<?php
// $Id: adsense.install,v 1.10.2.5 2009/03/31 14:41:01 jcnventura Exp $

/**
 * @file
 * Install file of the adsense module
 */

/**
 * Implementation of hook_install().
 */
function adsense_install() {
  drupal_set_message(st("AdSense settings are available under !link",
    array( '!link' => l(st('Administer > Site configuration > AdSense'),  'admin/settings/adsense' ) )
  ));
}

/**
 * Implementation of hook_uninstall().
 */
function adsense_uninstall() {
  variable_del('adsense_access_pages');
  variable_del('adsense_basic_id');
  variable_del('adsense_disable');
  variable_del('adsense_id_module');
  variable_del('adsense_placeholder');
  variable_del('adsense_placeholder_text');
  variable_del('adsense_section_targeting');
  variable_del('adsense_test_mode');
  variable_del('adsense_visibility');

  $settings = db_query("SELECT name FROM {variable} WHERE name LIKE 'adsense\_ad\_channel\_%'");
  while ($variable = db_fetch_object($settings)) {
    variable_del($variable->name);
  }
}

/**
 * Drupal 5.x to 6.x update.
 */
function adsense_update_6000() {
  // Convert old ad blocks to the new per-ad-gen blocks
  // New block will have the original number as the name, so that the block input tag works
  $oldsearch = 0;
  $managed = 0;
  $oldcode = 0;
  $pos = drupal_strlen('adsense_ad_block_');
  $settings = db_query("SELECT name FROM {variable} WHERE name LIKE 'adsense\_ad\_block\_%'");
  while ($variable = db_fetch_object($settings)) {
    $data = explode(':', variable_get($variable->name, ''));
    if ($data[0] == 'Search Box') {
      // Block is an old search block
      // Store the name and the channel in the new block
      $newdata = implode(':', array(drupal_substr($variable->name, $pos), $data[2]));
      variable_set('adsense_search_ad_block_'. $oldsearch++, $newdata);
    }
    elseif (!empty($data[3])) {
      // Slot is defined, so it is a managed ad
      // Store the name, format and slot in the new block
      $newdata = implode(':', array(drupal_substr($variable->name, $pos), $data[0], $data[3]));
      variable_set('adsense_managed_ad_block_'. $managed++, $newdata);
    }
    else {
      // Slot is an old code ad
      // Store the name, format, group and channel in the new block
      $newdata = implode(':', array(drupal_substr($variable->name, $pos), $data[0], $data[1], $data[2]));
      variable_set('adsense_oldcode_ad_block_'. $oldcode++, $newdata);
    }
    // Raise the number of blocks in a type, if necessary
    variable_set('adsense_search_number_blocks', max(variable_get('adsense_search_number_blocks', 2), $oldsearch));
    variable_set('adsense_managed_number_blocks', max(variable_get('adsense_managed_number_blocks', 3), $managed));
    variable_set('adsense_oldcode_number_blocks', max(variable_get('adsense_oldcode_number_blocks', 3), $oldcode));

    variable_del($variable->name);
  }

  $ret = array();
  return $ret;
}