<?php
/*
* 2007-2012 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2012 PrestaShop SA
*  @version  Release: $Revision: 16943 $
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class ProductControllerCore extends FrontController
{
	protected $product;
	public $php_self = 'product.php';
	protected $canonicalURL;

	public function setMedia()
	{
		parent::setMedia();

		Tools::addCSS(_THEME_CSS_DIR_.'product.css');
		Tools::addCSS(_PS_CSS_DIR_.'jquery.fancybox-1.3.4.css', 'screen');
		Tools::addJS(array(
			_PS_JS_DIR_.'jquery/jquery.fancybox-1.3.4.js',
			_PS_JS_DIR_.'jquery/jquery.idTabs.modified.js',
			_PS_JS_DIR_.'jquery/jquery.scrollTo-1.4.2-min.js',
			_PS_JS_DIR_.'jquery/jquery.serialScroll-1.2.2-min.js',
			_THEME_JS_DIR_.'tools.js',
			_THEME_JS_DIR_.'product.js'));

		if (Configuration::get('PS_DISPLAY_JQZOOM') == 1)
		{
			Tools::addCSS(_PS_CSS_DIR_.'jqzoom.css', 'screen');
			Tools::addJS(_PS_JS_DIR_.'jquery/jquery.jqzoom.js');
		}
	}

	public function canonicalRedirection()
	{
		// Automatically redirect to the canonical URL if the current in is the right one
		// $_SERVER['HTTP_HOST'] must be replaced by the real canonical domain
		if (Validate::isLoadedObject($this->product) && strtoupper($_SERVER['REQUEST_METHOD']) == 'GET')
		{
			$canonicalURL = self::$link->getProductLink($this->product);
			if (!preg_match('/^'.Tools::pRegexp($canonicalURL, '/').'([&?].*)?$/', Tools::getProtocol().$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']))
			{
				header('HTTP/1.0 301 Moved');
				header('Cache-Control: no-cache');
				if (defined('_PS_MODE_DEV_') && _PS_MODE_DEV_)
					die('[Debug] This page has moved<br />Please use the following URL instead: <a href="'.$canonicalURL.'">'.$canonicalURL.'</a>');
				Tools::redirectLink($canonicalURL);
			}
		}
	}

	public function preProcess()
	{
		global $cart;
		if ($id_product = (int)Tools::getValue('id_product'))
			$this->product = new Product($id_product, true, self::$cookie->id_lang);

		if (Tools::isSubmit('ajax'))
		{
			if (Tools::isSubmit('submitCustomizedDatas'))
			{
				$this->pictureUpload($this->product, $cart);
				$this->textRecord($this->product, $cart);
				$this->formTargetFormat();
			}
			if (count($this->errors))
				die(Tools::jsonEncode(array('hasErrors' => true, 'errors' => $this->errors)));
			else
				die(Tools::jsonEncode(array('hasErrors' => false, 'conf' => Tools::displayError('Customization saved successfully.'))));
		}
		if (!Validate::isLoadedObject($this->product))
		{
			header('HTTP/1.1 404 Not Found');
			header('Status: 404 Not Found');
		}
		else
			$this->canonicalRedirection();

		parent::preProcess();
	}

	public function process()
	{
		global $cart;
		parent::process();

		if (!Validate::isLoadedObject($this->product))
			$this->errors[] = Tools::displayError('Product not found');
		else
		{
			if (!$this->product->active && (Tools::getValue('adtoken') != Tools::encrypt('PreviewProduct'.$this->product->id)
				|| !file_exists(dirname(__FILE__).'/../'.Tools::getValue('ad').'/ajax.php')))
			{
				header('HTTP/1.1 404 page not found');
				$this->errors[] = Tools::displayError('Product is no longer available.');
			}
			elseif (!$this->product->checkAccess((int)self::$cookie->id_customer))
				$this->errors[] = Tools::displayError('You do not have access to this product.');
			else
			{
				self::$smarty->assign('virtual', ProductDownload::getIdFromIdProduct((int)$this->product->id));

				if (!$this->product->active)
					self::$smarty->assign('adminActionDisplay', true);

