<?php
/*
* 2007-2015 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  2007-2015 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class OrderOpcControllerCore extends ParentOrderController
{
	public $php_self = 'order-opc';
	public $isLogged;

	protected $ajax_refresh = false;

	/**
	 * Initialize order opc controller
	 * @see FrontController::init()
	 */
	public function init()
	{
		parent::init();

		if ($this->nbProducts)
			$this->context->smarty->assign('virtual_cart', $this->context->cart->isVirtualCart());

		$this->context->smarty->assign('is_multi_address_delivery', $this->context->cart->isMultiAddressDelivery() || ((int)Tools::getValue('multi-shipping') == 1));
		$this->context->smarty->assign('open_multishipping_fancybox', (int)Tools::getValue('multi-shipping') == 1);

		if ($this->context->cart->nbProducts())
		{
			if (Tools::isSubmit('ajax'))
			{
				if (Tools::isSubmit('method'))
				{
					switch (Tools::getValue('method'))
					{
						case 'updateMessage':
							if (Tools::isSubmit('message'))
							{
								$txt_message = urldecode(Tools::getValue('message'));
								$this->_updateMessage($txt_message);
								if (count($this->errors))
									$this->ajaxDie('{"hasError" : true, "errors" : ["'.implode('\',\'', $this->errors).'"]}');
								$this->ajaxDie(true);
							}
							break;

						case 'updateCarrierAndGetPayments':
							if ((Tools::isSubmit('delivery_option') || Tools::isSubmit('id_carrier')) && Tools::isSubmit('recyclable') && Tools::isSubmit('gift') && Tools::isSubmit('gift_message'))
							{
								$this->_assignWrappingAndTOS();
								if ($this->_processCarrier())
								{
									$carriers = $this->context->cart->simulateCarriersOutput();
									$return = array_merge(array(
										'HOOK_TOP_PAYMENT' => Hook::exec('displayPaymentTop'),
										'HOOK_PAYMENT' => $this->_getPaymentMethods(),
										'carrier_data' => $this->_getCarrierList(),
										'HOOK_BEFORECARRIER' => Hook::exec('displayBeforeCarrier', array('carriers' => $carriers))
										),
										$this->getFormatedSummaryDetail()
									);
									Cart::addExtraCarriers($return);
									$this->ajaxDie(Tools::jsonEncode($return));
								}
								else
									$this->errors[] = Tools::displayError('An error occurred while updating the cart.');
								if (count($this->errors))
									$this->ajaxDie('{"hasError" : true, "errors" : ["'.implode('\',\'', $this->errors).'"]}');
								exit;
							}
							break;

						case 'updateTOSStatusAndGetPayments':
							if (Tools::isSubmit('checked'))
							{
								$this->context->cookie->checkedTOS = (int)Tools::getValue('checked');
								$this->ajaxDie(Tools::jsonEncode(array(
									'HOOK_TOP_PAYMENT' => Hook::exec('displayPaymentTop'),
									'HOOK_PAYMENT' => $this->_getPaymentMethods()
								)));
							}
							break;

						case 'getCarrierList':
							$this->ajaxDie(Tools::jsonEncode($this->_getCarrierList()));
							break;

						case 'editCustomer':
							if (!$this->isLogged || !$this->context->customer->is_guest)
								exit;

							if (Validate::isEmail($email = Tools::getValue('email')) && !empty($email))
								if (Customer::customerExists($email))
									$this->errors[] = Tools::displayError('An account using this email address has already been registered.', false);

							if (Tools::getValue('years'))
								$this->context->customer->birthday = (int)Tools::getValue('years').'-'.(int)Tools::getValue('months').'-'.(int)Tools::getValue('days');

							$_POST['lastname'] = $_POST['customer_lastname'];
							$_POST['firstname'] = $_POST['customer_firstname'];
							$this->errors = array_merge($this->errors, $this->context->customer->validateController());
							$this->context->customer->newsletter = (int)Tools::isSubmit('newsletter');
							$this->context->customer->optin = (int)Tools::isSubmit('optin');
							$this->context->customer->is_guest = (Tools::isSubmit('is_new_customer') ? !Tools::getValue('is_new_customer', 1) : 0);
							$return = array(
								'hasError' => !empty($this->errors),
								'errors' => $this->errors,
								'id_customer' => (int)$this->context->customer->id,
								'token' => Tools::getToken(false)
							);
							if (!count($this->errors))
								$return['isSaved'] = (bool)$this->context->customer->update();
							else
								$return['isSaved'] = false;
							$this->ajaxDie(Tools::jsonEncode($return));
							break;

