pay.js 8.5 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. let last = _.last(arr);
  46. last = parseInt(last);
  47. rePayTimes = (last || 0) + 1;
  48. }
  49. await this.closeOrder(pay);
  50. }
  51. // 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)
  52. const str = this.ctx.service.util.trade.createNonceStr();
  53. const arr = no.split('-');
  54. // 订单中pay的信息
  55. const payObject = { pay_type: type, pay_no: `${_.last(arr)}-${str}-${rePayTimes}` };
  56. const totalMoney = this.getOrderNeedPay(order);
  57. payObject.pay_money = totalMoney;
  58. let payData;
  59. let res;
  60. // 找到当前用户的openid:这里涉及问题是: 如果自己下单,自己付款.那没有问题;
  61. // 如果是自己下单.如果使用账号密码登录再付款.还用下单的人找到的openid就不能在这个微信号上进行支付了;
  62. // 所以此处是需要用当前用户的openid进行支付,如果之前生成单子.还需要检查当前用户的openid和之前的openid是否一致
  63. // 如果不一致.则需要将之前的订单关闭,重新生成
  64. // 请求微信支付接口的数据
  65. if (type === '0') {
  66. payData = this.getWxPayData(order_id, totalMoney, payObject.pay_no);
  67. payObject.openid = payData.openid;
  68. }
  69. try {
  70. this.tran.update('Order', order_id, { pay: payObject });
  71. await this.tran.run();
  72. } catch (error) {
  73. await this.tran.rollback();
  74. console.error(error);
  75. }
  76. if (type === '0') {
  77. res = await this.create(payData);
  78. res = this.preparToUniAppWxPay(res);
  79. }
  80. return res;
  81. }
  82. /**
  83. * 支付订单回调函数
  84. * @param {Object} body 请求地址参数
  85. * @param body.result 支付回调结果
  86. */
  87. async callBackPayOrder({ result }) {
  88. const { out_trade_no, payer } = result;
  89. // TODO: 没有需要报警,没有订单号就出问题了
  90. if (!out_trade_no) {
  91. console.error('没有支付订单号');
  92. return;
  93. }
  94. const openid = _.get(payer, 'openid');
  95. const query = { 'pay.pay_no': new RegExp(`${out_trade_no}`), 'pay.openid': openid };
  96. let orderData = await this.orderModel.findOne(query);
  97. // TODO: 没找到订单也是有问题的,需要报警
  98. if (!orderData) {
  99. console.error('没有找到订单');
  100. return;
  101. }
  102. orderData = JSON.parse(JSON.stringify(orderData));
  103. const payData = _.get(orderData, 'pay', {});
  104. // 支付结果全都存起来
  105. payData.result = result;
  106. // 支付时间
  107. payData.pay_time = moment().format('YYYY-MM-DD HH:mm:ss');
  108. // 修改状态
  109. try {
  110. this.tran.update('Order', orderData._id, { pay: payData, status: '1' });
  111. await this.tran.run();
  112. // 拆订单
  113. await this.ctx.service.trade.orderDetail.create({ order_id: orderData._id }, this.tran);
  114. // 加积分
  115. await this.ctx.service.user.point.afterPayOrder({ order_id: orderData._id, openid }, this.tran);
  116. console.log(this.tran.getOperations());
  117. await this.tran.run();
  118. } catch (error) {
  119. console.error(error);
  120. await this.tran.rollback();
  121. throw new BusinessError(ErrorCode.SERVICE_FAULT, '支付回调:修改失败');
  122. } finally {
  123. // 清空事务
  124. this.tran.clean();
  125. }
  126. }
  127. /**
  128. * 关闭订单
  129. * @param {Object} pay 支付信息
  130. */
  131. async closeOrder(pay) {
  132. const { pay_type, pay_no } = pay;
  133. if (pay_type === '0') {
  134. // 微信支付方式
  135. const params = { config: this.appConfig, order_no: pay_no };
  136. const url = `${this.wxDomain}/pay/closeOrder`;
