<?php
// $Id: user_relationships_actions.inc,v 1.14.4.22 2009-05-07 20:37:19 alexk Exp $

/**
 * User Relationships Actions
 */


/**
 * Validate the submitted relationship type
 */
function user_relationships_type_edit_validate($form_id, &$form_values) {
  if (
    ($form_values['action'] == 'edit' &&
      db_result(db_query(
        "SELECT name FROM {user_relationship_types}
         WHERE LOWER(name) = LOWER('%s')
           AND rtid != %d",
        $form_values['name'], $form_values['rtid'])
      )
    ) ||
    ($form_values['action'] == 'add' &&
      db_result(db_query("SELECT name FROM {user_relationship_types} WHERE LOWER(name) = LOWER('%s')", $form_values['name']))
    )
  ) {
    form_set_error('name', t('%name has already been used.', array('%name' => $form_values['name'])));
  }

  $expire = $form_values['expires_val'];
  if (!is_numeric($expire) || (int)$expire < 0) {
    form_set_error('expires_val', t('Expiration period must be an integer greater than or equal to 0.'));
  }
}

/***
 * Generic settings validation.
 */
function user_relationships_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']);
    }
  }
}

/**
 * Process the relationship edit page form submission.
 */
function user_relationships_type_edit_submit($form_id, &$form_values) {
  if ($form_values['action'] == 'add') {
    $form_values['rtid'] = db_next_id('{user_relationship_types}_id');
    db_query(
      "INSERT INTO {user_relationship_types} (rtid, name, plural_name, is_oneway, requires_approval, expires_val) VALUES
       (%d, '%s', '%s', %d, %d, %d)",
      $form_values['rtid'],
      $form_values['name'],
      $form_values['plural_name'],
      $form_values['is_oneway'],
      $form_values['requires_approval'],
      $form_values['expires_val']
    );

    $relationship_type = user_relationships_type_load($form_values['rtid']);
    _user_relationships_invoke('insert', $relationship_type, 'type');

    drupal_set_message(t('Relationship %name has been added.', array('%name' => $form_values['name'])));
    watchdog(
      'u_relationship',
      t('User Relationships form: relationship %name added.', array('%name' => $form_values['name'])),
      WATCHDOG_NOTICE,
      l(t('view'), 'admin/user/user_relationship/types')
    );
  }
  else {
    db_query(
      "UPDATE {user_relationship_types}
       SET name = '%s', plural_name = '%s', is_oneway = %d, requires_approval = %d, expires_val = %d
       WHERE rtid = %d",
      $form_values['name'],
      $form_values['plural_name'],
      $form_values['is_oneway'],
      $form_values['requires_approval'],
      $form_values['expires_val'],
      $form_values['rtid']
    );

    _user_relationships_invoke('update', $form_values['relationship_type'], 'type');

    drupal_set_message(t('Relationship %name has been updated.', array('%name' => $form_values['name'])));
    watchdog(
      'u_relationship',
      t('User Relationships form: relationship %name updated.', array('%name' => $form_values['name'])),
      WATCHDOG_NOTICE,
      l(t('view'), 'admin/user/relationships/types')
    );
  }

  return 'admin/user/relationships';
}


/**
 * Process relationship delete form submission.
 */
function user_relationships_type_delete_submit($form_id, &$form_values) {
  $rtid = $form_values['rtid'];
  $relationship_type = user_relationships_type_load(array('rtid' => $rtid));

  db_query("DELETE FROM {user_relationship_types} WHERE rtid = %d", $rtid);
  db_query("DELETE FROM {user_relationships} WHERE rtid = %d", $rtid);

  _user_relationships_invoke('delete', $relationship_type, 'type');

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

  return 'admin/user/relationships';
}


/**
 * Validate relationship request.
 */
function user_relationships_request_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('requester_id' => $requester->uid, 'requestee_id' => $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_get_message('too_many_relationships'), 'error');
      drupal_goto();
    }
    else if ($current_relationships[$form_values['rtid']]) {
      $message_name = $current_relationships[$form_values['rtid']]->approved ? 'existing_relationship' : 'existing_request';
      form_set_error('rtid', user_relationships_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_get_message('not_accepting_requests'));
    drupal_goto();
  }
}

/**
 * Process relationship request.
 */
function user_relationships_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 (!$relationship) {
    return;
  }
   else if ($relationship === FALSE) {
    drupal_set_message(user_relationships_get_message('unknown_error', $relationship));
  }

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

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

  return 'user';
}


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

  $relationship = $form_values['relationship'];
  $requester    = $relationship->requester;
  $requestee    = $relationship->requestee;

  $viewing_own_account = ($user->uid == $requestee->uid);

  switch ($form_values['action']) {
  case 'approve':
    if (!user_access('maintain relationships') || (!user_access('administer user relationships') && $user->uid != $relationship->requestee_id)) {
      drupal_access_denied();
      exit();
    }
    $updated = $relationship;
    $updated->approved = TRUE;
    user_relationships_update_relationship($relationship, $updated, $form_values['action']);
    drupal_set_message(user_relationships_get_message('accepted', $relationship));
    break;

  case 'cancel':
    if (!user_access('maintain relationships') || (!user_access('administer user relationships') && $user->uid != $relationship->requester_id)) {
      drupal_access_denied();
      exit();
    }
    user_relationships_delete_relationship($relationship, $user, $form_values['action']);
    drupal_set_message(user_relationships_get_message($form_values['action'], $relationship));
    break;

  case 'disapprove':
    if (!user_access('maintain relationships') || (!user_access('administer user relationships') && $user->uid != $relationship->requestee_id)) {
      drupal_access_denied();
      exit();
    }
    user_relationships_delete_relationship($relationship, $user, $form_values['action']);
    drupal_set_message(user_relationships_get_message($form_values['action'], $relationship));
    break;

  case 'ban':

    break;

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

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


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

  $relationship = $form_values['relationship'];

  if (!user_access('maintain relationships') || (!user_access('administer user relationships') && $user->uid != $relationship->requester_id && $user->uid != $relationship->requestee_id)) {
    drupal_access_denied();
    exit();
  }

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

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