						case 'getAddressBlockAndCarriersAndPayments':
							if ($this->context->customer->isLogged() || $this->context->customer->isGuest())
							{
								// check if customer have addresses
								if (!Customer::getAddressesTotalById($this->context->customer->id))
									$this->ajaxDie(Tools::jsonEncode(array('no_address' => 1)));
								if (file_exists(_PS_MODULE_DIR_.'blockuserinfo/blockuserinfo.php'))
								{
									include_once(_PS_MODULE_DIR_.'blockuserinfo/blockuserinfo.php');
									$block_user_info = new BlockUserInfo();
								}
								$this->context->smarty->assign('isVirtualCart', $this->context->cart->isVirtualCart());
								$this->_processAddressFormat();
								$this->_assignAddress();

								if (!($formated_address_fields_values_list = $this->context->smarty->getTemplateVars('formatedAddressFieldsValuesList')))
									$formated_address_fields_values_list = array();

								// Wrapping fees
								$wrapping_fees = $this->context->cart->getGiftWrappingPrice(false);
								$wrapping_fees_tax_inc = $this->context->cart->getGiftWrappingPrice();
								$is_adv_api = Tools::getValue('isAdvApi');

								if ($is_adv_api)
								{
									$tpl = 'order-address-advanced.tpl';
									$this->context->smarty->assign(
										array('products' => $this->context->cart->getProducts())
									);
								}
								else
									$tpl = 'order-address.tpl';

								$return = array_merge(array(
									'order_opc_adress' => $this->context->smarty->fetch(_PS_THEME_DIR_.$tpl),
									'block_user_info' => (isset($block_user_info) ? $block_user_info->hookDisplayTop(array()) : ''),
									'formatedAddressFieldsValuesList' => $formated_address_fields_values_list,
									'carrier_data' => ($is_adv_api ? '' : $this->_getCarrierList()),
									'HOOK_TOP_PAYMENT' => ($is_adv_api ? '' : Hook::exec('displayPaymentTop')),
									'HOOK_PAYMENT' => ($is_adv_api ? '' : $this->_getPaymentMethods()),
									'no_address' => 0,
									'gift_price' => Tools::displayPrice(Tools::convertPrice(
										Product::getTaxCalculationMethod() == 1 ? $wrapping_fees : $wrapping_fees_tax_inc,
										new Currency((int)$this->context->cookie->id_currency)))
									),
									$this->getFormatedSummaryDetail()
								);
								$this->ajaxDie(Tools::jsonEncode($return));
							}
							die(Tools::displayError());
							break;

						case 'makeFreeOrder':
							/* Bypass payment step if total is 0 */
							if (($id_order = $this->_checkFreeOrder()) && $id_order)
							{
								$order = new Order((int)$id_order);
								$email = $this->context->customer->email;
								if ($this->context->customer->is_guest)
									$this->context->customer->logout(); // If guest we clear the cookie for security reason
								$this->ajaxDie('freeorder:'.$order->reference.':'.$email);
							}
							exit;
							break;

						case 'updateAddressesSelected':
							if ($this->context->customer->isLogged(true))
							{
								$address_delivery = new Address((int)Tools::getValue('id_address_delivery'));
								$this->context->smarty->assign('isVirtualCart', $this->context->cart->isVirtualCart());
								$address_invoice = ((int)Tools::getValue('id_address_delivery') == (int)Tools::getValue('id_address_invoice') ? $address_delivery : new Address((int)Tools::getValue('id_address_invoice')));
								if ($address_delivery->id_customer != $this->context->customer->id || $address_invoice->id_customer != $this->context->customer->id)
									$this->errors[] = Tools::displayError('This address is not yours.');
								elseif (!Address::isCountryActiveById((int)Tools::getValue('id_address_delivery')))
									$this->errors[] = Tools::displayError('This address is not in a valid area.');
								elseif (!Validate::isLoadedObject($address_delivery) || !Validate::isLoadedObject($address_invoice) || $address_invoice->deleted || $address_delivery->deleted)
									$this->errors[] = Tools::displayError('This address is invalid.');
								else
								{
									$this->context->cart->id_address_delivery = (int)Tools::getValue('id_address_delivery');
									$this->context->cart->id_address_invoice = Tools::isSubmit('same') ? $this->context->cart->id_address_delivery : (int)Tools::getValue('id_address_invoice');
									if (!$this->context->cart->update())
										$this->errors[] = Tools::displayError('An error occurred while updating your cart.');

