expressCart/routes/index.js

662 lines
22 KiB
JavaScript

const express = require('express');
const router = express.Router();
const colors = require('colors');
const async = require('async');
const _ = require('lodash');
const {
getId,
hooker,
showCartCloseBtn,
clearSessionValue,
sortMenu,
getMenu,
getPaymentConfig,
getImages,
updateTotalCartAmount,
getData,
addSitemapProducts
} = require('../lib/common');
// These is the customer facing routes
router.get('/payment/:orderId', async (req, res, next) => {
const db = req.app.db;
const config = req.app.config;
// Get the order
const order = await db.orders.findOne({ _id: getId(req.params.orderId) });
if(!order){
res.render('error', { title: 'Not found', message: 'Order not found', helpers: req.handlebars.helpers, config });
return;
}
// If stock management is turned on payment approved update stock level
if(config.trackStock && req.session.paymentApproved){
order.orderProducts.forEach(async (product) => {
const dbProduct = await db.products.findOne({ _id: getId(product.productId) });
let newStockLevel = dbProduct.productStock - product.quantity;
if(newStockLevel < 1){
newStockLevel = 0;
}
// Update product stock
await db.products.updateOne({
_id: getId(product.productId)
}, {
$set: {
productStock: newStockLevel
}
}, { multi: false });
});
}
// If hooks are configured, send hook
if(config.orderHook){
await hooker(order);
};
res.render(`${config.themeViews}payment_complete`, {
title: 'Payment complete',
config: req.app.config,
session: req.session,
pageCloseBtn: showCartCloseBtn('payment'),
result: order,
message: clearSessionValue(req.session, 'message'),
messageType: clearSessionValue(req.session, 'messageType'),
helpers: req.handlebars.helpers,
showFooter: 'showFooter',
menu: sortMenu(await getMenu(db))
});
});
router.get('/checkout', async (req, res, next) => {
const config = req.app.config;
// 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;
}
// render the checkout
res.render(`${config.themeViews}checkout`, {
title: 'Checkout',
config: req.app.config,
session: req.session,
pageCloseBtn: showCartCloseBtn('checkout'),
checkout: 'hidden',
page: 'checkout',
message: clearSessionValue(req.session, 'message'),
messageType: clearSessionValue(req.session, 'messageType'),
helpers: req.handlebars.helpers,
showFooter: 'showFooter'
});
});
router.get('/pay', async (req, res, next) => {
const config = req.app.config;
// if there is no items in the cart then render a failure
if(!req.session.cart){
req.session.message = 'The are no items in your cart. Please add some items before checking out';
req.session.messageType = 'danger';
res.redirect('/checkout');
return;
}
// render the payment page
res.render(`${config.themeViews}pay`, {
title: 'Pay',
config: req.app.config,
paymentConfig: getPaymentConfig(),
pageCloseBtn: showCartCloseBtn('pay'),
session: req.session,
paymentPage: true,
page: 'pay',
message: clearSessionValue(req.session, 'message'),
messageType: clearSessionValue(req.session, 'messageType'),
helpers: req.handlebars.helpers,
showFooter: 'showFooter'
});
});
router.get('/cartPartial', (req, res) => {
const config = req.app.config;
res.render(`${config.themeViews}cart`, {
pageCloseBtn: showCartCloseBtn(req.query.path),
page: req.query.path,
layout: false,
helpers: req.handlebars.helpers,
config: req.app.config,
session: req.session
});
});
// show an individual product
router.get('/product/:id', async (req, res) => {
const db = req.app.db;
const config = req.app.config;
const product = await db.products.findOne({ $or: [{ _id: getId(req.params.id) }, { productPermalink: req.params.id }] });
if(!product){
res.render('error', { title: 'Not found', message: 'Order not found', helpers: req.handlebars.helpers, config });
return;
}
if(product.productPublished === false){
res.render('error', { title: 'Not found', message: 'Product not found', helpers: req.handlebars.helpers, config });
return;
}
const productOptions = product.productOptions;
// If JSON query param return json instead
if(req.query.json === 'true'){
res.status(200).json(product);
return;
}
// show the view
const images = await getImages(product._id, req, res);
res.render(`${config.themeViews}product`, {
title: product.productTitle,
result: product,
productOptions: productOptions,
images: images,
productDescription: product.productDescription,
metaDescription: config.cartTitle + ' - ' + product.productTitle,
pageCloseBtn: showCartCloseBtn('product'),
config: config,
session: req.session,
pageUrl: config.baseUrl + req.originalUrl,
message: clearSessionValue(req.session, 'message'),
messageType: clearSessionValue(req.session, 'messageType'),
helpers: req.handlebars.helpers,