				/* Product pictures management */
				require_once('images.inc.php');

				if ($this->product->customizable)
				{
					self::$smarty->assign('customizationFormTarget', Tools::safeOutput(urldecode($_SERVER['REQUEST_URI'])));

					if (Tools::isSubmit('submitCustomizedDatas'))
					{
						$this->pictureUpload($this->product, $cart);
						$this->textRecord($this->product, $cart);
						$this->formTargetFormat();
					}
					elseif (isset($_GET['deletePicture']) && !$cart->deletePictureToProduct((int)($this->product->id), (int)(Tools::getValue('deletePicture'))))
						$this->errors[] = Tools::displayError('An error occurred while deleting the selected picture');

					$files = self::$cookie->getFamily('pictures_'.(int)($this->product->id));
					$textFields = self::$cookie->getFamily('textFields_'.(int)($this->product->id));
					foreach ($textFields as $key => $textField)
						$textFields[$key] = str_replace('<br />', "\n", $textField);
					self::$smarty->assign(array(
						'pictures' => $files,
						'textFields' => $textFields));
				}

				/* Features / Values */
				$features = $this->product->getFrontFeatures((int)self::$cookie->id_lang);
				$attachments = ($this->product->cache_has_attachments ? $this->product->getAttachments((int)self::$cookie->id_lang) : array());

				/* Category */
				$category = false;
				if (isset($_SERVER['HTTP_REFERER']) && preg_match('!^(.*)\/([0-9]+)\-(.*[^\.])|(.*)id_category=([0-9]+)(.*)$!', $_SERVER['HTTP_REFERER'], $regs) && !strstr($_SERVER['HTTP_REFERER'], '.html'))
				{
					if (isset($regs[2]) && is_numeric($regs[2]))
					{
						if (Product::idIsOnCategoryId((int)($this->product->id), array('0' => array('id_category' => (int)($regs[2])))))
							$category = new Category((int)($regs[2]), (int)(self::$cookie->id_lang));
					}
					elseif (isset($regs[5]) && is_numeric($regs[5]))
					{
						if (Product::idIsOnCategoryId((int)($this->product->id), array('0' => array('id_category' => (int)($regs[5])))))
							$category = new Category((int)($regs[5]), (int)(self::$cookie->id_lang));
					}
				}
				if (!$category)
					$category = new Category($this->product->id_category_default, (int)(self::$cookie->id_lang));

				if (isset($category) && Validate::isLoadedObject($category))
				{
					self::$smarty->assign(array(
						'path' => Tools::getPath((int)$category->id, $this->product->name, true),
						'category' => $category,
						'subCategories' => $category->getSubCategories((int)self::$cookie->id_lang, true),
						'id_category_current' => (int)$category->id,
						'id_category_parent' => (int)$category->id_parent,
						'return_category_name' => Tools::safeOutput($category->name)
					));
				}
				else
					self::$smarty->assign('path', Tools::getPath((int)$this->product->id_category_default, $this->product->name));

				self::$smarty->assign('return_link', (isset($category->id) && $category->id) ? Tools::safeOutput(self::$link->getCategoryLink($category)) : 'javascript: history.back();');

				if (Pack::isPack((int)$this->product->id) && !Pack::isInStock((int)$this->product->id))
					$this->product->quantity = 0;

				$id_customer = (isset(self::$cookie->id_customer) && self::$cookie->id_customer) ? (int)(self::$cookie->id_customer) : 0;
				$id_group = $id_customer ? (int)(Customer::getDefaultGroupId($id_customer)) : _PS_DEFAULT_CUSTOMER_GROUP_;
				$id_country = (int)($id_customer ? Customer::getCurrentCountry($id_customer) : _PS_COUNTRY_DEFAULT_);

				$group_reduction = GroupReduction::getValueForProduct($this->product->id, $id_group);
				if ($group_reduction == 0)
					$group_reduction = (float)Group::getReduction((int)self::$cookie->id_customer) / 100;

