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<?php
/* --------------------------------------------------------------
   OrderRepositoryReader.inc.php 2017-10-27
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2017 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   --------------------------------------------------------------
*/

MainFactory::load_class('OrderRepositoryReaderInterface');

/**
 * Class OrderRepositoryReader
 *
 * @category   System
 * @package    Order
 * @subpackage Repositories
 */
class OrderRepositoryReader implements OrderRepositoryReaderInterface
{
    /**
     * Query builder.
     * @var CI_DB_query_builder
     */
    protected $db;
    
    /**
     * Order factory.
     * @var OrderFactory
     */
    protected $orderFactory;
    
    /**
     * Country service.
     * @var CountryServiceInterface
     */
    protected $countryService;
    
    /**
     * @var \PaymentTitleProvider
     */
    protected $paymentTitleProvider;
    
    
    /**
     * OrderRepositoryReader constructor.
     *
     * @param CI_DB_query_builder     $db                   Query builder.
     * @param OrderFactoryInterface   $orderFactory         Order factory.
     * @param CountryServiceInterface $countryService       Country service.
     * @param \PaymentTitleProvider   $paymentTitleProvider Payment title provider.
     */
    public function __construct(CI_DB_query_builder $db,
                                OrderFactoryInterface $orderFactory,
                                CountryServiceInterface $countryService,
                                PaymentTitleProvider $paymentTitleProvider)
    {
        $this->db                   = $db;
        $this->orderFactory         = $orderFactory;
        $this->countryService       = $countryService;
        $this->paymentTitleProvider = $paymentTitleProvider;
    }
    
    
    /**
     * Fetches an new order object from the orders table by the given ID.
     *
     * @param IdType $orderId ID of the expected order.
     *
     * @return GXEngineOrder Fetched order.
     * @throws UnexpectedValueException If no entry has been found.
     */
    public function getById(IdType $orderId)
    {
        $this->db->select('orders.*, languages.code AS language_code')
                 ->from('orders')
                 ->join('languages', 'languages.directory = orders.language', 'inner')
                 ->where('orders_id', $orderId->asInt());
        
        $data = $this->db->get()->row_array();
        
        if($data === null)
        {
            throw new UnexpectedValueException('The requested Order was not found in database (ID:' . $orderId->asInt()
                                               . ')');
        }
        
        $order = $this->_createOrderByArray($data);
        
        return $order;
    }
    
    
    /**
     * Creates an order instance.
     *
     * @param array $data Order data.
     *
     * @return GXEngineOrder Created order object.
     */
    protected function _createOrderByArray(array $data)
    {
        $order = $this->orderFactory->createOrder();
        
        // Set IDs
        $order->setOrderId(new IdType($data['orders_id']));
        $order->setCustomerId(new IdType($data['customers_id']));
        $order->setStatusId(new IdType($data['orders_status']));
        
        // Customer Status Information
        $isGuest                   = ((int)$data['account_type'] === 1 || (int)$data['customers_status'] === 1);
        $customerStatusInformation = MainFactory::create('CustomerStatusInformation',
                                                         new IdType((int)$data['customers_status']),
                                                         new StringType((string)$data['customers_status_name']),
                                                         new StringType((string)$data['customers_status_image']),
                                                         new DecimalType((double)$data['customers_status_discount']),
                                                         new BoolType($isGuest));
        $order->setCustomerStatusInformation($customerStatusInformation);
        
        // Address Information
        $customerAddress = $this->_getOrderAddressBlock($data, new StringType('customers'));
        $order->setCustomerAddress($customerAddress);
        $billingAddress = $this->_getOrderAddressBlock($data, new StringType('billing'));
        $order->setBillingAddress($billingAddress);
        $deliveryAddress = $this->_getOrderAddressBlock($data, new StringType('delivery'));
        $order->setDeliveryAddress($deliveryAddress);
        
        // Payment Type
        $paymentType = $this->_createOrderPaymentType($data);
        $order->setPaymentType($paymentType);
        
        // Shipping Type
        $shippingType = MainFactory::create('OrderShippingType', new StringType($data['shipping_method']),
                                            new StringType($data['shipping_class']));
        $order->setShippingType($shippingType);
        
