<?php
/**
 *
 * KlarnaCheckout payment plugin
 *
 * @author Valérie Isaksen
 * @version $Id:$
 * @package VirtueMart
 * @subpackage payment
 * Copyright (C) 2004 - 2018 Virtuemart Team. All rights reserved.
 * @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
 * VirtueMart is free software. This version may have been modified pursuant
 * to the GNU General Public License, and as distributed it includes or
 * is derivative of works licensed under the GNU General Public License or
 * other free or open source software licenses.
 * See /administrator/components/com_virtuemart/COPYRIGHT.php for copyright notices and details.
 *
 * http://virtuemart.net
 */


defined('_JEXEC') or die('Restricted access');

class KlarnaCheckoutHelperKCO_rest_php extends KlarnaCheckoutHelperKlarnaCheckout {
	var $_currentMethod;

	function __construct($method,$country_code_3, $currency_code_3) {
		parent::__construct($method,$country_code_3, $currency_code_3) ;
		/*
		require_once( JPATH_ROOT . DS . 'plugins' . DS . 'vmpayment' . DS . 'klarnacheckout'.DS.'kco_rest_php/Klarna'.DS.'Rest'.DS.'Resource.php');
		require_once( JPATH_ROOT . DS . 'plugins' . DS . 'vmpayment' . DS . 'klarnacheckout'.DS.'kco_rest_php/Klarna'.DS.'Rest'.DS.'Checkout'.DS.'Order.php');
		require_once( JPATH_ROOT . DS . 'plugins' . DS . 'vmpayment' . DS . 'klarnacheckout'.DS.'kco_rest_php/Klarna'.DS.'Rest'.DS.'OrderManagement'.DS.'Capture.php');
		require_once( JPATH_ROOT . DS . 'plugins' . DS . 'vmpayment' . DS . 'klarnacheckout'.DS.'kco_rest_php/Klarna'.DS.'Rest'.DS.'OrderManagement'.DS.'Capture.php');
		require_once( JPATH_ROOT . DS . 'plugins' . DS . 'vmpayment' . DS . 'klarnacheckout'.DS.'kco_rest_php/Klarna'.DS.'Rest'.DS.'Transport'.DS.'ConnectorInterface.php');
		require_once( JPATH_ROOT . DS . 'plugins' . DS . 'vmpayment' . DS . 'klarnacheckout'.DS.'kco_rest_php/Klarna'.DS.'Rest'.DS.'Transport'.DS.'Connector.php');
		require_once( JPATH_ROOT . DS . 'plugins' . DS . 'vmpayment' . DS . 'klarnacheckout'.DS.'kco_rest_php/Klarna'.DS.'Rest'.DS.'Transport'.DS.'ResponseValidator.php');
		require_once( JPATH_ROOT . DS . 'plugins' . DS . 'vmpayment' . DS . 'klarnacheckout'.DS.'kco_rest_php/Klarna'.DS.'Rest'.DS.'Transport'.DS.'UserAgentInterface.php');
		require_once( JPATH_ROOT . DS . 'plugins' . DS . 'vmpayment' . DS . 'klarnacheckout'.DS.'kco_rest_php/Klarna'.DS.'Rest'.DS.'Transport'.DS.'UserAgent.php');
*/
		require_once dirname(__file__) . '/../kco_rest_php/vendor/autoload.php';

	}

	function getSnippet($klarna_checkout_order) {
		return $klarna_checkout_order['html_snippet'];
	}

	function getKlarnaUrl() {

		if ($this->_currentMethod->server == 'beta') {
			if ($this->_currentMethod->zone == 'EU') {
				return \Klarna\Rest\Transport\ConnectorInterface::EU_TEST_BASE_URL;
			} else {
				return \Klarna\Rest\Transport\ConnectorInterface::NA_TEST_BASE_URL;
			}
		} else {
			if ($this->_currentMethod->zone == 'EU') {
				return \Klarna\Rest\Transport\ConnectorInterface::EU_BASE_URL;
			} else {
				return \Klarna\Rest\Transport\ConnectorInterface::NA_BASE_URL;
			}
		}
	}

	function getKlarnaConnector() {
		return \Klarna\Rest\Transport\Connector::create(
			$this->_currentMethod->merchantid,
			$this->_currentMethod->sharedsecret,
			$this->getKlarnaUrl()
		);

