<?php
/**
 * @package DJ-Catalog2
 * @copyright Copyright (C) DJ-Extensions.com, All rights reserved.
 * @license http://www.gnu.org/licenses GNU/GPL
 * @author url: http://dj-extensions.com
 * @author email contact@dj-extensions.com
 *
 */

use Joomla\CMS\MVC\View\HtmlView;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Plugin\PluginHelper;
use Joomla\CMS\Router\Route;
use Joomla\CMS\Uri\Uri;



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

jimport('joomla.application.component.view');
jimport('joomla.html.pagination');

class DJCatalog2ViewItem extends HtmlView {

	public function __construct($config = array())
	{
		parent::__construct($config);
		$this->_addPath('template', JPATH_ROOT.'/components/com_djcatalog2'.  '/themes/default/views/item');
		$theme = DJCatalog2ThemeHelper::getThemeName();
		if ($theme && $theme != 'default') {
			$this->_addPath('template', JPATH_ROOT.'/components/com_djcatalog2'.  '/themes/'.$theme.'/views/item');
		}
	}

	function display($tpl = null) {
		$app = Factory::getApplication();
		$document= Factory::getDocument();
		$model = $this->getModel();

		$menus		= $app->getMenu('site');
		$menu  = $menus->getActive();
		$dispatcher	= Joomla\CMS\Factory::getApplication()->getDispatcher();
		$user	= Factory::getUser();
		$groups	= $user->getAuthorisedViewLevels();

		$categories = Djc2Categories::getInstance(array('state'=>'1', 'access'=> $groups));

		$limitstart	= $app->input->get('limitstart', 0, 'int');

		$state = $this->get('State');
		$item = $this->get('Item');
		$this->contactform	= $this->get('Form');
		$this->showcontactform = ($app->getUserState('com_djcatalog2.contact.data')) ? 'false' : 'true';

		if (empty($item) || $item->published <= 0) {
			throw new Exception(Text::_('COM_DJCATALOG2_PRODUCT_NOT_FOUND'), 404);
		}

		$catid = (int)$app->input->getInt('cid');
		$category = $categories->get($item->cat_id);
		$current_category = ($catid == $item->cat_id) ? $category : $categories->get($catid);

		$errorAction = false;

		if (empty($category)) {
			$allCategories =  Djc2Categories::getInstance();
			$category2nd = $allCategories->get($item->cat_id);

			if (empty($category2nd) || !$category2nd->published) {
				// product category really doesn't exist
				$errorAction = 404;
			} else {
				// user doesn't have access to this category
				$errorAction = 303;
			}
		}
		if (empty($current_category) && $catid != $item->cat_id) {
			$allCategories =  Djc2Categories::getInstance();
			$category2nd = $allCategories->get($catid);

			if (empty($category2nd) || !$category2nd->published) {
				// product category really doesn't exist
				$errorAction = 404;
			} else {
				// user doesn't have access to this category
				$errorAction = 303;
			}
		} else if (!empty($current_category) && !in_array($current_category->access, $groups)) {
			$errorAction = 303;
		}

		if ($errorAction) {
			if (!$user->guest && ($errorAction == 301 || $errorAction == 303) ) {
				$errorAction = 403;
			}

			switch($errorAction) {
				case 404 : {
					throw new Exception(Text::_('COM_DJCATALOG2_PRODUCT_NOT_FOUND'), 404);
					return false;
					break;
				}
				case 403: {
					throw new Exception(Text::_('JERROR_ALERTNOAUTHOR'), 403);
					return false;
					break;
				}
				case 301 :
				case 303 : {
					$return_url = base64_encode((string)Uri::getInstance());
					$app->enqueueMessage(Text::_('COM_DJCATALOG2_PLEASE_LOGIN'));
					$app->redirect(Route::_('index.php?option=com_users&view=login&return='.$return_url, false), $errorAction);
					return true;

				}
				default : {
					throw new Exception(Text::_('COM_DJCATALOG2_PRODUCT_NOT_FOUND'), 404);
					return false;
					break;
				}
			}
		}

		if ($item->parent_id > 0) {
			$item->_parent = $model->getItem($item->parent_id);
		}

		/*if ($item->parent_id > 0) {
			$app->redirect(Route::_(DJCatalogHelperRoute::getItemRoute($item->parent_id.':'.$item->alias, $item->cat_id.':'.$item->category_alias)));
		}*/