showFooter: 'showFooter',
menu: sortMenu(await getMenu(db))
});
});
// Updates a single product quantity
router.post('/product/updatecart', (req, res, next) => {
const db = req.app.db;
const config = req.app.config;
const cartItems = JSON.parse(req.body.items);
let hasError = false;
let stockError = false;
async.eachSeries(cartItems, async (cartItem, callback) => {
const productQuantity = cartItem.itemQuantity ? cartItem.itemQuantity : 1;
if(cartItem.itemQuantity === 0){
// quantity equals zero so we remove the item
req.session.cart.splice(cartItem.cartIndex, 1);
callback(null);
}else{
const product = await db.products.findOne({ _id: getId(cartItem.productId) });
if(product){
// If stock management on check there is sufficient stock for this product
if(config.trackStock){
if(productQuantity > product.productStock){
hasError = true;
stockError = true;
callback(null);
return;
}
}
const productPrice = parseFloat(product.productPrice).toFixed(2);
if(req.session.cart[cartItem.cartIndex]){
req.session.cart[cartItem.cartIndex].quantity = productQuantity;
req.session.cart[cartItem.cartIndex].totalItemPrice = productPrice * productQuantity;
callback(null);
}
}else{
hasError = true;
callback(null);
}
}
}, async () => {
// update total cart amount
updateTotalCartAmount(req, res);
// Update cart to the DB
await db.cart.updateOne({ sessionId: req.session.id }, {
$set: { cart: req.session.cart }
});
// show response
if(hasError === false){
res.status(200).json({ message: 'Cart successfully updated', totalCartItems: Object.keys(req.session.cart).length });
}else{
if(stockError){
res.status(400).json({ message: 'There is insufficient stock of this product.', totalCartItems: Object.keys(req.session.cart).length });
}else{
res.status(400).json({ message: 'There was an error updating the cart', totalCartItems: Object.keys(req.session.cart).length });
}
}
});
});
// Remove single product from cart
router.post('/product/removefromcart', (req, res, next) => {
const db = req.app.db;
let itemRemoved = false;
// remove item from cart
async.each(req.session.cart, (item, callback) => {
if(item){
if(item.productId === req.body.cartId){
itemRemoved = true;
req.session.cart = _.pull(req.session.cart, item);
}
}
callback();
}, async () => {
// Update cart in DB
await db.cart.updateOne({ sessionId: req.session.id }, {
$set: { cart: req.session.cart }
});
// update total cart amount
updateTotalCartAmount(req, res);
if(itemRemoved === false){
return res.status(400).json({ message: 'Product not found in cart' });
}
return res.status(200).json({ message: 'Product successfully removed', totalCartItems: Object.keys(req.session.cart).length });
});
});
// Totally empty the cart
router.post('/product/emptycart', async (req, res, next) => {
const db = req.app.db;
// Remove from session
delete req.session.cart;
delete req.session.orderId;
// Remove cart from DB
await db.cart.deleteOne({ sessionId: req.session.id });
// update total cart amount
updateTotalCartAmount(req, res);
res.status(200).json({ message: 'Cart successfully emptied', totalCartItems: 0 });
});
// Add item to cart
router.post('/product/addtocart', async (req, res, next) => {
const db = req.app.db;
const config = req.app.config;
let productQuantity = req.body.productQuantity ? parseInt(req.body.productQuantity) : 1;
const productComment = req.body.productComment ? req.body.productComment : null;
// Don't allow negative quantity
if(productQuantity < 0){
productQuantity = 1;
}
// setup cart object if it doesn't exist
if(!req.session.cart){
req.session.cart = [];
}
// Get the item from the DB
const product = await db.products.findOne({ _id: getId(req.body.productId) });
// No product found
if(!product){
return res.status(400).json({ message: 'Error updating cart. Please try again.' });
}
// If stock management on check there is sufficient stock for this product
if(config.trackStock && product.productStock){
const stockHeld = await db.cart.aggregate(
{
$match: {
cart: { $elemMatch: { productId: product._id.toString() } }
}
},
{ $unwind: '$cart' },
{
$group: {
_id: '$cart.productId',
sumHeld: { $sum: '$cart.quantity' }
}
},
{
$project: {
sumHeld: 1
}
}
).toArray();
// If there is stock
if(stockHeld.length > 0){
const totalHeld = _.find(stockHeld, { _id: product._id.toString() }).sumHeld;
const netStock = product.productStock - totalHeld;
// Check there is sufficient stock
if(productQuantity > netStock){
return res.status(400).json({ message: 'There is insufficient stock of this product.' });
}
}
}
const productPrice = parseFloat(product.productPrice).toFixed(2);
// Doc used to test if existing in the cart with the options. If not found, we add new.
