<?php
//error_reporting(0);

// Uncomment the line below if you have the error on sitemap: "XML Parsing Error: XML or text declaration not at start of entity" 
// This is just a workaround, you should find the module or file which is inserting the unwanted new line on your website.
//if (ob_get_contents()) ob_clean();

class ControllerFeedAdvancedSitemap extends Controller {
  
  private $final_file;
  private $temp_file;
  public $output;
  public $OC_V2;
  private $isSSL;
  private $generateOnly = false;
  
  public function __construct($registry) {
		$this->OC_V2 = substr(VERSION, 0, 1) == 2;
		parent::__construct($registry);
    $this->isSSL = (isset($this->request->server['HTTPS']) && (($this->request->server['HTTPS'] == 'on') || ($this->request->server['HTTPS'] == '1')));
    
    if (!empty($this->request->get['route']) && $this->request->get['route'] !== 'feed/advanced_sitemap') {
      $route = str_replace('feed/advanced_sitemap/','',$this->request->get['route']);
      $config = $this->config->get('advanced_sitemap_cfg');
      
      $temp_types = array();
      
      if (!empty($config['custom_links_include'])) {
        $custom_links_include = explode("\n", $config['custom_links_include']);
        
        foreach ($custom_links_include as $k => $v) {
          if (strpos($v, '@')!==false){
            $type = trim(explode('@',$v,2)[0]);
            if (empty($types[$type])) {
              $temp_types[$type] = 1;
            } else {
              $temp_types[$type] += 1;
            }
          }
        }
      }
      
      foreach ($temp_types as $k => $v) {
        if ($route == $k) {
          $this->response->redirect($this->url->link('feed/advanced_sitemap/custom','type='.$route));
        }
      }
    }
	}
  
	public function cron() {
    $this->generateOnly = true;
    $types = $this->index(true);
    
    echo '# Start sitemap generator - '. date('d-m-Y'). ' #<br/>';
    
    foreach($types as $type => $items) {
      if (in_array($type, array('image'))) {
        $limit = 20;
      } else {
        $limit = $this->config->get('advanced_sitemap_limit') ? $this->config->get('advanced_sitemap_limit') : 500;
      }
      
      $showPagination = ($items > $limit) ? true : false;
      $page = 0;
      
      if (!empty($_GET['t'])) file_put_contents(DIR_CACHE . 'sitemaps/cron.log', "\n".date('Y-m-d H:i:s'). '-Generate sitemaps store '.$this->config->get('config_store_id')."\n", FILE_APPEND | LOCK_EX);
      
      if ($items) {
        while ($items > 0) {
          
            // $this->request->get['lang'] = '';
            $this->request->get['page'] = ++$page;
            echo 'Generate sitemap '.$type.'-'.$page.'<br/>';
            
            if (!empty($_GET['t'])) file_put_contents(DIR_CACHE . 'sitemaps/cron.log', date('Y-m-d H:i:s'). '-Generate sitemap '.$type.'-p'.$page.' -t:'.$_GET['t']."\n", FILE_APPEND | LOCK_EX);
            
            $this->generate($type);
          $items -= $limit;
        }
      }
      
      unset($types[$type]);
    }
    
    echo '> Sitemaps successfully generated';
    
    if (!empty($_GET['t'])) file_put_contents(DIR_CACHE . 'sitemaps/cron.log', date('Y-m-d H:i:s'). '> Sitemaps successfully generated t:'.$_GET['t']."\n", FILE_APPEND | LOCK_EX);
    
    exit;
  }
  
	public function index($getSitemps = false) {
    if (!empty($this->request->get['lang']) && !$this->config->get('advanced_sitemap_lang_feeds')) {
      return new Action('error/not_found');
    }
    
    $config = $this->config->get('advanced_sitemap_cfg');
    
    $this->load->model('catalog/product');
    $this->load->model('catalog/category');
    
    $output = '<?xml version="1.0" encoding="utf-8"?>';
    $output .= '<?xml-stylesheet type="text/xsl" href="'.$this->url->link('feed/advanced_sitemap/xslindex', '', $this->isSSL).'"?>';
    $output .= '<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';
    
    $types = array();
    
    // count items
    if (!empty($config['product']['status'])) {
      $types['product'] = $this->get_product('', true);
    }
    
    if (!empty($config['category']['status'])) {
      $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "category c LEFT JOIN " . DB_PREFIX . "category_to_store c2s ON (c.category_id = c2s.category_id) WHERE c2s.store_id = '" . (int)$this->config->get('config_store_id') . "' AND c.status = '1'")->row;
      $types['category'] = $query['total'];
    }
    
    if (!empty($config['information']['status'])) {
      $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "information c LEFT JOIN " . DB_PREFIX . "information_to_store c2s ON (c.information_id = c2s.information_id) WHERE c2s.store_id = '" . (int)$this->config->get('config_store_id') . "' AND c.status = '1'")->row;
      $types['information'] = $query['total']+1;
    }
    
    if (!empty($config['image']['status'])) {
      //$query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "information c LEFT JOIN " . DB_PREFIX . "information_to_store c2s ON (c.information_id = c2s.information_id) WHERE c2s.store_id = '" . (int)$this->config->get('config_store_id') . "' AND c.status = '1'")->row;
      $types['image'] = $this->get_image('', true);
    }
    
    if (!empty($config['manufacturer']['status'])) {
      $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "manufacturer m LEFT JOIN " . DB_PREFIX . "manufacturer_to_store m2s ON (m.manufacturer_id = m2s.manufacturer_id) WHERE m2s.store_id = '" . (int)$this->config->get('config_store_id') . "'")->row;
      $types['brand'] = $query['total'];
    }
    
