', array('header' => $header, 'rows' => $rows));
}

/****************************************
 * Form API
 */

/**
 * Adjustment for $form['#submit'][].
 */
function uc_webform_form_node_submit(&$form, &$form_state) {
}

/**
 * Form alter for add to cart.
 */
function uc_webform_form_uc_product_add_to_cart_form_alter(&$form, &$form_state) {
  if (isset($form['node']['#value']->webform_nid)) {
    // Replace standard add to cart with the webform corresponding to this
    // product.
  }
}

/**
 * Form alter.
 */
function uc_webform_form_alter(&$form, &$form_state, $form_id) {
  // THIS FAILS because $form['submitted']['order_status']['#default_value']
  // is not set.
  // Ensure that the order_status field cannot be modified with firebug, etc.
  if ($form_id == 'webform_component_form' || $form_id == 'webform_component_edit_form') {
    // Allow select components to change attributes/options selected for a
    // product, i.e. via sku.
    if ($form['type']['#value'] == 'select') {
      $form['extra']['uc_webform_options'] = array(
        '#title' => 'Product SKU ',
        '#description' => 'You can choose to set what options will be selected by safe_key|option ',
        '#type' => 'textarea',
        '#default_value' => variable_get('uc_webform_sku_' . $form['nid']['#value'] . '_' . $form['cid']['#value'], ''),
      );
      $form['#submit'][] = 'uc_webform_sku_submit';
    }
  }
}


/**
 * Adjustment for $form['#submit'][].
 */
function uc_webform_sku_submit(&$form, &$form_state) {
  if (isset($form_state['values']['extra']['uc_webform_options'])) {
    variable_set('uc_webform_sku_' . $form_state['values']['nid'] . '_' . $form_state['values']['cid'], $form_state['values']['extra']['uc_webform_options']);
  }
}

/**
 * Confirmation form before deleting products from a cart.
 *
 * When removing a single product from a cart alert the user that doing so will
 * also remove all other products associated with the same form.
 */
function uc_webform_submission_delete_products_form($form, &$form_state,$wf_nid) {

  $question = t('If you remove this product from your cart, all products associated with your form submission will also be removed. Are you sure you want to delete this product?');

  $destination = 'cart/'.$wf_nid;

  return confirm_form(array(), NULL, $destination, $question, t('Delete'), t('Cancel'));
}

/**
 * Adjustment for $form['#submit'][].
 */
function uc_webform_submission_delete_products_form_submit($form, &$form_state) {

  // Remove all items from the current webform submission from the cart.
  $cart_items = uc_cart_get_contents();
  $wf_nid = arg(2);
  foreach ($cart_items as $cart_item) {
    if (isset($cart_item->data['webform_sid']) && $cart_item->data['webform_nid'] == $wf_nid) {
      uc_cart_remove_item($cart_item->nid, $cart_item->cart_id, $cart_item->data);
    }
  }

  $form_state['redirect'] = 'cart';
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function uc_webform_form_uc_cart_view_form_alter(&$form, &$form_state) {
  $count = 0;
  while (isset($form['items'][$count])) {
    if (isset($form['items'][$count]['data']['#value'])) {
      $data = unserialize($form['items'][$count]['data']['#value']);
      if (isset($data['webform_ctype'])) {
        if (($data['webform_ctype'] == 'product_list') || ($data['webform_ctype'] == 'product') || ($data['webform_ctype'] == 'product_grid')) {
          // Check to see if the product was a mandatory field in the webform
          // submission.
          $component_query = db_select('webform_component', 'wc')
            ->fields('wc', array('mandatory', 'extra'))
            ->condition('nid', $data['webform_nid'], '=')
            ->condition('cid', $data['webform_cid'], '=');
          $component_info = $component_query->execute()->fetchAssoc();

          $component_info['extra'] = unserialize($component_info['extra']);

          // Users may not edit the quantity of a product from the cart.
          $form['items'][$count]['qty']['#disabled'] = TRUE;

          $data_query = db_select('webform_submitted_data', 'wsd')
            ->fields('wsd', array('data'))
            ->condition('nid', $data['webform_nid'], '=')
            ->condition('sid', $data['webform_sid'], '=')
            ->condition('cid', $data['webform_cid'], '=')
            ->condition('no', 0, '=');
          $data_result = $data_query->execute();
          $form['items'][$count]['qty']['#value'] = $data_result->fetchField();
          
