<?php
// $Id: user_relationships_ui.actions.inc,v 1.1.4.3 2008-04-21 00:53:58 sprsquish Exp $

/**
 * User Relationships Actions
 */


/***
 * Generic settings validation.
 */
function user_relationships_ui_setting_validation($element, $validations) {
  foreach ($validations as $validation => $info) {
    $arguments = array($element['#value']);
    if (isset($info['valid_options'])) {
      $arguments[] = $info['valid_options'];
    }

    if (!call_user_func_array($validation, $arguments)) {
      form_set_error($element['#name'], $info['msg']);
    }
  }
}


/**
 * Validate the submitted relationship type
 */
function user_relationships_ui_type_edit_form_validate($form_id, &$form_values) {
  $rtype = (object)$form_values;
  // find a relationship type with the name we're trying to save
  // if it's an update action check to see that the rtypes match
  // otherwise it's just invalid
  if (
    ($found_rt = user_relationships_type_load(array('name' => $rtype->name))) &&
    ($form_values['action'] == 'update' ? $found_rt->rtid != $rtype->rtid : TRUE)
  ) {
    form_set_error('name', t('%name has already been used.', array('%name' => $form_values['name'])));
  }

  if (!is_numeric($rtype->expires_val) || (int)$rtype->expires_val < 0) {
    form_set_error('expires_val', t('Expiration period must be an integer greater than or equal to 0.'));
  }
}


/**
 * Process the relationship edit page form submission.
 */
function user_relationships_ui_type_edit_form_submit($form_id, &$form_values) {
  $rtype = (object)$form_values;
  $action = $form_values['action'] == 'add' ? t('added') : t('updated');

  if (user_relationships_type_save($rtype)) {
    drupal_set_message(t('Relationship %name has been @action.', array('%name' => $rtype->name, '@action' => $action)));
    watchdog(
      'u_relationship',
      t('User Relationships form: relationship %name @action.', array('%name' => $rtype->name, '@action' => $action)),
      WATCHDOG_NOTICE,
      l(t('view'), 'admin/user/user_relationship/types')
    );
  }
  else {
    drupal_set_message(
      t('Relationship %name has not been @action. There is a problem, please contact the site admin',
      array('%name' => $rtype->name, '@action' => $action))
    );
  }

  return 'admin/user/relationships';
}


/**
 * Process relationship delete form submission.
 */
function user_relationships_ui_type_delete_form_submit($form_id, &$form_values) {
  $rtid = $form_values['rtid'];

  $rtype = user_relationships_type_load($rtid);

  user_relationships_type_delete($rtid);

  drupal_set_message(t('Relationship %name has been deleted.', array('%name' => $rtype->name)));
  watchdog('u_relationship', t('User Relationships form: relationship %name deleted.', array('%name' => $rtype->name)), WATCHDOG_NOTICE);

  return 'admin/user/relationships';
}


/**
 * Validate relationship request.
 */
function user_relationships_ui_request_form_validate($form_id, &$form_values) {
  $requester = $form_values['requester'];
  $requestee = $form_values['requestee'];

  if (user_access('can have relationship', $requestee)) {
    $current_relationships = user_relationships_load(array('between' => array($requester->uid, $requestee->uid)));

    if (!db_result(db_query(
      "SELECT COUNT(*) FROM {user_relationship_types}" . ($current_relationships ? " WHERE rtid NOT IN (%s) GROUP BY name ORDER BY name" : ''),
      implode(',', array_keys($current_relationships))
    ))) {
      drupal_set_message(user_relationships_ui_get_message('too_many_relationships'), 'error');
      drupal_goto();
    }
    else if ($current_relationships[$form_values['rtid']]) {
      $message_name = $current_relationships[$form_values['rtid']]->approved ? 'exisitng_relationship' : 'existing_request';
      form_set_error('rtid', user_relationships_ui_get_message($message_name, array(
        '%requester'                => $requester->name,
        '%requestee'                => $requestee->name,
        '%relationship_name'        => $$current_relationships[$form_values['rtid']]->name,
        '%relationship_plural_name' => $$current_relationships[$form_values['rtid']]->plural_name
      )));
    }
  }
  else {
    drupal_set_message(user_relationships_ui_get_message('not_accepting_requests'));
    drupal_goto();
  }
}

/**
 * Process relationship request.
 */
function user_relationships_ui_request_submit($form_id, &$form_values) {
  $requester          = $form_values['requester'];
  $requestee          = $form_values['requestee'];
  $relationship_type  = user_relationships_type_load(array('rtid' => $form_values['rtid']));

  $relationship = user_relationships_request_relationship($requester, $requestee, $relationship_type);

  if ($relationship === FALSE) {
    drupal_set_message(user_relationships_ui_get_message('unknown_error', $relationship));
  }

  $relationship->requester = $requester;
  $relationship->requestee = $requestee;
  $relationship->type = $relationship_type;

  drupal_set_message(user_relationships_ui_get_message(($relationship->approved ? 'pre_approved' : 'submitted'), $relationship));

  return 'user';
}


/**
 * Approve, Disapprove, or Cancel a relationship request
 */
function user_relationships_ui_pending_requested_submit($form_id, &$form_values) {
  global $user;

  $relationship = user_relationships_load($form_values['rid'], array('include_user_info' => TRUE));
  $requester    = $relationship->requester;
  $requestee    = $relationship->requestee;

  switch ($form_values['action']) {
  case 'approve':
    $relationship->approved = TRUE;
    user_relationships_save_relationship($relationship, $form_values['action']);
    drupal_set_message(user_relationships_ui_get_message('accepted', $relationship));
    break;

  case 'cancel':
  case 'disapprove':
    user_relationships_delete_relationship($relationship, $user, $form_values['action']);
    drupal_set_message(user_relationships_ui_get_message($form_values['action'], $relationship));
    break;

  default:
    drupal_set_message(user_relationships_ui_get_message('default'));
  }

  return "user/{$form_values['viewed_id']}/relationships/requests";
}


/**
 * Remove a relationship
 */
function user_relationships_ui_remove_submit($form_id, &$form_values) {
  global $user;

  $relationship = user_relationships_load($form_values['rid'], array('include_user_info' => TRUE));
  $requester    = $relationship->requester;
  $requestee    = $relationship->requestee;

  user_relationships_delete_relationship($relationship, $user);
  drupal_set_message(user_relationships_ui_get_message('removed', $relationship));

  return "user/{$form_values['viewed_id']}/relationships";
}