    if (!empty($config['journal']['status'])) {
      //$query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "manufacturer m LEFT JOIN " . DB_PREFIX . "manufacturer_to_store m2s ON (m.manufacturer_id = m2s.manufacturer_id) WHERE m2s.store_id = '" . (int)$this->config->get('config_store_id') . "'")->row;
      //$types['journal'] = $query['total'];
      $types['journal'] = 1;
      //$output .= '<journal>'.$types['brand'].'</journal>';
    }

    if ($getSitemps) {
      return $types;
    }
    
    if (!empty($config['custom_links_include'])) {
      $custom_links_include = explode("\n", $config['custom_links_include']);
      foreach ($custom_links_include as $k => $v) {
        if (strpos($v, '@')!==false) {
          $type = trim(explode('@',$v,2)[0]);
          if (empty($types[$type])) {
            $types[$type] = 1;
          } else {
            $types[$type] += 1;
          }
        }
      }
    }
    
    # extra_sitemap_type

    foreach($types as $type => $items) {
      if (in_array($type, array('image'))) {
        $limit = 20;
      } else {
        $limit = $this->config->get('advanced_sitemap_limit') ? $this->config->get('advanced_sitemap_limit') : 500;
      }
      
      $showPagination = ($items > $limit) ? true : false;
      $page = 0;
      
      $extra_where = '';
    
      if ($type == 'product' && !empty($config['in_stock'])) {
        $extra_where = " AND p.quantity > 0";
      }
      
      if ($items) {
        while ($items > 0) {
          // get lastmod date
          $lastmod = date('Y-m-d');
          if ($type == 'product') {
            $limits = $config;
            $limits = array();
            $limits['start'] = $page*$limit;
            $limits['limit'] = $limit;
            
            $lastmod = $this->get_product($limits, false, true);
            
            if (!empty($lastmod) && !(strpos($lastmod, '0000-00-00') !== false)) {
              $lastmod = substr($lastmod, 0, strpos($lastmod, ' '));
            } else {
              $lastmod = date('Y-m-d');
            }
          }
           else
          if (in_array($type, array('product_', 'category'))) {
            $date_query = $this->db->query(
              "SELECT MAX(t1.date_modified) as lastmod
               FROM (SELECT p.".$type."_id, date_modified FROM " . DB_PREFIX . $type ." p 
                       LEFT JOIN " . DB_PREFIX . $type . "_to_store p2s ON (p.".$type."_id = p2s.".$type."_id)
                       LEFT JOIN " . DB_PREFIX . $type . "_description pd ON (p.".$type."_id = pd.".$type."_id)
                       WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p.status = '1' ".($type == 'product' ? 'AND p.date_available <= NOW()' : '')."
                        AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "' ".$extra_where."
                       LIMIT " . (int) ($page*$limit) . "," . (int)$limit . ") AS t1")->row;
            
            if (!empty($date_query['lastmod']) && !(strpos($date_query['lastmod'], '0000-00-00') !== false)) {
              $lastmod = substr($date_query['lastmod'], 0, strpos($date_query['lastmod'], ' '));
            }
          }
          
          $output .= '  <sitemap>';
          if (!empty($this->request->get['lang'])) {
            $output .= '    <loc><![CDATA[' . html_entity_decode($this->url->link('feed/advanced_sitemap/'.$type, 'lang='.$this->request->get['lang'].($showPagination ? '&page='.++$page : ''), $this->isSSL), ENT_COMPAT, 'UTF-8').']]></loc>';
          } else {
            $output .= '    <loc><![CDATA[' . html_entity_decode($this->url->link('feed/advanced_sitemap/'.$type, ($showPagination ? 'page='.++$page : ''), $this->isSSL), ENT_COMPAT, 'UTF-8').']]></loc>';
          }
          
          $output .= '    <lastmod>'. $lastmod .'</lastmod>';
          $output .= '  </sitemap>';
          
          $items -= $limit;
        }
      }
    }
    
    $output .= '</sitemapindex>';
    
    $this->renderFeed($output);
  }
  
  public function product() {
    $this->generate('product');
  }
  
	public function category() {
    $this->generate('category');
  }
  
  public function information() {
    $this->generate('information');
  }
  
  public function image() {
    $this->generate('image');
  }
  
  public function brand() {
    $this->generate('brand');
  }
  
  public function journal() {
    $this->generate('journal');
  }
  
  public function custom() {
    $route = $this->request->get['type'];
    $this->generate($route, true);
  }

  # extra_sitemap_method

	public function generate($type, $custom_sitemap_type = false) {
    ini_set('memory_limit', -1);
    
    if (isset($this->request->get['grid'])) {
      $grid = '_grid';
    } else {
      $grid = '';
    }
    
    $page = 1;
    if (!empty($this->request->get['page'])) {
      $page = (int) $this->request->get['page'];
    }
    
    /*
    if ($this->config->get('config_store_id')) {
      $file = DIR_CACHE . 'sitemaps/' . $this->config->get('config_store_id') . '-' . $type . $grid . '-' . $page . '.xml';
    } else {
      $file = DIR_CACHE . 'sitemaps/' . $type . $grid . '-' . $page . '.xml';
    }
    */
    
    if (!empty($this->request->get['lang'])) {
      $request_lang = '-' . $this->request->get['lang'];
    } else {
      $request_lang = '';
    }

    if ($this->config->get('config_store_id')) {
      $file = DIR_CACHE . 'sitemaps/' . $this->config->get('config_store_id') . '-' . $type . $request_lang . $grid . '-' . $page . '.xml';
    } else {
      $file = DIR_CACHE . 'sitemaps/' . $type . $request_lang . $grid . '-' . $page . '.xml';
    }
    
    if ($type == 'brand') {
      $type = 'manufacturer';
    }
    
    $this->start_time = microtime(true)*1000;
    
