'use strict';

const assert = require('assert');
const _ = require('lodash');
const { CrudService } = require('naf-framework-mongoose/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;
const moment = require('moment');

class DoctorMoneyService extends CrudService {
  constructor(ctx) {
    super(ctx, 'doctormoney');
    this.model = this.ctx.model.Doctormoney;
    this.cDoctor = this.ctx.model.Doctor;
    this.cPatient = this.ctx.model.Patient;
  }

  async query({ doctorid, ...query }, { skip, limit }) {
    assert(doctorid, 'doctorid不能为空');
    const moneyall = await this.model.find({ doctorid, ...query });
    const moneys = await this.model.find({ doctorid, ...query }).sort({ sendtime: -1 }).limit(limit)
      .skip(skip);
    const newmoneys = [];
    for (const el of moneys) {
      let icon;
      const { id, doctorid, doctorname, patientid, patientname, sendtime, money, content, orderno } = el;
      const patient = await this.cPatient.findById(patientid);
      if (patient) {
        icon = patient.icon;
      }
      newmoneys.push({ id, doctorid, doctorname, patientid, patientname, sendtime, money, content, orderno, icon });
    }
    const result = { total: moneyall.length, data: newmoneys };
    return result;
  }

  // 创建打赏记录
  async create({ doctorid }, data) {
    const { patientid, money, content } = data;
    assert(patientid, '发送人不能为空');
    assert(money, '金额不能为空');
    assert(doctorid, 'doctorid不能为空');

    // 通过群id取得群内医生信息
    const doctor = await this.cDoctor.findById(doctorid);
    if (!doctor) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '医生不存在');
    }
    const patient = await this.cPatient.findById(patientid);
    if (!patient) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '患者信息不存在');
    }
    // 建立打赏信息
    const newdata = {
      doctorname: doctor.name,
      patientname: patient.name,
      sendtime: moment().format('YYYY-MM-DD HH:mm:ss'),
      ...data };
    const entity = await this.model.create(newdata);
    if (entity) {
      // 将打赏金额加入到医生信息中
      doctor.money = await this.plus(doctor.money, money);
      doctor.balance = await this.plus(doctor.balance, money);
      await doctor.save();
    }
    // 当患者给医生打赏时提醒医生
    await this.service.wechat.sendTemplateMsg(this.ctx.app.config.REVIEW_TEMPLATE_ID, doctor.openid, content, patient.name, new Date().toLocaleDateString(), '礼物', '请及时查看');
    return await this.fetch({ id: entity.id });
  }

  async num(a) {
    if (a !== null && a.toString() !== '') {
      const r = /^-?(0|[1-9]+\d*|[1-9]+\d*\.\d+|0\.\d+)$/;
      if (r.test(a.toString())) {
        return true;
      }
    }
    return false;
  }

  async plus(a, b) {
    if (!a) a = 0;
    if (!this.num(a) || !this.num(b)) {
      return null;
    }
    let c,
      d,
      m;
    try {
      c = a.toString().split('.')[1].length;
    } catch (e) {
      c = 0;
    }
    try {
      d = b.toString().split('.')[1].length;
    } catch (e) {
      d = 0;
    }
    m = Math.pow(10, Math.max(c, d));
    return (a * m + b * m) / m;
  }

  async delete({ id }) {
    await this.model.findByIdAndDelete(id);
    return 'deleted';
  }
}

module.exports = DoctorMoneyService;