pay.js 9.2 KB

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  1. 'use strict';
  2. const { CrudService } = require('naf-framework-mongoose-free/lib/service');
  3. const { BusinessError, ErrorCode } = require('naf-core').Error;
  4. const _ = require('lodash');
  5. const assert = require('assert');
  6. const Transaction = require('mongoose-transactions');
  7. const moment = require('moment');
  8. //
  9. class PayService extends CrudService {
  10. constructor(ctx) {
  11. super(ctx, 'pay');
  12. this.httpUtil = this.ctx.service.util.httpUtil;
  13. this.appConfig = 'pointApp';
  14. this.orderModel = this.ctx.model.Trade.Order;
  15. this.dictDataModel = this.ctx.model.Dev.DictData;
  16. this.payOrderReturnUrl = this.app.config.payReturn.order;
  17. this.wxDomain = _.get(this.app, 'config.httpPrefix.wechat');
  18. this.tran = new Transaction();
  19. }
  20. /**
  21. * 去支付订单
  22. * 1.有支付方式之分; 微信/支付宝
  23. * 2.根据不同方式去请求
  24. * @param {Object} body 请求体
  25. * @param body.order_id 订单id
  26. * @param body.type 支付方式
  27. */
  28. async toPayOrder({ order_id, type = '0' }) {
  29. const payWay = await this.dictDataModel.findOne({ value: type, status: '0' });
  30. if (!payWay) throw new BusinessError(ErrorCode.DATA_INVALID, '该支付方式暂时无法使用');
  31. const order = await this.orderModel.findById(order_id);
  32. if (!order) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到订单数据');
  33. const { no, pay, stauts } = order;
  34. let rePayTimes = 0;
  35. if (stauts === '1') throw new BusinessError(ErrorCode.DATA_EXISTED, '订单已支付,无需重复支付');
  36. // 检查是否有支付信息如果有的话,支付方式是否一致
  37. if (_.isObject(pay) && Object.keys(pay).length > 0) {
  38. const pay_no = _.get(pay, 'pay_no');
  39. if (pay_no) {
  40. // 有支付订单.则先查支付订单是否可以继续支付
  41. // TODO:
  42. // 1.如果有支付信息及支付单号,直接关闭.重开
  43. const arr = pay_no.split('-');
  44. // 获取重支付的次数,重支付次数+1
  45. const last = _.last(arr);
  46. rePayTimes = this.ctx.plus(last, 1);
  47. }
  48. await this.closeOrder(pay);
  49. }
  50. // 没有支付信息(要是有支付信息,上面直接return了.漏下来的都是没有的处理方案)
  51. const str = this.ctx.service.util.trade.createNonceStr();
  52. const arr = no.split('-');
  53. // 订单中pay的信息
  54. const payObject = { pay_type: type, pay_no: `${_.last(arr)}-${str}-${rePayTimes}` };
  55. const totalMoney = this.getOrderNeedPay(order);
  56. payObject.pay_money = totalMoney;
  57. let payData;
  58. let res;
  59. // 找到当前用户的openid:这里涉及问题是: 如果自己下单,自己付款.那没有问题;
  60. // 如果是自己下单.如果使用账号密码登录再付款.还用下单的人找到的openid就不能在这个微信号上进行支付了;
  61. // 所以此处是需要用当前用户的openid进行支付,如果之前生成单子.还需要检查当前用户的openid和之前的openid是否一致
  62. // 如果不一致.则需要将之前的订单关闭,重新生成
  63. // 请求微信支付接口的数据
  64. if (type === '0') {
  65. payData = this.getWxPayData(order_id, totalMoney, payObject.pay_no);
  66. payObject.openid = payData.openid;
  67. }
  68. try {
  69. this.tran.update('Order', order_id, { pay: payObject });
  70. await this.tran.run();
  71. } catch (error) {
  72. await this.tran.rollback();
  73. console.error(error);
  74. }
  75. if (type === '0') {
  76. res = await this.create(payData);
  77. res = this.preparToUniAppWxPay(res);
  78. }
  79. return res;
  80. }
  81. /**
  82. * 支付订单回调函数
  83. * @param {Object} body 请求地址参数
  84. * @param body.result 支付回调结果
  85. */
  86. async callBackPayOrder({ result }) {
  87. const { out_trade_no, payer } = result;
  88. // TODO: 没有需要报警,没有订单号就出问题了
  89. if (!out_trade_no) {
  90. console.error('没有支付订单号');
  91. return;
  92. }
  93. const openid = _.get(payer, 'openid');
  94. const query = { 'pay.pay_no': new RegExp(`${out_trade_no}`), 'pay.openid': openid };
  95. let orderData = await this.orderModel.findOne(query);
  96. // TODO: 没找到订单也是有问题的,需要报警
  97. if (!orderData) {
  98. console.error('没有找到订单');
  99. return;
  100. }
  101. orderData = JSON.parse(JSON.stringify(orderData));
  102. const payData = _.get(orderData, 'pay', {});
  103. // 支付结果全都存起来
  104. payData.result = result;
  105. // 支付时间
  106. payData.pay_time = moment().format('YYYY-MM-DD HH:mm:ss');
  107. // 修改状态
  108. try {
  109. this.tran.update('Order', orderData._id, { pay: payData, status: '1' });
  110. await this.tran.run();
  111. // 拆订单
  112. await this.ctx.service.trade.orderDetail.create({ order_id: orderData._id }, this.tran);
  113. // 加积分
  114. await this.ctx.service.user.point.afterPayOrder({ order_id: orderData._id, openid }, this.tran);
  115. await this.tran.run();