    $config = $this->config->get('advanced_sitemap_cfg');
    
    // custom links handle
    $custom_links_exclude = isset($config['custom_links_exclude']) ? explode("\n", $config['custom_links_exclude']) : array();
    $custom_links_include = isset($config['custom_links_include']) ? explode("\n", $config['custom_links_include']) : array();
    
    $fullsize_img = !empty($config['fullsize_img']);
    $display_img = !empty($config['display_img']) || $grid;
    $additional_img = !empty($config['additional_img']);
    $main_img = !empty($config['img']);
    
    $config = isset($config[$type]) ? $config[$type] : array();
    $limit = $this->config->get('advanced_sitemap_limit') ? $this->config->get('advanced_sitemap_limit') : 500;
    
    if ($grid) {
      $limit = 99999999;
    }
    
    if ($custom_sitemap_type) {
      $config['status'] = '1';
      $config['freq'] = 'weekly';
      $config['priority'] = '0.8';
    }

		if (empty($config['status'])) {
      die('This feed is not active');
    }
    
    if (!is_dir(DIR_CACHE . 'sitemaps')) {
      mkdir(DIR_CACHE . 'sitemaps');
    }
    
    if (empty($config['cache_delay'])) {
      switch ($config['freq']) {
        case 'always':
          $config['cache_delay'] = 0;
          $config['cache_unit'] = 'minute';
        break;
        case 'hourly':
          $config['cache_delay'] = 50;
          $config['cache_unit'] = 'minute';
        break;
        case 'daily':
          $config['cache_delay'] = 23;
          $config['cache_unit'] = 'hour';
        break;
        case 'weekly':
          $config['cache_delay'] = 6;
          $config['cache_unit'] = 'day';
        break;
        case 'monthly':
          $config['cache_delay'] = 26;
          $config['cache_unit'] = 'day';
        break;
        case 'yearly':
          $config['cache_delay'] = 11;
          $config['cache_unit'] = 'month';
        break;
        case 'never':
          $config['cache_delay'] = 1337;
          $config['cache_unit'] = 'year';
        break;
      }
    }
    
    if (!$this->generateOnly && file_exists($file) && (filemtime($file) > strtotime('-'. $config['cache_delay'] .' ' . $config['cache_unit']))) {
      $this->display($file);
    }
    
    
    //$this->load->model('catalog/product');
    
    $this->load->model('tool/seo_package');
    $this->load->model('tool/image');

    $this->load->model('localisation/language');
    $languages = array();
    $results = $this->model_localisation_language->getLanguages();
    
    $fullcode = (isset($this->request->get['lang']) && strlen($this->request->get['lang']) == 2) ? false : true;
    
    foreach ($results as $result) {
      if ($result['status']) {
        $languages[($fullcode ? $result['code'] : substr($result['code'], 0, 2))] = array(
          'language_id' => $result['language_id'],
          'code' => $result['code']
        );
        
        // set current language to default
        //if ($this->config->get('advanced_sitemap_default_lang') == $result['code']) {
        if ($this->config->get('config_language') == $result['code']) {
          $this->config->set('config_language_id', $result['language_id']);
          $this->session->data['language'] = $result['code'];
        }
      }
    }
    
    $this->languages = $languages;
    
    // save current language id
    $current_lang_id = $this->config->get('config_language_id');
    $current_lang_code = $this->session->data['language'];
    
    
    $feed_lang = false;

    if (!empty($this->request->get['lang']) && in_array($this->request->get['lang'], array_keys($languages))) {
      $feed_lang = $this->request->get['lang'];
      $this->config->set('config_language_id', $languages[$feed_lang]['language_id']);
      $this->session->data['language'] = $languages[$feed_lang]['code'];
      $hreflang = false;
    } else {
      //$hreflang = $this->config->get('mlseo_hreflang');
      if (count($this->languages) > 1 && $this->config->get('advanced_sitemap_hreflang')) {
        $hreflang = true;
      } else {
        $hreflang = false;
      }
    }
      
    if (!empty($config['language'])) {
      $this->config->set('config_language_id', $config['language']);
    }
    
    $config['hreflang'] = $hreflang;
    
    // set file header
    $output = '<?xml version="1.0" encoding="utf-8"?>' . "\n";
    $output .= '<?xml-stylesheet type="text/xsl" href="'.$this->url->link('feed/advanced_sitemap/xsl'.$grid, 'type='.$type . ($feed_lang ? '&lang='.$feed_lang:''), $this->isSSL).'"?>' . "\n";
    $output .= '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">' . "\n";
    
    $items = array();
    
    if (in_array($type, array('image'))) {
      $limit = 20;
    }
    
    if (in_array($type, array('journal'))) {
      $output .= $this->{'generate_'.$type}(array('start' => ($page-1)*$limit, 'limit' => $limit), $config, $custom_links_exclude);
    } elseif ($custom_sitemap_type) {
      foreach ($custom_links_include as $k => $v) {
        $custom_args = explode('@',$v, 2);
        $custom_type = trim($custom_args[0]);
        $custom_link = trim($custom_args[1]);

        if ($type == $custom_type) {
          $items[$k] = $custom_link;
        }
        //var_dump($items);die;
      }
    } else {
      $items = $this->{'get_'.$type}(array('start' => ($page-1)*$limit, 'limit' => $limit));
      
      if (!empty($_GET['t'])) file_put_contents(DIR_CACHE . 'sitemaps/cron.log', date('Y-m-d H:i:s'). ' - get_'.$type.'() - start '.(($page-1)*$limit).' - limit '. $limit."\n", FILE_APPEND | LOCK_EX);
    }
    
