<?php

final class HarbormasterBuildLogDownloadController
  extends HarbormasterController {

  public function shouldAllowPublic() {
    return true;
  }

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

    $id = $request->getURIData('id');

    $log = id(new HarbormasterBuildLogQuery())
      ->setViewer($viewer)
      ->withIDs(array($id))
      ->executeOne();
    if (!$log) {
      return new Aphront404Response();
    }

    $cancel_uri = $log->getURI();
    $file_phid = $log->getFilePHID();

    if (!$file_phid) {
      return $this->newDialog()
        ->setTitle(pht('Log Not Finalized'))
        ->appendParagraph(
          pht(
            'Logs must be fully written and processed before they can be '.
            'downloaded. This log is still being written or processed.'))
        ->addCancelButton($cancel_uri, pht('Wait Patiently'));
    }

    $file = id(new PhabricatorFileQuery())
      ->setViewer($viewer)
      ->withPHIDs(array($file_phid))
      ->executeOne();
    if (!$file) {
      return $this->newDialog()
        ->setTitle(pht('Unable to Load File'))
        ->appendParagraph(
          pht(
            'Unable to load the file for this log. The file may have been '.
            'destroyed.'))
        ->addCancelButton($cancel_uri);
    }

    return $file->newDownloadResponse();
  }

}