          // Force the user to remove *all* webform-related products from the
          // cart if they want to remove *one* mandatory webform-related
          // product from the cart.
          //if ($component_info['mandatory'] == 1) {
            $form['items'][$count]['remove']['#type'] = 'item';
            $form['items'][$count]['remove']['#markup'] = l(t('Delete'), "cart/delete-form/".$data['webform_nid'], array(
                'query' => drupal_get_destination(),
            ));
          //}
          //Remove link for registration products
          $form['items'][$count]['desc']['#markup'] = strip_tags($form['items'][$count]['desc']['#markup']);
         
          if (($data['webform_ctype'] == 'product_list') || ($data['webform_ctype'] == 'product_grid')) {
            // Users may not edit the quantity of a product_list or
            // product_grid webform product.
            $form['items'][$count]['qty']['#disabled'] = TRUE;
            // If #value is not specified here, all products will be removed
            // if any product is removed.
            $form['items'][$count]['qty']['#value'] = 1;
          }
        }
      }
    }
    $count++;
  }
  
}

/**
 * Implements hook_theme_registry_alter().
 *
 * There is a good article about this here:
 * http://www.lullabot.com/articles/overriding-theme-functions-in-modules
 */
function uc_webform_theme_registry_alter(&$theme_registry) {
  if (!empty($theme_registry['webform_components_form'])) {
    $theme_registry['webform_components_form']['function'] = 'uc_webform_webform_components_form';
  }
}

/**
 * Override 'theme_webform_components_form($form)',
 * found in webform.components.inc.
 * This function will need to be updated everytime quicksketch makes a
 * corresponding change.
 *
 * Remove the 'Clone', 'Edit' and 'Delete' links from the hidden Order Status
 * component if
 * there are products included in the webform.
 */
function uc_webform_webform_components_form($variables) {
  $form = $variables['form'];

  $form['components']['#attached']['library'][] = array('webform', 'admin');

  drupal_add_tabledrag('webform-components', 'order', 'sibling', 'webform-weight');
  drupal_add_tabledrag('webform-components', 'match', 'parent', 'webform-pid', 'webform-pid', 'webform-cid');

  $node = $form['#node'];

  $header = array(t('Label'), t('Type'), t('Value'), t('Mandatory'), t('Weight'), array(
    'data' => t('Operations'),
    'colspan' => 3,
    ),
  );
  $rows = array();

  // Add a row containing form elements for a new item.
  unset($form['add']['name']['#title'], $form['add_type']['#description']);
  $form['add']['name']['#attributes']['rel'] = t('New component name');
  $form['add']['name']['#attributes']['class'] = array('webform-default-value');
  $form['add']['cid']['#attributes']['class'] = array('webform-cid');
  $form['add']['pid']['#attributes']['class'] = array('webform-pid');
  $form['add']['weight']['#attributes']['class'] = array('webform-weight');
  $row_data = array(
    drupal_render($form['add']['name']),
    drupal_render($form['add']['type']),
    '',
    drupal_render($form['add']['mandatory']),
    drupal_render($form['add']['cid']) . drupal_render($form['add']['pid']) . drupal_render($form['add']['weight']),
    array(
      'colspan' => 3,
      'data' => drupal_render($form['add']['add']),
    ),
  );
  $add_form = array(
    'data' => $row_data,
    'class' => array('draggable', 'webform-add-form'),
  );
  $form_rendered = FALSE;

  if (!empty($node->webform['components'])) {
    $component_tree = array();
    $page_count = 1;
    _webform_components_tree_build($node->webform['components'], $component_tree, 0, $page_count);
    $component_tree = _webform_components_tree_sort($component_tree);

    /**
     * Build the table rows.
     */
    function _webform_components_form_rows($node, $cid, $component, $level, &$form, &$rows, &$add_form) {
      // Create presentable values.
      if (drupal_strlen($component['value']) > 30) {
        $component['value'] = drupal_substr($component['value'], 0, 30);
        $component['value'] .= '...';
      }
      $component['value'] = check_plain($component['value']);