    //$products = $this->model_catalog_product->getProducts(array('start' => $offset, 'limit' => $limit));
    
    if ($type == 'product') {
      if ($this->config->get('theme_' . $this->config->get('config_theme') . '_image_popup_width')) {
        $img_width = $this->config->get('theme_' . $this->config->get('config_theme') . '_image_popup_width');
        $img_height = $this->config->get('theme_' . $this->config->get('config_theme') . '_image_popup_height');
      } else if ($this->config->get($this->config->get('config_theme') . '_image_popup_width')) {
        $img_width = $this->config->get($this->config->get('config_theme') . '_image_popup_width');
        $img_height = $this->config->get($this->config->get('config_theme') . '_image_popup_height');
      } else if ($this->config->get('config_image_popup_width')) {
        $img_width = $this->config->get('config_image_popup_width');
        $img_height = $this->config->get('config_image_popup_height');
      } else {
        $img_width = $img_height = 500;
      }
    }
      
    if ($type == 'information') {
      $output .= '<url>';
      $output .= '<loc><![CDATA[' . $this->url->link('common/home') . ']]></loc>';
      $output .= '<changefreq>'.$config['freq'].'</changefreq>';
      $output .= '<priority>'.$config['priority'].'</priority>';
      $output .= '</url>';
    }
    
    foreach ($items as $item) {
      if (isset($item['meta_robots']) && ($item['meta_robots'] == 'none' || $item['meta_robots'] == 'noindex')) continue;
      $custom_url = '';
      if ($type == 'product') {
        $custom_url = $this->url->link('product/product','product_id='.$item['product_id'],'SSL');
      } elseif ($type == 'category') {
        $path = $this->config->get('mlseo_fpp_cat_canonical') ? $this->fullCategoryPath($item) : '';

        $custom_url = $this->url->link('product/category','path='.($path ? $path . '_' : '').$item['category_id'],'SSL');
      } elseif ($type == 'information') {
        $custom_url = $this->url->link('information/information','information_id='.$item['information_id'],'SSL');
      } elseif ($type == 'manufacturer') {
        $custom_url = $this->url->link('product/manufacturer/info','manufacturer_id='.$item['manufacturer_id'],'SSL');
      }

      $custom_skip = false;

      if (!empty($custom_links_exclude[0])) {
        foreach ($custom_links_exclude as $k => $v) {
          //if ($custom_skip && trim($v) == $custom_url) {
          if (!$custom_skip && trim($v) == $custom_url) {
            $custom_skip = true;
          }
        }
      }

      if ($custom_skip) {
        continue;
      }
      
      $img_loc = false;
      if ($type == 'product' && !empty($item['image']) && ($main_img || $display_img)) {
        if ($fullsize_img) {
          $img_loc = HTTP_SERVER.'image/'.$item['image'];
        } else {
          $img_loc = $this->model_tool_image->resize($item['image'], $img_width, $img_height);
        }
      }
      
      if ($img_loc && $display_img) {
        //$output .= '<thumb>' . htmlspecialchars($this->model_tool_image->resize($item['image'], 50, 50)) . '</thumb>';
        $output .= '<url thumb="' . htmlspecialchars($this->model_tool_image->resize($item['image'], 50, 50), ENT_COMPAT, 'UTF-8') . '">';
      } else {
        $output .= '<url>';
      }
      
      if ($type == 'category') {
        $path = $this->config->get('mlseo_fpp_cat_canonical') ? $this->fullCategoryPath($item) : '';
        $output .= '<loc><![CDATA[' .html_entity_decode($this->url->link('product/category', 'path='. ($path ? $path . '_' : '') . $item['category_id']), ENT_COMPAT, 'UTF-8'). ']]></loc>';
      } else if ($type == 'manufacturer') {
        $output .= '<loc><![CDATA[' .html_entity_decode($this->url->link('product/manufacturer/info', 'manufacturer_id=' . $item['manufacturer_id']), ENT_COMPAT, 'UTF-8'). ']]></loc>';
      } else if ($type == 'information') {
        $output .= '<loc><![CDATA[' .html_entity_decode($this->url->link('information/information', 'information_id=' . $item['information_id']), ENT_COMPAT, 'UTF-8'). ']]></loc>';
      } else if ($custom_sitemap_type) {
        if (strpos($item, 'http') !== false) {
          $output .= '<loc><![CDATA['.html_entity_decode(trim($item), ENT_COMPAT, 'UTF-8').']]></loc>';
        } else {
          $output .= '<loc><![CDATA['.html_entity_decode($this->url->link($item), ENT_COMPAT, 'UTF-8').']]></loc>';
        }
      } else {
        $output .= '<loc><![CDATA[' .html_entity_decode($this->url->link('product/'.$type, $type.'_id=' . $item[$type.'_id']), ENT_COMPAT, 'UTF-8'). ']]></loc>';
      }
      
      if (!empty($hreflang)) {
        $hreflangs = $this->model_tool_seo_package->hrefLang('product/'.$type, $type.'_id=' . $item[$type.'_id']);
        if ($type == 'category') {
          $hreflangs = $this->model_tool_seo_package->hrefLang('product/category', 'path='. ($path ? $path . '_' : '') . $item['category_id']);
        } else if ($type == 'manufacturer') {
          $hreflangs = $this->model_tool_seo_package->hrefLang('product/manufacturer/info', 'manufacturer_id=' . $item['manufacturer_id']);
        } else if ($type == 'information') {
          $hreflangs = $this->model_tool_seo_package->hrefLang('information/information', 'information_id=' . $item['information_id']);
        } else if ($custom_sitemap_type) {
          if (strpos($item, 'http') !== false) {
            $hreflangs = array();
          } else {
            $hreflangs = $this->model_tool_seo_package->hrefLang($item);
          }
          $hreflangs = '<xhtml:link rel="alternate" hreflang="' . $lang['code'] . '" href="' . $item . '"/>';
        } else {
          $hreflangs = $this->model_tool_seo_package->hrefLang('product/'.$type, $type.'_id=' . $item[$type.'_id']);
        }
        
