cleanpath/TemplatePage.class.php

<?php

class TemplatePage
{

	public static function getInstance()
	{
		return new TemplatePage(new TwigWrapper("/var/www/views"), OfferRetriever::getInstance());
	}
	private $twig;
	private $offerRetriever;

	public function __construct(TwigWrapper $twig, OfferRetriever $offerRetriever)
	{
		$this->twig = $twig;
		$this->offerRetriever = $offerRetriever;
	}

	public function display()
	{
		$offerId = $_GET['id'];
		$page = isset($_GET['page']) ? $_GET['page'] : 0;
		
		$templateName = 'templateDoesNotExist.html';
		$pageData = array();
		if(isset($offerId))
		{
			$pageData = $this->offerRetriever->getPageData($offerId, $page);
			$templateName = $pageData['filename'];
		}
		return $this->twig->render($templateName, $pageData);
	}
}