	}

	function checkoutOrder($klarna_checkout_connector, $klarna_checkout_id) {
		return new Klarna\Rest\Checkout\Order($klarna_checkout_connector, $klarna_checkout_id);
	}


	function getMerchantData(&$klarnaOrderData, $cart) {
		$merchantUrls ['terms'] = $this->getTermsURI($cart->vendorId);
		$merchantUrls ['checkout'] = JURI::root() . 'index.php?option=com_virtuemart&view=cart' . '&Itemid=' . JRequest::getInt('Itemid');
		$merchantUrls['confirmation'] = JURI::root() . 'index.php?option=com_virtuemart&view=vmplg&task=pluginresponsereceived&pm=' . $this->_currentMethod->virtuemart_paymentmethod_id . '&Itemid=' . JRequest::getInt('Itemid') . '&klarna_order={checkout.order.id}';
		// You can not receive push notification on non publicly available uri
		$merchantUrls['push'] = JURI::root() . 'index.php?option=com_virtuemart&view=vmplg&task=pluginnotification&tmpl=component&nt=kco-push-uri&pm=' . $this->_currentMethod->virtuemart_paymentmethod_id . '&klarna_order={checkout.order.id}';
		// attention if used must be https
		//$create['merchant']['validation_uri'] = JURI::root() .  'index.php?option=com_virtuemart&view=vmplg&task=pluginnotification&tmpl=component&nt=kco-validation&pm=' . $virtuemart_paymentmethod_id . '&klarna_order={checkout.order.uri}';
		$klarnaOrderData['merchant_urls'] = $merchantUrls;
	}

	function getCartItems($cart, &$klarnaOrderData) {
		//vmdebug('getProductItems', $cart->pricesUnformatted);
		//self::includeKlarnaFiles();
		$i = 0;
		if (!class_exists('CurrencyDisplay'))
			require(VMPATH_ADMIN . DS . 'helpers' . DS . 'currencydisplay.php');

		foreach ($cart->products as $pkey => $product) {
// Possible values: physical (default) , discount, shipping_fee
			$items[$i]['type'] = 'physical';
			$items[$i]['reference'] = !empty($product->sku) ? $product->sku : $product->virtuemart_product_id; //Article number, SKU or similar.
			$items[$i]['name'] = substr(strip_tags($product->product_name), 0, 127);
			$items[$i]['quantity'] = (int)$product->quantity;
			if (!empty($product->product_unit)) {
				// quantity_unit: Max 10 characters. Unit used to describe the quantity, e.g. kg, pcs.
				$items[$i]['quantity_unit'] = $product->product_unit;
			}

			$price = !empty($product->prices['basePriceWithTax']) ? $product->prices['basePriceWithTax'] : $product->prices['basePriceVariant'];

			$itemInPaymentCurrency = vmPSPlugin::getAmountInCurrency($price, $this->_currentMethod->payment_currency);
			$items[$i]['unit_price'] = round($itemInPaymentCurrency['value'] * 100, 0); // Minor units. Includes tax, excludes discount.

			$tax_rate = round($this->getVatTaxProduct($cart->cartPrices[$pkey]['VatTax']));
			$items[$i]['tax_rate'] = $tax_rate * 100; // Non-negative. In percent, two implicit decimals. I.e 2500 = 25%.

			// ADD A DISCOUNT AS A NEGATIVE VALUE FOR THAT PRODUCT
			if ($cart->cartPrices[$pkey]['discountAmount'] != 0.0) {
				$discount_tax_percent = 0.0;
				$discountInPaymentCurrency = vmPSPlugin::getAmountInCurrency(abs($cart->cartPrices[$pkey]['discountAmount']), $this->_currentMethod->payment_currency);
				$discountAmount = -abs(round($discountInPaymentCurrency['value'] * 100, 0));
				$items[$i]['discount_rate'] = round($discountAmount * (1 + ($tax_rate * 0.01)), 0);
			}
			// total_discount_amount	integer	O	Non-negative minor units. Includes tax.
			$items[$i]['total_discount_amount'] = 0;

			//total_tax_amount Must be within ±1 of total_amount - total_amount * 10000 / (10000 + tax_rate). Negative when type is discount.
			$totalTaxInPaymentCurrency = vmPSPlugin::getAmountInCurrency($product->prices['taxAmount'] * $product->quantity, $this->_currentMethod->payment_currency);
			$items[$i]['total_tax_amount'] = round($totalTaxInPaymentCurrency['value'] * 100, 0);

			// total_amount: Includes tax and discount. Must match (quantity * unit_price) - total_discount_amount within ±quantity.
			$totalAmountInPaymentCurrency = vmPSPlugin::getAmountInCurrency($product->prices['salesPrice'] * $product->quantity, $this->_currentMethod->payment_currency);
			$items[$i]['total_amount'] = round($totalAmountInPaymentCurrency['value'] * 100, 0);
			$i++;

