<?php
class CartController extends CartControllerCore
{
    protected $id_configurator;
    
    protected function parseConfigurator()
    {
        $detectOptGroup = 'optgroup-';
        $postValues = Tools::getAllValues();
        
        if (count($postValues) > 0) {
            $sqlValues = array();
            foreach($postValues as $p => $v) {
                if (!empty($v)) {
                    if (substr($p, 0, strlen($detectOptGroup)) === $detectOptGroup) {
                        $ids = explode('-', substr($p, strlen($detectOptGroup)));
                        $id_configurator_opt_group = $ids[0];
                        $id_configurator_opt = $v;
                        $optValue = '';
                        if (isset($ids[1])) {
                            $id_configurator_opt = $ids[1];
                            // Set value for text, date, file
                            $optValue = $v;
                        }
                        
                        if (is_array($id_configurator_opt) && count($id_configurator_opt) > 0) {
                            foreach ($id_configurator_opt as $item) {
                                $price = Db::getInstance()->getValue('SELECT pcoi.`price` FROM `'._DB_PREFIX_.'configurator_opt` co,
                                     `'._DB_PREFIX_.'product_configurator_opt_impact` pcoi
                                    WHERE co.`id_configurator_opt` = pcoi.`id_configurator_opt` AND co.`id_configurator_opt` = '.(int)$item);
                                $sqlValues[] = '(@id_configurator, '.$this->id_product.', '.(int)$id_configurator_opt_group.', '.pSQL($item).', \''.pSQL($optValue).'\', '.$price.')';
                            }
                        } else {
                            $price = Db::getInstance()->getValue('SELECT pcoi.`price` FROM `'._DB_PREFIX_.'configurator_opt` co,
                                     `'._DB_PREFIX_.'product_configurator_opt_impact` pcoi
                                    WHERE co.`id_configurator_opt` = pcoi.`id_configurator_opt` AND co.`id_configurator_opt` = '.(int)$id_configurator_opt);
                            $sqlValues[] = '(@id_configurator, '.$this->id_product.', '.(int)$id_configurator_opt_group.', '.(int)$id_configurator_opt.', \''.pSQL($optValue).'\', '.$price.')';
                        }
                    }
                }
            }
            
            if (count($sqlValues) > 0) {
                if ($this->id_configurator === null) {
                    $this->id_configurator = 0;
                }
                
                if ($this->id_configurator == 0) {
                    // Get id_configurator max
                    $cmaxSql = 'SELECT IF(MAX(cp.id_configurator) IS NULL, 0, MAX(cp.id_configurator)) AS maxCp,
                            IF(MAX(cs.id_configurator) IS NULL, 0, MAX(cs.id_configurator)) AS maxCs
                        FROM ps_configurator_storage cs, ps_cart_product cp';
                    $max = Db::getInstance()->getRow($cmaxSql);
                    $this->id_configurator = ($max['maxCp'] > $max['maxCs'] ? $max['maxCp'] : $max['maxCs']) + 1;
                
                    // Assign id on cart_product
                    Db::getInstance()->update('cart_product', array(
                        'id_configurator' => (int)$this->id_configurator),
                        'id_cart='.(int)$this->context->cart->id.
                        ' AND id_product='.(int)$this->id_product.
                        ' AND id_address_delivery='.(int)$this->id_address_delivery.
                        ' AND id_shop='.(int)$this->context->cart->id_shop.
                        ' AND id_product_attribute='.(int)$this->id_product_attribute.
                        ' AND quantity='.(int)$this->qty
                        .' AND id_configurator = 0');
                }
                // Delete
                else {
                    Db::getInstance()->delete('configurator_storage', 'id_configurator = '.(int)$this->id_configurator);
                }
                                
                // Insert configuration
                Db::getInstance()->execute('SET @id_configurator = '.$this->id_configurator.';
                    INSERT INTO `'._DB_PREFIX_.'configurator_storage`
                    (`id_configurator`, `id_product`, `id_configurator_opt_group`, `id_configurator_opt`, `opt_value`, `price`)
                    VALUES '.implode(',', $sqlValues)
                );
            }
        }
    }
    
    protected function processDeleteProductInCart()
    {
        $customization_product = Db::getInstance()->executeS('SELECT * FROM `'._DB_PREFIX_.'customization`
		  WHERE `id_cart` = '.(int)$this->context->cart->id.' AND `id_product` = '.(int)$this->id_product.
            ' AND `id_customization` != '.(int)$this->customization_id);

        if (count($customization_product)) {
            $product = new Product((int)$this->id_product);
            if ($this->id_product_attribute > 0) {
                $minimal_quantity = (int)Attribute::getAttributeMinimalQty($this->id_product_attribute);
            } else {
                $minimal_quantity = (int)$product->minimal_quantity;
            }

