// 详见 ./server/src/controllers/file.ts => function reverseVoice
import ffmpegPath from '@ffmpeg-installer/ffmpeg'
import ffprobePath from '@ffprobe-installer/ffprobe'
import ffmpeg from 'fluent-ffmpeg'
ffmpeg.setFfprobePath(ffprobePath.path)
ffmpeg.setFfmpegPath(ffmpegPath.path)

ffmpeg(filepath)
    .format('mp4')
    // 反转
    .outputOptions([
      '-vf reverse',
      '-af areverse',
      '-preset',
      'superfast',
      '-y',
    ])
    .on('progress', (progress) => {
      // send upload progress
      console.log('upload-file-progress', progress.percent)
    })
    .on('error', (err) => {
      console.log(`Ffmpeg has been killed${err.message}`)
    })
    .toFormat('mp3')
    // 保存
    .save(publicPath + saveFilePath)
    .on('end', () => {
      // 获取音频信息（时长等）
      ffmpeg.ffprobe(publicPath + saveFilePath, (err, metadata) => {
        console.log(metadata.format.duration)
      })
    })

// 画图
const draw = async () => {
  // 绘制之前 loading
  Taro.showLoading({
    title: '海报生成中...',
    mask: true,
  })
  // 获取图片信息
  const [productImgInfo, qrcodeImgInfo] = await Promise.all([
    this.getImageInfo(sharePoster), // 获取主图
    this.getQrImgInfo(), // 获取二维码图片
  ])

  // product image 宽高
  const pW = CANVAS_WIDTH
  const pH = (pW / productImgInfo.width) * productImgInfo.height

  // canvas 高度
  let canvasHeight = pH

  const ctx = Taro.createCanvasContext('canvas', null)

  ctx.fillStyle = '#fff'
  ctx.fillRect(0, 0, CANVAS_WIDTH, canvasHeight)

  // 绘制背景图片
  ctx.drawImage(sharePoster, 0, 0, pW, pH)

  // 绘制二维码 （因为有角度，需要旋转画布，再旋转回来）
  ctx.rotate(-Math.PI / 32)
  ctx.translate(-25 * ratio, 10 * ratio)
  ctx.drawImage(qrcodeImgInfo.path, QR_LEFT, QR_TOP, QR_WIDTH, QR_WIDTH)
  ctx.rotate(Math.PI / 32)
  this.setState({
    canvasStyle: {
      ...this.state.canvasStyle,
      height: canvasHeight,
    },
  })
  ctx.stroke()
  setTimeout(() => {
    Taro.hideLoading()
    ctx.draw()
  }, 500)
}

// 微信小程序每个页面几乎都需要配置分享的参数，并且需要动态更改分享参数
// 所以抽离 HOC 组件，方便页面使用
import { ComponentClass } from 'react'

import Taro from '@tarojs/taro'
import { connect } from '@tarojs/redux';
import defaultShareImg from '@/assets/images/share.png'

type Options = {
  title?: string
  imageUrl?: string
  path?: string
}

const defalutOptions: Options = {
  title: '你能听懂我说啥么？最近很火的反转录音来啦~',
  imageUrl: defaultShareImg,
  path: 'pages/index/index',
}

function withShare() {
  return function demoComponent(Component: ComponentClass) {
    @connect(({ user }) => ({
      userInfo: user.userInfo
    }))
    class WithShare extends Component {
      $shareOptions?: Options
      async componentWillMount() {
        Taro.showShareMenu({
          withShareTicket: true,
        })

        if (super.componentWillMount) {
          super.componentWillMount()
        }
      }

      // 点击分享的那一刻会进行调用
      onShareAppMessage() {
        // const sharePath = `${path}&shareFromUser=${userInfo.shareId}`
        let options = defalutOptions
        if (this.$shareOptions) {
          options = {
            ...defalutOptions,
            ...this.$shareOptions,
          }
        }
        return options
      }

      render() {
        return super.render()
      }
    }

    return WithShare
  }
}

export default withShare

@withShare()
class Room extends Component {
  /**
 * 指定config的类型声明为: Taro.Config
 *
 * 由于 typescript 对于 object 类型推导只能推出 Key 的基本类型
 * 对于像 navigationBarTextStyle: 'black' 这样的推导出的类型是 string
 * 提示和声明 navigationBarTextStyle: 'black' | 'white' 类型冲突, 需要显示声明类型
 */
  config: Config = {
    navigationBarTitleText: '首页',
  }

  $shareOptions = {
    title: '倒放挑战！你能听懂我倒立洗头~',
    path: 'pages/index/index',
    imageUrl: '',
  }

  /**
    ....
  */
}