  137. const res = await this.httpUtil.cpost(url, params);
  138. return res || 'ok';
  139. }
  140. }
  141. /**
  142. * 微信支付:整理出uniapp需要的数据
  143. * @param {Object} data 微信接口的数据
  144. */
  145. preparToUniAppWxPay(data) {
  146. const obj = {
  147. // appid: _.get(data, 'appid'),
  148. // prepayid: _.get(data, 'prepay_id'),
  149. nonceStr: _.get(data, 'nonceStr'),
  150. package: `prepay_id=${_.get(data, 'prepay_id')}`,
  151. signType: _.get(data, 'signType'),
  152. timeStamp: _.get(data, 'timestamp'),
  153. paySign: _.get(data, 'paySign'),
  154. };
  155. return obj;
  156. }
  157. /**
  158. * 组织微信支付数据
  159. * @param {String} order_id 订单号
  160. * @param {Number} money 支付金额
  161. * @param {String} no 支付订单号
  162. */
  163. getWxPayData(order_id, money, no) {
  164. const openid = _.get(this.ctx, 'user.openid');
  165. const data = { config: this.appConfig, money, openid, order_no: no, desc: '购物', notice_url: this.payOrderReturnUrl(order_id) };
  166. return data;
  167. }
  168. /**
  169. * 计算订单需支付的金额
  170. * @param {Object} order 要支付的订单数据
  171. */
  172. getOrderNeedPay(order) {
  173. let total = 0;
  174. const { total_detail = {} } = order;
  175. for (const key in total_detail) {
  176. total = _.floor(total_detail[key] + total, 2);
  177. }
  178. return total;
  179. }
  180. /**
  181. * 查询订单
  182. * @param {String} order_no 订单号
  183. */
  184. async search(order_no) {
  185. assert(order_no, '缺少订单号,无法查询订单信息');
  186. const params = { config: this.appConfig, order_no };
  187. const url = `${this.wxDomain}/pay/searchOrderByOrderNo`;
  188. const wxOrderReq = await this.httpUtil.cpost(url, params);
  189. return wxOrderReq;
  190. }
  191. /**
  192. * 创建订单,获取微信支付签名
  193. * @param {Object} data 数据
  194. */
  195. async create(data) {
  196. const { money, openid, order_no, desc, notice_url } = data;
  197. const wxOrderData = { config: this.appConfig, money, openid, order_no, desc, notice_url };
  198. const url = `${this.wxDomain}/pay/payOrder`;
  199. const res = await this.httpUtil.cpost(url, wxOrderData);
  200. if (res) return res;
  201. throw new BusinessError(ErrorCode.SERVICE_FAULT, '微信下单失败!');
  202. }
  203. /**
  204. * 关闭订单
  205. * @param {String} order_no 订单号
  206. */
  207. async close(order_no) {
  208. assert(order_no, '缺少订单号,无法查询订单信息');
  209. const params = { config: this.appConfig, order_no };
  210. const url = `${this.wxDomain}/pay/closeOrder`;
  211. const res = await this.httpUtil.cpost(url, params);
  212. return res || 'ok';
  213. }
  214. /**
  215. * TODO 退款,金额需要指定.可能是部分退款,也可能是全额退款
  216. * @param {String} order_no 支付订单号
  217. * @param {String} out_refund_no 退款单号
  218. * @param {String} money 退款金额
  219. * @param {String} reason 原因
  220. */
  221. async refund({ order_no, out_refund_no, money, reason }) {
  222. assert(order_no, '缺少订单号,无法查询订单信息');
  223. assert(out_refund_no, '缺少退款单号,无法退款');
  224. const url = `${this.wxDomain}/pay/refundOrder`;
  225. const params = { config: this.appConfig, order_no, out_refund_no, money, reason };
  226. const wxRefundReq = await this.httpUtil.cpost(url, params);
  227. return wxRefundReq || 'ok';
  228. }
  229. }
  230. module.exports = PayService;