<?php

/*
 * This file is part of the Access to Memory (AtoM) software.
 *
 * Access to Memory (AtoM) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Access to Memory (AtoM) is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Access to Memory (AtoM).  If not, see <http://www.gnu.org/licenses/>.
 */

class arWebDebugPanel extends sfWebDebugPanel
{
  public static function listenToLoadDebugWebPanelEvent(sfEvent $event)
  {
    $panelManager = $event->getSubject();
    $event->getSubject()->setPanel(
      'AtoM', new self($panelManager)
    );
  }

  public function getTitle()
  {
    $title = 'AtoM '.qubitConfiguration::VERSION;

    if (null !== $rev = $this->getCurrentGitRevision())
    {
      $title .= ' <strong>(git:'.$rev.')</strong>';
    }

    return $title;
  }

  public function getPanelTitle()
  {
    return 'AtoM';
  }

  public function getPanelContent()
  {
  }

  protected function getCurrentGitRevision()
  {
    $gitDirectory = sfConfig::get('sf_web_dir').DIRECTORY_SEPARATOR.'.git'.DIRECTORY_SEPARATOR;
    $headFile = $gitDirectory.'HEAD';
    // Use at sign to avoid unnecessary warning
    if (false !== $fd = @fopen($headFile, 'r'))
    {
      $line = fgets($fd);
      fclose($fd);
    }
    else
    {
      return;
    }

    $refParts = preg_split("/[\s\t]+/", $line, -1, PREG_SPLIT_NO_EMPTY);
    if (2 == count($refParts))
    {
      $ref = $gitDirectory.$refParts[1];
      if (false !== $fd = fopen($ref, 'r'))
      {
        $hash = fgets($fd);
        fclose($fd);

        $branch = substr($ref, strrpos($ref, '/') + 1);

        return $branch.'/'.substr($hash, 0, 16);
      }
    }
  }
}