let options = {};
if(req.body.productOptions){
options = JSON.parse(req.body.productOptions);
}
const findDoc = {
productId: req.body.productId,
options: options
};
// if exists we add to the existing value
const cartIndex = _.findIndex(req.session.cart, findDoc);
let cartQuantity = 0;
if(cartIndex > -1){
cartQuantity = parseInt(req.session.cart[cartIndex].quantity) + productQuantity;
req.session.cart[cartIndex].quantity = cartQuantity;
req.session.cart[cartIndex].totalItemPrice = productPrice * parseInt(req.session.cart[cartIndex].quantity);
}else{
// Doesnt exist so we add to the cart session
req.session.cartTotalItems = req.session.cartTotalItems + productQuantity;
// Set the card quantity
cartQuantity = productQuantity;
// new product deets
const productObj = {};
productObj.productId = req.body.productId;
productObj.title = product.productTitle;
productObj.quantity = productQuantity;
productObj.totalItemPrice = productPrice * productQuantity;
productObj.options = options;
productObj.productImage = product.productImage;
productObj.productComment = productComment;
if(product.productPermalink){
productObj.link = product.productPermalink;
}else{
productObj.link = product._id;
}
// merge into the current cart
req.session.cart.push(productObj);
}
// Update cart to the DB
await db.cart.updateOne({ sessionId: req.session.id }, {
$set: { cart: req.session.cart }
}, { upsert: true });
// update total cart amount
updateTotalCartAmount(req, res);
// update how many products in the shopping cart
req.session.cartTotalItems = req.session.cart.reduce((a, b) => +a + +b.quantity, 0);
return res.status(200).json({ message: 'Cart successfully updated', totalCartItems: req.session.cartTotalItems });
});
// search products
router.get('/search/:searchTerm/:pageNum?', (req, res) => {
const db = req.app.db;
const searchTerm = req.params.searchTerm;
const productsIndex = req.app.productsIndex;
const config = req.app.config;
const numberProducts = config.productsPerPage ? config.productsPerPage : 6;
const lunrIdArray = [];
productsIndex.search(searchTerm).forEach((id) => {
lunrIdArray.push(getId(id.ref));
});
let pageNum = 1;
if(req.params.pageNum){
pageNum = req.params.pageNum;
}
Promise.all([
getData(req, pageNum, { _id: { $in: lunrIdArray } }),
getMenu(db)
])
.then(([results, menu]) => {
// If JSON query param return json instead
if(req.query.json === 'true'){
res.status(200).json(results.data);
return;
}
res.render(`${config.themeViews}index`, {
title: 'Results',
results: results.data,
filtered: true,
session: req.session,
metaDescription: req.app.config.cartTitle + ' - Search term: ' + searchTerm,
searchTerm: searchTerm,
pageCloseBtn: showCartCloseBtn('search'),
message: clearSessionValue(req.session, 'message'),
messageType: clearSessionValue(req.session, 'messageType'),
productsPerPage: numberProducts,
totalProductCount: results.totalProducts,
pageNum: pageNum,
paginateUrl: 'search',
config: config,
menu: sortMenu(menu),
helpers: req.handlebars.helpers,
showFooter: 'showFooter'
});
})
.catch((err) => {
console.error(colors.red('Error searching for products', err));
});
});
// search products
router.get('/category/:cat/:pageNum?', (req, res) => {
const db = req.app.db;
const searchTerm = req.params.cat;
const productsIndex = req.app.productsIndex;
const config = req.app.config;
const numberProducts = config.productsPerPage ? config.productsPerPage : 6;
const lunrIdArray = [];
productsIndex.search(searchTerm).forEach((id) => {
lunrIdArray.push(getId(id.ref));
});
let pageNum = 1;
if(req.params.pageNum){
pageNum = req.params.pageNum;
}
Promise.all([
getData(req, pageNum, { _id: { $in: lunrIdArray } }),
getMenu(db)
])
.then(([results, menu]) => {
const sortedMenu = sortMenu(menu);
// If JSON query param return json instead
if(req.query.json === 'true'){
res.status(200).json(results.data);
return;
}
res.render(`${config.themeViews}index`, {
title: 'Category',
results: results.data,
filtered: true,
session: req.session,
searchTerm: searchTerm,
metaDescription: req.app.config.cartTitle + ' - Category: ' + searchTerm,
pageCloseBtn: showCartCloseBtn('category'),
message: clearSessionValue(req.session, 'message'),
messageType: clearSessionValue(req.session, 'messageType'),
