<?php
/**
 * @package    FFGate
 * @author     Yves Hoppe <yves@compojoom.com>
 * @date       26.11.13
 *
 * @copyright  Copyright (C) 2008 - 2013 compojoom.com - Yves Hoppe. All rights reserved.
 * @license    GNU General Public License version 2 or later; see LICENSE
 */

defined('_JEXEC') or die('Restricted access');

$doc = JFactory::getDocument();

if ($this->format == 'raw')
{
	// We should load probably some basic CSS files here
}

if (FFGateHelperSettings::_('loadMootools', 1))
{
	if (JVERSION >= 3)
	{
		JHtmlBehavior::framework();
		JHtml::_('jquery.framework');
	}
	else
	{
		JHTML::_('behavior.mootools');
	}
}

// Adding our custom css
$doc->addStyleSheet('media/com_ffgate/css/ffgate.css');

// Adding custom stylesheet with higer priority then ours
$doc->addStyleDeclaration($this->params->get('custom_css', "/* FFGATE CSS */"));

// Christmas promotion 2013
if (FFGateHelperSettings::_('snowEffect', 0))
{
	// Load JQuery
	JHtml::_('jquery.framework');

	$doc->addScript('media/com_ffgate/js/jquery.snow.min.js');
	$doc->addScriptDeclaration('
		jQuery(document).ready( function(){
			jQuery.fn.snow({maxSize: 40});
		});
	');
}

// Testing if app_id & app_secret ist set
if (empty($this->site->app_id) || empty($this->site->app_secret))
{
	JError::raiseError("403", JText::_("COM_FFGATE_CONFIGURE_YOUR_FB_APP_SECRETS"));
}

// Connecting to facebook - should be moved into a function / helper or into model later
$facebook = new Facebook(
	array(
		'appId' => $this->site->app_id,
		'secret' => $this->site->app_secret,
		'cookie' => true
	)
);

// If site is set to public everybody is going to see the html_text without filtering
if ($this->public)
{
	echo JHTML::_('content.prepare', $this->site->html_text);
}
else
{
	$signed_request = $facebook->getSignedRequest();

	// Should be moved to helper
	function parsePageSignedRequest()
	{
		if (isset($_REQUEST['signed_request']))
		{
			$encoded_sig = null;
			$payload = null;
			list($encoded_sig, $payload) = explode('.', $_REQUEST['signed_request'], 2);
			$sig = base64_decode(strtr($encoded_sig, '-_', '+/'));
			$data = json_decode(base64_decode(strtr($payload, '-_', '+/'), true));

			return $data;
		}

		return false;
	}

	// Check if visitor comes from facebook
	if ($signed_request = parsePageSignedRequest())
	{
		// Content for Fans
		if ($signed_request->page->liked)
		{
			echo JHTML::_('content.prepare', $this->site->html_text);
		}
		else
		{
			// Content for no Fans
			echo JHTML::_('content.prepare', $this->site->html_text_no_fan);
		}
	}
	else
	{
		// Show this error to none facebook visitors
		JError::raiseError(403, JText::_("COM_FFGATE_THIS_PAGE_IS_RESTRICTED_TO_FACEBOOK_VISITORS"));
	}
}

if (FFGateHelperSettings::_('showPoweredby', 1))
{
	echo FFGateHelperBasic::footer();
}

if (FFGateHelperSettings::_('disableScrolls', 1)):?>
	<div id="fb-root"></div>
	<script type="text/javascript">
		window.fbAsyncInit = function () {
			FB.init({
				appId: '<?php echo $this->site->app_id; ?>',
				status: true,
				cookie: false,
				xfbml: true
			});
			FB.Canvas.setAutoGrow(100);
		};
		(function () {
			var e = document.createElement('script');
			e.async = true;
			e.src = document.location.protocol +
				'//connect.facebook.net/de_DE/all.js';
			document.getElementById('fb-root').appendChild(e);
		}());
	</script>
<?php endif; ?>
<?php if (FFGateHelperSettings::_('shareButton', 0)): ?>
	<div align="right">
		<a target="_top"
		   href="http://www.facebook.com/dialog/feed?app_id=<?php echo $this->site->app_id; ?>&link=https://www.facebook.com/<?php echo $this->site->fbuser; ?>?sk=app_<?php echo $this->site->app_id;
		   ?>&picture=<?php echo JUri::root() . "images/" . $this->site->thumbnail; ?>&name=<?php echo urlencode($this->site->title); ?>&caption=<?php echo urlencode($this->site->caption);
		   ?>&description=<?php echo urlencode($this->site->description); ?>&redirect_uri=https://www.facebook.com/<?php echo $this->site->fbuser;
		   ?>?sk=app_<?php echo $this->site->app_id; ?>&display=page"
		   class="shareButton"/><?php echo JText::_("COM_FFGATE_SHARE"); ?></a>
	</div>
<?php endif; ?>