									$infos = Address::getCountryAndState((int)$this->context->cart->id_address_delivery);
									if (isset($infos['id_country']) && $infos['id_country'])
									{
										$country = new Country((int)$infos['id_country']);
										$this->context->country = $country;
									}

									// Address has changed, so we check if the cart rules still apply
									$cart_rules = $this->context->cart->getCartRules();
									CartRule::autoRemoveFromCart($this->context);
									CartRule::autoAddToCart($this->context);
									if ((int)Tools::getValue('allow_refresh'))
									{
										// If the cart rules has changed, we need to refresh the whole cart
										$cart_rules2 = $this->context->cart->getCartRules();
										if (count($cart_rules2) != count($cart_rules))
											$this->ajax_refresh = true;
										else
										{
											$rule_list = array();
											foreach ($cart_rules2 as $rule)
												$rule_list[] = $rule['id_cart_rule'];
											foreach ($cart_rules as $rule)
												if (!in_array($rule['id_cart_rule'], $rule_list))
												{
													$this->ajax_refresh = true;
													break;
												}
										}
									}

									if (!$this->context->cart->isMultiAddressDelivery())
										$this->context->cart->setNoMultishipping(); // As the cart is no multishipping, set each delivery address lines with the main delivery address

									if (!count($this->errors))
									{
										$result = $this->_getCarrierList();
										// Wrapping fees
										$wrapping_fees = $this->context->cart->getGiftWrappingPrice(false);
										$wrapping_fees_tax_inc = $this->context->cart->getGiftWrappingPrice();
										$result = array_merge($result, array(
											'HOOK_TOP_PAYMENT' => Hook::exec('displayPaymentTop'),
											'HOOK_PAYMENT' => $this->_getPaymentMethods(),
											'gift_price' => Tools::displayPrice(Tools::convertPrice(Product::getTaxCalculationMethod() == 1 ? $wrapping_fees : $wrapping_fees_tax_inc, new Currency((int)$this->context->cookie->id_currency))),
											'carrier_data' => $this->_getCarrierList(),
											'refresh' => (bool)$this->ajax_refresh),
											$this->getFormatedSummaryDetail()
										);
										$this->ajaxDie(Tools::jsonEncode($result));
									}
								}
								if (count($this->errors))
									$this->ajaxDie(Tools::jsonEncode(array(
										'hasError' => true,
										'errors' => $this->errors
									)));
							}
							die(Tools::displayError());
							break;

						case 'multishipping':
							$this->_assignSummaryInformations();
							$this->context->smarty->assign('product_list', $this->context->cart->getProducts());

							if ($this->context->customer->id)
								$this->context->smarty->assign('address_list', $this->context->customer->getAddresses($this->context->language->id));
							else
								$this->context->smarty->assign('address_list', array());
							$this->setTemplate(_PS_THEME_DIR_.'order-address-multishipping-products.tpl');
							$this->display();
							$this->ajaxDie();
							break;

						case 'cartReload':
							$this->_assignSummaryInformations();
							if ($this->context->customer->id)
								$this->context->smarty->assign('address_list', $this->context->customer->getAddresses($this->context->language->id));
							else
								$this->context->smarty->assign('address_list', array());
							$this->context->smarty->assign('opc', true);
							$this->setTemplate(_PS_THEME_DIR_.'shopping-cart.tpl');
							$this->display();
							$this->ajaxDie();
							break;

						case 'noMultiAddressDelivery':
							$this->context->cart->setNoMultishipping();
							$this->ajaxDie();
							break;

						default:
							throw new PrestaShopException('Unknown method "'.Tools::getValue('method').'"');
					}
				}
				else
					throw new PrestaShopException('Method is not defined');
			}
		}
		elseif (Tools::isSubmit('ajax'))
		{
			$this->errors[] = Tools::displayError('There is no product in your cart.');
			$this->ajaxDie('{"hasError" : true, "errors" : ["'.implode('\',\'', $this->errors).'"]}');
		}
	}

