# wx.requestVirtualPayment(Object object)

function compareVersion(_v1, _v2) {
  if (typeof _v1 !== 'string' || typeof _v2 !== 'string') return 0

  const v1 = _v1.split('.')
  const v2 = _v2.split('.')
  const len = Math.max(v1.length, v2.length)

  while (v1.length < len) {
    v1.push('0')
  }
  while (v2.length < len) {
    v2.push('0')
  }

  for (let i = 0; i < len; i++) {
    const num1 = parseInt(v1[i], 10)
    const num2 = parseInt(v2[i], 10)

    if (num1 > num2) {
      return 1
    } else if (num1 < num2) {
      return -1
    }
  }

  return 0
}

const SDKVersion = wx.getSystemInfoSync().SDKVersion

if (compareVersion(SDKVersion, '2.19.2') >= 0 || wx.canIUse('requestVirtualPayment')) {
  wx.requestVirtualPayment({
    signData: JSON.stringify({
      offerId: '123',
      buyQuantity: 1,
      env: 0,
      currencyType: 'CNY',
      productId: 'testproductId',
      goodsPrice: 10,
      outTradeNo: 'xxxxxx',
      attach: 'testdata',
    }),
    paySig: 'd0b8bbccbe109b11549bcfd6602b08711f46600965253a949cd6a2b895152f9d',
    signature: 'd0b8bbccbe109b11549bcfd6602b08711f46600965253a949cd6a2b895152f9d',
    mode: 'short_series_goods',
    success(res) {
      console.log('requestVirtualPayment success', res)
    },
    fail({ errMsg, errCode }) {
      console.error(errMsg, errCode)
    },
  })
} else {
  console.log('当前用户的客户端版本不支持 wx.requestVirtualPayment')
}