<?php

final class PhabricatorMacroAudioController extends PhabricatorMacroController {

  public function handleRequest(AphrontRequest $request) {
    $viewer = $request->getViewer();
    $id = $request->getURIData('id');

    $this->requireApplicationCapability(
      PhabricatorMacroManageCapability::CAPABILITY);

    $macro = id(new PhabricatorMacroQuery())
      ->setViewer($viewer)
      ->requireCapabilities(
        array(
          PhabricatorPolicyCapability::CAN_VIEW,
        ))
      ->withIDs(array($id))
      ->executeOne();

    if (!$macro) {
      return new Aphront404Response();
    }

    $errors = array();
    $view_uri = $this->getApplicationURI('/view/'.$macro->getID().'/');

    $e_file = null;
    $file = null;

    if ($request->isFormPost()) {
      $xactions = array();

      if ($request->getBool('behaviorForm')) {
        $xactions[] = id(new PhabricatorMacroTransaction())
          ->setTransactionType(
            PhabricatorMacroAudioBehaviorTransaction::TRANSACTIONTYPE)
          ->setNewValue($request->getStr('audioBehavior'));
      } else {
        $file = null;
        if ($request->getFileExists('file')) {
          $file = PhabricatorFile::newFromPHPUpload(
            $_FILES['file'],
            array(
              'name' => $request->getStr('name'),
              'authorPHID' => $viewer->getPHID(),
              'isExplicitUpload' => true,
            ));
        }

        if ($file) {
          if (!$file->isAudio()) {
            $errors[] = pht(
              'The file you uploaded is invalid: it is not recognizable as '.
              'a valid audio file.');
            $e_file = pht('Invalid');
          } else {
            $xactions[] = id(new PhabricatorMacroTransaction())
              ->setTransactionType(
                PhabricatorMacroAudioTransaction::TRANSACTIONTYPE)
              ->setNewValue($file->getPHID());
          }
        } else {
          $errors[] = pht(
            'To change the audio for a macro, you must upload an audio '.
            'file.');
          $e_file = pht('Required');
        }
      }

      if (!$errors) {
        id(new PhabricatorMacroEditor())
          ->setActor($viewer)
          ->setContinueOnNoEffect(true)
          ->setContentSourceFromRequest($request)
          ->applyTransactions($macro, $xactions);

        return id(new AphrontRedirectResponse())->setURI($view_uri);
      }
    }

    $suggestion_volume = pht(
     'If you set one of the Play options, audio volume will automatically '.
     'increase when scrolling closer to the Macro, and decrease when '.
     'scrolling away.');

    $suggestion_click = pht(
     'If the audio does not play, you may need to reload the page and '.
     'interact with it (for example, click somewhere), or check your web '.
     'permissions as modern browsers may block audio autoplay.');

    $form = id(new AphrontFormView())
      ->addHiddenInput('behaviorForm', 1)
      ->setUser($viewer);

    $options = id(new AphrontFormRadioButtonControl())
      ->setLabel(pht('Audio Behavior'))
      ->setName('audioBehavior')
      ->setValue(
        nonempty(
          $macro->getAudioBehavior(),
          PhabricatorFileImageMacro::AUDIO_BEHAVIOR_NONE));

    $options->addButton(
      PhabricatorFileImageMacro::AUDIO_BEHAVIOR_NONE,
      pht('Do Not Play'),
      pht('Do not play audio.'));

    $options->addButton(
      PhabricatorFileImageMacro::AUDIO_BEHAVIOR_ONCE,
      pht('Play Once'),
      pht('Play audio once, when the viewer looks at the macro.'));

    $options->addButton(
      PhabricatorFileImageMacro::AUDIO_BEHAVIOR_LOOP,
      pht('Play Continuously'),
      pht(
        'Play audio continuously, treating the macro as an audio source. '.
        'Best for ambient sounds.'));

    $options->setCaption(
      implode(' ', array(
        $suggestion_volume,
        $suggestion_click,
      )));

    $form->appendChild($options);
    $form->appendChild(
        id(new AphrontFormSubmitControl())
          ->setValue(pht('Save Audio Behavior'))
          ->addCancelButton($view_uri));

    $crumbs = $this->buildApplicationCrumbs();

    $title = pht('Edit Audio: %s', $macro->getName());
    $crumb = pht('Edit Audio');

    $crumbs->addTextCrumb(pht('Macro "%s"', $macro->getName()), $view_uri);
    $crumbs->addTextCrumb($crumb, $request->getRequestURI());
    $crumbs->setBorder(true);

    $upload_form = id(new AphrontFormView())
      ->setEncType('multipart/form-data')
      ->setUser($viewer)
      ->appendChild(
        id(new AphrontFormFileControl())
          ->setLabel(pht('Audio File'))
          ->setName('file'))
      ->appendChild(
        id(new AphrontFormSubmitControl())
          ->setValue(pht('Upload File')));

    $upload = id(new PHUIObjectBoxView())
      ->setHeaderText(pht('Upload New Audio'))
      ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
      ->setForm($upload_form);

    $form_box = id(new PHUIObjectBoxView())
      ->setHeaderText(pht('Behavior'))
      ->setFormErrors($errors)
      ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
      ->setForm($form);

    $header = id(new PHUIHeaderView())
      ->setHeader($title)
      ->setHeaderIcon('fa-pencil');

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

    return $this->newPage()
      ->setTitle($title)
      ->setCrumbs($crumbs)
      ->appendChild($view);
  }

}