<?php

/*
 * Copyright 2011 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

class PhabricatorXHPASTViewTreeController
  extends PhabricatorXHPASTViewPanelController {

  public function processRequest() {
    $storage = $this->getStorageTree();
    $input = $storage->getInput();
    $stdout = $storage->getStdout();

    $tree = XHPASTTree::newFromDataAndResolvedExecFuture(
      $input,
      array(0, $stdout, ''));

    $tree = '<ul>'.$this->buildTree($tree->getRootNode()).'</ul>';
    return $this->buildXHPASTViewPanelResponse($tree);
  }

  protected function buildTree($root) {

    try {
      $name = $root->getTypeName();
      $title = $root->getDescription();
    } catch (Exception $ex) {
      $name = '???';
      $title = '???';
    }

    $tree = array();
    $tree[] =
      '<li>'.
        phutil_render_tag(
          'span',
          array(
            'title' => $title,
          ),
          phutil_escape_html($name)).
      '</li>';
    foreach ($root->getChildren() as $child) {
      $tree[] = '<ul>'.$this->buildTree($child).'</ul>';
    }
    return implode("\n", $tree);
  }

}