seckill.js
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/**
* 秒杀结算
*/
'use strict';
const _ = require('lodash');
const crypto = global.yoho.crypto;
const co = require('bluebird').coroutine;
const seckillModel = require('../models/seckill');
const headerModel = require('../../../doraemon/models/header'); // 头部model
const BAD_REQUEST = '非法请求';
const SLAT = 'yohobuyseckill98';
exports.ensure = (req, res, next) => {
const sku = Number.parseInt(req.query.sku, 10);
const skn = Number.parseInt(req.query.skn, 10);
const uid = req.user.uid;
let activityId;
let orderInfo = req.cookies['order-info'];
try {
orderInfo = JSON.parse(req.cookies['order-info']);
} catch (e) {
orderInfo = {};
}
// require skn, sku;
if (!(sku && skn)) {
return next();
}
co(function*() {
let paymentOption = {
buy_number: 1,
yoho_coin_mode: 0, // 默认不使用有货币
product_sku: sku,
sku_type: 'S',
uid
};
let skillData = yield seckillModel.skillData(skn); // 根据skn查活动信息
let view = {
orderEnsure: false,
message: ''
};
skillData = skillData.data;
// 不在秒杀中
if (skillData && (skillData.status !== 2)) {
return res.redirect('/product/seckill');
}
if (!(
skillData &&
skillData.secKillSku.some(obj => obj.productSku === sku) // skn has sku;
)) {
view.message = '挤爆啦,系统繁忙';
return res.render('order-ensure', Object.assign({
module: 'cart',
page: 'seckill',
pageHeader: headerModel.setNav({
navTitle: '确认订单',
backUrl: '/product/show_' + skn + '.html'
}),
}, view));
}
paymentOption.activity_id = activityId = skillData.activityId;
let orderComputerData;
if (orderInfo) {
orderComputerData = yield seckillModel.compute(_.assign(paymentOption, {
delivery_way: orderInfo.deliveryId || 1,
payment_type: orderInfo.paymentType || 1,
use_yoho_coin: orderInfo.yohoCoin || 0
}));
}
// 获取结算 数据
let paymentInfo = yield seckillModel.payment(paymentOption, orderInfo, orderComputerData.data);
if (paymentInfo.code !== 200) {
view = {
orderEnsure: false,
message: paymentInfo.message
};
// hotfix: nginx 接口限流, code:9999991时没message 信息
if (!view.message) {
view.message = '挤爆啦,系统繁忙';
}
} else {
// 渲染
view = Object.assign({
seckill: skillData,
orderEnsure: true,
sku,
}, paymentInfo.data);
}
res.locals.title = '确认订单';
res.render('order-ensure', Object.assign({
module: 'cart',
page: 'seckill',
pageHeader: headerModel.setNav({
navTitle: '确认订单',
backUrl: '/product/show_' + skn + '.html'
}),
cartToken: crypto.encryption(SLAT, [sku, activityId].join(''))
}, view));
})().catch(next);
};
exports.compute = (req, res, next) => {
const uid = req.user.uid,
sku = req.body.sku,
paymentType = Number.parseInt(req.body.paymentType || 1, 10),
activityId = req.body.activityId;
if (!req.xhr) {
return next(400);
}
// 必填字段
if ([uid, sku, activityId, paymentType].some(field => !field)) {
return res.status(400).json({
code: 400,
msg: BAD_REQUEST
});
}
const options = {
sku_type: 'S', // 秒杀
buy_number: 1,
yoho_coin_mode: 1,
payment_type: paymentType,
uid: req.user.uid,
product_sku: sku,
delivery_way: req.body.deliveryId || 1,
use_yoho_coin: req.body.yohoCoin || 0,
activity_id: activityId
};
return seckillModel.compute(options)
.then(result => {
res.json(result.data);
})
.catch(next);
};
exports.submit = (req, res, next) => {
const uid = req.user.uid,
sku = req.body.sku,
activityId = req.body.activityId,
deliveryTime = Number.parseInt(req.body.deliveryTime, 10),
deliveryWay = Number.parseInt(req.body.deliveryWay, 10),
paymentId = Number.parseInt(req.body.paymentId, 10),
paymentType = Number.parseInt(req.body.paymentType, 10),
token = req.body.cartToken;
let addressId = req.body.addressId || '';
if (!req.xhr) {
return next();
}
let compareToken = crypto.encryption(SLAT, [sku, activityId].join(''));
if (token !== compareToken) {
return next();
}
if (!addressId) {
return res.json({code: 400, message: '请选择地址'});
} else {
addressId = Number.parseInt(crypto.decrypt(null, req.body.addressId), 10);
}
if ([uid, sku, activityId, addressId, deliveryTime,
deliveryWay, paymentId, paymentType
].some(field => !field)) {
return res.status(400).json({
code: 400,
message: BAD_REQUEST
});
}
const options = {
sku_type: 'S',
buy_number: 1,
invoices_title: req.body.invoicesTitle || '',
invoices_type_id: req.body.invoicesTypeId || '',
use_yoho_coin: Number.parseFloat(req.body.useYohoCoin) || 0,
remark: req.body.remark || '',
address_id: addressId,
delivery_time: deliveryTime,
delivery_way: deliveryWay,
payment_id: paymentId,
payment_type: paymentType,
product_sku: sku,
activity_id: activityId,
uid
};
return seckillModel.submit(options)
.then(result => {
res.clearCookie('order-info');
res.json(result);
})
.catch(next);
};