				// Tax
				$tax = (float)(Tax::getProductTaxRate((int)($this->product->id), $cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')}));
				self::$smarty->assign('tax_rate', $tax);

				$productPriceWithTax = Product::getPriceStatic($this->product->id, true, null, 6);
				if (Product::$_taxCalculationMethod == PS_TAX_INC)
					$productPriceWithTax = Tools::ps_round($productPriceWithTax, 2);
				$productPriceWithoutEcoTax = (float)($productPriceWithTax - $this->product->ecotax);

				$ecotax_rate = (float) Tax::getProductEcotaxRate($cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')});
				$ecotaxTaxAmount = Tools::ps_round($this->product->ecotax, 2);
				if (Product::$_taxCalculationMethod == PS_TAX_INC && (int)Configuration::get('PS_TAX'))
					$ecotaxTaxAmount = Tools::ps_round($ecotaxTaxAmount * (1 + $ecotax_rate / 100), 2);

				self::$smarty->assign(array(
					'quantity_discounts' => $this->formatQuantityDiscounts(SpecificPrice::getQuantityDiscounts((int)$this->product->id, (int)Shop::getCurrentShop(), (int)self::$cookie->id_currency, $id_country, $id_group), $this->product->getPrice(Product::$_taxCalculationMethod == PS_TAX_INC, false), (float)$tax),
					'product' => $this->product,
					'ecotax_tax_inc' => $ecotaxTaxAmount,
					'ecotax_tax_exc' => Tools::ps_round($this->product->ecotax, 2),
					'ecotaxTax_rate' => $ecotax_rate,
					'homeSize' => Image::getSize('home'),
					'product_manufacturer' => new Manufacturer((int)$this->product->id_manufacturer, self::$cookie->id_lang),
					'token' => Tools::getToken(false),
					'productPriceWithoutEcoTax' => (float)$productPriceWithoutEcoTax,
					'features' => $features,
					'attachments' => $attachments,
					'allow_oosp' => $this->product->isAvailableWhenOutOfStock((int)($this->product->out_of_stock)),
					'last_qties' =>  (int)Configuration::get('PS_LAST_QTIES'),
					'group_reduction' => (1 - $group_reduction),
					'col_img_dir' => _PS_COL_IMG_DIR_,
				));
				self::$smarty->assign(array(
					'HOOK_EXTRA_LEFT' => Module::hookExec('extraLeft'),
					'HOOK_EXTRA_RIGHT' => Module::hookExec('extraRight'),
					'HOOK_PRODUCT_OOS' => Hook::productOutOfStock($this->product),
					'HOOK_PRODUCT_FOOTER' => Hook::productFooter($this->product, $category),
					'HOOK_PRODUCT_ACTIONS' => Module::hookExec('productActions'),
					'HOOK_PRODUCT_TAB' =>  Module::hookExec('productTab'),
					'HOOK_PRODUCT_TAB_CONTENT' =>  Module::hookExec('productTabContent')
				));

				$images = $this->product->getImages((int)self::$cookie->id_lang);
				$productImages = array();
				foreach ($images as $k => $image)
				{
					if ($image['cover'])
					{
						self::$smarty->assign('mainImage', $images[0]);
						$cover = $image;
						$cover['id_image'] = (Configuration::get('PS_LEGACY_IMAGES') ? ($this->product->id.'-'.$image['id_image']) : $image['id_image']);
						$cover['id_image_only'] = (int)$image['id_image'];
					}
					$productImages[(int)$image['id_image']] = $image;
				}
				if (!isset($cover))
					$cover = array('id_image' => Language::getIsoById(self::$cookie->id_lang).'-default', 'legend' => 'No picture', 'title' => 'No picture');
				$size = Image::getSize('large');
				self::$smarty->assign(array('cover' => $cover, 'imgWidth' => (int)($size['width']),
				'mediumSize' => Image::getSize('medium'), 'largeSize' => Image::getSize('large'),
				'accessories' => $this->product->getAccessories((int)self::$cookie->id_lang)));
				if (count($productImages))
					self::$smarty->assign('images', $productImages);

