server-v2/app/service/business/payOrder.js

'use strict';
const { CrudService } = require('naf-framework-mongoose-free/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;
const _ = require('lodash');
const assert = require('assert');
const moment = require('moment');
//
class PayOrderService extends CrudService {
  constructor(ctx) {
    super(ctx, 'payorder');
    this.model = this.ctx.model.Business.PayOrder;
    this.payService = this.ctx.service.wxpay;
    this.lessonStudentModel = this.ctx.model.Business.LessonStudent;
  }

  async beforeCreate(data) {
    if (!_.get(data, 'order_no')) data.order_no = this.getOrderNo();
    return data;
  }

  async afterCreate(body, data) {
    await this.syncData(data);
    const wxSign = await this.payService.create(data);
    return { data, wxSign };
  }

  async afterUpdate(filter, body, data) {
    await this.syncData(data);
    return data;
  }
  /**
   * 支付同步
   * @param {Object} data 支付单数据
   */
  async syncData(data) {
    const pay_for = _.get(data, 'pay_for');
    if (!pay_for) {
      // 不知道该去同步哪个表的支付状态,不处理
      return;
    }
    if (pay_for === 'Lesson') {
      // 因为上课产生的支付,去找lessonStudent,修改指定学生的支付状态
      const { form_id: _id, status: is_pay } = data;
      await this.lessonStudentModel.updateOne({ _id }, { is_pay });
    }
  }

  /**
   * 重新支付
   * @param {String} body 参数体
   * @property {String} id 数据id
   */
  async toRePay({ id }) {
    const data = await this.model.findById(id);
    if (!data) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到支付的信息');
    // 找到这个订单,然后获取到订单号
    const { order_no } = data;
    // 利用订单号去查询微信那边,该订单是否还存在
    const wxOrder = await this.payService.search(order_no);
    let wxSign;
    if (_.get(wxOrder, 'trade_state') === 'NOTPAY') {
      // 未支付就用原数据,去支付
      wxSign = await this.payService.create(data);
    } else if (_.get(wxOrder, 'trade_state') === 'SUCCESS') {
      throw new BusinessError(ErrorCode.SERVICE_FAULT, '订单已支付,无需重复支付');
    } else if (_.get(wxOrder, 'trade_state') === 'USERPAYING') {
      throw new BusinessError(ErrorCode.SERVICE_FAULT, '订单支付中');
    } else {
      // 其他情况就当订单被关闭了.直接新订单
      const order_no = this.getOrderNo();
      data.order_no = order_no;
      await data.save();
      wxSign = await this.payService.create(data);
    }
    return { data, wxSign };
  }

  /**
   * 申请退款
   * @param {Object} body 参数体
   * @property {String} id 支付单的数据id
   */
  async toRefund({ id }) {
    // 查询支付
    const data = await this.model.findById(id);
    if (!data) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到要退款的支付数据');
    const wxOrderReq = await this.payService.search(data.order_no);
    if (wxOrderReq) {
      if (!wxOrderReq) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未查询到微信支付订单');
      const wxRefundReq = await this.payService.refund(data.order_no, '退赛');
      if (wxRefundReq) {
        if (wxRefundReq.status !== 'REFUND') throw new BusinessError(ErrorCode.SERVICE_FAULT, '退款失败');
        // 退款成功
        data.status = '-3';
        await data.save();
        await this.syncData(data);
        return 'ok';
      }
    }
    throw new BusinessError(ErrorCode.SERVICE_FAULT, '查询微信支付订单失败');
  }

  /**
   * 关闭订单
   * @param {String} id 支付id
   * @return {Object} 关闭订单结果
   */
  async closeOrder(id) {
    const data = await this.model.findById(id);
    if (!data) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到要退款的支付数据');
    const res = await this.payService.close(data.order_no);
    return res;
  }

  getOrderNo() {
    return `ONCAPP${moment().format('YYYYMMDDHHmmss')}-${_.random(1, 999999)}`;
  }
}

module.exports = PayOrderService;