        if (!empty($hreflangs)) {
          foreach ($hreflangs as $href) {
            $output .= '<xhtml:link rel="alternate" hreflang="' . $href['hreflang'] . '" href="' . $href['href'] . '"/>';
          }
        }
        /*
        foreach ($languages as $lang) {
          $this->config->set('config_language_id', $lang['language_id']);
          $this->session->data['language'] = $lang['code'];
          
          if ($type == 'category') {
            //$path = $this->fullCategoryPath($item);
            $output .= '<xhtml:link rel="alternate" hreflang="' . $lang['code'] . '" href="' . $this->url->link('product/category', 'path='. ($path ? $path . '_' : '') . $item['category_id']) . '"/>';
          } else if ($type == 'manufacturer') {
            $output .= '<xhtml:link rel="alternate" hreflang="' . $lang['code'] . '" href="' . $this->url->link('product/manufacturer/info', 'manufacturer_id=' . $item['manufacturer_id']) . '"/>';
          } else if ($type == 'information') {
            $output .= '<xhtml:link rel="alternate" hreflang="' . $lang['code'] . '" href="' . $this->url->link('information/information', 'information_id=' . $item['information_id']) . '"/>';
          } else if ($custom_sitemap_type) {
            $output .= '<xhtml:link rel="alternate" hreflang="' . $lang['code'] . '" href="' . $item . '"/>';
          } else {
            $output .= '<xhtml:link rel="alternate" hreflang="' . $lang['code'] . '" href="' . $this->url->link('product/'.$type, $type.'_id=' . $item[$type.'_id']) . '"/>';
          }
        }
        
        // restore current language id
        $this->config->set('config_language_id', $current_lang_id);
        $this->session->data['language'] = $current_lang_code;
        */
      }
      
      if ($img_loc) {
        if (isset($this->request->get['grid'])) {
          $output .= '<thumb>' . htmlspecialchars($this->model_tool_image->resize($item['image'], 160, 120), ENT_COMPAT, 'UTF-8') . '</thumb>';
        }
        
        if ($main_img) {
          $output .= '<image:image>';
          $output .= '<image:loc>' . htmlspecialchars($img_loc, ENT_COMPAT, 'UTF-8') . '</image:loc>';
          $output .= '<image:caption>' . htmlspecialchars($item['name'], ENT_COMPAT, 'UTF-8') . '</image:caption>';
          $output .= '<image:title>' . htmlspecialchars($item['name'], ENT_COMPAT, 'UTF-8') . '</image:title>';
          $output .= '</image:image>';
        }
      }
      
      if ($additional_img && $type == 'product' && !empty($item['additional_images']) && $img_loc = $this->model_tool_image->resize($item['image'], $img_width, $img_height)) {
        foreach ($item['additional_images'] as $image) {
          $img_loc = false;
          if ($fullsize_img) {
            $img_loc = HTTP_SERVER.'image/'.$image;
          } else {
            $img_loc = $this->model_tool_image->resize($image, $img_width, $img_height);
          }
          
          if ($img_loc) {
            $output .= '<image:image>';
            $output .= '<image:loc>' . htmlspecialchars($img_loc, ENT_COMPAT, 'UTF-8') . '</image:loc>';
            $output .= '<image:caption>' . htmlspecialchars($item['name'], ENT_COMPAT, 'UTF-8') . '</image:caption>';
            $output .= '<image:title>' . htmlspecialchars($item['name'], ENT_COMPAT, 'UTF-8') . '</image:title>';
            $output .= '</image:image>';
          }
        }
      }
      
      $output .= '<changefreq>'.$config['freq'].'</changefreq>';
      $output .= '<priority>'.$config['priority'].'</priority>';
      
      if (!empty($item['date_modified']) && !(strpos($item['date_modified'], '0000-00-00') !== false)) {
        $output .= '<lastmod>'. substr($item['date_modified'], 0, strpos($item['date_modified'], ' ')) .'</lastmod>';
      } else if (!empty($item['date_added']) && !(strpos($item['date_added'], '0000-00-00') !== false)) {
        $output .= '<lastmod>'. substr($item['date_added'], 0, strpos($item['date_added'], ' ')) .'</lastmod>';
      } else {
        $output .= '<lastmod>'. date('Y-m-d') .'</lastmod>';
      }
      
      $output .= '</url>' . "\n";
    }

    $output .= '</urlset>';
    
    // $end_time = microtime(true)*1000;
    // var_dump('time: '. ((int)($end_time - $this->start_time) /1000). 'ms');
    // var_dump('mem peak: ' . memory_get_peak_usage());
    
    /*
    if (!$config['cache_delay'] && $config['freq'] != 'always') {
      file_put_contents($file, $output);
    }
    */
    
    if (!empty($_GET['t'])) file_put_contents(DIR_CACHE . 'sitemaps/cron.log', date('Y-m-d H:i:s'). ' - process done save file : '.$file."\n", FILE_APPEND | LOCK_EX);
    
    if (!empty($items)) {
      file_put_contents($file, $output);
    }
    
    if ($this->generateOnly) {
      return;
    }
    
    $this->renderFeed($output);
	}
  
  // Callback
  public function callback() {
    //file_put_contents('system/cache/met.log', "\n callback called \n", FILE_APPEND);
    //file_put_contents($this->temp_file, $this->output, FILE_APPEND);
  }
  
