<?php
// $Id: manipulate.inc,v 1.1.2.1 2009-09-02 13:36:15 ezrag Exp $

/**
 * @file manipulate.inc
 * User queues manipulation pages and handlers.
 */


/**
 * Add a subqueue to the supplied account under the supplied queue.
 */
function smartqueue_users_subqueue_add($account, $queue) {
  drupal_set_title(t("Add a subqueue to !user's !queue", array('!user' => $account->name, '!queue' => $queue->title)));
  
  return drupal_get_form('smartqueue_users_subqueue_edit_form', $account, $queue);
}

/**
 * Delete the supplied subqueue from the supplied queue that belongs
 * to the supplied user.
 */
function smartqueue_users_subqueue_remove($account, $queue, $subqueue) {
  _smartqueue_users_sanity_check($account, $queue, $subqueue);
  
  return drupal_get_form('smartqueue_users_subqueue_remove_form', $account, $subqueue);
}

/**
 * Edit the supplied subqueue in the supplied queue that belongs to
 * the supplied user.
 */
function smartqueue_users_subqueue_edit($account, $queue, $subqueue) {
  _smartqueue_users_sanity_check($account, $queue, $subqueue);
  
  drupal_set_title(t("Edit subqueue !subqueue", array('!subqueue' => $subqueue->title)));
  
  return drupal_get_form('smartqueue_users_subqueue_edit_form', $account, $queue, $subqueue);
}

/**
 * Form to add or edit a new subqueue.
 */
function smartqueue_users_subqueue_edit_form(&$form_state, $account, $queue, $subqueue = NULL) {
  $form = array();
  
  $form['uid'] = array(
    '#type' => 'value',
    '#value' => $account->uid,
  );
  $form['qid'] = array(
    '#type' => 'value',
    '#value' => $queue->qid,
  );
  if (!empty($subqueue)) {
    $form['sqid'] = array(
      '#type' => 'value',
      '#value' => $subqueue->sqid,
    );
  }
    
  $form['subqueue_title'] = array(
    '#type' => 'textfield',
    '#title' => t('Title'),
    '#description' => t('The title of the new subqueue.'),
    '#default_value' => (!empty($subqueue->title) ? $subqueue->title : ''),
    '#required' => TRUE,
  );
  
  if(_smartqueue_users_settings_get('subqueue_privacy_changeable', $queue->qid)) {
    $form['subqueue_privacy'] = array(
      '#type' => 'radios',
      '#title' => t('Privacy'),
      '#description' => t("Select the privacy for this subqueue. Public means that everyone can see the content of this subqueue. Private means that only the owner can see the content."),
      '#options' => _smartqueue_users_form_privacy_options(),
      '#default_value' => (int)(!empty($subqueue) ? smartqueue_users_subqueue_get_privacy($subqueue) : _smartqueue_users_settings_get('subqueue_privacy_default', $queue->qid)),
    );
  }
  
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t(empty($subqueue) ? 'Add subqueue' : 'Save changes'),
  );
  
  $form['#redirect'] = "user/$account->uid/queue";
  
  return $form;
}

/**
 * Validation for the form to add or edit a new subqueue.
 */
function smartqueue_users_subqueue_edit_form_validate($form, &$form_state) {
  
  // Only check if this a new subqueue, not an edited one.
  if (!isset($form_state['values']['sqid'])) {
    $uid = $form_state['values']['uid'];
    $qid = $form_state['values']['qid'];
    
    // Check that the subqueue limit hasn't been reached.
    if (smartqueue_users_reached_subqueue_limit($uid, $qid)) {
      drupal_set_message(t('This queue has reached the subqueue limit for this user.'), 'error');
      drupal_goto($form['#redirect']);
    }
  }
  
}

/**
 * Submittion for the form to add or edit a new subqueue.
 */
function smartqueue_users_subqueue_edit_form_submit($form, &$form_state) {
  
  $qid = $form_state['values']['qid'];
  $queue = nodequeue_load($qid);
  
  $title = $form_state['values']['subqueue_title'];
  
  if (isset($form_state['values']['sqid'])) {
    
    // Editing an existing subqueue.
    $sqid = $form_state['values']['sqid'];
    
    $subqueue = subqueue_load($sqid);
    nodequeue_subqueue_update_title($sqid, $title);
    
    drupal_set_message(t('Saved changes to subqueue !subqueue_title in !queue_title', array('!subqueue_title' => $subqueue->title, '!queue_title' => $queue->title)));
    
  }
  else {
    
    // Adding a new subqueue.
    $uid = $form_state['values']['uid'];
    
    $subqueue = nodequeue_add_subqueue($queue, $title, smartqueue_users_get_next_reference_string($uid, $qid));
    
    drupal_set_message(t('Added subqueue !subqueue_title to !queue_title', array('!subqueue_title' => $subqueue->title, '!queue_title' => $queue->title)));
    
  }
  
  // Save the subqueue specific privacy setting, where relevant.
  if (isset($form_state['values']['subqueue_privacy'])) {
    smartqueue_users_subqueue_set_privacy($subqueue, $form_state['values']['subqueue_privacy']);
  }
  
}

/**
 * Form to remove a subqueue.
 */
function smartqueue_users_subqueue_remove_form(&$form_state, $account, $subqueue) {
  $path = "user/$account->uid/queue";
  
  return confirm_form(
    array(
      'sqid' => array(
        '#type' => 'value',
        '#value' => $subqueue->sqid,
      ),
      '#redirect' => $path,
    ),
    t('Are you sure you want to remove the subqueue %subqueue?', array('%subqueue' => $subqueue->title)),
    $path,
    t('This will remove all content from the subqueue. This action cannot be undone.'),
    t('Delete')
  );
}

/**
 * Submittion for the form to remove a subqueue.
 */
function smartqueue_users_subqueue_remove_form_submit($form, &$form_state) {
  $sqid = $form_state['values']['sqid'];
  
  smartqueue_users_remove_subqueue($sqid);
  
  drupal_set_message(t('The subqueue has been removed.'));
}