		// if category id in the URL differs from product's category id
		// we add canonical link to document's header
		/*if (\Joomla\String\StringHelper::strcmp(DJCatalogHelperRoute::getItemRoute($item->slug, (int)$item->cat_id), DJCatalogHelperRoute::getItemRoute($item->slug, (int)$catid)) != 0) {
			$document->addHeadLink(Route::_(DJCatalogHelperRoute::getItemRoute($item->slug, $item->catslug)), 'canonical');
			//$document->addCustomTag('<link rel="canonical" href="'.Route::_(DJCatalogHelperRoute::getItemRoute($item->slug, $item->catslug)).'"/>');
		}*/

		foreach($this->document->_links as $key => $headlink) {
			if ($headlink['relation'] == 'canonical' ) {
				unset($this->document->_links[$key]);
			}
		}

		$canonical = Route::_(DJCatalogHelperRoute::getItemRoute($item->slug, $item->catslug), true, (Uri::getInstance()->isSSL() ? 1 : -1));
		$canonical = str_replace(['&ic=1', '?ic=1'], '', $canonical);

		$this->document->addHeadLink($canonical, 'canonical');

		$app->input->set('refcid', $app->input->getString('cid'));

		// if category id is not present in the URL or it equals 0
		// we set it to product's cat id
		if ($catid == 0) {
			$app->input->set('cid', $item->cat_id);
		}

		// params in this view should be generated only after we make sure
		// that product's cat id is in the request.
		$params = Djcatalog2Helper::getParams(true);
		if (!empty($item)) {
			/*if (!empty($item->params)) {
				$item_params = new Registry($item->params);
				$params->merge($item_params);
				$item->params = $item_params;
			} else {
				$item->params = new Registry($item->params);
			}*/

			if (!empty($item->params)) {
				$params->merge($item->params);
			}
		}

		if (!in_array($item->access, $groups))
		{
			if ($params->get('items_show_restricted') && $user->guest) {
				$uri = JURI::getInstance();
				$return_url = base64_encode((string)$uri);
				$app->enqueueMessage(Text::_('COM_DJCATALOG2_PLEASE_LOGIN'));
				$app->redirect(Route::_('index.php?option=com_users&view=login&return='.$return_url, false), 303);
				return true;
			} else {
				throw new Exception(Text::_('JERROR_ALERTNOAUTHOR'), 403);
			}
		}

		/* plugins */
		PluginHelper::importPlugin('djcatalog2');
		PluginHelper::importPlugin('content');

		$results = Joomla\CMS\Factory::getApplication()->triggerEvent('onPrepareItemDescription', array (& $item, & $params, $limitstart));
		//Joomla\CMS\Factory::getApplication()->triggerEvent('onContentPrepare', array ('com_djcatalog2.item', & $item, & $params, $limitstart));

		$item->event = new stdClass();
		$item->event->afterDJCatalog2DisplayTitle = false;
		$item->event->beforeDJCatalog2DisplayContent = false;
		$item->event->afterDJCatalog2DisplayContent = false;

		if ($this->getLayout() != 'print') {
			$resultsAfterTitle = Joomla\CMS\Factory::getApplication()->triggerEvent('onAfterDJCatalog2DisplayTitle', array (&$item, &$params, $limitstart));
			$item->event->afterDJCatalog2DisplayTitle = trim(implode("\n", $resultsAfterTitle));

			$resultsBeforeContent = Joomla\CMS\Factory::getApplication()->triggerEvent('onBeforeDJCatalog2DisplayContent', array (&$item, &$params, $limitstart));
			$item->event->beforeDJCatalog2DisplayContent = trim(implode("\n", $resultsBeforeContent));

			$resultsAfterContent = Joomla\CMS\Factory::getApplication()->triggerEvent('onAfterDJCatalog2DisplayContent', array (&$item, &$params, $limitstart));
			$item->event->afterDJCatalog2DisplayContent = trim(implode("\n", $resultsAfterContent));
		}

		$this->categories = $categories;
		$this->category = $category;
		$this->item = $item;
		$this->model = $model;

		$this->params = $params;
		$this->relateditems = $model->getRelatedItems();
		$this->attributes = $model->getAttributes();
		//$this->cart_attributes = $model->getCartAttributes();
		$this->cart_variant_fields = $model->getCartVariants();
		$this->item->_combinations = $model->getCombinations($this->item->id);
		$this->item->_customisations = $model->getCustomisations($this->item->id);
		$this->cart_customisations = $model->getCustomisations(0);

		$this->all_customisations = array_merge($this->item->_customisations, $this->cart_customisations);

		$this->customisations_form = $model->getCustomisationsForm($this->all_customisations, $this->item, $this->params, $app->getUserState('com_djcatalog2.recent_customisation', array()));

		$this->navigation = $model->getNavigation($this->item->id, $this->item->cat_id, $params);

