<?php

final class PhabricatorXHPASTViewRunController
  extends PhabricatorXHPASTViewController {

  protected function buildApplicationCrumbs() {
    return parent::buildApplicationCrumbs()
      ->addAction(
        id(new PHUIListItemView())
          ->setName(pht('Use PHPAST'))
          ->setHref('/phpast/')
          ->setIcon('fa-random'));
  }

  public function handleRequest(AphrontRequest $request) {
    $viewer = $this->getViewer();

    if ($request->isFormPost()) {
      $source = $request->getStr('source');

      $future = PhutilXHPASTBinary::getParserFuture($source);
      $resolved = $future->resolve();

      // This is just to let it throw exceptions if stuff is broken.
      try {
        XHPASTTree::newFromDataAndResolvedExecFuture($source, $resolved);
      } catch (XHPASTSyntaxErrorException $ex) {
        // This is possibly expected.
      }

      list($err, $stdout, $stderr) = $resolved;

      $storage_tree = id(new PhabricatorXHPASTParseTree())
        ->setInput($source)
        ->setReturnCode($err)
        ->setStdout($stdout)
        ->setStderr($stderr)
        ->setAuthorPHID($viewer->getPHID())
        ->save();

      return id(new AphrontRedirectResponse())
        ->setURI('/xhpast/view/'.$storage_tree->getID().'/');
    }

    $form = id(new AphrontFormView())
      ->setViewer($viewer)
      ->appendChild(
        id(new AphrontFormTextAreaControl())
          ->setLabel(pht('Source'))
          ->setName('source')
          ->setValue("<?php\n\n")
          ->setHeight(AphrontFormTextAreaControl::HEIGHT_VERY_TALL))
      ->appendChild(
        id(new AphrontFormSubmitControl())
          ->setValue(pht('Parse')));

    $form_box = id(new PHUIObjectBoxView())
      ->setHeaderText(pht('Generate XHP AST'))
      ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
      ->setForm($form);

    $title = pht('XHPAST View');
    $header = id(new PHUIHeaderView())
      ->setHeader($title)
      ->setHeaderIcon('fa-ambulance');

    $view = id(new PHUITwoColumnView())
      ->setHeader($header)
      ->setFooter(array(
        $form_box,
      ));

    return $this->newPage()
      ->setTitle($title)
      ->setCrumbs(
        id(new PHUICrumbsView())
          ->addAction(
            id(new PHUIListItemView())
              ->setName(pht('Use PHPAST'))
              ->setHref('/phpast/')
              ->setIcon('fa-random')))
      ->appendChild($view);

  }

}