      // Remove individual titles from the mandatory and weight fields.
      unset($form['components'][$cid]['mandatory']['#title']);
      unset($form['components'][$cid]['pid']['#title']);
      unset($form['components'][$cid]['weight']['#title']);

      // Add special classes for weight and parent fields.
      $form['components'][$cid]['cid']['#attributes']['class'] = array('webform-cid');
      $form['components'][$cid]['pid']['#attributes']['class'] = array('webform-pid');
      $form['components'][$cid]['weight']['#attributes']['class'] = array('webform-weight');

      // Build indentation for this row.
      $indents = '';
      for ($n = 1; $n <= $level; $n++) {
        $indents .= '<div class="indentation">&nbsp;</div>';
      }

      // Add each component to a table row.
      // Alteration: I've added this check to remove the 'Edit', 'Clone',
      // 'Delete' links when necessary.
      $product_form = 0;
      foreach ($form['#node']->webform['components'] as $comp) {
        $product_form = (($comp['type'] == 'product') || ($comp['type'] == 'product_list') || ($comp['type'] == 'product_grid')) ? 1 : 0;
        if ($product_form == 1) {
          break;
        }
      }

      if (($product_form == 1) && ($component['form_key'] == 'order_status')) {
        // Remove the Edit, Clone and Delete links.
        $row_data = array(
          $indents . filter_xss($component['name']),
          t($component['type']),
          ($component['value'] == '') ? '-' : $component['value'],
          drupal_render($form['components'][$cid]['mandatory']),
          drupal_render($form['components'][$cid]['cid']) . drupal_render($form['components'][$cid]['pid']) . drupal_render($form['components'][$cid]['weight']),
          '-',
          '-',
          '-',
        );
      }
      else {
        // Here is the original code.
        $row_data = array(
          $indents . filter_xss($component['name']),
          t($component['type']),
          ($component['value'] == '') ? '-' : $component['value'],
          drupal_render($form['components'][$cid]['mandatory']),
          drupal_render($form['components'][$cid]['cid']) . drupal_render($form['components'][$cid]['pid']) . drupal_render($form['components'][$cid]['weight']),
          l(t('Edit'), 'node/' . $node->nid . '/webform/components/' . $cid, array('query' => drupal_get_destination())),
          l(t('Clone'), 'node/' . $node->nid . '/webform/components/' . $cid . '/clone', array('query' => drupal_get_destination())),
          l(t('Delete'), 'node/' . $node->nid . '/webform/components/' . $cid . '/delete', array('query' => drupal_get_destination())),
        );
      }
      $row_class = array('draggable');
      if (!webform_component_feature($component['type'], 'group')) {
        $row_class[] = 'tabledrag-leaf';
      }
      if ($component['type'] == 'pagebreak') {
        $row_class[] = 'tabledrag-root';
        $row_class[] = 'webform-pagebreak';
        $row_data[0] = array(
          'class' => array('webform-pagebreak'),
          'data' => $row_data[0],
        );
      }
      $rows[] = array(
        'data' => $row_data,
        'class' => $row_class,
      );
      if (isset($component['children']) && is_array($component['children'])) {
        foreach ($component['children'] as $cid => $component) {
          _webform_components_form_rows($node, $cid, $component, $level + 1, $form, $rows, $add_form);
        }
      }

      // Add the add form if this was the last edited component.
      if (isset($_GET['cid']) && $component['cid'] == $_GET['cid'] && $add_form) {
        $add_form['data'][0] = $indents . $add_form['data'][0];
        $rows[] = $add_form;
        $add_form = FALSE;
      }
    }
    foreach ($component_tree['children'] as $cid => $component) {
      _webform_components_form_rows($node, $cid, $component, 0, $form, $rows, $add_form);
    }
  }
  else {
    $rows[] = array(array(
      'data' => t('No Components, add a component below.'),
      'colspan' => 9,
      ),
    );
  }

  // Append the add form if not already printed.
  if ($add_form) {
    $rows[] = $add_form;
  }

  $output = '';
  $output .= theme('table', array(
    'header' => $header,
    'rows' => $rows,
    'attributes' => array('id' => 'webform-components'),
  ));
  $output .= drupal_render_children($form);
  return $output;
}

