import Vnmf from '../../index'

declare module '../../index' {
  interface VideoDecoder {
    /** Get the next frame decoding data
     * @supported weapp
     * @see https://developers.weixin.qq.com/miniprogram/dev/api/media/video-decoder/VideoDecoder.getFrameData.html
     */
    getFrameData(): Promise<VideoDecoder.getFrameData.Result>
    /** Disable listening events
     * @supported weapp
     * @see https://developers.weixin.qq.com/miniprogram/dev/api/media/video-decoder/VideoDecoder.off.html
     */
    off(
      /** Event Name */
      eventName: keyof VideoDecoder.on.EventName,
      /** The echo function performed on event trigger */
      callback: VideoDecoder.on.Callback
    ): void
    /** Recall function to register listener events
     * @supported weapp
     * @see https://developers.weixin.qq.com/miniprogram/dev/api/media/video-decoder/VideoDecoder.on.html
     */
    on(
      /** Event Name */
      eventName: keyof VideoDecoder.on.EventName,
      /** The echo function performed on event trigger */
      callback: VideoDecoder.on.Callback
    ): void
    /** Remove Decoder
     * @supported weapp
     * @see https://developers.weixin.qq.com/miniprogram/dev/api/media/video-decoder/VideoDecoder.remove.html
     */
    remove(): Promise<void>
    /** Jump to decode at some point
     * @supported weapp
     * @see https://developers.weixin.qq.com/miniprogram/dev/api/media/video-decoder/VideoDecoder.seek.html
     */
    seek(
      /** The decoding position of the jump，Units ms */
      position: number
    ): Promise<void>
    /** Decoding started.
     * @supported weapp
     * @see https://developers.weixin.qq.com/miniprogram/dev/api/media/video-decoder/VideoDecoder.start.html
     */
    start(option: VideoDecoder.start.Option): Promise<void>
    /** Stop decoding
     * @supported weapp
     * @see https://developers.weixin.qq.com/miniprogram/dev/api/media/video-decoder/VideoDecoder.stop.html
     */
    stop(): Promise<void>
  }

  namespace VideoDecoder {
    namespace getFrameData {
      interface Result {
        /** Frame Data Width */
        width: number
        /** Frame Data Height */
        height: number
        /** Frame Data */
        data: ArrayBuffer
        /** Frame Raw pts */
        pkPts: number
        /** Frame Raw dts */
        pkDts: number
      }
    }
    namespace on {
      /** eventName Legal value [v] */
      interface EventName {
        /** Start Event。Back {width, height} */
        start 
        /** End of Event。 */
        stop
        /** seek Completed Events。 */
        seek
        /** Change in the buffer zone incidents。 */
        bufferchange
        /** Decoding End Event。 */
        ended
      }
      /** The echo function performed on event trigger */
      type Callback = (res?: {
        width: number
        height: number
      }) => void
    }
    namespace start {
      interface Option {
        /** Video source file required to decode。 */
        source: string 
        /** Decoding Mode。0：Press pts Decoding；1：Decode as fast you can.
         * @default 1
         */
        mode?: number
        /** Do you not need an audio track?
         * @default false
         */
        abortAudio?: boolean
        /** Do you not need a video track?
         * @default false
         */
        abortVideo?: boolean
      }
    }
  }

  interface VnmfStatic {
    /** Create a video decoder，A frame-by-frame access to decoded data
     * @supported weapp
     * @see https://developers.weixin.qq.com/miniprogram/dev/api/media/video-decoder/wx.createVideoDecoder.html
     */
    createVideoDecoder(): VideoDecoder
  }
}