const fetch = require('node-fetch')
const FormData = require('form-data')
const { createReadStream } = require('fs')

const ROBOT_ID = 'cli_a13ad2afa438d00b'
const ROBOT_ST = '4tK9LY9VbiQlY5umhE42dclBFo6t4p5O'
const ROBOT_URL = 'https://open.feishu.cn/open-apis/bot/v2/hook/4a877590-334e-4212-9198-25e7768c64f9'
const IMG_UPLOAD_URL = 'https://open.feishu.cn/open-apis/im/v1/images'
const GET_ACCESS_TOKEN_URL = 'https://open.feishu.cn/open-apis/auth/v3/app_access_token/internal'

async function getAccessToken() {
  const body = {
    app_id: ROBOT_ID,
    app_secret: ROBOT_ST
  }

  const response = await fetch(GET_ACCESS_TOKEN_URL, {
    method: 'post',
    body: JSON.stringify(body),
    headers: {'Content-Type': 'application/json'}
  })

  return await response.json()
}

async function uploadQr(access_token, imgPath) {
  const formData = new FormData()
  const file = createReadStream(imgPath)
  formData.append('image', file)
  formData.append('image_type', 'message')

  const response = await fetch(IMG_UPLOAD_URL, {
    method: 'post',
    headers: {
      authorization: `Bearer ${access_token}`
    },
    body: formData
  })

  return await response.json()
}

async function sendQrToFeishu(image_key, desc) {
  const schema = {
    msg_type: 'post',
    content: {
        post: {
            zh_cn: {
                title: '小程序预览二维码',
                content: [
                    [
                        {
                            tag: 'img',
                            image_key: image_key
                        }
                    ],
                    [
                        {
                            tag: 'text',
                            text: desc
                        }
                    ]
                ]
            }
        }
    }
  }

  const response = await fetch(ROBOT_URL, {
    method: 'post',
    headers: {'Content-Type': 'application/json'},
    body: JSON.stringify(schema),
  })

  return await response.json()
}

function PostPreViewQr(ctx) {
  ctx.register({
    name: 'onPreviewComplete',
    fn: ({ success, data, error }) => {
    //   console.log('接收预览后数据', success, data, error)
      if (success) {
        const { qrCodeLocalPath } = data
        getAccessToken().then((res: any) => {
          const { code, tenant_access_token, msg } = res
        
          if (code !== 0)
            return Promise.reject({ code, msg })
        
          return tenant_access_token
        }).then(res => uploadQr(res, qrCodeLocalPath))
        .then((res: any) => {
          const { code , data, msg } = res
        
          if (code !== 0)
            return Promise.reject({ code , msg })
        
          const { image_key } = data
        
          return sendQrToFeishu(image_key, '票圈极速+')
        
        }).catch(err => {
          console.error(err)
        })
      }

    }
  })
}

export default PostPreViewQr