  // Output file
  private function display($file) {
    header('Content-Type: application/xml');
    header('Cache-Control: must-revalidate');
    header('Content-Length: ' . filesize($file));
    readfile($file);
    exit;
  }
  
  private function renderFeed($output) {
    // Disable gzip compression to avoid ERR_CONTENT_DECODING_FAILED
    @ini_set('zlib.output_compression', 'Off');
    @ini_set('output_buffering', 'Off');
    @ini_set('output_handler', '');
    if (function_exists('apache_setenv')) {
      @apache_setenv('no-gzip', 1);
    }
    
    $this->response->addHeader('Content-Type: application/xml');
		$this->response->setOutput($output);
  }
  
  private function get_product($data, $count = false, $get_date = false) {
    // save current language id
		$current_lang_id = $this->config->get('config_language_id');
		$current_lang_code = $this->session->data['language'];
    $config = $this->config->get('advanced_sitemap_cfg');
    
    $extra_where = '';
    
    if (!empty($config['in_stock'])) {
      $extra_where = " AND p.quantity > 0";
    }
    
    if ($get_date) {
      $lastmod = $this->db->query("SELECT MAX(t1.date_modified) as lastmod FROM (
          SELECT  p.date_modified as date_modified FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "'" . $extra_where . " LIMIT " . (int)$data['start'] . "," . (int)$data['limit']."
        ) AS t1")->row;
        
      return $lastmod['lastmod'];
    }
    
    if ($count) {
      $total = $this->db->query("SELECT COUNT(DISTINCT p.product_id) AS total FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "'" . $extra_where)->row;
      return $total['total'];
    }
    
    if (1) {
      //$rows = $this->db->query("SELECT DISTINCT *, pd.name AS name, p.image, m.name AS manufacturer, (SELECT price FROM " . DB_PREFIX . "product_discount pd2 WHERE pd2.product_id = p.product_id AND pd2.customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND pd2.quantity = '1' AND ((pd2.date_start = '0000-00-00' OR pd2.date_start < NOW()) AND (pd2.date_end = '0000-00-00' OR pd2.date_end > NOW())) ORDER BY pd2.priority ASC, pd2.price ASC LIMIT 1) AS discount, (SELECT price FROM " . DB_PREFIX . "product_special ps WHERE ps.product_id = p.product_id AND ps.customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special, (SELECT points FROM " . DB_PREFIX . "product_reward pr WHERE pr.product_id = p.product_id AND customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "') AS reward, (SELECT ss.name FROM " . DB_PREFIX . "stock_status ss WHERE ss.stock_status_id = p.stock_status_id AND ss.language_id = '" . (int)$this->config->get('config_language_id') . "') AS stock_status, (SELECT wcd.unit FROM " . DB_PREFIX . "weight_class_description wcd WHERE p.weight_class_id = wcd.weight_class_id AND wcd.language_id = '" . (int)$this->config->get('config_language_id') . "') AS weight_class, (SELECT lcd.unit FROM " . DB_PREFIX . "length_class_description lcd WHERE p.length_class_id = lcd.length_class_id AND lcd.language_id = '" . (int)$this->config->get('config_language_id') . "') AS length_class, (SELECT AVG(rating) AS total FROM " . DB_PREFIX . "review r1 WHERE r1.product_id = p.product_id AND r1.status = '1' GROUP BY r1.product_id) AS rating, (SELECT COUNT(*) AS total FROM " . DB_PREFIX . "review r2 WHERE r2.product_id = p.product_id AND r2.status = '1' GROUP BY r2.product_id) AS reviews, p.sort_order FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) LEFT JOIN " . DB_PREFIX . "manufacturer m ON (p.manufacturer_id = m.manufacturer_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "'" . $extra_where . " LIMIT " . (int)$data['start'] . "," . (int)$data['limit'])->rows;
      $rows = $this->db->query("SELECT DISTINCT p.product_id, pd.name AS name, p.image, date_modified FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "'" . $extra_where . " LIMIT " . (int)$data['start'] . "," . (int)$data['limit'])->rows;
      
      foreach ($rows as $k => $row) {
        $rows[$k]['additional_images'] = array();
        $images = $this->db->query("SELECT image FROM " . DB_PREFIX . "product_image WHERE product_id = '" . $row['product_id'] . "' ORDER BY sort_order ASC")->rows;
        
        foreach ($images as $img) {
          if (!empty($img['image'])) {
            $rows[$k]['additional_images'][] = $img['image'];
          }
        }
      }
    }
    
    return $rows;
  }
  
  private function get_image($data, $count = false) {
    // save current language id
		$current_lang_id = $this->config->get('config_language_id');
		$current_lang_code = $this->session->data['language'];
    $config = $this->config->get('advanced_sitemap_cfg');
    
    $extra_where = $limit = '';
    
    if (!empty($config['in_stock'])) {
      $extra_where = " AND p.quantity > 0";
    }
    
    if (!$count) {
      $limit = "LIMIT " . (int)$data['start'] . "," . (int)$data['limit'];
    }
    
    // image query
    $query = $this->db->query("
      SELECT p.product_id, i.image, p.image as main_image
        FROM " . DB_PREFIX . "product p
        LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id)
        LEFT JOIN " . DB_PREFIX . "product_image i ON (p.product_id = i.product_id)
      WHERE p.status = '1'
        AND p.date_available <= NOW()
        AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "'
        AND (i.image <> '' OR p.image <> '')
        " . $extra_where . " " . $limit)->rows;
    