/**
 * Implements hook_uc_order().
 */
function uc_webform_uc_order($op, &$arg1, $arg2) {
  switch ($op) {
    case 'submit':
      foreach ($arg1->products as $product) {
        if (isset($product->data['webform_sid'])) {
          $message = l(t('View form submission'), 'node/' . $product->data['webform_nid'] . '/submission/' . $product->data['webform_sid']);

          // Add an admin comment that links to the webform submission.
          uc_order_comment_save($arg1->order_id, $arg1->uid, $message, 'admin');

//           break;
        }
      }
      break;

    case 'update':
      foreach ($arg1->products as $product) {
        if (isset($product->data['webform_sid'])) {
          // Update the hidden Order Status field of the webform submission.
          $status = t('Order #') . $arg1->order_id . ': ' . drupal_strtoupper($arg2);
          $webform_node = node_load($product->data['webform_nid']);
          $webform_submission = webform_menu_submission_load($product->data['webform_sid'], $product->data['webform_nid']);
          if (count($webform_node->webform['components'])) {
            foreach ($webform_node->webform['components'] as $component) {
              if ($component['form_key'] == 'order_status') {
                $webform_submission->data[$component['cid']]['value'][0] = $status;
                webform_submission_update($webform_node, $webform_submission);
              }
            }
          }
        }
      }
      break;
  }
}

/**
 * Implements hook_uc_cart_item().
 * NOTE THIS IS REMOVED in Ubercart beta 4.
 * See http://drupal.org/node/1424852#comment-5611230
 */
function uc_webform_uc_cart_item($op, &$item) {
  switch ($op) {
    case 'remove':
      $data = unserialize($item->data);
      if ($data['webform_ctype'] == 'product_list') {
        db_delete('webform_submitted_data')
          ->condition('nid', $data['webform_nid'], '=')
          ->condition('sid', $data['webform_sid'], '=')
          ->condition('data', $item->nid, '=')
          ->execute();
      }
      elseif ($data['webform_ctype'] == 'product') {
        db_delete('webform_submitted_data')
          ->condition('nid', $data['webform_nid'], '=')
          ->condition('sid', $data['webform_sid'], '=')
          ->condition('cid', $data['webform_cid'], '=')
          ->execute();
      }
      elseif ($data['webform_ctype'] == 'product_grid') {
        db_delete('webform_submitted_data')
          ->condition('nid', $data['webform_nid'], '=')
          ->condition('sid', $data['webform_sid'], '=')
          ->condition('cid', $data['webform_cid'], '=')
          ->execute();
      }
      break;
  }
}

/****************************************
 * Webform Hooks
 */

/**
 * Implementation of hook_webform_component_info().
 *
 * Define components available to Webform.
 *
 * @see http://drupal.org/node/886014
 */
function uc_webform_webform_component_info() {
  return array(
    'product_list' => array(
      'label' => t('Product list'),
      'description' => t('Add a list of products to your webform.'),
      'features' => array(
        'csv' => TRUE,
        'email' => TRUE,
        'required' => TRUE,
      ),
      'file' => 'components/product_list.inc',
    ),
    'product' => array(
      'label' => t('Product'),
      'description' => t('Add a single product to your webform.'),
      'features' => array(
        'csv' => TRUE,
        'email' => TRUE,
        'required' => TRUE,
      ),
      'file' => 'components/product.inc',
    ),
    'product_grid' => array(
      'label' => t('Product grid'),
      'description' => t('Add a grid of products that contain attributes. Users select options.'),
      'features' => array(
        'csv' => TRUE,
        'email' => TRUE,
        'required' => TRUE,
      ),
      'file' => 'components/product_grid.inc',
    ),
    'hidden_product' => array(
      'label' => t('Hidden product'),
      'description' => t('A product which is not visible to the user, but which will be added to the cart with the webform submission.'),
      'file' => 'components/hidden_product.inc',
      'features' => array(
        'required' => FALSE,
        'email_address' => TRUE,
        'email_name' => TRUE,
        'title_display' => FALSE,
      ),
    ),
  );
}