            $total_quantity = 0;
            foreach ($customization_product as $custom) {
                $total_quantity += $custom['quantity'];
            }

            if ($total_quantity < $minimal_quantity) {
                $this->ajaxDie(Tools::jsonEncode(array(
                        'hasError' => true,
                        'errors' => array(sprintf(Tools::displayError('You must add %d minimum quantity', !Tools::getValue('ajax')), $minimal_quantity)),
                )));
            }
        }
        
        // Get id_configurator
        $id_configurator = Tools::getValue('id_configurator', 0);
        
        if ($this->context->cart->deleteProduct($this->id_product, $this->id_product_attribute, $this->customization_id, $this->id_address_delivery, true, $id_configurator)) {
            Hook::exec('actionAfterDeleteProductInCart', array(
                'id_cart' => (int)$this->context->cart->id,
                'id_product' => (int)$this->id_product,
                'id_product_attribute' => (int)$this->id_product_attribute,
                'customization_id' => (int)$this->customization_id,
                'id_address_delivery' => (int)$this->id_address_delivery
            ));
                         
            if (!Cart::getNbProducts((int)$this->context->cart->id)) {
                $this->context->cart->setDeliveryOption(null);
                $this->context->cart->gift = 0;
                $this->context->cart->gift_message = '';
                $this->context->cart->update();
            }
        }
        $removed = CartRule::autoRemoveFromCart();
        CartRule::autoAddToCart();
        if (count($removed) && (int)Tools::getValue('allow_refresh')) {
            $this->ajax_refresh = true;
        }
    }
    
    protected function processChangeProductInCart()
    {
        $mode = (Tools::getIsset('update') && $this->id_product) ? 'update' : 'add';
        
        if ($this->qty == 0) {
            $this->errors[] = Tools::displayError('Null quantity.', !Tools::getValue('ajax'));
        } elseif (!$this->id_product) {
            $this->errors[] = Tools::displayError('Product not found', !Tools::getValue('ajax'));
        }
        
        $product = new Product($this->id_product, true, $this->context->language->id);
        if (!$product->id || !$product->active || !$product->checkAccess($this->context->cart->id_customer)) {
            $this->errors[] = Tools::displayError('This product is no longer available.', !Tools::getValue('ajax'));
            return;
        }
        
        $qty_to_check = $this->qty;
        $cart_products = $this->context->cart->getProducts();
        
        $this->id_configurator = Tools::getValue('id_configurator', null);
        
        if (is_array($cart_products)) {
            foreach ($cart_products as $cart_product) {
                // Configurator
                if (isset($cart_product['id_configurator']) && $cart_product['id_configurator'] > 0) {
                    if ((!isset($this->id_product_attribute) || $cart_product['id_product_attribute'] == $this->id_product_attribute) &&
                        (isset($this->id_product) && $cart_product['id_product'] == $this->id_product)) {
                            
                            $qty_to_check = $cart_product['cart_quantity'];
                            
                            // Define configurator
                            $this->id_configurator = $cart_product['id_configurator'];
                            
                            if (Tools::getValue('op', 'up') == 'down') {
                                $qty_to_check -= $this->qty;
                            } else {
                                $qty_to_check += $this->qty;
                            }
                            
                            break;
                    }
                }
                // Default
                elseif ((!isset($this->id_product_attribute) || $cart_product['id_product_attribute'] == $this->id_product_attribute) &&
                    (isset($this->id_product) && $cart_product['id_product'] == $this->id_product)) {
                        $qty_to_check = $cart_product['cart_quantity'];
                        
                        if (Tools::getValue('op', 'up') == 'down') {
                            $qty_to_check -= $this->qty;
                        } else {
                            $qty_to_check += $this->qty;
                        }
                        
