<?php
/*

  osCommerce, Open Source E-Commerce Solutions
  http://www.oscommerce.com

  Copyright (c) 2005 osCommerce

  Released under the GNU General Public License
*/

  class osC_RecentlyVisited {

    var $visits = array();

/* Class constructor */

    function osC_RecentlyVisited() {
      if (isset($_SESSION['osC_RecentlyVisited_data']) === false) {
        $_SESSION['osC_RecentlyVisited_data'] = array();
      }

      $this->visits =& $_SESSION['osC_RecentlyVisited_data'];
    }

    function contentModuleInitialize() {
      global $osC_Product, $osC_Category, $osC_Search;

      if (isset($osC_Product) && is_a($osC_Product, 'osC_Product')) {
        $this->setProduct($osC_Product->getID());
      }

      if (SERVICE_RECENTLY_VISITED_SHOW_CATEGORIES == 'True') {
        if (isset($osC_Category) && is_a($osC_Category, 'osC_Category')) {
          $this->setCategory($osC_Category->getID());
        }
      }

      if (SERVICE_RECENTLY_VISITED_SHOW_SEARCHES == 'True') {
        if (isset($osC_Search) && is_a($osC_Search, 'osC_Search')) {
          if ($osC_Search->hasKeywords()) {
            $this->setSearchQuery($osC_Search->getKeywords());
          }
        }
      }
    }

    function getContentModule() {
      return 'recently_visited.php';
    }

    function setProduct($id) {
      if (isset($this->visits['products'])) {
        foreach ($this->visits['products'] as $key => $value) {
          if ($value['id'] == $id) {
            unset($this->visits['products'][$key]);
            break;
          }
        }

        if (sizeof($this->visits['products']) > (MAX_RECENTLY_VISITED_PRODUCTS * 2)) {
          array_pop($this->visits['products']);
        }
      } else {
        $this->visits['products'] = array();
      }

      array_unshift($this->visits['products'], array('id' => $id));
    }

    function setCategory($id) {
      if (isset($this->visits['categories'])) {
        foreach ($this->visits['categories'] as $key => $value) {
          if ($value['id'] == $id) {
            unset($this->visits['categories'][$key]);
            break;
          }
        }

        if (sizeof($this->visits['categories']) > (MAX_RECENTLY_VISITED_CATEGORIES * 2)) {
          array_pop($this->visits['categories']);
        }
      } else {
        $this->visits['categories'] = array();
      }

      array_unshift($this->visits['categories'], array('id' => $id));
    }

    function setSearchQuery($keywords) {
      global $osC_Search;

      if (isset($this->visits['searches'])) {
        foreach ($this->visits['searches'] as $key => $value) {
          if ($value['keywords'] == $keywords) {
            unset($this->visits['searches'][$key]);
            break;
          }
        }

        if (sizeof($this->visits['searches']) > (MAX_RECENTLY_VISITED_SEARCHES * 2)) {
          array_pop($this->visits['searches']);
        }
      } else {
        $this->visits['searches'] = array();
      }

      array_unshift($this->visits['searches'], array('keywords' => $keywords,
                                                     'results' => $osC_Search->getNumberOfResults()
                                                    ));
    }

    function hasHistory() {
      if ($this->hasProducts() || $this->hasCategories() || $this->hasSearches()) {
        return true;
      }

      return false;
    }

    function hasProducts() {
      if (isset($this->visits['products']) && (empty($this->visits['products']) === false)) {
        return true;
      }

      return false;
    }

    function getProducts() {
      global $osC_Database, $osC_Services, $osC_Currencies, $osC_Specials;

      $history = array();

      if (isset($this->visits['products']) && (empty($this->visits['products']) === false)) {
        $counter = 0;

        foreach ($this->visits['products'] as $k => $v) {
          $counter++;

          $cpath = tep_get_product_path($this->visits['products'][$k]['id']);
          $parts = explode("_", $cpath);
          $cat_id =  $parts[sizeof($parts)-1];

