<?php
	class Category extends CategoryCore {
	public function getProducts($id_lang, $p, $n, $orderBy = NULL, $orderWay = NULL, $getTotal = false, $active = true, $random = false, $randomNumberProducts = 1, $checkAccess = true)
	{
		global $cookie;
		if (!$checkAccess OR !$this->checkAccess($cookie->id_customer))
			return false;

		if ($p < 1) $p = 1;

		if (empty($orderBy))
			$orderBy = 'position';
		else
			/* Fix for all modules which are now using lowercase values for 'orderBy' parameter */
			$orderBy = strtolower($orderBy);

		if (empty($orderWay))
			$orderWay = 'ASC';
		if ($orderBy == 'id_product' OR	$orderBy == 'date_add')
			$orderByPrefix = 'p';
		elseif ($orderBy == 'name')
			$orderByPrefix = 'pl';
		elseif ($orderBy == 'manufacturer')
		{
			$orderByPrefix = 'm';
			$orderBy = 'name';
		}
		elseif ($orderBy == 'position')
			$orderByPrefix = 'cp';

		if ($orderBy == 'price')
			$orderBy = 'orderprice';

		if (!Validate::isBool($active) OR !Validate::isOrderBy($orderBy) OR !Validate::isOrderWay($orderWay))
			die (Tools::displayError());

		$id_supplier = (int)(Tools::getValue('id_supplier'));

		/* Return only the number of products */
		if ($getTotal)
		{
			$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->getRow('
			SELECT COUNT(cp.`id_product`) AS total
			FROM `'._DB_PREFIX_.'product` p
			LEFT JOIN `'._DB_PREFIX_.'category_product` cp ON p.`id_product` = cp.`id_product`
			WHERE cp.`id_category` = '.(int)($this->id).($active ? ' AND p.`active` = 1' : '').'
			'.($id_supplier ? 'AND p.id_supplier = '.(int)($id_supplier) : ''));
			return isset($result) ? $result['total'] : 0;
		}

		$sql = '
		SELECT p.*, pa.`id_product_attribute`, pl.`description`, pl.`description_short`, pl.`available_now`, pl.`available_later`, pl.`link_rewrite`, pl.`meta_description`, pl.`meta_keywords`, pl.`meta_title`, pl.`name`, i.`id_image`, il.`legend`, m.`name` AS manufacturer_name, tl.`name` AS tax_name, t.`rate`, cl.`name` AS category_default, DATEDIFF(p.`date_add`, DATE_SUB(NOW(), INTERVAL '.(Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).' DAY)) > 0 AS new,
			(p.`price` * IF(t.`rate`,((100 + (t.`rate`))/100),1)) AS orderprice
		FROM `'._DB_PREFIX_.'category_product` cp
		LEFT JOIN `'._DB_PREFIX_.'product` p ON p.`id_product` = cp.`id_product`
		LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa ON (p.`id_product` = pa.`id_product` AND default_on = 1)
		LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON (p.`id_category_default` = cl.`id_category` AND cl.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (p.`id_product` = pl.`id_product` AND pl.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'image` i ON (i.`id_product` = p.`id_product` AND i.`cover` = 1)
		LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (i.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'tax_rule` tr ON (p.`id_tax_rules_group` = tr.`id_tax_rules_group`
		                                           AND tr.`id_country` = '.(int)Country::getDefaultCountryId().'
	                                           	   AND tr.`id_state` = 0)
	    LEFT JOIN `'._DB_PREFIX_.'tax` t ON (t.`id_tax` = tr.`id_tax`)
		LEFT JOIN `'._DB_PREFIX_.'tax_lang` tl ON (t.`id_tax` = tl.`id_tax` AND tl.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'manufacturer` m ON m.`id_manufacturer` = p.`id_manufacturer`
		WHERE cp.`id_category` = '.(int)($this->id).($active ? ' AND p.`active` = 1' : '').'
		'.($id_supplier ? 'AND p.id_supplier = '.(int)$id_supplier : '');

		if ($random === true)
		{
			$sql .= ' ORDER BY RAND()';
			$sql .= ' LIMIT 0, '.(int)($randomNumberProducts);
		}
		else
		{
			$sql .= ' ORDER BY IF(p.`quantity` > 0, 1, 0) DESC, '.(isset($orderByPrefix) ? $orderByPrefix.'.' : '').'`'.pSQL($orderBy).'` '.pSQL($orderWay).'
			LIMIT '.(((int)($p) - 1) * (int)($n)).','.(int)($n);
		}

		$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->ExecuteS($sql);

		if ($orderBy == 'orderprice')
			Tools::orderbyPrice($result, $orderWay);

		if (!$result)
			return false;