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

		if (!$this->useMobileTheme())
		{
			// Adding CSS style sheet
			$this->addCSS(_THEME_CSS_DIR_.'order-opc.css');
			// Adding JS files
			$this->addJS(_THEME_JS_DIR_.'order-opc.js');
			$this->addJqueryPlugin('scrollTo');
		}
		else
			$this->addJS(_THEME_MOBILE_JS_DIR_.'opc.js');

		$this->addJS(array(
			_THEME_JS_DIR_.'tools/vatManagement.js',
			_THEME_JS_DIR_.'tools/statesManagement.js',
			_THEME_JS_DIR_.'order-carrier.js',
			_PS_JS_DIR_.'validate.js'
		));
	}

	/**
	 * Assign template vars related to page content
	 * @see FrontController::initContent()
	 */
	public function initContent()
	{
		parent::initContent();

		/* id_carrier is not defined in database before choosing a carrier, set it to a default one to match a potential cart _rule */
		if (empty($this->context->cart->id_carrier))
		{
			$checked = $this->context->cart->simulateCarrierSelectedOutput();
			$checked = ((int)Cart::desintifier($checked));
			$this->context->cart->id_carrier = $checked;
			$this->context->cart->update();
			CartRule::autoRemoveFromCart($this->context);
			CartRule::autoAddToCart($this->context);
		}

		// SHOPPING CART
		$this->_assignSummaryInformations();
		// WRAPPING AND TOS
		$this->_assignWrappingAndTOS();

		if (Configuration::get('PS_RESTRICT_DELIVERED_COUNTRIES'))
			$countries = Carrier::getDeliveredCountries($this->context->language->id, true, true);
		else
			$countries = Country::getCountries($this->context->language->id, true);

		// If a rule offer free-shipping, force hidding shipping prices
		$free_shipping = false;
		foreach ($this->context->cart->getCartRules() as $rule)
			if ($rule['free_shipping'] && !$rule['carrier_restriction'])
			{
				$free_shipping = true;
				break;
			}

		$this->context->smarty->assign(array(
			'free_shipping' => $free_shipping,
			'isGuest' => isset($this->context->cookie->is_guest) ? $this->context->cookie->is_guest : 0,
			'countries' => $countries,
			'sl_country' => (int)Tools::getCountry(),
			'PS_GUEST_CHECKOUT_ENABLED' => Configuration::get('PS_GUEST_CHECKOUT_ENABLED'),
			'errorCarrier' => Tools::displayError('You must choose a carrier.', false),
			'errorTOS' => Tools::displayError('You must accept the Terms of Service.', false),
			'isPaymentStep' => isset($_GET['isPaymentStep']) && $_GET['isPaymentStep'],
			'genders' => Gender::getGenders(),
			'one_phone_at_least' => (int)Configuration::get('PS_ONE_PHONE_AT_LEAST'),
			'HOOK_CREATE_ACCOUNT_FORM' => Hook::exec('displayCustomerAccountForm'),
			'HOOK_CREATE_ACCOUNT_TOP' => Hook::exec('displayCustomerAccountFormTop')
		));
		$years = Tools::dateYears();
		$months = Tools::dateMonths();
		$days = Tools::dateDays();
		$this->context->smarty->assign(array(
			'years' => $years,
			'months' => $months,
			'days' => $days,
		));

		/* Load guest informations */
		if ($this->isLogged && $this->context->cookie->is_guest)
			$this->context->smarty->assign('guestInformations', $this->_getGuestInformations());
		// ADDRESS
		if ($this->isLogged)
			$this->_assignAddress();
		// CARRIER
		$this->_assignCarrier();
		// PAYMENT
		$this->_assignPayment();
		Tools::safePostVars();

		$newsletter = Configuration::get('PS_CUSTOMER_NWSL') || (Module::isInstalled('blocknewsletter') && Module::getInstanceByName('blocknewsletter')->active);
		$this->context->smarty->assign('newsletter', $newsletter);
		$this->context->smarty->assign('optin', (bool)Configuration::get('PS_CUSTOMER_OPTIN'));
		$this->context->smarty->assign('field_required', $this->context->customer->validateFieldsRequiredDatabase());

