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<?php

// reg_redirect_help function
function reg_redirect_help( $section ) {
    switch($section){
    case 'admin/modules#description':
      return t('reg redirect module v0.01');
    }
}

/**
 * Implementation of hook_perm().
 */
function reg_redirect_perm() {
  return array('reg_redirect');
}

/**
 * Implementation of hook_access().
 */
function reg_redirect_access($op, $node) {
  if (user_access('reg_redirect')) {
    return TRUE;
  }
}

/**
 * Implementation of hook_menu().
 */
function reg_redirect_menu($may_cache) {
  $items = array();
  $items[] = array(
    'path' => 'register_redirect', 'title' => t('RegisterRedirect'),
    'callback' => 'register_redirect_handle',
    'access' => user_access('reg_redirect')
  );
  return $items;
}

// this method changes the role of the user from pre-auth to auth so that
// we can have a fully authenticated user. we also do this
// so that only the pre-auth user can access this module and the only time
// that the user is in the pre-auth state is right after they gave registered.

function reg_redirect_roles_alter(&$user) {
  $preauth_id = logintoboggan_validating_id();
  $in_pre_auth_role = in_array($preauth_id, array_keys($user->roles));
  if ($user->uid && $in_pre_auth_role) {
    unset($user->roles[$preauth_id]);
    $roles = user_roles(1);
    $user->roles[DRUPAL_AUTHENTICATED_RID] = $roles[DRUPAL_AUTHENTICATED_RID];
    user_save($user,array('roles' => $user->roles));
    cache_clear_all('menu:'. $user->uid, TRUE);
  }
}


/*
this is the meat of the register_redirect

basically what happens is:

we check to see if the user wants to sign up for a free or paid membership
if free, then we redirect them to their profile
if paid we redirect them to the membership page where they can choose to sign up
      
*/

function register_redirect_handle() {
  if (!module_exist('civicrm')) return;

  global $user,$base_url;
  civicrm_initialize(TRUE);

  $prop_name = variable_get('reg_redirect_custom_field', '');
  // by default we will redirect to the user page
  // this is changed below if the user has chosen
  // to become a paid member
  $reg_successful_msg = variable_get('reg_redirect_free_successful_msg','');
  $redirect_url = variable_get('reg_redirect_free_mem_url', '');
  $newsletter_signup_fieldname = variable_get('newsletter_signup_fieldname','');

  $return_properties = array($prop_name => 1, $newsletter_signup_fieldname => 1);
  $lookup_params = array(email => $user->mail);
  list($cividata,$dontCare) = crm_contact_search( $lookup_params, $return_properties );
  
  if ( ! is_a( $cividata, 'CRM_Core_Error' ) ) {
      if(count($cividata) > 1){
        // setting the error here we really 
        drupal_set_message(t("more than one member with the email: ").$user->mail,'error');
      }
      // here we are interested in the only element in the array returned by
      // crm_contact_search
      $cividata = array_shift($cividata);
      $wants_paid_membership = $cividata[$prop_name];
      if($wants_paid_membership){
        $reg_successful_msg = variable_get('reg_redirect_paid_successful_msg','');
        $redirect_url = variable_get('reg_redirect_paid_mem_url', 'user');
      }

      // if the newsletter sign up field is present and positive
      // then we add the user to the default newsletter group
      if($newsletter_signup_fieldname && isset($cividata[$newsletter_signup_fieldname]) && $cividata[$newsletter_signup_fieldname]){
        newsletter_add_user_to_list($user->mail);
      }
      
      // set the user to the authenticated user role
      reg_redirect_roles_alter($user);
      // clear the message queue
      // by caling the get_messages function
      // ridiculous!
      drupal_get_messages();
      drupal_set_message($reg_successful_msg);
      drupal_goto($redirect_url);
  } else {
      die( t("Contact data not found").' : '.$user->mail);
  }
  
}

function reg_redirect_settings() {

  $form['reg_redirect_heading'] = array(
    '#type' => 'markup',
    '#value' => t('
                  <p><b><h2>Register Redirect Settings</h2><b><hr></p>
                  '),
  );

  $form['reg_redirect_paid_mem_url'] = array(
    '#type' => 'textfield',
    '#title' => t('Paid Membership Redirect URL (defaults to "user")'),
    '#default_value' => variable_get('reg_redirect_paid_mem_url', ''),
    '#size' => 20,
    '#maxlength' => 255,
    '#description' => t('This is the url of the civicontribute page that is being used to accommodate membership sign up.
                         A user will be redirected to this URL if they chose to become a paid member'),
  );

  $form['reg_redirect_free_mem_url'] = array(
    '#type' => 'textfield',
    '#title' => t('Free Membership Redirect URL (defaults to "user")'),
    '#default_value' => variable_get('reg_redirect_free_mem_url', ''),
    '#size' => 20,
    '#maxlength' => 255,
    '#description' => t('This is the url to which a user is redirected if they chose to sign up as a free member only'),
  );

  $form['reg_redirect_paid_successful_msg'] = array(
    '#type' => 'textarea',
    '#title' => t('Successful Registration Message (Paid)'),
    '#default_value' => variable_get('reg_redirect_paid_successful_msg', ''),
    '#size' => 20,
    '#maxlength' => 255,
    '#description' => t('This is the message that will be displayed to the user after they have successfully
                        registered and they chose to also sign up for a membership'),
  );

  $form['reg_redirect_free_successful_msg'] = array(
    '#type' => 'textarea',
    '#title' => t('Successful Registration Message (Free)'),
    '#default_value' => variable_get('reg_redirect_free_successful_msg', ''),
    '#size' => 20,
    '#maxlength' => 255,
    '#description' => t('This is the message that will be displayed to the user after they have successfully
                        registered and they did not choose to sign up for a membership'),
  );

  $form['reg_redirect_custom_field'] = array(
    '#type' => 'textfield',
    '#title' => t('CiviCrm Custom Field Name'),
    '#default_value' => variable_get('reg_redirect_custom_field', ''),
    '#size' => 20,
    '#maxlength' => 255,
    '#description' => t('This is the name of the custom data field that is being used as the flag
                        to indicate whether or not the user chose a paid membership when they signed
                        up for a web account.  for example: custom_23 '),
  );

  return $form;
} 


?>