				/* Attributes / Groups & colors */
				$colors = array();
				$attributesGroups = $this->product->getAttributesGroups((int)self::$cookie->id_lang);  // @todo (RM) should only get groups and not all declination ?
				if (is_array($attributesGroups) && $attributesGroups)
				{
					$groups = array();
					$combinationImages = $this->product->getCombinationImages((int)self::$cookie->id_lang);
					foreach ($attributesGroups as $k => $row)
					{
						if (!Product::isAvailableWhenOutOfStock($this->product->out_of_stock) && Configuration::get('PS_DISP_UNAVAILABLE_ATTR') == 0 && !$row['quantity'])
							continue;
						/* Color management */
						if (((isset($row['attribute_color']) && $row['attribute_color']) || (file_exists(_PS_COL_IMG_DIR_.$row['id_attribute'].'.jpg'))) && $row['id_attribute_group'] == $this->product->id_color_default)
						{
							$colors[$row['id_attribute']]['value'] = $row['attribute_color'];
							$colors[$row['id_attribute']]['name'] = $row['attribute_name'];
							if (!isset($colors[$row['id_attribute']]['attributes_quantity']))
								$colors[$row['id_attribute']]['attributes_quantity'] = 0;
							$colors[$row['id_attribute']]['attributes_quantity'] += (int)($row['quantity']);
						}

						if (!isset($groups[$row['id_attribute_group']]))
							$groups[$row['id_attribute_group']] = array('name' => $row['public_group_name'], 'is_color_group' => $row['is_color_group'], 'default' => -1);

						$groups[$row['id_attribute_group']]['attributes'][$row['id_attribute']] = $row['attribute_name'];
						if ($row['default_on'] && $groups[$row['id_attribute_group']]['default'] == -1)
							$groups[$row['id_attribute_group']]['default'] = (int)($row['id_attribute']);
						if (!isset($groups[$row['id_attribute_group']]['attributes_quantity'][$row['id_attribute']]))
							$groups[$row['id_attribute_group']]['attributes_quantity'][$row['id_attribute']] = 0;
						$groups[$row['id_attribute_group']]['attributes_quantity'][$row['id_attribute']] += (int)($row['quantity']);

						$combinations[$row['id_product_attribute']]['attributes_values'][$row['id_attribute_group']] = $row['attribute_name'];
						$combinations[$row['id_product_attribute']]['attributes'][] = (int)($row['id_attribute']);
						$combinations[$row['id_product_attribute']]['price'] = (float)($row['price']);
						$combinations[$row['id_product_attribute']]['ecotax'] = (float)($row['ecotax']);
						$combinations[$row['id_product_attribute']]['weight'] = (float)($row['weight']);
						$combinations[$row['id_product_attribute']]['quantity'] = (int)($row['quantity']);
						$combinations[$row['id_product_attribute']]['reference'] = $row['reference'];
						$combinations[$row['id_product_attribute']]['ean13'] = $row['ean13'];
						$combinations[$row['id_product_attribute']]['unit_impact'] = $row['unit_price_impact'];
						$combinations[$row['id_product_attribute']]['minimal_quantity'] = $row['minimal_quantity'];
						$combinations[$row['id_product_attribute']]['id_image'] = isset($combinationImages[$row['id_product_attribute']][0]['id_image']) ? $combinationImages[$row['id_product_attribute']][0]['id_image'] : -1;
					}

