<?php
/**
 * Содержит класс BasketForm
 *
 * @package energine
 * @subpackage shop
 * @author dr.Pavka
 * @copyright ColoCall 2006
 * @version $Id: BasketForm.class.php,v 1.9 2007/12/17 14:24:29 pavka Exp $
 */

//require_once('core/modules/share/components/DataSet.class.php');
//require_once('core/modules/shop/components/Basket.class.php');
//require_once('core/modules/shop/components/Discounts.class.php');
//require_once('core/modules/shop/components/CurrencyConverter.class.php');
/**
 * Корзина с выбранными продуктами
 *
 * @package energine
 * @subpackage shop
 */
class BasketForm extends DataSet {
    /**
     * Режим корзины
     * просмотр
     */
    const BASKET_MODE_VIEW = 0;

    /**
     * Режим корзины - добавление
     *
     */
    const BASKET_MODE_ADD = 1;

    /**
     * Режим корзины - обновление
     *
     */
    const BASKET_MODE_UPDATE = 2;

    /**
     * Режим корзины - удаление
     *
     */
    const BASKET_MODE_DEL = 4;

    /**
     * Объект - корзина
     *
     * @var Basket
     * @access private
     */
    private $basket;

    /**
     * @access private
     * @var Discounts скидки
     */
    private $discounts;

    /**
     * Режим корзины
     *
     * @var int
     * @access private
     */
    private $mode;

    /**
     * Конструктор класса
     *
     * @param string $name
     * @param string $module
     * @param Document $document
     * @param array $params
     * @access public
     */
    public function __construct($name, $module, Document $document,  array $params = null) {
        parent::__construct($name, $module, $document,  $params);
        $this->basket = Basket::getInstance();
        $this->discounts = Discounts::getInstance();
        $this->setType(self::COMPONENT_TYPE_LIST);
        $this->mode = self::BASKET_MODE_VIEW;

        if (isset($_POST['shop_products']['product_id'])) $this->mode = self::BASKET_MODE_ADD;
        elseif (isset($_POST['update']) && isset($_POST['recount'])) $this->mode = self::BASKET_MODE_UPDATE;
        elseif (isset($_POST['delete']) && isset($_POST['selectedID'])) $this->mode = self::BASKET_MODE_DEL;

        switch ($this->mode){
            case self::BASKET_MODE_ADD :
                $productCount = (isset($_POST['shop_products']['product_count']))?$_POST['shop_products']['product_count']:1;
                $this->basket->put($_POST['shop_products']['product_id'], $productCount);
                $this->response->redirectToCurrentSection();
            break;
            case self::BASKET_MODE_UPDATE:
                $this->basket->recount($_POST['recount']);
            break;
            case self::BASKET_MODE_DEL:
                foreach ($_POST['selectedID'] as $currentId) {
                    $this->basket->takeOut($currentId);
                }
            break;
        }
    }

    /**
	 * Выводим данные корзины
	 *
	 * @return void
	 * @access protected
	 */

    protected function main() {
        if ($component = $this->document->componentManager->getComponentByName('basketList')) {
        	$component->disable();
        }
        parent::main();
    }

    /**
      * Для поля product_id изменяем тип
      *
      * @return DataDescription
      * @access protected
      */

    protected function createDataDescription() {
        $result = parent::createDataDescription();
        $ProductIDFieldDescription = $result->getFieldDescriptionByName('product_id');
        $ProductIDFieldDescription->setType(FieldDescription::FIELD_TYPE_STRING);
        $ProductIDFieldDescription->setMode(FieldDescription::FIELD_MODE_READ);
        return $result;
    }

    /**
     * Загружаем цены
     *
     * @return array
     * @access protected
     */

    protected function loadData() {
        $result = $this->basket->getContents();
        //Подсчитываем сумму
        if (!empty($result)) {
            $this->setProperty('discount', $this->discounts->getDiscountForGroup());
            $this->setProperty('summ', $this->basket->getTotal());
            $this->setProperty('summ_with_discount', $this->basket->getTotal(true));
            $this->addTranslation('TXT_DISCOUNT');
            $this->addTranslation('TXT_BASKET_SUMM');
            $this->addTranslation('TXT_BASKET_SUMM_WITH_DISCOUNT');
            //Добавляем изображение
            foreach ($result as $key => $productInfo) {
            	$result[$key]['product_thumb_img'] = simplifyDBResult($this->dbh->select('shop_products', 'product_thumb_img', array('product_id'=>$productInfo['product_id'])), 'product_thumb_img', true);
            }
        }
        else {
            //Если корзина пустая - добавляем перевод сообщения
        	$this->addTranslation('TXT_BASKET_EMPTY');
        }
        return $result;
    }
}