		/* Modify SQL result */
		return Product::getProductsProperties($id_lang, $result);
	}
	

	public function getProductsStats($id_lang, $p, $n, $orderBy = NULL, $orderWay = NULL, $getTotal = false, $active = true, $random = false, $randomNumberProducts = 1, $checkAccess = true)
	{
		global $cookie;
		if (!$checkAccess OR !$this->checkAccess($cookie->id_customer))
			return false;

		if ($p < 1) $p = 1;

		if (empty($orderBy))
			$orderBy = 'position';
		else
			/* Fix for all modules which are now using lowercase values for 'orderBy' parameter */
			$orderBy = strtolower($orderBy);

		if (empty($orderWay))
			$orderWay = 'ASC';
		if ($orderBy == 'id_product' OR	$orderBy == 'date_add')
			$orderByPrefix = 'p';
		elseif ($orderBy == 'name')
			$orderByPrefix = 'pl';
		elseif ($orderBy == 'manufacturer')
		{
			$orderByPrefix = 'm';
			$orderBy = 'name';
		}
		elseif ($orderBy == 'position')
			$orderByPrefix = 'cp';

		if ($orderBy == 'price')
			$orderBy = 'orderprice';

		if (!Validate::isBool($active) OR !Validate::isOrderBy($orderBy) OR !Validate::isOrderWay($orderWay))
			die (Tools::displayError());

		$id_supplier = (int)(Tools::getValue('id_supplier'));

		/* Return only the number of products */
		if ($getTotal)
		{
			$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->getRow('
			SELECT COUNT(cp.`id_product`) AS total
			FROM `'._DB_PREFIX_.'product` p
			LEFT JOIN `'._DB_PREFIX_.'category_product` cp ON p.`id_product` = cp.`id_product`
			WHERE cp.`id_category` = '.(int)($this->id).($active ? ' AND p.`active` = 1' : '').'
			'.($id_supplier ? 'AND p.id_supplier = '.(int)($id_supplier) : ''));
			return isset($result) ? $result['total'] : 0;
		}

		$categories = array();
		foreach (Db::getInstance()->ExecuteS('
			SELECT 	
			`id_category`
			FROM `'._DB_PREFIX_.'category` 
			WHERE `id_parent` = ' . $this->id
		) as $row ) {
			$categories[] = $row['id_category'];
		}
		$categories[] = $this->id;


		$sql = '
		SELECT 
			p.*, 
			pa.`id_product_attribute`, 
			pl.`description`, 
			pl.`description_short`, 
			pl.`available_now`, 
			pl.`available_later`, 
			pl.`link_rewrite`, 
			pl.`meta_description`, 
			pl.`meta_keywords`, 
			pl.`meta_title`, 
			pl.`name`, 
			i.`id_image`, 
			il.`legend`, 
			m.`name` AS manufacturer_name, 
			tl.`name` AS tax_name, 
			t.`rate`, 
			cl.`name` AS category_default, 
			DATEDIFF(p.`date_add`, DATE_SUB(NOW(), 
			INTERVAL '.(Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).' DAY)) > 0 AS new,
			(p.`price` * IF(t.`rate`,((100 + (t.`rate`))/100),1)) AS orderprice
		FROM `'._DB_PREFIX_.'category_product` cp
		LEFT JOIN `'._DB_PREFIX_.'product` p ON p.`id_product` = cp.`id_product`
		LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa ON (p.`id_product` = pa.`id_product` AND default_on = 1)
		LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON (p.`id_category_default` = cl.`id_category` AND cl.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (p.`id_product` = pl.`id_product` AND pl.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'image` i ON (i.`id_product` = p.`id_product` AND i.`cover` = 1)
		LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (i.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'tax_rule` tr ON (p.`id_tax_rules_group` = tr.`id_tax_rules_group`
		                                           AND tr.`id_country` = '.(int)Country::getDefaultCountryId().'
	                                           	   AND tr.`id_state` = 0)
	    LEFT JOIN `'._DB_PREFIX_.'tax` t ON (t.`id_tax` = tr.`id_tax`)
		LEFT JOIN `'._DB_PREFIX_.'tax_lang` tl ON (t.`id_tax` = tl.`id_tax` AND tl.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'manufacturer` m ON m.`id_manufacturer` = p.`id_manufacturer`
		WHERE cp.`id_category` IN ('.implode($categories, ',').')'.($active ? ' AND p.`active` = 1' : '').'
		'.($id_supplier ? 'AND p.id_supplier = '.(int)$id_supplier : '');
		