    // count total images
    if ($count) {
      $total = 0;
      
      foreach ($query as $image) {
        $image['main_image'] AND $total++;
        $image['image'] AND $total++;
      }
      
      return $total;
    }
    
    // prepare data array
    $images = array();
    
    foreach ($query as $image) {
      if ($image['main_image']) {
        $images['m'.$image['product_id']] = array('product_id' => $image['product_id'], 'image' => $image['main_image']);
      }
      
      if ($image['image']) {
        $images[] = array('product_id' => $image['product_id'], 'image' => $image['image']);
      }
    }
    
    return $images;
  }
  
  private function get_category($data) {
    $rows = $this->db->query("SELECT * FROM " . DB_PREFIX . "category c LEFT JOIN " . DB_PREFIX . "category_description cd ON (c.category_id = cd.category_id) LEFT JOIN " . DB_PREFIX . "category_to_store c2s ON (c.category_id = c2s.category_id) WHERE cd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND c2s.store_id = '" . (int)$this->config->get('config_store_id') . "'  AND c.status = '1' ORDER BY c.sort_order, LCASE(cd.name) LIMIT " . (int)$data['start'] . "," . (int)$data['limit'])->rows;
    return $rows;
  }
  
  private function get_information($data) {
    $this->load->model('catalog/information');

    $rows = $this->model_catalog_information->getInformations($data);
    
    return $rows;
  }
  
  private function get_manufacturer($data) {
    $this->load->model('catalog/manufacturer');

    $rows = $this->model_catalog_manufacturer->getManufacturers($data);
    
    return $rows;
  }

  private function generate_journal($data, $config, $custom_links_exclude = array()) {
    $output = '';
    
    if (!is_dir(DIR_APPLICATION . 'model/journal2') && !is_dir(DIR_APPLICATION . 'model/journal3')) return '';
    
    $journalVersion = is_dir(DIR_APPLICATION . 'model/journal3') ? 'journal3' : 'journal2';
    
    // save current language id
    $current_lang_id = $this->config->get('config_language_id');
    $current_lang_code = $this->session->data['language'];

    $output .= '<url>';
    $output .= '<loc><![CDATA[' .html_entity_decode($this->url->link($journalVersion.'/blog', ''), ENT_COMPAT, 'UTF-8'). ']]></loc>';
    
    if (!empty($config['hreflang'])) {
      foreach ($this->languages as $lang) {
        $this->config->set('config_language_id', $lang['language_id']);
        $this->session->data['language'] = $lang['code'];
        $this->load->model($journalVersion.'/blog');
        $output .= '<xhtml:link rel="alternate" hreflang="' . $lang['code'] . '" href="' . $this->url->link($journalVersion.'/blog') . '"/>';
      }
      
      // restore current language id
      $this->config->set('config_language_id', $current_lang_id);
      $this->session->data['language'] = $current_lang_code;
    }
    
    $blog_date = $this->db->query("SELECT date_created FROM `".DB_PREFIX.$journalVersion."_blog_post` WHERE status = 1 ORDER BY date_created DESC LIMIT 1")->row;
    
    $output .= '<changefreq>'.$config['freq'].'</changefreq>';
    $output .= '<priority>'.$config['priority'].'</priority>';
    $output .= '<lastmod>'. (!empty($blog_date['date_created']) ? substr($blog_date['date_created'], 0, strpos($blog_date['date_created'], ' ')) : date('Y-m-d')) .'</lastmod>';
    $output .= '</url>' . "\n";
      
    foreach ($this->{'model_'.$journalVersion.'_blog'}->getCategories() as $category) {
      $journal_category_url = $this->url->link($journalVersion.'/blog', 'journal_blog_category_id=' . $category['category_id']);
      $custom_skip = false;
      if (!empty($custom_links_exclude[0])) {
        foreach ($custom_links_exclude as $k => $v) {
          //if ($custom_skip && trim($v) == $custom_url) {
          if (!$custom_skip && trim($v) == $journal_category_url) {
            $custom_skip = true;
          }
        }
      }
      if ($custom_skip) {
        continue;
      }

      $output .= '<url>';
      $output .= '<loc><![CDATA[' .html_entity_decode($journal_category_url, ENT_COMPAT, 'UTF-8'). ']]></loc>';
      
      if (!empty($config['hreflang'])) {
        foreach ($this->languages as $lang) {
          $this->config->set('config_language_id', $lang['language_id']);
          $this->session->data['language'] = $lang['code'];

          $output .= '<xhtml:link rel="alternate" hreflang="' . $lang['code'] . '" href="' . $journal_category_url . '"/>';
        }
        
        // restore current language id
        $this->config->set('config_language_id', $current_lang_id);
        $this->session->data['language'] = $current_lang_code;
      }
      
      $blog_date = $this->db->query("SELECT p.date_created FROM `".DB_PREFIX.$journalVersion."_blog_post` p LEFT JOIN `".DB_PREFIX.$journalVersion."_blog_post_to_category` p2c ON p.post_id = p2c.post_id WHERE status = 1 AND p2c.category_id = " . (int)$category['category_id'] . " ORDER BY date_created DESC LIMIT 1")->row;
      
      $output .= '<changefreq>'.$config['freq'].'</changefreq>';
      $output .= '<priority>'.$config['priority'].'</priority>';
      $output .= '<lastmod>'. (!empty($blog_date['date_created']) ? substr($blog_date['date_created'], 0, strpos($blog_date['date_created'], ' ')) : date('Y-m-d')) .'</lastmod>';
      $output .= '</url>' . "\n";
    }

    foreach ($this->{'model_'.$journalVersion.'_blog'}->getPosts() as $post) {
      $journal_post_url = $this->url->link($journalVersion.'/blog/post', 'journal_blog_post_id=' . $post['post_id']);
      $custom_skip = false;
      if (!empty($custom_links_exclude[0])) {
        foreach ($custom_links_exclude as $k => $v) {
          //if ($custom_skip && trim($v) == $custom_url) {
          if (!$custom_skip && trim($v) == $journal_post_url) {
            $custom_skip = true;
          }
        }
      }
      if ($custom_skip) {
        continue;
      }