		$this->children = $model->getChildren($this->item->id);
		if (!empty($this->children)) {
			$childrenModel = $model->getChildrenModel();
			$this->childrenAttributes = $childrenModel->getAttributes();
			$this->childrenColumns = $childrenModel->getFieldGroups($childrenModel);

			foreach($this->childrenColumns as &$column) {
				$column->_isEmpty = true;
				$attributeName = '_ef_'.$column->alias;
				foreach($this->children as $child) {
					if (isset($child->$attributeName) && (is_array($child->$attributeName) || (is_scalar($child->$attributeName) && trim((string)$child->$attributeName) != ''))) {
						$column->_isEmpty = false;
						break;
					}
				}
			}
			unset($column);
		}

		if ($app->input->get('pdf') == '1' && $app->input->get('tmpl') == 'component' && $this->getLayout() == 'print') {
			if (File::exists(JPath::clean(JPATH_ROOT.'/libraries/vendor/dompdf/autoload.inc.php')) == false) {
				throw new Exception('DOMPDF Libary is missing!');
			}

			$this->_preparePDF();

			$app->close();
			return true;
		}

		$this->_prepareDocument();

		$model->hit();

		parent::display($tpl);
	}
	protected function _prepareDocument() {
		$app		= Factory::getApplication();
		$menus		= $app->getMenu();
		$pathway	= $app->getPathway();
		$title		= null;
		$heading		= null;
		$document= Factory::getDocument();
		$menu = $menus->getActive();

		$id = (int) @$menu->query['id'];
		$cid = (int) @$menu->query['cid'];

		if ($menu) {
			$this->params->def('page_heading', $this->params->get('page_title', $menu->title));
		}

		$title = $this->params->get('page_title', '');

		if (!empty($this->item->metatitle)) {
			$title = $this->item->metatitle;
		}

		$headingOverride = $this->params->get('item_heading_override', 0);

		if ($this->item->id > 0) {
			$heading = $this->item->heading ? trim((string)$this->item->heading): trim((string)$this->item->name);
			if ($headingOverride == '1') {
				$this->params->set('page_heading', $heading);
			}
		}

		if ($headingOverride == '1') {
			$this->params->set('show_page_heading', 1);
		}
		else if ($headingOverride == '-1') {
			$this->params->set('show_page_heading', 0);
		}

		$metakeys = null;
		$metadesc = null;

		if ($menu && ($menu->query['option'] != 'com_djcatalog2' || $menu->query['view'] == 'items' || $id != $this->item->id )) {

			if ($this->item->metatitle) {
				$title = $this->item->metatitle;
			}
			else if ($this->item->name) {
				$title = $this->item->name;
			}

			$category = $this->categories->get($this->item->cat_id);
			$menuCategory = $this->categories->get($cid);

			if ($category->id != $menuCategory->id && count($this->item->_categories_ids) > 1) {
				//$category = $menuCategory;
				$menuCategoryPath = $menuCategory->getPath();
				Joomla\Utilities\ArrayHelper::toInteger($menuCategoryPath);
				foreach($this->item->_categories_ids as $addCatId) {
					$addCat = $this->categories->get($addCatId);
					if (empty($addCat)) {
						break;
					}
					$addCatPath = $addCat->getPath();
					Joomla\Utilities\ArrayHelper::toInteger($addCatPath);
					if (in_array($menuCategory->id, $addCatPath)) {
						$category = $this->categories->get($addCatId);
						break;
					}
				}
			}

			$path = array(array('title' => $this->item->name, 'link' => ''));
			while (($menu->query['option'] != 'com_djcatalog2' || ($menu->query['view'] == 'items' && $cid != $category->id)) && $category->id > 0)
			{
				$path[] = array('title' => $category->name, 'link' => DJCatalogHelperRoute::getCategoryRoute($category->catslug));
				$category = $this->categories->get($category->parent_id);
			}

			$path = array_reverse($path);

			foreach ($path as $item)
			{
				$pathway->addItem($item['title'], $item['link']);
			}

		} else if (!empty($menu)) {
			if ($this->params->get('menu-meta_description')) {
				$metadesc = $this->params->get('menu-meta_description');
			}
			if ($this->params->get('menu-meta_keywords')) {
				$metakeys = $this->params->get('menu-meta_keywords');
			}
		}

		if (empty($title)) {
			$title = $app->getCfg('sitename');
		}
		elseif ($app->getCfg('sitename_pagetitles', 0)) {
			if ($app->getCfg('sitename_pagetitles', 0) == '2') {
				$title = Text::sprintf('JPAGETITLE', $title, $app->getCfg('sitename'));
			} else {
				$title = Text::sprintf('JPAGETITLE', $app->getCfg('sitename'), $title);
			}
		}
		$this->document->setTitle($title);

		if (!empty($this->item->metadesc))
		{
			$this->document->setDescription($this->item->metadesc);
			$metadesc = $this->item->metadesc;
		}
		elseif (!empty($metadesc))
		{
			$this->document->setDescription($metadesc);
		}

		if (!empty($this->item->metakey))
		{
			$this->document->setMetadata('keywords', $this->item->metakey);
		}
		elseif (!empty($metakeys))
		{
			$this->document->setMetadata('keywords', $metakeys);
		}


		if ($this->params->get('robots'))
		{
			$this->document->setMetadata('robots', $this->params->get('robots'));
		}

