pay.js 9.4 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 = this.app.config.wxPayConfig;
  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. this.joinErrorRefundCode = _.get(this.app, 'config.errcode.groupJoinRefund');
  20. }
  21. /**
  22. * 去支付订单
  23. * 1.有支付方式之分; 微信/支付宝
  24. * 2.根据不同方式去请求
  25. * @param {Object} body 请求体
  26. * @param body.order_id 订单id
  27. * @param body.type 支付方式
  28. */
  29. async toPayOrder({ order_id, type = '0' }) {
  30. const payWay = await this.dictDataModel.findOne({ value: type, status: '0' });
  31. if (!payWay) throw new BusinessError(ErrorCode.DATA_INVALID, '该支付方式暂时无法使用');
  32. const order = await this.orderModel.findById(order_id);
  33. if (!order) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到订单数据');
  34. const { no, pay, stauts } = order;
  35. let rePayTimes = 0;
  36. if (stauts === '1') throw new BusinessError(ErrorCode.DATA_EXISTED, '订单已支付,无需重复支付');
  37. // 检查是否有支付信息如果有的话,支付方式是否一致
  38. if (_.isObject(pay) && Object.keys(pay).length > 0) {
  39. const pay_no = _.get(pay, 'pay_no');
  40. if (pay_no) {
  41. // 有支付订单.则先查支付订单是否可以继续支付
  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}-${rePayTimes}` };
  55. const totalMoney = this.ctx.service.util.order.payOrder_RealPay(order);
  56. payObject.pay_money = totalMoney;
  57. let payData;
  58. let res;
  59. // 找到当前用户的openid:这里涉及问题是: 如果自己下单,自己付款.那没有问题;
  60. // 如果是自己下单.如果使用账号密码登录再付款.还用下单的人找到的openid就不能在这个微信号上进行支付了;
  61. // 所以此处是需要用当前用户的openid进行支付,如果之前生成单子.还需要检查当前用户的openid和之前的openid是否一致
  62. // 如果不一致.则需要将之前的订单关闭,重新生成
  63. // 请求微信支付接口的数据
  64. if (type === '0') {
  65. payData = this.getWxPayData(order_id, totalMoney, payObject.pay_no);
  66. payObject.openid = payData.openid;
  67. }
  68. try {
  69. this.tran.update('Order', order_id, { pay: payObject });
  70. await this.tran.run();
  71. } catch (error) {
  72. await this.tran.rollback();
  73. console.error(error);
  74. }
  75. if (totalMoney <= 0) {
  76. // 小于等于0的支付金额,不需要付款
  77. return { needPay: false };
  78. }
  79. if (type === '0') {
  80. res = await this.create(payData);
  81. res = this.preparToUniAppWxPay(res);
  82. }
  83. return res;
  84. }
  85. async withoutPay({ order_id }) {
  86. try {
  87. this.tran.update('Order', order_id, { status: '1' });
  88. await this.tran.run();
  89. // 拆订单
  90. await this.ctx.service.trade.orderDetail.create({ order_id }, this.tran);
  91. await this.tran.run();
  92. } catch (error) {
  93. console.error(error);
  94. await this.tran.rollback();
  95. throw new BusinessError(ErrorCode.SERVICE_FAULT, '支付回调:修改失败');
  96. } finally {
  97. // 清空事务
  98. this.tran.clean();
  99. }
  100. }
  101. /**
  102. * 支付订单回调函数
  103. * @param {Object} body 请求地址参数
  104. * @param body.result 支付回调结果
  105. */
  106. async callBackPayOrder({ result }) {
  107. const { out_trade_no, payer } = result;
  108. // 没有需要报警,没有订单号就出问题了
  109. if (!out_trade_no) {
  110. console.error('没有支付订单号');
  111. return;
  112. }
  113. const openid = _.get(payer, 'openid');
  114. const query = { 'pay.pay_no': new RegExp(`${out_trade_no}`), 'pay.openid': openid };
  115. let orderData = await this.orderModel.findOne(query);
  116. // 没找到订单也是有问题的,需要报警
  117. if (!orderData) {
  118. console.error('没有找到订单');
  119. return;
  120. }
  121. orderData = JSON.parse(JSON.stringify(orderData));
  122. const payData = _.get(orderData, 'pay', {});
  123. // 支付结果全都存起来
  124. payData.result = result;
  125. // 支付时间
  126. payData.pay_time = moment().format('YYYY-MM-DD HH:mm:ss');
  127. // 修改状态
  128. try {
  129. this.tran.update('Order', orderData._id, { pay: payData, status: '1' });
  130. await this.tran.run();
  131. // 拆订单
  132. await this.ctx.service.trade.orderDetail.create({ order_id: orderData._id }, this.tran);
  133. await this.tran.run();
  134. } catch (error) {
  135. console.error(error);
  136. await this.tran.rollback();
  137. let reason = '服务处理发生错误,原路退款!';