      $output .= '<url>';
      $output .= '<loc><![CDATA[' .$journal_post_url. ']]></loc>';
      
      if (!empty($config['hreflang'])) {
        foreach ($this->languages as $lang) {
          $this->config->set('config_language_id', $lang['language_id']);
          $this->session->data['language'] = $lang['code'];

          $output .= '<xhtml:link rel="alternate" hreflang="' . $lang['code'] . '" href="' . $journal_post_url . '"/>';
        }
        
        // restore current language id
        $this->config->set('config_language_id', $current_lang_id);
        $this->session->data['language'] = $current_lang_code;
      }
    
      $output .= '<changefreq>'.$config['freq'].'</changefreq>';
      $output .= '<priority>'.$config['priority'].'</priority>';
      $output .= '<lastmod>'. substr($post['date'], 0, strpos($post['date'], ' ')) .'</lastmod>';
      $output .= '</url>' . "\n";
    }
    
    return $output;
  }
  
  private function fullCategoryPath($category) {
    $path = '';
    
    while (!empty($category['parent_id'])) {
      $path = $category['parent_id'] . '_' . $path;
      $category = $this->db->query("SELECT parent_id FROM " . DB_PREFIX . "category WHERE category_id = '" . $category['parent_id']. "'")->row;
    }
    
    return rtrim($path, '_');
  }
  
  public function xslindex() {
    $this->xsl('index');
  }
  
  public function xsl_grid() {
    $this->xsl('grid');
  }
  
  public function xsl($xsl = '') {
    $this->response->addHeader('Content-Type: application/xml; charset=utf-8');
    $data['title'] = $xsl == 'index' ? 'Sitemap Index' : 'XML Sitemap';
    $data['index'] = $xsl == 'index' ? true : false;
    $data['type'] = isset($this->request->get['type']) ? $this->request->get['type'] : '';
    $data['index_link'] = $this->url->link('feed/advanced_sitemap', (!empty($this->request->get['lang']) ? 'lang='.$this->request->get['lang']:''), $this->isSSL);
    
    $data['cfg'] = $this->config->get('advanced_sitemap_cfg');
    
    if ($xsl == 'index') {
      $config = $this->config->get('advanced_sitemap_cfg');
      
      $data['count'] = array();
      
      // count items
      if (!empty($config['product']['status'])) {
        $data['count']['product'] = $this->get_product('', true);
      }
      
      if (!empty($config['category']['status'])) {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "category c LEFT JOIN " . DB_PREFIX . "category_to_store c2s ON (c.category_id = c2s.category_id) WHERE c2s.store_id = '" . (int)$this->config->get('config_store_id') . "' AND c.status = '1'")->row;
        $data['count']['category'] = $query['total'];
      }
      
      if (!empty($config['information']['status'])) {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "information c LEFT JOIN " . DB_PREFIX . "information_to_store c2s ON (c.information_id = c2s.information_id) WHERE c2s.store_id = '" . (int)$this->config->get('config_store_id') . "' AND c.status = '1'")->row;
        $data['count']['information'] = $query['total']+1;
      }
      
      if (!empty($config['manufacturer']['status'])) {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "manufacturer m LEFT JOIN " . DB_PREFIX . "manufacturer_to_store m2s ON (m.manufacturer_id = m2s.manufacturer_id) WHERE m2s.store_id = '" . (int)$this->config->get('config_store_id') . "'")->row;
        $data['count']['brand'] = $query['total'];
      }
      
      if (!empty($config['journal']['status'])) {
        //$query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "manufacturer m LEFT JOIN " . DB_PREFIX . "manufacturer_to_store m2s ON (m.manufacturer_id = m2s.manufacturer_id) WHERE m2s.store_id = '" . (int)$this->config->get('config_store_id') . "'")->row;
        //$data['count']['journal'] = 1;
      }
    
    }

    if ($xsl == 'grid') {
      $grid = '_grid';
    } else {
      $grid = '';
    }
    
    $template = 'default/template/module/advanced_sitemap'.$grid.'.tpl';
    
    if (false && version_compare(VERSION, '3', '>=')) {
      $template = new Template('template', $this->registry);
      foreach ($data as $key => $value) {
        $template->set($key, $value);
      }

      $rf = new ReflectionMethod('Template', 'render');
      
      if ($rf->getNumberOfParameters() > 2) {
        $output = $template->render('default/template/module/advanced_sitemap'.$grid, $this->registry, false);
      } else {
        $output = $template->render('default/template/module/advanced_sitemap'.$grid, false);
      }
      echo $output;
      return;
      /* Do not work on some installations
      $this->config->set('template_directory', 'default/template/'); // fix issue of undefined template dir
      $this->config->set('template_engine', 'template');
      
      $this->response->setOutput($this->load->view('module/advanced_sitemap'.$grid, $data));
      */
    } else if (version_compare(VERSION, '2.2', '>=')) {
			$this->response->setOutput($this->load->view('module/advanced_sitemap'.$grid, $data));
		} else if ($this->OC_V2) {
			$this->response->setOutput($this->load->view($template, $data));
		} else {
			$this->data = $data;
			$this->template = $template;
			$this->response->setOutput($this->render());
		}
  }
}