		$this->_processAddressFormat();

		if ((bool)Configuration::get('PS_ADVANCED_PAYMENT_API'))
		{
			$this->addJS(_THEME_JS_DIR_ . 'advanced-payment-api.js');
			$this->setTemplate(_PS_THEME_DIR_ . 'order-opc-advanced.tpl');
		}
		else
			$this->setTemplate(_PS_THEME_DIR_.'order-opc.tpl');
	}

	protected function _getGuestInformations()
	{
		$customer = $this->context->customer;
		$address_delivery = new Address($this->context->cart->id_address_delivery);

		$id_address_invoice = $this->context->cart->id_address_invoice != $this->context->cart->id_address_delivery ? (int)$this->context->cart->id_address_invoice : 0;
		$address_invoice = new Address($id_address_invoice);

		if ($customer->birthday)
			$birthday = explode('-', $customer->birthday);
		else
			$birthday = array('0', '0', '0');

		return array(
			'id_customer' => (int)$customer->id,
			'email' => Tools::htmlentitiesUTF8($customer->email),
			'customer_lastname' => Tools::htmlentitiesUTF8($customer->lastname),
			'customer_firstname' => Tools::htmlentitiesUTF8($customer->firstname),
			'newsletter' => (int)$customer->newsletter,
			'optin' => (int)$customer->optin,
			'id_address_delivery' => (int)$this->context->cart->id_address_delivery,
			'company' => Tools::htmlentitiesUTF8($address_delivery->company),
			'lastname' => Tools::htmlentitiesUTF8($address_delivery->lastname),
			'firstname' => Tools::htmlentitiesUTF8($address_delivery->firstname),
			'vat_number' => Tools::htmlentitiesUTF8($address_delivery->vat_number),
			'dni' => Tools::htmlentitiesUTF8($address_delivery->dni),
			'address1' => Tools::htmlentitiesUTF8($address_delivery->address1),
			'postcode' => Tools::htmlentitiesUTF8($address_delivery->postcode),
			'city' => Tools::htmlentitiesUTF8($address_delivery->city),
			'phone' => Tools::htmlentitiesUTF8($address_delivery->phone),
			'phone_mobile' => Tools::htmlentitiesUTF8($address_delivery->phone_mobile),
			'id_country' => (int)$address_delivery->id_country,
			'id_state' => (int)$address_delivery->id_state,
			'id_gender' => (int)$customer->id_gender,
			'sl_year' => $birthday[0],
			'sl_month' => $birthday[1],
			'sl_day' => $birthday[2],
			'company_invoice' => Tools::htmlentitiesUTF8($address_invoice->company),
			'lastname_invoice' => Tools::htmlentitiesUTF8($address_invoice->lastname),
			'firstname_invoice' => Tools::htmlentitiesUTF8($address_invoice->firstname),
			'vat_number_invoice' => Tools::htmlentitiesUTF8($address_invoice->vat_number),
			'dni_invoice' => Tools::htmlentitiesUTF8($address_invoice->dni),
			'address1_invoice' => Tools::htmlentitiesUTF8($address_invoice->address1),
			'address2_invoice' => Tools::htmlentitiesUTF8($address_invoice->address2),
			'postcode_invoice' => Tools::htmlentitiesUTF8($address_invoice->postcode),
			'city_invoice' => Tools::htmlentitiesUTF8($address_invoice->city),
			'phone_invoice' => Tools::htmlentitiesUTF8($address_invoice->phone),
			'phone_mobile_invoice' => Tools::htmlentitiesUTF8($address_invoice->phone_mobile),
			'id_country_invoice' => (int)$address_invoice->id_country,
			'id_state_invoice' => (int)$address_invoice->id_state,
			'id_address_invoice' => $id_address_invoice,
			'invoice_company' => Tools::htmlentitiesUTF8($address_invoice->company),
			'invoice_lastname' => Tools::htmlentitiesUTF8($address_invoice->lastname),
			'invoice_firstname' => Tools::htmlentitiesUTF8($address_invoice->firstname),
			'invoice_vat_number' => Tools::htmlentitiesUTF8($address_invoice->vat_number),
			'invoice_dni' => Tools::htmlentitiesUTF8($address_invoice->dni),
			'invoice_address' => $this->context->cart->id_address_invoice !== $this->context->cart->id_address_delivery,
			'invoice_address1' => Tools::htmlentitiesUTF8($address_invoice->address1),
			'invoice_address2' => Tools::htmlentitiesUTF8($address_invoice->address2),
			'invoice_postcode' => Tools::htmlentitiesUTF8($address_invoice->postcode),
			'invoice_city' => Tools::htmlentitiesUTF8($address_invoice->city),
			'invoice_phone' => Tools::htmlentitiesUTF8($address_invoice->phone),
			'invoice_phone_mobile' => Tools::htmlentitiesUTF8($address_invoice->phone_mobile),
			'invoice_id_country' => (int)$address_invoice->id_country,
			'invoice_id_state' => (int)$address_invoice->id_state,
		);
	}