/**
 * Respond to a Webform submission being inserted -
 * hook_webform_submission_insert().
 */
function uc_webform_webform_submission_insert($node, $submission) {
  // If the latest webform submission has products in it, remove the
  // previous webform submission products and add the new ones. Otherwise,
  // allow the form to be submitted without incident.
  $remove = FALSE;
  foreach ($node->webform['components'] as $component) {
    if (($component['type'] == 'product_list') || ($component['type'] == 'product') || ($component['type'] == 'product_grid') || ($component['type'] == 'hidden_product')) {
      $remove = TRUE;
      break;
    }
  }

  // Believe that the stuff below can be removed thanks to
  // hook_webform_submission_delete() below.
  $remove_sid = FALSE;
  if ($remove) {
    // Kontrola : this feature is disabled on client request in order to allow for
    // multiple registrations on single order 04/29/2013
    // Remove items from previous webform submissions from the cart.
//     $cart_items = uc_cart_get_contents();
// 
//     foreach ($cart_items as $cart_item) {
//       if (isset($cart_item->data['webform_sid']) && ($cart_item->data['webform_sid'] != $submission->sid)) {
//         // Capture the submission ID of the previous submission so that we can
//         // clean up the webform tables next.
//         $remove_sid = (integer) $cart_item->data['webform_sid'];
// 
//         // Remove the item from the cart.
//         uc_cart_remove_item($cart_item->nid, $cart_item->cart_id, $cart_item->data);
//       }
//     }
// 
//     if ($remove_sid) {
//       // Remove the previous submissions from the webform tables.
//       db_delete('webform_submitted_data')
//         ->condition('sid', $remove_sid, '=')
//         ->execute();
// 
//       db_delete('webform_submissions')
//         ->condition('sid', $remove_sid, '=')
//         ->execute();
//     }

    // Add new items to the cart.
    foreach ($node->webform['components'] as $component) {
      if ($component['type'] == 'product_list') {
        if (array_key_exists($component['cid'], $submission->data)) {
          $key = $component['cid'];
          foreach ($submission->data[$key]['value'] as $val) {
            // This is all very dependent on the way that the product data is
            // stored in the webform_submitted_data table. Take a look there,
            // and also check out the uc_webform README.txt file.
            $product_info = explode('_', $val, 2);
            if (is_numeric($product_info[0])) {
              uc_cart_add_item($product_info[0], 1, array(
                'webform_sid' => $submission->sid,
                'webform_nid' => $node->nid,
                'webform_ctype' => 'product_list',
                'webform_cid' => $component['cid'],
              ));
            }
          }
        }
      }
      elseif ($component['type'] == 'product') {
        if (array_key_exists($component['cid'], $submission->data)) {
          $key = $component['cid'];
          // The quantity specified by the user.
          $qty = (integer) $submission->data[$key]['value'][0];

          $component_query = db_select('webform_component', 'wc')
            ->fields('wc', array('extra'))
            ->condition('cid', $component['cid'], '=')
            ->condition('nid', $node->nid, '=')
            ->execute();
          $component_data = unserialize($component_query->fetchField());

          // $product_info will contain an array with the product node ID and
          // the selected model (sku).
          $product_info = explode('_', $component_data['product'], 2);

          if ($qty > 0) {
            uc_cart_add_item($product_info[0], $qty, array(
              'webform_sid' => $submission->sid,
              'webform_nid' => $node->nid,
              'webform_ctype' => 'product',
              'webform_cid' => $component['cid'],
            ));
          }
        }
      }
      elseif ($component['type'] == 'hidden_product') {
        if (array_key_exists($component['cid'], $submission->data)) {
          $key = $component['cid'];

          // The quantity specified by the creator of the webform.
          $qty = (integer) $submission->data[$key]['value'][0];

          $component_query = db_select('webform_component', 'wc')
            ->fields('wc', array('extra'))
            ->condition('cid', $component['cid'], '=')
            ->condition('nid', $node->nid, '=')
            ->execute();
          $component_data = unserialize($component_query->fetchField());

