ecpay-invoice.js

const moment = require('moment')
const ecpay_payment = require('ecpay-payment')

function getAddress (invoice) {
  if (invoice.string_address) {
    return invoice.string_address
  }

  var address = ''
  try {
    address = `${invoice.address.city}${invoice.address.district}${invoice.address.detail}`
  } catch (err) {
    // logger.error('get address error', err)
  }

  return address
}

class Payment {
  constructor (params, user, order, base_url) {
    this.invoice_params = {}
    this.user = user
    this.order = order
    this.params = Object.assign(params, {
      MerchantTradeNo: order.token,
      MerchantTradeDate: moment().format('YYYY/MM/DD HH:mm:ss'),
      TradeDesc: '小院購物',
      TotalAmount: order.total_amount.toString(),
      ReturnURL: `${base_url}/ON_PAYMENT_COMPLETE`,
      ItemName: this.getItemName()
    })

    if (params.InvoiceMark === 'Y') {
      // let invoice = order.invoice
      // this.invoice_params = createInvoiceParams(params, invoice, user)
      this.invoice_params = this.getInvoiceParams()
      delete params.InvoiceItems
    }

    delete params.Items
  }

  getInvoiceParams () {
    const { user, order, order: { invoice } } = this
    var params = {
      RelateNumber: this.params.MerchantTradeNo,
      CustomerEmail: user.email,
      CustomerIdentifier: '',
      InvType: '07',
      CarruerType: '', // 載具類別
      CarruerNum: '', // 載具編號
      CustomerID: '',
      ClearanceMark: '2',
      LoveCode: '',
      InvoiceRemark: '', // 備註
      DelayDay: '0',
      CustomerAddr: getAddress(invoice),
      CustomerPhone: user.mobile_phone || '',
      // CustomerPhone: '1111111111',
      Print: '0',
      TaxType: this.params.TaxType
    }
    switch (order.invoice.type) {
      case 'donated':
        params = Object.assign(params, {
          CustomerName: user.realname,
          Donation: '1',
          LoveCode: 'X13579'
        })
        break
      case 'two_copies':

        if (typeof user.realname !== 'string') {
          throw `user realname error ${user.realname}`
        }

        params = Object.assign(params, {
          CustomerName: user.realname,
          Donation: '2'
        })
        break
      case 'three_copies':
        params = Object.assign(params, {
          CustomerName: invoice.company_name,
          CustomerIdentifier: invoice.company_no.toString(),
          Donation: '2',
          Print: '1'
        })
        break
    }

    var itemNames = []
    var itemCounts = []
    var itemWords = []
    var itemPrices = []
    var itemTaxTypes = []
    order.details.forEach(function (item) {
      itemNames.push(item.item_name)
      itemCounts.push(item.qty)
      itemWords.push('個')
      itemPrices.push(item.amount)
      itemTaxTypes.push(item.taxType || 1)
    })

    // 商品名稱
    params.InvoiceItemName = itemNames.join('|')

    // 商品數量
    params.InvoiceItemCount = itemCounts.join('|')

    // 商品單位
    params.InvoiceItemWord = itemWords.join('|')

    // 商品價格
    params.InvoiceItemPrice = itemPrices.join('|')

    // 商品課稅別
    params.InvoiceItemTaxType = itemTaxTypes.join('|')
    logger.debug('invoice params', params)
    return params
  }

  getItemName () {
    // var { params } = this
    var orderItems = this.order.details.map(i => {
      return {
        name: i.item_name,
        quantity: i.qty,
        currency: '元',
        price: i.amount
      }
    })

    var items = []
    // var alipayItemNames = []
    // var alipayItemCounts = []
    // var alipayItemPrices = []
    orderItems.forEach(function (item) {
      items.push(item.name + ' ' + item.price + ' ' + item.currency + ' x ' + item.quantity)
      // if (params['ChoosePayment'] === 'Alipay') {
      //   alipayItemNames.push(item.name);
      //   alipayItemCounts.push(item.quantity);
      //   alipayItemPrices.push(item.price);
      // }
    })
    return items.join('#').substr(0, 200)
  }

  checkout () {
    const payment = new ecpay_payment()
    const { params, invoice_params } = this
    // logger.debug('!!!!!!! params !!!!', params)
    switch (params.ChoosePayment) {
      case 'Credit':
        return payment.payment_client.aio_check_out_credit_onetime(params, invoice_params)
      case 'WebATM':
        return payment.payment_client.aio_check_out_webatm(params, invoice_params)
      case 'ATM':
        return payment.payment_client.aio_check_out_atm(
          params,
          '',
          '2',
          '',
          invoice_params
        )
      default:
        return payment.payment_client.aio_check_out_all(params, invoice_params)
    }
  }
}

module.exports = {
  checkout: (params, user, order) => {
    const base_url = process.env.PORTAL_PAYMENT_RETURN_URL || process.env.PORTAL_BASE_URL
    const payment = new Payment(params, user, order, base_url)
    return payment.checkout()
  },
  payment_client: new ecpay_payment().payment_client
}