productsPerPage: numberProducts,
totalProductCount: results.totalProducts,
pageNum: pageNum,
menuLink: _.find(sortedMenu.items, (obj) => { return obj.link === searchTerm; }),
paginateUrl: 'category',
config: config,
menu: sortedMenu,
helpers: req.handlebars.helpers,
showFooter: 'showFooter'
});
})
.catch((err) => {
console.error(colors.red('Error getting products for category', err));
});
});
// return sitemap
router.get('/sitemap.xml', (req, res, next) => {
const sm = require('sitemap');
const config = req.app.config;
addSitemapProducts(req, res, (err, products) => {
if(err){
console.error(colors.red('Error generating sitemap.xml', err));
}
const sitemap = sm.createSitemap(
{
hostname: config.baseUrl,
cacheTime: 600000,
urls: [
{ url: '/', changefreq: 'weekly', priority: 1.0 }
]
});
const currentUrls = sitemap.urls;
const mergedUrls = currentUrls.concat(products);
sitemap.urls = mergedUrls;
// render the sitemap
sitemap.toXML((err, xml) => {
if(err){
return res.status(500).end();
}
res.header('Content-Type', 'application/xml');
res.send(xml);
return true;
});
});
});
router.get('/page/:pageNum', (req, res, next) => {
const db = req.app.db;
const config = req.app.config;
const numberProducts = config.productsPerPage ? config.productsPerPage : 6;
Promise.all([
getData(req, req.params.pageNum),
getMenu(db)
])
.then(([results, menu]) => {
// If JSON query param return json instead
if(req.query.json === 'true'){
res.status(200).json(results.data);
return;
}
res.render(`${config.themeViews}index`, {
title: 'Shop',
results: results.data,
session: req.session,
message: clearSessionValue(req.session, 'message'),
messageType: clearSessionValue(req.session, 'messageType'),
metaDescription: req.app.config.cartTitle + ' - Products page: ' + req.params.pageNum,
pageCloseBtn: showCartCloseBtn('page'),
config: req.app.config,
productsPerPage: numberProducts,
totalProductCount: results.totalProducts,
pageNum: req.params.pageNum,
paginateUrl: 'page',
helpers: req.handlebars.helpers,
showFooter: 'showFooter',
menu: sortMenu(menu)
});
})
.catch((err) => {
console.error(colors.red('Error getting products for page', err));
});
});
// The main entry point of the shop
router.get('/:page?', async (req, res, next) => {
const db = req.app.db;
const config = req.app.config;
const numberProducts = config.productsPerPage ? config.productsPerPage : 6;
// if no page is specified, just render page 1 of the cart
if(!req.params.page){
Promise.all([
getData(req, 1, {}),
getMenu(db)
])
.then(([results, menu]) => {
// If JSON query param return json instead
if(req.query.json === 'true'){
res.status(200).json(results.data);
return;
}
res.render(`${config.themeViews}index`, {
title: `${config.cartTitle} - Shop`,
theme: config.theme,
results: results.data,
session: req.session,
message: clearSessionValue(req.session, 'message'),
messageType: clearSessionValue(req.session, 'messageType'),
pageCloseBtn: showCartCloseBtn('page'),
config: req.app.config,
productsPerPage: numberProducts,
totalProductCount: results.totalProducts,
pageNum: 1,
paginateUrl: 'page',
helpers: req.handlebars.helpers,
showFooter: 'showFooter',
menu: sortMenu(menu)
});
})
.catch((err) => {
console.error(colors.red('Error getting products for page', err));
});
}else{
if(req.params.page === 'admin'){
next();
return;
}
// lets look for a page
const page = db.pages.findOne({ pageSlug: req.params.page, pageEnabled: 'true' });
// if we have a page lets render it, else throw 404
if(page){
res.render(`${config.themeViews}page`, {
title: page.pageName,
page: page,
searchTerm: req.params.page,
session: req.session,
message: clearSessionValue(req.session, 'message'),
messageType: clearSessionValue(req.session, 'messageType'),
pageCloseBtn: showCartCloseBtn('page'),
config: req.app.config,
metaDescription: req.app.config.cartTitle + ' - ' + page,
helpers: req.handlebars.helpers,
showFooter: 'showFooter',
menu: sortMenu(await getMenu(db))
});
}else{
res.status(404).render('error', {
title: '404 Error - Page not found',
config: req.app.config,
message: '404 Error - Page not found',
helpers: req.handlebars.helpers,
showFooter: 'showFooter',
menu: sortMenu(await getMenu(db))
});
}
}
});
module.exports = router;