<?php

/**
 * Implements hook_features_api().
 */
function fe_nodequeue_features_api() {
  return array(
      'fe_nodequeue' => array(
          'name' => t('Nodequeues'),
          'feature_source' => TRUE,
          'default_hook' => 'fe_nodequeue_export_fields',
          'default_file' => FEATURES_DEFAULTS_INCLUDED_COMMON,
      )
  );
}

/**
 * Implements hook_features_export_options().
 */
function fe_nodequeue_features_export_options() {
  $options = array();
  $table   = 'nodequeue_queue';

  $query = "SELECT * FROM {{$table}}";
  $fields = db_query($query);
  while ($obj = $fields->fetchObject()) {
    $options[$obj->name] = t('@name [@machine_name]', array('@name' => $obj->title, '@machine_name' => $obj->name));
  }

  return $options;
}

/**
 * Implements hook_features_export().
 */
function fe_nodequeue_features_export($data, &$export, $module_name = '') {
  $pipe = array();
  $map = features_get_default_map('fe_nodequeue');
  foreach ($data as $name) {
    $export['dependencies']['fe_nodequeue'] = 'fe_nodequeue';
    // If another module provides this style, add it as a dependency
    if (isset($map[$name]) && $map[$name] != $module_name) {
      $module = $map[$name];
      $export['dependencies'][$module] = $module;
    }
    // Otherwise, export the nodequeue
    elseif (nodequeue_load_queue_by_name($name)) {
      $export['features']['fe_nodequeue'][$name] = $name;
    }
  }
  return $pipe;
}

/**
 * Implements hook_features_export_render().
 */
function fe_nodequeue_features_export_render($module_name = '', $data) {
  $code = array();
  $code[] = '  $nodequeues = array();';
  $code[] = '';

  foreach ($data as $name) {
    // Clone the nodequeue object so that our changes aren't statically
    // cached.
    $nodequeue_static = nodequeue_load_queue_by_name($name);
    if (!empty($nodequeue_static) && $nodequeue = clone $nodequeue_static) {
      // sort roles and types arrays into ascending order so that we can
      // check for overridden db data without being affected by the
      // order in which this array gets stored/loaded.
      if (!empty($nodequeue->roles)) {
        sort($nodequeue->roles);
      }
      if (!empty($nodequeue->types)) {
        sort($nodequeue->types);
      }

      // Remove variables which are specific to the current site and should not
      // be exported.
      unset($nodequeue->qid);
      unset($nodequeue->subqueues);

      $nodequeue_export = features_var_export($nodequeue, '  ');

      $code[] = "  // Exported nodequeues: {$nodequeue->name}";
      $code[] = "  \$nodequeues['{$name}'] = {$nodequeue_export};";
      $code[] = "";
    }
  }

  $code[] = '  return $nodequeues;';
  $code = implode("\n", $code);

  return array('fe_nodequeue_export_fields' => $code);
}


/**
 * Implements hook_features_revert().
 */
function fe_nodequeue_features_revert($module) {
  $defaults = features_get_default('fe_nodequeue', $module);

  // Revert.
  foreach ($defaults as $object) {
    if (empty($object['name'])) {
      continue;
    }

    if ($nodequeue_queue = nodequeue_load_queue_by_name($object['name'])) {
      // Update existing nodequeue in the situation that a nodequeue with the
      // same name already exists.
      $object['qid'] = $nodequeue_queue->qid;
    }
    $result = _fe_nodequeue_save_queue((array) $object);
  }

  return TRUE;
}

/**
 * Implements hook_features_revert().
 */
function fe_nodequeue_features_rebuild($module) {
  fe_nodequeue_features_revert($module);
}

 /**
 * Implements hook_features_enable_feature().
 */
function fe_nodequeue_features_enable_feature($module) {
  fe_nodequeue_features_revert($module);
}

/**
 * Save a nodequeue queue.
 *
 * @param $settings
 * @return array
 */
function _fe_nodequeue_save_queue($settings = array()) {
  // Simulate checkboxes.
  $settings['roles'] = drupal_map_assoc($settings['roles']);
  $settings['types'] = drupal_map_assoc($settings['types']);

  // Simulate submitting.
  $form_state = array();
  $form_state['values'] = $settings;
  module_load_include('inc', 'nodequeue', 'includes/nodequeue.admin');
  nodequeue_edit_queue_form_submit(NULL, $form_state);

  return $settings;
}