  116. } catch (error) {
  117. console.error(error);
  118. await this.tran.rollback();
  119. throw new BusinessError(ErrorCode.SERVICE_FAULT, '支付回调:修改失败');
  120. } finally {
  121. // 清空事务
  122. this.tran.clean();
  123. }
  124. }
  125. /**
  126. * 关闭订单
  127. * @param {Object} pay 支付信息
  128. */
  129. async closeOrder(pay) {
  130. const { pay_type, pay_no } = pay;
  131. if (pay_type === '0') {
  132. // 微信支付方式
  133. const params = { config: this.appConfig, order_no: pay_no };
  134. const url = `${this.wxDomain}/pay/closeOrder`;
  135. const res = await this.httpUtil.cpost(url, params);
  136. return res || 'ok';
  137. }
  138. }
  139. /**
  140. * 微信支付:整理出uniapp需要的数据
  141. * @param {Object} data 微信接口的数据
  142. */
  143. preparToUniAppWxPay(data) {
  144. const obj = {
  145. // appid: _.get(data, 'appid'),
  146. // prepayid: _.get(data, 'prepay_id'),
  147. nonceStr: _.get(data, 'nonceStr'),
  148. package: `prepay_id=${_.get(data, 'prepay_id')}`,
  149. signType: _.get(data, 'signType'),
  150. timeStamp: _.get(data, 'timestamp'),
  151. paySign: _.get(data, 'paySign'),
  152. };
  153. return obj;
  154. }
  155. /**
  156. * 组织微信支付数据
  157. * @param {String} order_id 订单号
  158. * @param {Number} money 支付金额
  159. * @param {String} no 支付订单号
  160. */
  161. getWxPayData(order_id, money, no) {
  162. const openid = _.get(this.ctx, 'user.openid');
  163. const data = { config: this.appConfig, money, openid, order_no: no, desc: '购物', notice_url: this.payOrderReturnUrl(order_id) };
  164. return data;
  165. }
  166. /**
  167. * 计算订单需支付的金额
  168. * @param {Object} order 要支付的订单数据
  169. */
  170. getOrderNeedPay(order) {
  171. let total = 0;
  172. const { total_detail = {} } = order;
  173. const { discount_detail, ...others } = total_detail;
  174. for (const key in others) {
  175. total = this.ctx.plus(total_detail[key], total);
  176. }
  177. // 优惠券部分
  178. if (discount_detail) {
  179. let totalDiscount = 0;
  180. for (const uc in discount_detail) {
  181. // uc:用户领取的优惠券id
  182. // detail: 该优惠券下的明细
  183. const detail = discount_detail[uc];
  184. if (!detail) continue;
  185. for (const gsid in detail) {
  186. // gsid:商品规格的id
  187. // gs:该商品的价格明细,只取出discountMoney就行
  188. const gs = detail[gsid];
  189. const dm = _.get(gs, 'discountMoney', 0);
  190. totalDiscount = this.ctx.plus(totalDiscount, dm);
  191. }
  192. }
  193. total = this.ctx.minus(total, totalDiscount);
  194. }
  195. return total;
  196. }
  197. /**
  198. * 查询订单
  199. * @param {String} order_no 订单号
  200. */
  201. async search(order_no) {
  202. assert(order_no, '缺少订单号,无法查询订单信息');
  203. const params = { config: this.appConfig, order_no };
  204. const url = `${this.wxDomain}/pay/searchOrderByOrderNo`;
  205. const wxOrderReq = await this.httpUtil.cpost(url, params);
  206. return wxOrderReq;
  207. }
  208. /**
  209. * 创建订单,获取微信支付签名
  210. * @param {Object} data 数据
  211. */
  212. async create(data) {
  213. const { money, openid, order_no, desc, notice_url } = data;
  214. const wxOrderData = { config: this.appConfig, money, openid, order_no, desc, notice_url };
  215. const url = `${this.wxDomain}/pay/payOrder`;
  216. const res = await this.httpUtil.cpost(url, wxOrderData);
  217. if (res) return res;
  218. throw new BusinessError(ErrorCode.SERVICE_FAULT, '微信下单失败!');
  219. }
  220. /**
  221. * 关闭订单
  222. * @param {String} order_no 订单号
  223. */
  224. async close(order_no) {
  225. assert(order_no, '缺少订单号,无法查询订单信息');
  226. const params = { config: this.appConfig, order_no };
  227. const url = `${this.wxDomain}/pay/closeOrder`;
  228. const res = await this.httpUtil.cpost(url, params);
  229. return res || 'ok';
  230. }
  231. /**
  232. * TODO 退款,金额需要指定.可能是部分退款,也可能是全额退款
  233. * @param {String} order_no 支付订单号
  234. * @param {String} out_refund_no 退款单号
  235. * @param {String} money 退款金额
  236. * @param {String} reason 原因
  237. */
  238. async refund({ order_no, out_refund_no, money, reason }) {
  239. assert(order_no, '缺少订单号,无法查询订单信息');
  240. assert(out_refund_no, '缺少退款单号,无法退款');
  241. const url = `${this.wxDomain}/pay/refundOrder`;
  242. const params = { config: this.appConfig, order_no, out_refund_no, money, reason };
  243. const wxRefundReq = await this.httpUtil.cpost(url, params);
  244. return wxRefundReq || 'ok';
  245. }
  246. }
  247. module.exports = PayService;