  138. if (error.errcode === this.joinErrorRefundCode) {
  139. reason = '您未能成功参与拼团:拼团人数已满';
  140. // 需要删除订单
  141. await this.ctx.service.trade.order.cancel({ order_id: _.get(orderData, '_id') });
  142. }
  143. // 先退款,所有回调发生错误的单子都需要退掉
  144. const str = this.ctx.service.util.trade.createNonceStr();
  145. const obj = {
  146. order_no: _.get(orderData, 'pay.pay_no'),
  147. out_refund_no: `${_.get(orderData, 'pay.pay_no')}-service_error-${str}`,
  148. money: _.get(orderData, 'pay.pay_money'),
  149. reason,
  150. };
  151. await this.refund(obj);
  152. throw new BusinessError(ErrorCode.SERVICE_FAULT, '支付回调:修改失败');
  153. } finally {
  154. // 清空事务
  155. this.tran.clean();
  156. }
  157. }
  158. /**
  159. * 关闭订单
  160. * @param {Object} pay 支付信息
  161. */
  162. async closeOrder(pay) {
  163. const { pay_type, pay_no } = pay;
  164. if (pay_type === '0') {
  165. // 微信支付方式
  166. const params = { config: this.appConfig, order_no: pay_no };
  167. const url = `${this.wxDomain}/pay/closeOrder`;
  168. const res = await this.httpUtil.cpost(url, params);
  169. return res || 'ok';
  170. }
  171. }
  172. /**
  173. * 微信支付:整理出uniapp需要的数据
  174. * @param {Object} data 微信接口的数据
  175. */
  176. preparToUniAppWxPay(data) {
  177. const obj = {
  178. // appid: _.get(data, 'appid'),
  179. // prepayid: _.get(data, 'prepay_id'),
  180. nonceStr: _.get(data, 'nonceStr'),
  181. package: `prepay_id=${_.get(data, 'prepay_id')}`,
  182. signType: _.get(data, 'signType'),
  183. timeStamp: _.get(data, 'timestamp'),
  184. paySign: _.get(data, 'paySign'),
  185. };
  186. return obj;
  187. }
  188. /**
  189. * 组织微信支付数据
  190. * @param {String} order_id 订单号
  191. * @param {Number} money 支付金额
  192. * @param {String} no 支付订单号
  193. */
  194. getWxPayData(order_id, money, no) {
  195. const openid = _.get(this.ctx, 'user.openid');
  196. const data = { config: this.appConfig, money, openid, order_no: no, desc: '购物', notice_url: this.payOrderReturnUrl(order_id) };
  197. return data;
  198. }
  199. /**
  200. * 查询订单
  201. * @param {String} order_no 订单号
  202. */
  203. async search(order_no) {
  204. assert(order_no, '缺少订单号,无法查询订单信息');
  205. const params = { config: this.appConfig, order_no };
  206. const url = `${this.wxDomain}/pay/searchOrderByOrderNo`;
  207. const wxOrderReq = await this.httpUtil.cpost(url, params);
  208. return wxOrderReq;
  209. }
  210. /**
  211. * 创建订单,获取微信支付签名
  212. * @param {Object} data 数据
  213. */
  214. async create(data) {
  215. const { money, openid, order_no, desc, notice_url } = data;
  216. const wxOrderData = { config: this.appConfig, money, openid, order_no, desc, notice_url };
  217. const url = `${this.wxDomain}/pay/payOrder`;
  218. const res = await this.httpUtil.cpost(url, wxOrderData);
  219. if (res) return res;
  220. throw new BusinessError(ErrorCode.SERVICE_FAULT, '微信下单失败!');
  221. }
  222. /**
  223. * 关闭订单
  224. * @param {String} order_no 订单号
  225. */
  226. async close(order_no) {
  227. assert(order_no, '缺少订单号,无法查询订单信息');
  228. const params = { config: this.appConfig, order_no };
  229. const url = `${this.wxDomain}/pay/closeOrder`;
  230. const res = await this.httpUtil.cpost(url, params);
  231. return res || 'ok';
  232. }
  233. /**
  234. * TODO 退款,金额需要指定.可能是部分退款,也可能是全额退款
  235. * @param {String} order_no 支付订单号
  236. * @param {String} out_refund_no 退款单号
  237. * @param {String} money 退款金额
  238. * @param {String} reason 原因
  239. */
  240. async refund({ order_no, out_refund_no, money, reason }) {
  241. assert(order_no, '缺少订单号,无法查询订单信息');
  242. assert(out_refund_no, '缺少退款单号,无法退款');
  243. const url = `${this.wxDomain}/pay/refundOrder`;
  244. const params = { config: this.appConfig, order_no, out_refund_no, money, reason };
  245. const wxRefundReq = await this.httpUtil.cpost(url, params);
  246. return wxRefundReq || 'ok';
  247. }
  248. }
  249. module.exports = PayService;