	protected function _assignCarrier()
	{
		if (!$this->isLogged)
		{
			$carriers = $this->context->cart->simulateCarriersOutput();
			$old_message = Message::getMessageByCartId((int)$this->context->cart->id);
			$this->context->smarty->assign(array(
				'HOOK_EXTRACARRIER' => null,
				'HOOK_EXTRACARRIER_ADDR' => null,
				'oldMessage' => isset($old_message['message'])? $old_message['message'] : '',
				'HOOK_BEFORECARRIER' => Hook::exec('displayBeforeCarrier', array(
					'carriers' => $carriers,
					'checked' => $this->context->cart->simulateCarrierSelectedOutput(),
					'delivery_option_list' => $this->context->cart->getDeliveryOptionList(),
					'delivery_option' => $this->context->cart->getDeliveryOption(null, true)
				))
			));
		}
		else
			parent::_assignCarrier();
	}

	protected function _assignPayment()
	{
		if ((bool)Configuration::get('PS_ADVANCED_PAYMENT_API')) {
			$this->context->smarty->assign(array(
				'HOOK_TOP_PAYMENT' => ($this->isLogged ? Hook::exec('displayPaymentTop') : ''),
				'HOOK_PAYMENT' => $this->_getPaymentMethods(),
				'HOOK_ADVANCED_PAYMENT' => Hook::exec('advancedPaymentOptions', array(), null, true),
				'link_conditions' => $this->link_conditions
			));
		} else {
			$this->context->smarty->assign(array(
				'HOOK_TOP_PAYMENT' => ($this->isLogged ? Hook::exec('displayPaymentTop') : ''),
				'HOOK_PAYMENT' => $this->_getPaymentMethods()
			));
		}
	}

	protected function _getPaymentMethods()
	{
		if (!$this->isLogged)
			return '<p class="warning">'.Tools::displayError('Please sign in to see payment methods.').'</p>';
		if ($this->context->cart->OrderExists())
			return '<p class="warning">'.Tools::displayError('Error: This order has already been validated.').'</p>';
		if (!$this->context->cart->id_customer || !Customer::customerIdExistsStatic($this->context->cart->id_customer) || Customer::isBanned($this->context->cart->id_customer))
			return '<p class="warning">'.Tools::displayError('Error: No customer.').'</p>';
		$address_delivery = new Address($this->context->cart->id_address_delivery);
		$address_invoice = ($this->context->cart->id_address_delivery == $this->context->cart->id_address_invoice ? $address_delivery : new Address($this->context->cart->id_address_invoice));
		if (!$this->context->cart->id_address_delivery || !$this->context->cart->id_address_invoice || !Validate::isLoadedObject($address_delivery) || !Validate::isLoadedObject($address_invoice) || $address_invoice->deleted || $address_delivery->deleted)
			return '<p class="warning">'.Tools::displayError('Error: Please select an address.').'</p>';
		if (count($this->context->cart->getDeliveryOptionList()) == 0 && !$this->context->cart->isVirtualCart())
		{
			if ($this->context->cart->isMultiAddressDelivery())
				return '<p class="warning">'.Tools::displayError('Error: None of your chosen carriers deliver to some of the addresses you have selected.').'</p>';
			else
				return '<p class="warning">'.Tools::displayError('Error: None of your chosen carriers deliver to the address you have selected.').'</p>';
		}
		if (!$this->context->cart->getDeliveryOption(null, false) && !$this->context->cart->isVirtualCart())
			return '<p class="warning">'.Tools::displayError('Error: Please choose a carrier.').'</p>';
		if (!$this->context->cart->id_currency)
			return '<p class="warning">'.Tools::displayError('Error: No currency has been selected.').'</p>';
		if (!$this->context->cookie->checkedTOS && Configuration::get('PS_CONDITIONS'))
			return '<p class="warning">'.Tools::displayError('Please accept the Terms of Service.').'</p>';

