<?php

/**
 * @group conpherence
 */
final class ConpherenceReplyHandler extends PhabricatorMailReplyHandler {

  public function validateMailReceiver($mail_receiver) {
    if (!($mail_receiver instanceof ConpherenceThread)) {
      throw new Exception("Mail receiver is not a ConpherenceThread!");
    }
  }

  public function getPrivateReplyHandlerEmailAddress(
    PhabricatorObjectHandle $handle) {
    return $this->getDefaultPrivateReplyHandlerEmailAddress($handle, 'E');
  }

  public function getPublicReplyHandlerEmailAddress() {
    return $this->getDefaultPublicReplyHandlerEmailAddress('E');
  }

  public function getReplyHandlerInstructions() {
    if ($this->supportsReplies()) {
      return pht('Reply to comment and attach files.');
    } else {
      return null;
    }
  }

  protected function receiveEmail(PhabricatorMetaMTAReceivedMail $mail) {
    $conpherence = $this->getMailReceiver();
    $user = $this->getActor();

    $body = $mail->getCleanTextBody();
    $body = trim($body);
    $file_phids = $mail->getAttachments();
    $body = $this->enhanceBodyWithAttachments($body, $file_phids);

    $xactions = array();
    if ($file_phids) {
      $xactions[] = id(new ConpherenceTransaction())
        ->setTransactionType(ConpherenceTransactionType::TYPE_FILES)
        ->setNewValue(array('+' => $file_phids));
    }
    $xactions[] = id(new ConpherenceTransaction())
      ->setTransactionType(PhabricatorTransactions::TYPE_COMMENT)
      ->attachComment(
        id(new ConpherenceTransactionComment())
        ->setContent($body)
        ->setConpherencePHID($conpherence->getPHID())
      );

    $content_source = PhabricatorContentSource::newForSource(
      PhabricatorContentSource::SOURCE_EMAIL,
      array(
        'id' => $mail->getID(),
      ));

    $editor = id(new ConpherenceEditor())
      ->setActor($user)
      ->setContentSource($content_source)
      ->setParentMessageID($mail->getMessageID())
      ->applyTransactions($conpherence, $xactions);

    return null;
  }

}