const express = require('express'); const common = require('../../lib/common'); const { indexOrders } = require('../../lib/indexing'); const paypal = require('paypal-rest-sdk'); const router = express.Router(); router.get('/checkout_cancel', (req, res, next) => { // return to checkout for adjustment or repayment res.redirect('/checkout'); }); router.get('/checkout_return', (req, res, next) => { const db = req.app.db; const config = req.app.config; const paymentId = req.session.paymentId; const payerId = req.query.PayerID; const details = { payer_id: payerId }; paypal.payment.execute(paymentId, details, (error, payment) => { let paymentApproved = false; let paymentMessage = ''; let paymentDetails = ''; if(error){ paymentApproved = false; if(error.response.name === 'PAYMENT_ALREADY_DONE'){ paymentApproved = false; paymentMessage = error.response.message; }else{ paymentApproved = false; paymentDetails = error.response.error_description; } // set the error req.session.messageType = 'danger'; req.session.message = error.response.error_description; req.session.paymentApproved = paymentApproved; req.session.paymentDetails = paymentDetails; res.redirect('/payment/' + req.session.orderId); return; } const paymentOrderId = req.session.orderId; let paymentStatus = 'Approved'; // fully approved if(payment.state === 'approved'){ paymentApproved = true; paymentStatus = 'Paid'; paymentMessage = 'Your payment was successfully completed'; paymentDetails = '

Order ID: ' + paymentOrderId + '

Transaction ID: ' + payment.id + '

'; // clear the cart if(req.session.cart){ common.emptyCart(req, res, 'function'); } } // failed if(payment.failureReason){ paymentApproved = false; paymentMessage = 'Your payment failed - ' + payment.failureReason; paymentStatus = 'Declined'; } // update the order status db.orders.updateOne({ _id: common.getId(paymentOrderId) }, { $set: { orderStatus: paymentStatus } }, { multi: false }, (err, numReplaced) => { if(err){ console.info(err.stack); } db.orders.findOne({ _id: common.getId(paymentOrderId) }, (err, order) => { if(err){ console.info(err.stack); } // add to lunr index indexOrders(req.app) .then(() => { // set the results req.session.messageType = 'success'; req.session.message = paymentMessage; req.session.paymentEmailAddr = order.orderEmail; req.session.paymentApproved = paymentApproved; req.session.paymentDetails = paymentDetails; const paymentResults = { message: req.session.message, messageType: req.session.messageType, paymentEmailAddr: req.session.paymentEmailAddr, paymentApproved: req.session.paymentApproved, paymentDetails: req.session.paymentDetails }; // send the email with the response // TODO: Should fix this to properly handle result common.sendEmail(req.session.paymentEmailAddr, 'Your payment with ' + config.cartTitle, common.getEmailTemplate(paymentResults)); res.redirect('/payment/' + order._id); }); }); }); }); }); // The homepage of the site router.post('/checkout_action', (req, res, next) => { const db = req.app.db; const config = req.app.config; const paypalConfig = common.getPaymentConfig(); // setup the payment object const payment = { intent: 'sale', payer: { payment_method: 'paypal' }, redirect_urls: { return_url: config.baseUrl + '/paypal/checkout_return', cancel_url: config.baseUrl + '/paypal/checkout_cancel' }, transactions: [{ amount: { total: req.session.totalCartAmount, currency: paypalConfig.paypalCurrency }, description: paypalConfig.paypalCartDescription }] }; // set the config paypal.configure(paypalConfig); // create payment paypal.payment.create(payment, (error, payment) => { if(error){ req.session.message = 'There was an error processing your payment. You have not been changed and can try again.'; req.session.messageType = 'danger'; res.redirect('/checkout/payment'); return; } if(payment.payer.payment_method === 'paypal'){ req.session.paymentId = payment.id; let redirectUrl; for(let i = 0; i < payment.links.length; i++){ const link = payment.links[i]; if(link.method === 'REDIRECT'){ redirectUrl = link.href; } } // if there is no items in the cart then render a failure if(!req.session.cart){ req.session.message = 'The are no items in your cart. Please add some items before checking out'; req.session.messageType = 'danger'; res.redirect('/'); return; } // new order doc const orderDoc = { orderPaymentId: payment.id, orderPaymentGateway: 'Paypal', orderTotal: req.session.totalCartAmount, orderItemCount: req.session.totalCartItems, orderProductCount: req.session.totalCartProducts, orderEmail: req.session.customerEmail, orderFirstname: req.session.customerFirstname, orderLastname: req.session.customerLastname, orderAddr1: req.session.customerAddress1, orderAddr2: req.session.customerAddress2, orderCountry: req.session.customerCountry, orderState: req.session.customerState, orderPostcode: req.session.customerPostcode, orderPhoneNumber: req.session.customerPhone, orderComment: req.session.orderComment, orderStatus: payment.state, orderDate: new Date(), orderProducts: req.session.cart, orderType: 'Single' }; if(req.session.orderId){ // we have an order ID (probably from a failed/cancelled payment previosuly) so lets use that. // send the order to Paypal res.redirect(redirectUrl); }else{ // no order ID so we create a new one db.orders.insertOne(orderDoc, (err, newDoc) => { if(err){ console.info(err.stack); } // get the new ID const newId = newDoc.insertedId; // set the order ID in the session req.session.orderId = newId; // send the order to Paypal res.redirect(redirectUrl); }); } } }); }); module.exports = router;