<?php

/**
 * File from http://PrestaShow.pl
 *
 * DISCLAIMER
 * Do not edit or add to this file if you wish to upgrade this module to newer
 * versions in the future.
 *
 *  @authors     PrestaShow.pl <kontakt@prestashow.pl>
 *  @copyright   2015 PrestaShow.pl
 *  @license     http://PrestaShow.pl/license
 */
class Carrier extends CarrierCore
{

    public static function getAvailableCarrierList(Product $product, $id_warehouse, $id_address_delivery = null, $id_shop = null, $cart = null, &$error = array())
    {
        require_once _PS_MODULE_DIR_ . '/pshowimporter/config.php';

        static $ps_country_default = null;

        if ($ps_country_default === null) {
            $ps_country_default = Configuration::get('PS_COUNTRY_DEFAULT');
        }

        if (is_null($id_shop)) {
            $id_shop = Context::getContext()->shop->id;
        }
        if (is_null($cart)) {
            $cart = Context::getContext()->cart;
        }

        if (is_null($error) || !is_array($error)) {
            $error = array();
        }

        $id_address = (int) ((!is_null($id_address_delivery) && $id_address_delivery != 0) ? $id_address_delivery : $cart->id_address_delivery);
        if ($id_address) {
            $id_zone = Address::getZoneById($id_address);

            // Check the country of the address is activated
            if (!Address::isCountryActiveById($id_address)) {
                return array();
            }
        } else {
            $country = new Country($ps_country_default);
            $id_zone = $country->id_zone;
        }

        // Does the product is linked with carriers?
        $cache_id = 'Carrier::getAvailableCarrierList_' . (int) $product->id . '-' . (int) $id_shop;
        if (!Cache::isStored($cache_id)) {
            $query = new DbQuery();
            $query->select('id_carrier');
            $query->from('product_carrier', 'pc');
            $query->innerJoin(
                'carrier', 'c', 'c.id_reference = pc.id_carrier_reference AND c.deleted = 0 AND c.active = 1'
            );
            $query->where('pc.id_product = ' . (int) $product->id);
            $query->where('pc.id_shop = ' . (int) $id_shop);

            $carriers_for_product = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($query);
            Cache::store($cache_id, $carriers_for_product);
        } else {
            $carriers_for_product = Cache::retrieve($cache_id);
        }

        $carrier_list = array();
        if (!empty($carriers_for_product)) {
            //the product is linked with carriers
            foreach ($carriers_for_product as $carrier) { //check if the linked carriers are available in current zone
                if (Carrier::checkCarrierZone($carrier['id_carrier'], $id_zone)) {
                    $carrier_list[$carrier['id_carrier']] = $carrier['id_carrier'];
                }
            }
            if (empty($carrier_list)) {
                return array();
            }//no linked carrier are available for this zone
        }

        // The product is not dirrectly linked with a carrier
        // Get all the carriers linked to a warehouse
        if ($id_warehouse) {
            $warehouse = new Warehouse($id_warehouse);
            $warehouse_carrier_list = $warehouse->getCarriers();
        }

        $available_carrier_list = array();
        $cache_id = 'Carrier::getAvailableCarrierList_getCarriersForOrder_' . (int) $id_zone . '-' . (int) $cart->id;
        if (!Cache::isStored($cache_id)) {
            $customer = new Customer($cart->id_customer);
            $carrier_error = array();
            $carriers = Carrier::getCarriersForOrder($id_zone, $customer->getGroups(), $cart, $carrier_error);
            Cache::store($cache_id, array($carriers, $carrier_error));
        } else {
            list($carriers, $carrier_error) = Cache::retrieve($cache_id);
        }

        $error = array_merge($error, $carrier_error);

        foreach ($carriers as $carrier) {
            $available_carrier_list[$carrier['id_carrier']] = $carrier['id_carrier'];
        }

        if ($carrier_list) {
            $carrier_list = array_intersect($available_carrier_list, $carrier_list);
        } else {
            $carrier_list = $available_carrier_list;
        }

        if (isset($warehouse_carrier_list)) {
            $carrier_list = array_intersect($carrier_list, $warehouse_carrier_list);
        }

        $cart_quantity = 0;
        $cart_weight = 0;

        foreach ($cart->getProducts(false, false) as $cart_product) {
            if ($cart_product['id_product'] == $product->id) {
                $cart_quantity += $cart_product['cart_quantity'];
            }
            if (isset($cart_product['weight_attribute']) && $cart_product['weight_attribute'] > 0) {
                $cart_weight += ($cart_product['weight_attribute'] * $cart_product['cart_quantity']);
            } else {
                $cart_weight += ($cart_product['weight'] * $cart_product['cart_quantity']);
            }

            // ADDED BY PSHOWIMPORTER for combination dimensions
            if (!PShow_Settings::getInstance(_PS_MODULE_DIR_ . 'pshowimporter/pshowimporter.php')->get('mod_combination_dimensions')) {
                continue;
            }

            if ($product->reference == $cart_product['reference']) {
                continue;
            }

            $combination = new Combination((int) $cart_product['id_product_attribute']);
            if ($combination->width > 0) {
                $product->width = $combination->width;
            }
            if ($combination->height > 0) {
                $product->height = $combination->height;
            }
            if ($combination->depth > 0) {
                $product->depth = $combination->depth;
            }
            // / ADDED BY PSHOWIMPORTER for combination dimensions
        }

        if ($product->width > 0 || $product->height > 0 || $product->depth > 0 || $product->weight > 0 || $cart_weight > 0) {
            foreach ($carrier_list as $key => $id_carrier) {
                $carrier = new Carrier($id_carrier);

                // Get the sizes of the carrier and the product and sort them to check if the carrier can take the product.
                $carrier_sizes = array((int) $carrier->max_width, (int) $carrier->max_height, (int) $carrier->max_depth);
                $product_sizes = array((int) $product->width, (int) $product->height, (int) $product->depth);
                rsort($carrier_sizes, SORT_NUMERIC);
                rsort($product_sizes, SORT_NUMERIC);

                if (($carrier_sizes[0] > 0 && $carrier_sizes[0] < $product_sizes[0]) || ($carrier_sizes[1] > 0 && $carrier_sizes[1] < $product_sizes[1]) || ($carrier_sizes[2] > 0 && $carrier_sizes[2] < $product_sizes[2])) {
                    $error[$carrier->id] = Carrier::SHIPPING_SIZE_EXCEPTION;
                    unset($carrier_list[$key]);
                }

                if ($carrier->max_weight > 0 && ($carrier->max_weight < $product->weight * $cart_quantity || $carrier->max_weight < $cart_weight)) {
                    $error[$carrier->id] = Carrier::SHIPPING_WEIGHT_EXCEPTION;
                    unset($carrier_list[$key]);
                }
            }
        }
        return $carrier_list;
    }
}