import {
  axios
} from './libs'
export default class Coupons {
  map = {};
  updates = {};
  constructor() {

  }
  async getVerified() {
    const {
      getOpenid
    } = getApp()
    const openid = await getOpenid()
    const list = await axios.get('/Api/Coupon/UserCouponList', {
      "userCode": openid,
      "couponType": -1,
      "verified": true,
      "paging": 0,
    })
    list.forEach(coupon => {
      this.set(coupon)
    })
    return list.map(({
      code
    }) => code)
  }
  async getMallCodes(mallCode, mallName) {
    const {
      getOpenid
    } = getApp()
    const openid = await getOpenid()
    const list = await axios.get('/Api/Coupon/MallCouponPublishList', {
      "mallCode": mallCode,
      userCode: openid
    })
    list.forEach(coupon => {
      Object.assign(coupon, {
        mallCode,
        mallName
      })
      this.set(coupon)
    })
    return list.map(({
      code
    }) => code)
  }
  async getUserCodes(type) {
    const {
      getOpenid
    } = getApp()
    const openid = await getOpenid()
    const list = await axios.get('/Api/Coupon/UserCouponList', {
      "userCode": openid,
      "couponType": type,
      "verified": false,
      "paging": 0,
    })
    list.forEach(coupon => {
      this.set(coupon)
    })
    return list.map(({
      code
    }) => code)
  }
  get(code) {
    return this.map[code]
  }
  set(coupon) {
    this.map[coupon.code] = {
      ...this.map[coupon.code],
      ...coupon
    }
    this.updates[coupon.code] && this.updates[coupon.code].forEach(cb => cb(this.map[coupon.code]))
    return this.map[coupon.code]
  }
  onUpdate(code, cb) {
    this.updates[code] = this.updates[code] ? [...this.updates[code], cb] : [cb]
  }
}