		/* If some products have disappear */
		if (is_array($product = $this->context->cart->checkQuantities(true)))
			return '<p class="warning">'.sprintf(Tools::displayError('An item (%s) in your cart is no longer available in this quantity. You cannot proceed with your order until the quantity is adjusted.'), $product['name']).'</p>';

		if ((int)$id_product = $this->context->cart->checkProductsAccess())
			return '<p class="warning">'.sprintf(Tools::displayError('An item in your cart is no longer available (%s). You cannot proceed with your order.'), Product::getProductName((int)$id_product)).'</p>';

		/* Check minimal amount */
		$currency = Currency::getCurrency((int)$this->context->cart->id_currency);

		$minimal_purchase = Tools::convertPrice((float)Configuration::get('PS_PURCHASE_MINIMUM'), $currency);
		if ($this->context->cart->getOrderTotal(false, Cart::ONLY_PRODUCTS) < $minimal_purchase)
			return '<p class="warning">'.sprintf(
				Tools::displayError('A minimum purchase total of %1s (tax excl.) is required to validate your order, current purchase total is %2s (tax excl.).'),
				Tools::displayPrice($minimal_purchase, $currency), Tools::displayPrice($this->context->cart->getOrderTotal(false, Cart::ONLY_PRODUCTS), $currency)
			).'</p>';

		/* Bypass payment step if total is 0 */
		if ($this->context->cart->getOrderTotal() <= 0)
			return '<p class="center"><button class="button btn btn-default button-medium" name="confirmOrder" id="confirmOrder" onclick="confirmFreeOrder();" type="submit"> <span>'.Tools::displayError('I confirm my order.').'</span></button></p>';

		$return = Hook::exec('displayPayment');
		if (!$return)
			return '<p class="warning">'.Tools::displayError('No payment method is available for use at this time. ').'</p>';
		return $return;
	}

	protected function _getCarrierList()
	{
		$address_delivery = new Address($this->context->cart->id_address_delivery);

		$cms = new CMS(Configuration::get('PS_CONDITIONS_CMS_ID'), $this->context->language->id);
		$link_conditions = $this->context->link->getCMSLink($cms, $cms->link_rewrite, Configuration::get('PS_SSL_ENABLED'));
		if (!strpos($link_conditions, '?'))
			$link_conditions .= '?content_only=1';
		else
			$link_conditions .= '&content_only=1';

		$carriers = $this->context->cart->simulateCarriersOutput();
		$delivery_option = $this->context->cart->getDeliveryOption(null, false, false);

		$wrapping_fees = $this->context->cart->getGiftWrappingPrice(false);
		$wrapping_fees_tax_inc = $this->context->cart->getGiftWrappingPrice();
		$old_message = Message::getMessageByCartId((int)$this->context->cart->id);

		$free_shipping = false;
		foreach ($this->context->cart->getCartRules() as $rule)
		{
			if ($rule['free_shipping'] && !$rule['carrier_restriction'])
			{
				$free_shipping = true;
				break;
			}
		}

		$this->context->smarty->assign('isVirtualCart', $this->context->cart->isVirtualCart());

		$vars = array(
			'advanced_payment_api' => (bool)Configuration::get('PS_ADVANCED_PAYMENT_API'),
			'free_shipping' => $free_shipping,
			'checkedTOS' => (int)$this->context->cookie->checkedTOS,
			'recyclablePackAllowed' => (int)Configuration::get('PS_RECYCLABLE_PACK'),
			'giftAllowed' => (int)Configuration::get('PS_GIFT_WRAPPING'),
			'cms_id' => (int)Configuration::get('PS_CONDITIONS_CMS_ID'),
			'conditions' => (int)Configuration::get('PS_CONDITIONS'),
			'link_conditions' => $link_conditions,
			'recyclable' => (int)$this->context->cart->recyclable,
			'gift_wrapping_price' => (float)$wrapping_fees,
			'total_wrapping_cost' => Tools::convertPrice($wrapping_fees_tax_inc, $this->context->currency),
			'total_wrapping_tax_exc_cost' => Tools::convertPrice($wrapping_fees, $this->context->currency),
			'delivery_option_list' => $this->context->cart->getDeliveryOptionList(),
			'carriers' => $carriers,
			'checked' => $this->context->cart->simulateCarrierSelectedOutput(),
			'delivery_option' => $delivery_option,
			'address_collection' => $this->context->cart->getAddressCollection(),
			'opc' => true,
			'oldMessage' => isset($old_message['message'])? $old_message['message'] : '',
			'HOOK_BEFORECARRIER' => Hook::exec('displayBeforeCarrier', array(
				'carriers' => $carriers,
				'delivery_option_list' => $this->context->cart->getDeliveryOptionList(),
				'delivery_option' => $delivery_option
			))
		);