		// Preparing data for Social Networks

		$description = null;
		if ($this->item->metadesc) {
			$description = $this->item->metadesc;
		} else if (strip_tags($this->item->intro_desc) != '') {
			$description = $this->item->intro_desc;
		} else {
			$description = $this->item->description;
		}

		$description = Joomla\CMS\HTML\HTMLHelper::_('string.truncate', $description, 300, true, false);
		$item_images = DJCatalog2ImageHelper::getImages('item',$this->item->id);
		$url = Route::_(DJCatalogHelperRoute::getItemRoute($this->item->slug, $this->item->catslug), true, (Uri::getInstance()->isSSL() ? 1 : -1));

		$image_size = null;
		$image_url = null;

		if (isset($item_images[0])) {
			$image_path = DJCatalog2ImageHelper::getImagePath($item_images[0]->fullpath, 'fullscreen');
			$image_size = @getimagesize($image_path);
			$image_url = Uri::root(false).DJCATIMGPATH .'/'.$item_images[0]->path.'/'.$item_images[0]->name.'_f.'.$item_images[0]->ext;
		}

		// Facebook OG
		$this->document->addCustomTag('<meta property="og:title" content="'.trim((string)$title).'" />');
		if ($description) {
			$this->document->addCustomTag('<meta property="og:description" content="'.$description.'" />');
		}
		$this->document->addCustomTag('<meta property="og:url" content="'.$url.'" />');

		//if (isset($item_images[0])) {
		if ($image_url) {
			//$this->document->addCustomTag('<meta property="og:image" content="'.$item_images[0]->fullscreen.'" />');
			$this->document->addCustomTag('<meta property="og:image" content="'.$image_url.'" />');

			if (is_array($image_size) && count($image_size) > 1) {
				$this->document->addCustomTag('<meta property="og:image:width" content="'.$image_size[0].'" />');
				$this->document->addCustomTag('<meta property="og:image:height" content="'.$image_size[1].'" />');
			}
		}

		// Twitter Cards
		$this->document->addCustomTag('<meta property="twitter:card" content="summary" />');
		$this->document->addCustomTag('<meta property="twitter:title" content="'.trim((string)$title).'" />');
		if ($description) {
			$this->document->addCustomTag('<meta property="twitter:description" content="'.$description.'" />');
		}
		//if (isset($item_images[0])) {
		if ($image_url) {
			$this->document->addCustomTag('<meta property="twitter:image:src" content="'.$image_url.'" />');

			if (is_array($image_size) && count($image_size) > 1) {
				$this->document->addCustomTag('<meta property="twitter:image:width" content="'.$image_size[0].'" />');
				$this->document->addCustomTag('<meta property="twitter:image:height" content="'.$image_size[1].'" />');
			}
		}

	}
	protected function _preparePDF() {
		if (!defined('DOMPDF_ENABLE_REMOTE'))
		{
			define('DOMPDF_ENABLE_REMOTE', true);
		}

		$config = Factory::getConfig();
		$document = Factory::getDocument();

		$document->setMimeEncoding('application/pdf');

		if (!defined('DOMPDF_FONT_CACHE'))
		{
			define('DOMPDF_FONT_CACHE', $config->get('tmp_path'));
		}

		if (!defined('DOMPDF_DEFAULT_FONT'))
		{
			define('DOMPDF_DEFAULT_FONT', 'DejaVuSans');
		}

		require_once JPath::clean(JPATH_ROOT.'/libraries/vendor/dompdf/autoload.inc.php');

		if(ini_get('zlib.output_compression')) {
			ini_set('zlib.output_compression', 'Off');
		}

		$pdf =new Dompdf\Dompdf();

		ob_start();
		parent::display(null);
		$body = ob_get_contents();
		ob_end_clean();

		$document->_scripts = array();
		$document->_script = array();

		$head = '<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>'; //$document->getBuffer('head');

		$data = '<html><head>'.$head.'</head><body style="font-family: firefly, DejaVu Sans, sans-serif !important;">'.$body.'</body></html>';

		DJCatalog2HtmlHelper::setFullPaths($data);

		$pdf->load_html($data);
		$pdf->render();
		$pdf->stream(File::makeSafe($this->item->name) . '.pdf');
	}
}

?>