		// if ($random === true)
		// {
		// 	$sql .= ' ORDER BY RAND()';
		// 	$sql .= ' LIMIT 0, '.(int)($randomNumberProducts);
		// }
		// else
		// {
		// 	$sql .= ' ORDER BY IF(p.`quantity` > 0, 1, 0) DESC, '.(isset($orderByPrefix) ? $orderByPrefix.'.' : '').'`'.pSQL($orderBy).'` '.pSQL($orderWay).'
		// 	LIMIT '.(((int)($p) - 1) * (int)($n)).','.(int)($n);
		// }

		$sql .= " GROUP BY p.`id_product`, pa.`id_product_attribute`
		ORDER BY CAST( SPLIT_STRING(
				'-', p.`reference` , 2
				) AS unsigned )";	

		
		$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->ExecuteS($sql);

		// if ($orderBy == 'orderprice')
		// 	Tools::orderbyPrice($result, $orderWay);

		if (!$result)
			return false;

		/* Modify SQL result */
		return Product::getProductsProperties($id_lang, $result);
	}


	public static function getIdParent($id_category){
		$sql = 'SELECT c.id_parent
					FROM '._DB_PREFIX_.'category c
					WHERE id_category ='.$id_category;		
		return $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue($sql);
	}

	
	/**
	  * Return current category products
	  *
	  * @param integer $id_lang Language ID
	  * @param integer $p Page number
	  * @param integer $n Number of products per page
	  * @param boolean $getTotal return the number of results instead of the results themself
	  * @param boolean $active return only active products
	  * @param boolean $random active a random filter for returned products
	  * @param int $randomNumberProducts number of products to return if random is activated
	  * @param boolean $checkAccess set to false to return all products (even if customer hasn't access)
	  * @return mixed Products or number of products
	  */
	public function getProductsByAttributes($id_lang, $attributes=false, $p=false, $n=false, $orderBy = NULL, $orderWay = NULL, $getTotal = false, $active = true, $random = false, $randomNumberProducts = 1, $checkAccess = true)
	{

		global $cookie;
		if (!$checkAccess OR !$this->checkAccess($cookie->id_customer))
			return false;

		if ($p < 1) $p = 1;

		if (empty($orderBy))
			$orderBy = 'position';
		else
			/* Fix for all modules which are now using lowercase values for 'orderBy' parameter */
			$orderBy = strtolower($orderBy);

		if (empty($orderWay))
			$orderWay = 'ASC';
		if ($orderBy == 'id_product' OR	$orderBy == 'date_add')
			$orderByPrefix = 'p';
		elseif ($orderBy == 'name')
			$orderByPrefix = 'pl';
		elseif ($orderBy == 'manufacturer')
		{
			$orderByPrefix = 'm';
			$orderBy = 'name';
		}
		elseif ($orderBy == 'position')
			$orderByPrefix = 'cp';

		if ($orderBy == 'price')
			$orderBy = 'orderprice';

		if (!Validate::isBool($active) OR !Validate::isOrderBy($orderBy) OR !Validate::isOrderWay($orderWay))
			die (Tools::displayError());

		$id_supplier = (int)(Tools::getValue('id_supplier'));

		/* Return only the number of products */
		if ($getTotal)
		{
			$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->getRow('
			SELECT COUNT(cp.`id_product`) AS total
			FROM `'._DB_PREFIX_.'product` p
			LEFT JOIN `'._DB_PREFIX_.'category_product` cp ON p.`id_product` = cp.`id_product`
			WHERE cp.`id_category` = '.(int)($this->id).($active ? ' AND p.`active` = 1' : '').'
			'.($id_supplier ? 'AND p.id_supplier = '.(int)($id_supplier) : ''));
			return isset($result) ? $result['total'] : 0;
		}