		Cart::addExtraCarriers($vars);

		$this->context->smarty->assign($vars);

		if (!Address::isCountryActiveById((int)$this->context->cart->id_address_delivery) && $this->context->cart->id_address_delivery != 0)
			$this->errors[] = Tools::displayError('This address is not in a valid area.');
		elseif ((!Validate::isLoadedObject($address_delivery) || $address_delivery->deleted) && $this->context->cart->id_address_delivery != 0)
			$this->errors[] = Tools::displayError('This address is invalid.');
		else
		{
			$result = array(
				'HOOK_BEFORECARRIER' => Hook::exec('displayBeforeCarrier', array(
					'carriers' => $carriers,
					'delivery_option_list' => $this->context->cart->getDeliveryOptionList(),
					'delivery_option' => $this->context->cart->getDeliveryOption(null, true)
				)),
				'carrier_block' => $this->context->smarty->fetch(_PS_THEME_DIR_.'order-carrier.tpl')
			);

			Cart::addExtraCarriers($result);
			return $result;
		}
		if (count($this->errors))
			return array(
				'hasError' => true,
				'errors' => $this->errors,
				'carrier_block' => $this->context->smarty->fetch(_PS_THEME_DIR_.'order-carrier.tpl')
			);
	}

	protected function _processAddressFormat()
	{
		$address_delivery = new Address((int)$this->context->cart->id_address_delivery);
		$address_invoice = new Address((int)$this->context->cart->id_address_invoice);

		$inv_adr_fields = AddressFormat::getOrderedAddressFields((int)$address_delivery->id_country, false, true);
		$dlv_adr_fields = AddressFormat::getOrderedAddressFields((int)$address_invoice->id_country, false, true);
		$require_form_fields_list = AddressFormat::getFieldsRequired();

		// Add missing require fields for a new user susbscription form
		foreach ($require_form_fields_list as $field_name)
			if (!in_array($field_name, $dlv_adr_fields))
				$dlv_adr_fields[] = trim($field_name);

		foreach ($require_form_fields_list as $field_name)
			if (!in_array($field_name, $inv_adr_fields))
				$inv_adr_fields[] = trim($field_name);

		$inv_all_fields = array();
		$dlv_all_fields = array();

		foreach (array('inv', 'dlv') as $adr_type)
		{
			foreach (${$adr_type.'_adr_fields'} as $fields_line)
				foreach (explode(' ', $fields_line) as $field_item)
					${$adr_type.'_all_fields'}[] = trim($field_item);

			${$adr_type.'_adr_fields'} = array_unique(${$adr_type.'_adr_fields'});
			${$adr_type.'_all_fields'} = array_unique(${$adr_type.'_all_fields'});

			$this->context->smarty->assign(array(
				$adr_type.'_adr_fields' => ${$adr_type.'_adr_fields'},
				$adr_type.'_all_fields' => ${$adr_type.'_all_fields'},
				'required_fields' => $require_form_fields_list
			));
		}
	}

	protected function getFormatedSummaryDetail()
	{
		$result = array('summary' => $this->context->cart->getSummaryDetails(),
						'customizedDatas' => Product::getAllCustomizedDatas($this->context->cart->id, null, true));

		foreach ($result['summary']['products'] as $key => &$product)
		{
			$product['quantity_without_customization'] = $product['quantity'];
			if ($result['customizedDatas'])
			{
				if (isset($result['customizedDatas'][(int)$product['id_product']][(int)$product['id_product_attribute']]))
					foreach ($result['customizedDatas'][(int)$product['id_product']][(int)$product['id_product_attribute']] as $addresses)
						foreach ($addresses as $customization)
							$product['quantity_without_customization'] -= (int)$customization['quantity'];
			}
		}

		if ($result['customizedDatas'])
			Product::addCustomizationPrice($result['summary']['products'], $result['customizedDatas']);
		return $result;
	}

}