					/* Clean the attributes list (if some attributes are unavailable and if allowed to remove them) */
					if (!Product::isAvailableWhenOutOfStock($this->product->out_of_stock) && Configuration::get('PS_DISP_UNAVAILABLE_ATTR') == 0)
					{
						foreach ($groups as &$group)
							foreach ($group['attributes_quantity'] as $key => &$quantity)
								if (!$quantity)
									unset($group['attributes'][$key]);

						foreach ($colors as $key => $color)
							if (!$color['attributes_quantity'])
								unset($colors[$key]);
					}

					foreach ($groups as &$group)
						natcasesort($group['attributes']);

					foreach ($combinations as $id_product_attribute => $comb)
					{
						$attributeList = '';
						foreach ($comb['attributes'] as $id_attribute)
							$attributeList .= '\''.(int)$id_attribute.'\',';
						$attributeList = rtrim($attributeList, ',');
						$combinations[$id_product_attribute]['list'] = $attributeList;
					}

					self::$smarty->assign(array(
						'groups' => $groups,
						'combinaisons' => $combinations, /* Kept for compatibility purpose only */
						'combinations' => $combinations,
						'colors' => (count($colors) && $this->product->id_color_default) ? $colors : false,
						'combinationImages' => $combinationImages));
				}

				self::$smarty->assign(array(
					'no_tax' => !_PS_TAX_ || !Tax::getProductTaxRate((int)$this->product->id, $cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')}),
					'customizationFields' => ($this->product->customizable ? $this->product->getCustomizationFields((int)self::$cookie->id_lang) : false)
				));

				// Pack management
				self::$smarty->assign('packItems', $this->product->cache_is_pack ? Pack::getItemTable($this->product->id, (int)(self::$cookie->id_lang), true) : array());
				self::$smarty->assign('packs', Pack::getPacksTable($this->product->id, (int)(self::$cookie->id_lang), true, 1));
			}
		}

		global $currency;

		self::$smarty->assign(array(
			'ENT_NOQUOTES' => ENT_NOQUOTES,
			'outOfStockAllowed' => (int)(Configuration::get('PS_ORDER_OUT_OF_STOCK')),
			'errors' => $this->errors,
			'categories' => Category::getHomeCategories((int)self::$cookie->id_lang),
			'have_image' => (isset($cover) ? (int)$cover['id_image'] : false),
			'tax_enabled' => Configuration::get('PS_TAX'),
			'display_qties' => (int)Configuration::get('PS_DISPLAY_QTIES'),
			'display_ht' => _PS_TAX_,
			'ecotax' => ((!count($this->errors) && $this->product->ecotax > 0) ? Tools::convertPrice((float)$this->product->ecotax) : 0),
			'currencySign' => $currency->sign,
			'currencyRate' => $currency->conversion_rate,
			'currencyFormat' => $currency->format,
			'currencyBlank' => $currency->blank,
			'jqZoomEnabled' => Configuration::get('PS_DISPLAY_JQZOOM'),
			'ipa_customization' => Tools::getIsset('ipa_customization') ? Tools::getValue('ipa_customization'): '',
			'ipa_default' => !count($this->errors) ? Product::getDefaultAttribute($this->product->id) : 0
		));
	}

	public function displayContent()
	{
		parent::displayContent();
		self::$smarty->display(_PS_THEME_DIR_.'product.tpl');
	}

	public function pictureUpload(Product $product, Cart $cart)
	{
		if (!$fieldIds = $this->product->getCustomizationFieldIds())
			return false;
		$authorizedFileFields = array();
		foreach ($fieldIds as $fieldId)
			if ($fieldId['type'] == _CUSTOMIZE_FILE_)
				$authorizedFileFields[(int)($fieldId['id_customization_field'])] = 'file'.(int)($fieldId['id_customization_field']);
		$indexes = array_flip($authorizedFileFields);
		foreach ($_FILES as $fieldName => $file)
			if (in_array($fieldName, $authorizedFileFields) && isset($file['tmp_name']) && !empty($file['tmp_name']))
			{
				$fileName = md5(uniqid(rand(), true));
				if ($error = checkImage($file, (int)(Configuration::get('PS_PRODUCT_PICTURE_MAX_SIZE'))))
					$this->errors[] = $error;