        // Miscellaneous Values
        $order->setCustomerNumber(new StringType((string)$data['customers_cid']));
        $order->setCustomerEmail(new EmailStringType($data['customers_email_address']));
        $order->setCustomerTelephone(new StringType($data['customers_telephone']));
        $order->setVatIdNumber(new StringType((string)$data['customers_vat_id']));
        $order->setTotalWeight(new DecimalType((double)$data['order_total_weight']));
        $order->setCurrencyCode(MainFactory::create('CurrencyCode', new NonEmptyStringType((string)$data['currency']),
                                                    new DecimalType((double)$data['currency_value'])));
        $order->setLanguageCode(new LanguageCode(new NonEmptyStringType($data['language_code'])));
        $order->setPurchaseDateTime(new EmptyDateTime((string)$data['date_purchased']));
        $order->setLastModifiedDateTime(new EmptyDateTime((string)$data['last_modified']));
        $order->setComment(new StringType((string)$data['comments']));
        
        if(!empty($data['orders_hash']))
        {
            $order->setOrderHash(new NonEmptyStringType($data['orders_hash']));
        }
        
        return $order;
    }
    
    
    /**
     * Returns order address block instance for the customer, billing and delivery address.
     *
     * @param array      $data   Contains the order data that came directly from the database.
     * @param StringType $prefix Must be one of "customers", "billing" and "delivery" (look at the "orders" db table).
     *
     * @return AddressBlock Instance of an address block that contains the address values.
     */
    protected function _getOrderAddressBlock(array $data, StringType $prefix)
    {
        $addressPrefix = $prefix->asString() . '_';
        
        $country = $this->countryService->findCountryByName($data[$addressPrefix . 'country']);
        $zone    = $this->countryService->getUnknownCountryZoneByName((string)$data[$addressPrefix . 'state']);
        
        if($this->countryService->countryHasCountryZones($country)
           && $this->countryService->countryZoneExistsInCountry($zone, $country))
        {
            $zone = $this->countryService->getCountryZoneByNameAndCountry((string)$data[$addressPrefix . 'state'],
                                                                          $country);
        }
        
        return MainFactory::create('AddressBlock', new CustomerGender($data[$addressPrefix . 'gender']),
                                   new CustomerFirstname($data[$addressPrefix . 'firstname']),
                                   new CustomerLastname($data[$addressPrefix . 'lastname']),
                                   new CustomerCompany((string)$data[$addressPrefix . 'company']),
                                   new CustomerB2BStatus(false),
                                   new CustomerStreet($data[$addressPrefix . 'street_address']),
                                   new CustomerHouseNumber($data[$addressPrefix . 'house_number']),
                                   new CustomerAdditionalAddressInfo($data[$addressPrefix . 'additional_info']),
                                   new CustomerSuburb((string)$data[$addressPrefix . 'suburb']),
                                   new CustomerPostcode($data[$addressPrefix . 'postcode']),
                                   new CustomerCity($data[$addressPrefix . 'city']), $country, $zone);
    }
    
    
    /**
     * Creates and returns an order payment type instance by the given row data.
     *
     * @param array $row Row array with data about the order type.
     *
     * @return OrderPaymentType
     *
     * @throws InvalidArgumentException
     */
    protected function _createOrderPaymentType(array $row)
    {
        $paymentMethodKey = 'payment_method';
        $paymentClassKey  = 'payment_class';
        
        $explodedMethodName = explode('_', $row[$paymentMethodKey]);
        
        $method = (count($explodedMethodName) === 2
                   && $explodedMethodName[0]
                      === $explodedMethodName[1]) ? $explodedMethodName[0] : $row[$paymentMethodKey];
        
        $title = $method ? $this->paymentTitleProvider->title($method) : '';
        
        $explodedClassName = explode('_', $row[$paymentClassKey]);
        
        $class = (count($explodedClassName) === 2
                  && $explodedClassName[0] === $explodedClassName[1]) ? $explodedClassName[0] : $row[$paymentClassKey];
        
        $configurationValue = $this->db->get_where('configuration', [
            'configuration_key' => 'MODULE_PAYMENT_' . strtoupper($class) . '_ALIAS'
        ])->row()->configuration_value;
        
        $alias = $configurationValue ? new StringType($configurationValue) : null;
        
        return MainFactory::create('OrderPaymentType', new StringType($title),
                                   new StringType((string)$row[$paymentClassKey]), $alias);
    }
}