DoorkeeperRemarkupRuleAsana.php
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	<?php

	final class DoorkeeperRemarkupRuleAsana
	extends PhutilRemarkupRule {

	const KEY_TAGS = 'doorkeeper.tags';

	public function apply($text) {
	return preg_replace_callback(
	'@https://app\\.asana\\.com/0/(\\d+)/(\\d+)@',
	array($this, 'markupAsanaLink'),
	$text);
	}

	public function markupAsanaLink($matches) {
	$key = self::KEY_TAGS;
	$engine = $this->getEngine();
	$token = $engine->storeText('AsanaDoorkeeper');

	$tags = $engine->getTextMetadata($key, array());

	$tags[] = array(
	'token' => $token,
	'href' => $matches[0],
	'tag' => array(
	'ref' => array(
	DoorkeeperBridgeAsana::APPTYPE_ASANA,
	DoorkeeperBridgeAsana::APPDOMAIN_ASANA,
	DoorkeeperBridgeAsana::OBJTYPE_TASK,
	$matches[2],
	),
	'extra' => array(
	'asana.context' => $matches[1],
	),
	),
	);

	$engine->setTextMetadata($key, $tags);

	return $token;
	}

	public function didMarkupText() {
	$key = self::KEY_TAGS;
	$engine = $this->getEngine();
	$tags = $engine->getTextMetadata($key, array());

	if (!$tags) {
	return;
	}

	$refs = array();
	foreach ($tags as $spec) {
	$tag_id = celerity_generate_unique_node_id();

	$refs[] = array(
	'id' => $tag_id,
	) + $spec['tag'];

	$view = id(new PhabricatorTagView())
	->setID($tag_id)
	->setName($spec['href'])
	->setHref($spec['href'])
	->setType(PhabricatorTagView::TYPE_OBJECT)
	->setExternal(true);

	$engine->overwriteStoredText($spec['token'], $view);
	}

	Javelin::initBehavior('doorkeeper-tag', array('tags' => $refs));

	$engine->setTextMetadata($key, array());
	}

	}