          // $product_info will contain an array with the product node ID and
          // the selected model (sku).
          $product_info = explode('_', $component_data['hidden_product'], 2);

          if ($qty > 0) {
            uc_cart_add_item($product_info[0], $qty, array(
              'webform_sid' => $submission->sid,
              'webform_nid' => $node->nid,
              'webform_ctype' => 'hidden_product',
              'webform_cid' => $component['cid'],
            ));
          }
        }
      }
      elseif ($component['type'] == 'product_grid') {
        if (array_key_exists($component['cid'], $submission->data)) {
          $cid = $component['cid'];
          foreach ($submission->data[$cid]['value'] as $key => $prod_option) {
            // This is all very dependent on the way that the product data is
            // stored in the webform_submitted_data table. Take a look there,
            // and also check out the uc_webform README.txt file.
            if ($prod_option) {
              $product_info = explode('_', $key, 2);
              // The $prod_option variable actually contains both the attribute
              // ID and the option ID in the form of a string: aid_oid.
              $option_info = explode('_', $prod_option, 2);
              uc_cart_add_item($product_info[0], 1, array(
                'attributes' => array(
                  $option_info[0] => $option_info[1],
                ),
                'webform_sid' => $submission->sid,
                'webform_nid' => $node->nid,
                'webform_ctype' => 'product_grid',
                'webform_cid' => $component['cid'],
              )
              );
            }
          }
        }
      }
    }
  }
}

/**
 * Implements hook_webform_submission_delete().
 */
function uc_webform_webform_submission_delete($node, $submission) {
  db_delete('uc_webform_submission')
    ->condition('sid', $submission->sid, '=')
      ->execute();
}

/**
 * Implements hook_webform_submission_load(&$submissions).
 */
function uc_webform_webform_submission_load(&$submissions) {
  foreach ($submissions as $delta => $submission) {
    $query = db_select('uc_webform_submission', 'ucs')
      ->fields('ucs')
      ->condition('sid', $submission->sid, '=')
      ->execute()
      ->fetchAssoc();
    if ($query) {
      $submissions[$delta] = (object) array_merge((array) $submission, $query);
    }
  }
}

/**
 * Implements hook_webform_submission_render_alter().
 */
function uc_webform_webform_submission_render_alter(&$renderable) {
  if (!isset($renderable['#submission']->order_id)) {
    return;
  }
}

/**
 * Implements hook_webform_component_insert().
 * http://api.lullabot.com/hook_webform_component_insert/7
 */
function uc_webform_webform_component_insert($component) {
  if (($component['type'] == 'product') || ($component['type'] == 'product_list') || ($component['type'] == 'product_grid') || ($component['type'] == 'hidden_product')) {
    // Check to see whether the hidden field already exists.
    $result = db_select('webform_component', 'wc')
      ->fields('wc', array('cid'))
      ->condition('nid', $component['nid'], '=')
      ->condition('form_key', 'order_status', '=')
      ->execute()
      ->fetchField();

    $extra = array('conditional_operator' => '=');
    if (!$result) {
      // Insert a hidden field into the webform.
      $order_status_component = array(
        'nid'       => $component['nid'],
        'pid'       => $component['pid'],
        'form_key'  => 'order_status',
        'name'      => 'Order Status',
        'type'      => 'hidden',
        'value'     => 'Did not complete checkout',
        'extra'     => $extra,
        'mandatory' => 0,
        'weight'    => -100,
      );
      webform_component_insert($order_status_component);
    }
  }
}

/**
 * Respond to a Webform component being updated in the database.
 */
function uc_webform_webform_component_update($component) {
  if (($component['type'] == 'product') || ($component['type'] == 'product_list') || ($component['type'] == 'product_grid') || ($component['type'] == 'hidden_product')) {

    // We need to check to see whether the hidden field already exists.
    // We also need to find the max component id in the webform.
    $query = db_select('webform_component', 'wc')
      ->fields('wc', array('cid', 'form_key'))
      ->condition('wc.nid', $component['nid'], '=');

    $components_info['cids'] = array();
    $components_info['form_keys'] = array();
    foreach ($query->execute() as $result) {
      array_push($components_info['cids'], $result->cid);
      array_push($components_info['form_keys'], $result->form_key);
    }

    $extra = array('conditional_operator' => '=');
    if (!in_array('order_status', $components_info['form_keys'])) {
      // Insert a hidden field into the webform.
      $order_status_component = array(
        nid => $component['nid'],
        form_key => 'order_status',
        name => 'Order Status',
        type => 'hidden',
        value => 'Did not complete checkout',
        extra => $extra,
        mandatory => 0,
        weight => -100,
      );
      webform_component_insert($order_status_component);
    }
  }
}