				if ($error OR (!$tmpName = tempnam(_PS_TMP_IMG_DIR_, 'PS') OR !move_uploaded_file($file['tmp_name'], $tmpName)))
					return false;
				/* Original file */
				elseif (!imageResize($tmpName, _PS_UPLOAD_DIR_.$fileName))
					$this->errors[] = Tools::displayError('An error occurred during the image upload.');
				/* A smaller one */
				elseif (!imageResize($tmpName, _PS_UPLOAD_DIR_.$fileName.'_small', (int)(Configuration::get('PS_PRODUCT_PICTURE_WIDTH')), (int)(Configuration::get('PS_PRODUCT_PICTURE_HEIGHT'))))
					$this->errors[] = Tools::displayError('An error occurred during the image upload.');
				elseif (!chmod(_PS_UPLOAD_DIR_.$fileName, 0777) || !chmod(_PS_UPLOAD_DIR_.$fileName.'_small', 0777))
					$this->errors[] = Tools::displayError('An error occurred during the image upload.');
				else
					$cart->addPictureToProduct((int)($this->product->id), $indexes[$fieldName], $fileName);
				unlink($tmpName);
			}
		return true;
	}

	public function textRecord(Product $product, Cart $cart)
	{
		if (!$fieldIds = $this->product->getCustomizationFieldIds())
			return false;
		$authorizedTextFields = array();
		foreach ($fieldIds as $fieldId)
			if ($fieldId['type'] == _CUSTOMIZE_TEXTFIELD_)
				$authorizedTextFields[(int)($fieldId['id_customization_field'])] = 'textField'.(int)($fieldId['id_customization_field']);
		$indexes = array_flip($authorizedTextFields);
		foreach ($_POST as $fieldName => $value)
			if (in_array($fieldName, $authorizedTextFields) && !empty($value))
			{
				if (!Validate::isMessage($value))
					$this->errors[] = Tools::displayError('Invalid message');
				else
					$cart->addTextFieldToProduct((int)($this->product->id), $indexes[$fieldName], $value);
			}
			elseif (in_array($fieldName, $authorizedTextFields) && empty($value))
				$cart->deleteTextFieldFromProduct((int)($this->product->id), $indexes[$fieldName]);
	}

	public function formTargetFormat()
	{
		$customizationFormTarget = Tools::safeOutput(urldecode($_SERVER['REQUEST_URI']));
		foreach ($_GET as $field => $value)
			if (strncmp($field, 'group_', 6) == 0)
				$customizationFormTarget = preg_replace('/&group_([[:digit:]]+)=([[:digit:]]+)/', '', $customizationFormTarget);
		if (isset($_POST['quantityBackup']))
			self::$smarty->assign('quantityBackup', (int)$_POST['quantityBackup']);
		self::$smarty->assign('customizationFormTarget', $customizationFormTarget);
	}

	public function formatQuantityDiscounts($specificPrices, $price, $taxRate)
	{
		foreach ($specificPrices as $key => &$row)
		{
			$row['quantity'] = &$row['from_quantity'];
			// The price may be directly set
			if ($row['price'] != 0)
			{
				$cur_price = (Product::$_taxCalculationMethod == PS_TAX_EXC ? $row['price'] : $row['price'] * (1 + $taxRate / 100));
				if ($row['reduction_type'] == 'amount')
					$cur_price = Product::$_taxCalculationMethod == PS_TAX_INC ? $cur_price - $row['reduction'] : $cur_price - ($row['reduction'] / (1 + $taxRate / 100));
				else
					$cur_price = $cur_price * (1 - $row['reduction']);
				$row['real_value'] = $price - $cur_price;
			}
			else
			{
				global $cookie;
				$id_currency = (int)$cookie->id_currency;

				if ($row['reduction_type'] == 'amount')
				{
					$reduction_amount = $row['reduction'];
					if (!$row['id_currency'])
						$reduction_amount = Tools::convertPrice($reduction_amount, $id_currency);
					$row['real_value'] = Product::$_taxCalculationMethod == PS_TAX_INC ? $reduction_amount : $reduction_amount / (1 + $taxRate / 100);
				}
				else
					$row['real_value'] = $row['reduction'] * 100;
			}
			$row['nextQuantity'] = (isset($specificPrices[$key + 1]) ? (int)$specificPrices[$key + 1]['from_quantity'] : -1);
		}

		return $specificPrices;
	}
}