          $Qcategory = $osC_Database->query('select categories_name from :table_categories_description where categories_id = :categories_id and  language_id = :language_id');
          $Qcategory->bindTable(':table_categories_description', TABLE_CATEGORIES_DESCRIPTION);
          $Qcategory->bindInt(':categories_id', $cat_id);
          $Qcategory->bindInt(':language_id', $_SESSION['languages_id']);
          $Qcategory->execute();

          $Qproduct = $osC_Database->query('select p.products_price, p.products_tax_class_id, p.products_image, pd.products_name, pd.products_keyword from :table_products p, :table_products_description pd where p.products_id = :products_id and p.products_status = 1 and pd.products_id = :products_id and pd.language_id = :language_id');
          $Qproduct->bindTable(':table_products', TABLE_PRODUCTS);
          $Qproduct->bindTable(':table_products_description', TABLE_PRODUCTS_DESCRIPTION);
          $Qproduct->bindInt(':products_id', $this->visits['products'][$k]['id']);
          $Qproduct->bindInt(':products_id', $this->visits['products'][$k]['id']);
          $Qproduct->bindInt(':language_id', $_SESSION['languages_id']);
          $Qproduct->execute();

          if (SERVICE_RECENTLY_VISITED_SHOW_PRICE == 'True') {
            if ( ($osC_Services->isStarted('specials')) && ($new_price = $osC_Specials->getPrice($this->visits['products'][$k]['id'])) ) {
              $products_price = '<s>' . $osC_Currencies->displayPrice($Qproduct->value('products_price'), $Qproduct->valueInt('products_tax_class_id')) . '</s> <span class="productSpecialPrice">' . $osC_Currencies->displayPrice($new_price, $Qproduct->valueInt('products_tax_class_id')) . '</span>';
            } else {
              $products_price = $osC_Currencies->displayPrice($Qproduct->value('products_price'), $Qproduct->valueInt('products_tax_class_id'));
            }
          }

          $history[] = array('name' => $Qproduct->value('products_name'),
                             'id' => $this->visits['products'][$k]['id'],
                             'keyword' => $Qproduct->value('products_keyword'),
                             'price' => (SERVICE_RECENTLY_VISITED_SHOW_PRICE == 'True') ? $products_price : '',
                             'image' => $Qproduct->value('products_image'),
                             'category_name' =>  $Qcategory->value('categories_name'),
                             'category_path' => $cpath
                            );

          if ($counter == MAX_RECENTLY_VISITED_PRODUCTS) {
            break;
          }
        }
      }

      return $history;
    }

    function hasCategories() {
      if (isset($this->visits['categories']) && (empty($this->visits['categories']) === false)) {
        return true;
      }

      return false;
    }

    function getCategories() {
      global $osC_CategoryTree;

      $history = array();

      if (isset($this->visits['categories']) && (empty($this->visits['categories']) === false)) {
        $counter = 0;

        foreach ($this->visits['categories'] as $k => $v) {
          $counter++;

          $osC_Category = new osC_Category($v['id']);

          if ($osC_Category->hasParent()) {
            $osC_CategoryParent = new osC_Category($osC_Category->getParent());
          }

          $history[]  = array('parents_name' => ($osC_Category->hasParent()) ? $osC_CategoryParent->getTitle() : '',
                              'parents_id' => ($osC_Category->hasParent()) ? $osC_CategoryParent->getID() : '',
                              'category_name' => $osC_Category->getTitle(),
                              'category_id' => $osC_Category->getPath()
                             );

          if ($counter == MAX_RECENTLY_VISITED_CATEGORIES) {
            break;
          }
        }
      }

      return $history;
    }

    function hasSearches() {
      if (isset($this->visits['searches']) && (empty($this->visits['searches']) === false)) {
        return true;
      }

      return false;
    }

    function getSearches() {
      $history = array();

      if (isset($this->visits['searches']) && (empty($this->visits['searches']) === false)) {
        $counter = 0;

        foreach ($this->visits['searches'] as $k => $v) {
          $counter++;

          $history[]  = array('keywords' => $this->visits['searches'][$k]['keywords'],
                              'results' => $this->visits['searches'][$k]['results']
                             );

          if ($counter == MAX_RECENTLY_VISITED_SEARCHES) {
            break;
          }
        }
      }

      return $history;
    }
  }
?>