		}
		$i--;
		if ($cart->cartPrices['salesPriceCoupon']) {
			$i++;
			$items[$i]['type'] = 'physical';
			$items[$i]['reference'] = 'COUPON';
			$items[$i]['name'] = 'Coupon discount';// TODO GET coupon NAME
			$items[$i]['quantity'] = 1;
			$couponInPaymentCurrency = vmPSPlugin::getAmountInCurrency($cart->cartPrices['salesPriceCoupon'], $this->_currentMethod->payment_currency);
			$items[$i]['unit_price'] = round($couponInPaymentCurrency['value'] * 100, 0);
			$items[$i]['tax_rate'] = 0;
			//$this->debugLog($cart->cartPrices['salesPriceCoupon'], 'getCartItems Coupon', 'debug');
			//$this->debugLog($items[$i], 'getCartItems', 'debug');
			$i++;
		}
		if ($cart->cartPrices['salesPriceShipment']) {
			$i++;
			$items[$i]['type'] = 'shipping_fee';
			$items[$i]['reference'] = 'SHIPPING';

			$items[$i]['name'] = substr(strip_tags($cart->cartData['shipmentName']), 0, 127);
			$items[$i]['quantity'] = 1;
			$shipmentInPaymentCurrency = vmPSPlugin::getAmountInCurrency($cart->cartPrices['salesPriceShipment'], $this->_currentMethod->payment_currency);
			$items[$i]['unit_price'] = round($shipmentInPaymentCurrency['value'] * 100, 0);
			$items[$i]['tax_rate'] = $this->getTaxShipment($cart);

			$shipmentTaxInPaymentCurrency = vmPSPlugin::getAmountInCurrency($cart->cartPrices['shipmentTax'], $this->_currentMethod->payment_currency);
			$items[$i]['total_tax_amount'] = round($shipmentTaxInPaymentCurrency['value'] * 100, 0);
			$items[$i]['total_amount'] = $items[$i]['unit_price'];

			//$this->debugLog($cart->cartPrices['salesPriceShipment'], 'getCartItems Shipment', 'debug');
			//$this->debugLog($items[$i], 'getCartItems', 'debug');
		}

		$klarnaOrderData['order_lines'] = $items;

		$orderAmountInPaymentCurrency = vmPSPlugin::getAmountInCurrency($cart->cartPrices['billTotal'], $this->_currentMethod->payment_currency);
		$klarnaOrderData['order_amount'] = round($orderAmountInPaymentCurrency['value'] * 100, 0);

		$orderTaxAmountInPaymentCurrency = vmPSPlugin::getAmountInCurrency($cart->cartPrices['billTaxAmount'], $this->_currentMethod->payment_currency);
		$klarnaOrderData['order_tax_amount'] = round($orderTaxAmountInPaymentCurrency['value'] * 100, 0);

		$currency = CurrencyDisplay::getInstance($cart->paymentCurrency);
		return;

	}

	function getCheckoutOrderId($klarna_checkout_order) {
		return $klarna_checkout_order->getId();
	}

	/**
	 * @param $klarna_checkout_connector
	 * @param $klarna_checkout_id
	 * @return \Klarna\Rest\OrderManagement\Order
	 */

	function checkoutOrderManagement($klarna_checkout_connector, $klarna_checkout_id) {
		return new Klarna\Rest\OrderManagement\Order($klarna_checkout_connector, $klarna_checkout_id);
	}

	/**
	 * You must now send a request to Klarna saying that you've acknowledged the order.
	 *
	 * Note: Klarna will send the push notifications every two hours for a total of 48 hours or until you confirm that you have received the order.
	 * @param $klarna_checkout_order
	 */
	function acknowledge($klarna_checkout_ordermanagement) {
		try {
			$klarna_checkout_ordermanagement->acknowledge();
		} catch (Exception $e) {
			return $e->getMessage();
		}
		$data = json_decode(json_encode($klarna_checkout_ordermanagement));
		return true;

	}

	function isKlarnaOrderStatusSuccess($klarna_checkout_order) {
		return ($klarna_checkout_order['status'] == 'checkout_complete');
	}

	function getStoreInternalData($klarna_data, &$dbValues, $action = NULL, $message) {
		$dbValues['data'] = json_encode($klarna_data);
		$dbValues['payment_order_total'] = $klarna_data['order_amount'];
		$dbValues['payment_currency'] = ShopFunctions::getCurrencyIDByName($klarna_data['purchase_currency']);;
		$dbValues['action'] = $action;