                        break;
                }
            }
        }

        // Check product quantity availability
        if ($this->id_product_attribute) {
            if (!Product::isAvailableWhenOutOfStock($product->out_of_stock) && !Attribute::checkAttributeQty($this->id_product_attribute, $qty_to_check)) {
                $this->errors[] = Tools::displayError('There isn\'t enough product in stock.', !Tools::getValue('ajax'));
            }
        } elseif ($product->hasAttributes()) {
            $minimumQuantity = ($product->out_of_stock == 2) ? !Configuration::get('PS_ORDER_OUT_OF_STOCK') : !$product->out_of_stock;
            $this->id_product_attribute = Product::getDefaultAttribute($product->id, $minimumQuantity);
            // @todo do something better than a redirect admin !!
            if (!$this->id_product_attribute) {
                Tools::redirectAdmin($this->context->link->getProductLink($product));
            } elseif (!Product::isAvailableWhenOutOfStock($product->out_of_stock) && !Attribute::checkAttributeQty($this->id_product_attribute, $qty_to_check)) {
                $this->errors[] = Tools::displayError('There isn\'t enough product in stock.', !Tools::getValue('ajax'));
            }
        } elseif (!$product->checkQty($qty_to_check)) {
            $this->errors[] = Tools::displayError('There isn\'t enough product in stock.', !Tools::getValue('ajax'));
        }
        
        // If no errors, process product addition
        if (!$this->errors && $mode == 'add') {
            // Add cart if no cart found
            if (!$this->context->cart->id) {
                if (Context::getContext()->cookie->id_guest) {
                    $guest = new Guest(Context::getContext()->cookie->id_guest);
                    $this->context->cart->mobile_theme = $guest->mobile_theme;
                }
                $this->context->cart->add();
                if ($this->context->cart->id) {
                    $this->context->cookie->id_cart = (int)$this->context->cart->id;
                }
            }

            // Check customizable fields
            if (!$product->hasAllRequiredCustomizableFields() && !$this->customization_id) {
                $this->errors[] = Tools::displayError('Please fill in all of the required fields, and then save your customizations.', !Tools::getValue('ajax'));
            }
            
            if (!$this->errors) {
                $cart_rules = $this->context->cart->getCartRules();
                $available_cart_rules = CartRule::getCustomerCartRules($this->context->language->id, (isset($this->context->customer->id) ? $this->context->customer->id : 0), true, true, true, $this->context->cart, false, true);
                
                // Configurator options
                $this->parseConfigurator();

                // Send configurator id
                $update_quantity = $this->context->cart->updateQty(
                    $this->qty,
                    $this->id_product,
                    $this->id_product_attribute,
                    $this->customization_id,
                    Tools::getValue('op', 'up'),
                    $this->id_address_delivery,
                    null,
                    true,
                    $this->id_configurator
                    );
                
                if ($update_quantity < 0) {
                    // If product has attribute, minimal quantity is set with minimal quantity of attribute
                    $minimal_quantity = ($this->id_product_attribute) ? Attribute::getAttributeMinimalQty($this->id_product_attribute) : $product->minimal_quantity;
                    $this->errors[] = sprintf(Tools::displayError('You must add %d minimum quantity', !Tools::getValue('ajax')), $minimal_quantity);
                } elseif (!$update_quantity) {
                    $this->errors[] = Tools::displayError('You already have the maximum quantity available for this product.', !Tools::getValue('ajax'));
                } elseif ((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)) {
                        $this->ajax_refresh = true;
                    } elseif (count($cart_rules2)) {
                        $rule_list = array();
                        foreach ($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;
                            }
                        }
                    } else {
                        $available_cart_rules2 = CartRule::getCustomerCartRules($this->context->language->id, (isset($this->context->customer->id) ? $this->context->customer->id : 0), true, true, true, $this->context->cart, false, true);
                        if (count($available_cart_rules2) != count($available_cart_rules)) {
                            $this->ajax_refresh = true;
                        } elseif (count($available_cart_rules2)) {
                            $rule_list = array();
                            foreach ($available_cart_rules2 as $rule) {
                                $rule_list[] = $rule['id_cart_rule'];
                            }
                            foreach ($cart_rules2 as $rule) {
                                if (!in_array($rule['id_cart_rule'], $rule_list)) {
                                    $this->ajax_refresh = true;
                                    break;
                                }
                            }
                        }
                    }
                }
            }
        }
        
        $removed = CartRule::autoRemoveFromCart();
        CartRule::autoAddToCart();
        if (count($removed) && (int)Tools::getValue('allow_refresh')) {
            $this->ajax_refresh = true;
        }
    }
}