		$sql = '
		SELECT DISTINCT p.*, pl.`description`, pl.`description_short`, pl.`available_now`, pl.`available_later`, pl.`link_rewrite`, pl.`meta_description`, pl.`meta_keywords`, pl.`meta_title`, pl.`name`, i.`id_image`, il.`legend`, m.`name` AS manufacturer_name, tl.`name` AS tax_name, t.`rate`, cl.`name` AS category_default, DATEDIFF(p.`date_add`, DATE_SUB(NOW(), INTERVAL '.(Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20).' DAY)) > 0 AS new,
			(p.`price` * IF(t.`rate`,((100 + (t.`rate`))/100),1)) AS orderprice
		FROM `'._DB_PREFIX_.'category_product` cp
		LEFT JOIN `'._DB_PREFIX_.'product` p ON p.`id_product` = cp.`id_product`
		LEFT JOIN `'._DB_PREFIX_.'product_attribute` pa ON (p.`id_product` = pa.`id_product` )
		LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON (pac.`id_product_attribute` = pa.`id_product_attribute`)
		LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON (p.`id_category_default` = cl.`id_category` AND cl.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (p.`id_product` = pl.`id_product` AND pl.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'image` i ON (i.`id_product` = p.`id_product` AND i.`cover` = 1)
		LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (i.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'tax_rule` tr ON (p.`id_tax_rules_group` = tr.`id_tax_rules_group`
		                                           AND tr.`id_country` = '.(int)Country::getDefaultCountryId().'
	                                           	   AND tr.`id_state` = 0)
	    LEFT JOIN `'._DB_PREFIX_.'tax` t ON (t.`id_tax` = tr.`id_tax`)
		LEFT JOIN `'._DB_PREFIX_.'tax_lang` tl ON (t.`id_tax` = tl.`id_tax` AND tl.`id_lang` = '.(int)($id_lang).')
		LEFT JOIN `'._DB_PREFIX_.'manufacturer` m ON m.`id_manufacturer` = p.`id_manufacturer`
		WHERE cp.`id_category` = '.(int)($this->id).($active ? ' AND p.`active` = 1' : '').'
		'.($id_supplier ? 'AND p.id_supplier = '.(int)$id_supplier : '').'
		AND p.`quantity` > 0';

		if ( $attributes ){
			$sql .= ' AND pac.`id_attribute` IN ('.$attributes.')
					AND pa.`quantity` > 0';		
		}

		if ($random === true)
		{
			$sql .= ' ORDER BY RAND()';
			$sql .= ' LIMIT 0, '.(int)($randomNumberProducts);
		}
		else
		{
			$sql .= ' ORDER BY '.(isset($orderByPrefix) ? $orderByPrefix.'.' : '').'`'.pSQL($orderBy).'` '.pSQL($orderWay);
			if ( $n && $p ){
				$sql.=' LIMIT '.(((int)($p) - 1) * (int)($n)).','.(int)($n);
			}
		}

		$result = Db::getInstance(_PS_USE_SQL_SLAVE_)->ExecuteS($sql);
		if ($orderBy == 'orderprice')
			Tools::orderbyPrice($result, $orderWay);


		if (!$result)
			return false;

		/* Modify SQL result */
		return $data = Product::getProductsProperties($id_lang, $result);

		return Product::getProductsProperties($id_lang, $result);
	}

	public static function getMaxId()
	{
		return Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
			SELECT MAX(`id_category`) as max
			FROM `'._DB_PREFIX_.'category`
		');
	}
	
	public static function getCategoriesSameVP($id_category, $id_lang) {
		return $categories = Db::getInstance()->ExecuteS('
				SELECT pc.`id_category`, cl.`name`, c.`id_parent`
				FROM `'._DB_PREFIX_.'privatesale_category` pc
				LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON pc.`id_category` = cl.`id_category`
				LEFT JOIN `'._DB_PREFIX_.'category` c ON c.`id_category` = cl.`id_category`
				WHERE pc.`id_sale` = (SELECT `id_sale` FROM `'._DB_PREFIX_.'privatesale_category` WHERE `id_category` = '. (int)$id_category .')
				AND cl.`id_lang` = '. (int)$id_lang .'');
	}

	public static function getCategoriesVP($id_lang){
		return $categories = Db::getInstance()->ExecuteS('
			SELECT c.`id_category`, l.`name`, l.`link_rewrite`
			FROM `'._DB_PREFIX_.'category` c, `'._DB_PREFIX_.'category_lang` l
			WHERE c.`id_category` = l.`id_category` AND l.`id_lang` = '.intval($id_lang).' AND c.`id_parent` = '.Configuration::get('PRIVATESALES_ROOT').'
			ORDER BY c.`id_category` DESC
		');
	}

	public static function getSalesInfos($ids)
	{
		if (!class_exists('PrivateSales_ExtraFields')) {
			require_once dirname(__FILE__).'/../../modules/privatesales_extrafields/privatesales_extrafields.php';
		}

		$results = array();
		$id_sales = array();

		foreach (Db::getInstance()->executeS('SELECT `id_sale`, `id_category` 
			FROM `'._DB_PREFIX_.'privatesale_category`
			WHERE id_category IN ('.implode(', ', $ids).')
			') as $key => $value) {
			if(!isset($results[$value['id_category']])) {
				$results[$value['id_category']] = array();
			}
			$results[$value['id_category']]['id_sale'] = $value['id_sale'];
			$id_sales[] = $value['id_sale'];
		}

		array_unique($id_sales);
		$extrafields = PrivateSales_ExtraFields::getFieldsForSale($id_sales);

		foreach ($results as $key => $result) {
			$results[$key]['sales'] = $extrafields[$result['id_sale']];
		}
		
		return $results;
	}

}