		$dbValues['klarna_id'] = $klarna_data['order_id'];
		$dbValues['klarna_status'] = $klarna_data['status'];
		$dbValues['klarna_fraud_status'] = $klarna_data['fraud_status'];
		//$dbValues['klarna_reservation'] = $klarna_checkout_order['reservation'];
		$dbValues['klarna_reference'] = isset($klarna_data['klarna_reference']) ? $klarna_data['klarna_reference'] : '';
		$dbValues['klarna_started_at'] = isset($klarna_data['started_at']) ? $klarna_data['started_at'] : '';
		$dbValues['klarna_completed_at'] = isset($klarna_data['completed_at']) ? $klarna_data['completed_at'] : '';
		$dbValues['klarna_expires_at'] = isset($klarna_data['expires_at']) ? $klarna_data['expires_at'] : '';
		$dbValues['format'] = 'json';

		$data = json_decode($dbValues['data']);
	}

	function onShowOrderBE_checkoutOrder($payment) {


	}

	/**
	 * Order management

	 */
	public function getUpdateOrderPaymentAction($new_order_status, $old_order_status, $payments) {

		$lastPayment = $payments[(count($payments)) - 1];
		$klarna_status = $lastPayment->klarna_status;
		$actions = array('activate', 'cancelReservation', 'changeReservation', 'creditInvoice', 'Refund');
		$klarnaCheckoutData=NULL;
		foreach ($actions as $action) {
			$status = 'status_' . $action;
			if ($this->_currentMethod->$status == $new_order_status ) {
				return $action;
				break;
			}
		}

		return FALSE;
	}

	/**
	 * Use case
	 * A consumer makes a purchase, you send the goods to the consumer without any changes made to the order.
	 *
	 * API calls
	 * Capture the full amount
	 * Add new shipping information to a capture
	 * Release remaining authorization for an order
	 * @param $order
	 * @param $method
	 * @param $payments
	 * @return bool
	 */
	function activate($order, $payments) {

		$klarna_checkout_connector = $this->getKlarnaConnector();
		$klarna_checkout_id = $this->getKlarnaCheckoutId($payments);
		$klarna_checkout_ordermanagement = $this->checkoutOrderManagement($klarna_checkout_connector, $klarna_checkout_id);
		$klarna_checkout_ordermanagement->fetch();
		$captureData = array(
			"captured_amount" => $klarna_checkout_ordermanagement['order_amount'],
			"description" => "Shipped part of the order",
			"order_lines" => $klarna_checkout_ordermanagement['order_lines'],
			"shipping_info" => NULL
		);
		try {
			$klarna_checkout_ordermanagement->createCapture($captureData);

		} catch (Exception $e) {
			vmError($e->getMessage());
			return NULL;
		}

		return $klarna_checkout_ordermanagement;
	}

	/**
	 * Cancel an authorized order
	 * Cancel an authorized order. For a cancellation to be successful, there must be no captures on the order.
	 * The authorized amount will be released and no further updates to the order will be allowed.
	 */
	function cancelReservation($order, $payments) {
		$klarna_checkout_connector = $this->getKlarnaConnector();
		$klarna_checkout_id = $this->getKlarnaCheckoutId($payments);
		$klarna_checkout_ordermanagement = $this->checkoutOrderManagement($klarna_checkout_connector, $klarna_checkout_id);
		try {
			$klarna_checkout_ordermanagement->cancel();
		} catch (Exception $e) {
			vmError($e->getMessage());
			return NULL;
		}
	}

	/**
	 * Refund an amount of a captured order
	 * Refund an amount of a captured order. The refunded amount will be credited to the customer.
	 *
	 * The refunded amount must not be higher than 'captured_amount'.
	 * The refunded amount can optionally be accompanied by a descriptive text and order lines.
	 */
	function refund($order, $payments) {
		$klarna_checkout_connector = $this->getKlarnaConnector();
		$klarna_checkout_id = $this->getKlarnaCheckoutId($payments);
		$klarna_checkout_ordermanagement = $this->checkoutOrderManagement($klarna_checkout_connector, $klarna_checkout_id);
		$klarna_checkout_ordermanagement->fetch();
		$refundData = array(
			"captured_amount" => $klarna_checkout_ordermanagement['order_amount'],
			"description" => "Shipped part of the order",
			"order_lines" => $klarna_checkout_ordermanagement['order_lines'],
			"shipping_info" => NULL
		);
		try {
			$klarna_checkout_ordermanagement->refund($refundData);

		} catch (Exception $e) {
			vmError($e->getMessage());
			return NULL;
		}

		return $klarna_checkout_ordermanagement;
	}


	function    getKlarnaCheckoutId($payments) {
		return $payments[0]->klarna_id;
	}


}
