<?php
// $Id$

/**
 * Implementation of hook_update_1().  This is a placeholder in case table
 * installation is ever necessary for the module.
 */
function logintoboggan_update_1() {
  return array();
}

/**
 * Implementation of hook_update_2()
 */
function logintoboggan_update_2() {
  // get all serialized user data.
  $users = db_query('SELECT uid, data FROM {users}');
  while($user = db_fetch_object($users)) {
    $data = unserialize($user->data);
    $updated_data = array();
    // Extract conf_mail and conf_pass from the user's data
    if (is_array($data)) {
      foreach($data as $key => $value) {
        if (!in_array($key, array('conf_mail', 'conf_pass'))) {
          $updated_data[$key] = $value;
        }
      }
      // reinsert the cleaned data for the user
      $updated_data = serialize($updated_data);
      db_query("UPDATE {users} SET data = '%s' WHERE uid = %d", $updated_data, $user->uid);
    }
  }

  drupal_set_message(t('logintoboggan cleaning of user data successful'));
  return array();
}

/**
 * Implementation of hook_update_3()
 */
function logintoboggan_update_3() {

  if (variable_get('reg_passwd_set', 0) == 2) {
    variable_set('reg_passwd_set', 1);
  }
  return array();
}

/**
 * Implementation of hook_update_4()
 */
function logintoboggan_update_4() {

  if (variable_get('toboggan_role', 2) == 1) {
    variable_set('toboggan_role', 2);
    drupal_set_message(t('Your previous setting for the logintoboggan pre-auth role was the anonymous user role, which is no longer allowed.  The pre-auth role has now been set to the authenticated user role for your site. <em>Because of this change, all unvalidated users on your site now have authenticated user permissions!</em> If you wish to retain the previous functionality, create a new user role with the same access permissions as the anonymous user, and set the logintoboggan pre-auth role to the newly created role. You will also need to manually add any previously unvalidated users to the newly created pre-auth role.'), 'error');
  }
  return array();
}

/**
 * Implementation of hook_update_5()
 */
function logintoboggan_update_5() {
  // get all profile fields.
  $fields = db_query('SELECT fid, name FROM {profile_fields}');
  while($field = db_fetch_object($fields)) {
    $fids[$field->fid] = $field->name;
    $where[] = "data LIKE '%%%s%%'";
  }
  if (isset($fids)) {
    // get all users with any profile fields in their user data.
    $users = db_query('SELECT uid, data FROM {users} WHERE '. implode(' OR ', $where), $fids);
    while($user = db_fetch_object($users)) {
      $data = unserialize($user->data);
      $updated_data = array();
      // Extract any profile values from the user's data.
      if (is_array($data)) {
        foreach($data as $key => $value) {
          if (!in_array($key, $fids)) {
            $updated_data[$key] = $value;
          }
          elseif ($value) {
            // reinsert profile data into profile_values table.
            db_query("INSERT INTO {profile_values} VALUES (%d, %d, '%s')", array_search($key, $fids), $user->uid, $value);
          }
        }
        // reinsert the cleaned data for the user
        $updated_data = serialize($updated_data);
        db_query("UPDATE {users} SET data = '%s' WHERE uid = %d", $updated_data, $user->uid);
      }
    }
  }

  drupal_set_message(t('logintoboggan cleaning of user/profile data successful'));
  return array();
}

/**
 * Implementation of hook_update_6()
 */
function logintoboggan_update_6() {
  variable_del('toboggan_display_logged_in');
  return array();
}

/**
 * 6.x database changes.
 */

// Better variable names.
function logintoboggan_update_6000() {
  // This one no longer exists.
  variable_del('reg_passwd_set');

  // Build defaults for existing variables.
  $defaults = array(
    'toboggan_block_type' => 0,
    'toboggan_block_msg' => '',
    'login_with_mail' => 0,
    'email_reg_confirm' => 0,
    'toboggan_role' => DRUPAL_AUTHENTICATED_RID,
    'toboggan_redirect_on_register' => '',
    'toboggan_redirect_on_confirm' => '',
    'login_successful' => 0,
    'toboggan_min_pass_length' => 0,
  );

  // Rename poorly named variables.  Note that we're not renaming
  // 'logintoboggan_immediate_login_on_register' here, as that variable
  // name is ok.
  $variables = array(
    'toboggan_block_type' => 'logintoboggan_login_block_type',
    'toboggan_block_msg' => 'logintoboggan_login_block_message',
    'login_with_mail' => 'logintoboggan_login_with_email',
    'email_reg_confirm' => 'logintoboggan_confirm_email_at_registration',
    'toboggan_role' => 'logintoboggan_pre_auth_role',
    'toboggan_redirect_on_register' => 'logintoboggan_redirect_on_register',
    'toboggan_redirect_on_confirm' => 'logintoboggan_redirect_on_confirm',
    'login_successful' => 'logintoboggan_login_successful_message',
    'toboggan_min_pass_length' => 'logintoboggan_minimum_password_length',
  );

  foreach ($variables as $old_name => $new_name) {
    $value = variable_get($old_name, $defaults[$old_name]);
    variable_set($new_name, $value);
  	variable_del($old_name);
  }

  return array();
}

/**
 * Implementation of hook_uninstall().
 */
function logintoboggan_uninstall() {
  $variables = array(
    'toboggan_block_type',
    'toboggan_block_msg',
    'login_with_mail',
    'email_reg_confirm',
    'reg_passwd_set',
    'toboggan_role',
    'toboggan_redirect_on_register',
    'toboggan_redirect_on_confirm',
    'login_successful',
    'toboggan_min_pass_length',
    'logintoboggan_immediate_login',
  );
  foreach ($variables as $variable) {
  	variable_del($variable);
  }
}