import { Injectable, OnModuleInit } from '@nestjs/common';
import { ClientGrpc, Client } from '@nestjs/microservices';
import { grpcClientOptions } from './grpc-scene.options';
import { Logger } from '@nestjs/common';
import { DataChannel } from 'node-datachannel';
import * as path from 'path';
import { statSync, createReadStream, readFileSync } from 'fs';
// import { Readable } from 'stream';
import { BehaviorSubject } from 'rxjs';
import * as streamBuffers from 'stream-buffers';
import { ActionType } from './actionType';
import { CacheService } from 'src/cache/cache.service';
import { StreamService } from './stream/stream.service';

const frameMetaReply = {
  traceIds: [],
  vehicle: null,
  newUserStates: [
    {
      userId: 'a2aaaed1fffe6',
      playerState: {
        roomTypeId: '',
        person: 0,
        avatarId: '',
        skinId: '',
        roomId: '',
        isHost: false,
        isFollowHost: false,
        skinDataVersion: '',
        avatarComponents: '',
        nickName: '',
        movingMode: 0,
        attitude: '',
        areaName: '',
        pathName: '',
        pathId: '',
        avatarSize: 1,
        extra: '',
        prioritySync: false,
        player: {
          position: { x: -755, y: -1450, z: -34 },
          angle: { pitch: 0, yaw: 0, roll: 0 },
        },
        camera: {
          position: { x: -1075, y: -1450, z: 86 },
          angle: { pitch: 0, yaw: 0, roll: 0 },
        },
        cameraCenter: { x: -755, y: -1450, z: -34 },
      },
      renderInfo: {
        renderType: 0,
        videoFrame: null,
        cameraStateType: 0,
        isMoving: 0,
        needIfr: 0,
        isVideo: 0,
        stillFrame: 0,
        isRotating: 0,
        isFollowing: 0,
        clientPanoTitlesBitmap: [],
        clientPanoTreceId: '',
        prefetchVideoId: '',
        noMedia: false,
      },
      event: null,
      relation: 1,
    },
  ],
  actionResponses: [],
  getStateType: 0,
  code: 0,
  msg: 'OK',
};
@Injectable()
export class SceneService implements OnModuleInit {
  constructor(
    private cacheService: CacheService,
    private streamService: StreamService,
  ) { }
  @Client(grpcClientOptions) private readonly client: ClientGrpc;
  private sceneGrpcService: SceneGrpcService;

  private logger: Logger = new Logger('SceneService');
  private frameCnt = -1;
  private frameCntInterval = 1000;
  public _frameInteval: NodeJS.Timeout;
  private channel: DataChannel;
  public onSteaming = new BehaviorSubject<boolean>(false);
  public user_id: string;
  public roomId: string;

  onModuleInit() {
    this.sceneGrpcService =
      this.client.getService<SceneGrpcService>('SceneGrpcService');
    this.logger.log('init SceneGrpcService');
  }

  getRoute(request: RouteRequest) {
    return this.sceneGrpcService.getRoute(request);
  }
  getBreakPoint(request: GetBreakPointRequest) {
    return this.sceneGrpcService.getBreakPoint(request);
  }

  test(request: TestRequest) {
    return this.sceneGrpcService.test(request);
  }

  init(request: InitRequest) {
    try {
      const initReply = this.sceneGrpcService.init(request);
      initReply.subscribe((reply) => {
        console.log('initReply', reply);
      });
    } catch (error) {
      console.log('error', error);
    }
  }

  move(request: MoveRequest) {
    return this.sceneGrpcService.move(request);
  }

  rotate(request: RotateRequest) {
    const reply = this.sceneGrpcService.rotate(request);
    console.log('reply', reply);
    reply.subscribe((res) => {
      console.log('rotate-reply', res);
    });
    // console.log('this.frameCnt', this.frameCnt);
    // const stream: StreamFrameType = {
    //   frame: this.frameCnt,
    //   clipPath: path.join(__dirname, '../ws/video/254.h264'),
    //   metaData: JSON.stringify(frameMetaReply),
    // };
    // this.streamService.pushFrameToSteam(stream);
  }

  joystick(request: JoystickRequest) {
    return this.sceneGrpcService.joystick(request);
  }

  handleDataChanelOpen(channel: DataChannel): void {
    this.channel = channel;
    this.streamService.setChannel(channel);
    this.handleStartCountingFrame();
    this.onSteaming.next(true);
  }

  handleDataChanelClose(): void {
    this.stopCountingFrame();
    this.onSteaming.next(false);
    this.streamService.closeChannel();
  }

  handleMessage(message: string | Buffer) {
    try {
      if (typeof message === 'string') {
        const msg: RTCMessageRequest = JSON.parse(message);
        switch (msg.action_type) {
          case ActionType.rotate:
            console.log('rotate', msg);
            const rotateRequest: RotateRequest = msg;
            this.rotate(rotateRequest);
            break;
          case ActionType.userStatus:
            this.updateUserStatus();
            break;
          case ActionType.status:
            this.updateStatus();
            break;
          default:
            break;
        }
      }
      // console.log('get rtc message', message);
    } catch (error) {
      this.logger.error('handleMessage:rtc', error);
    }
  }
  updateStatus() {
    const reply = {
      data: { action_type: 1009, echo_msg: { echoMsg: '1652857098550' } },
      track: false,
    };
    this.streamService.pushNormalDataToStream(reply);
  }

  updateUserStatus() {
    const reply = {
      actionType: 1024,
      pointType: 100,
      extra: '',
      traceId: '65db8e1b-2261-42eb-8bc5-8dc97bfe0b0e',
      packetId: '',
      nps: [],
      peopleNum: 0,
      zoneId: '',
      echoMsg: '',
      reserveDetail: null,
      userWithAvatarList: [],
      newUserStates: [
        {
          userId: 'e497b92704f5a',
          playerState: {
            roomTypeId: '',
            person: 0,
            avatarId: 'KGe_Boy',
            skinId: '10089',
            roomId: 'e629ef3e-022d-4e64-8654-703bb96410eb',
            isHost: false,
            isFollowHost: false,
            skinDataVersion: '1008900008',
            avatarComponents: '',
            nickName: 'e497b92704f5a',
            movingMode: 0,
            attitude: 'walk',
            areaName: '',
            pathName: 'thirdwalk',
            pathId: 'thirdwalk',
            avatarSize: 1,
            extra: '{"removeWhenDisconnected":true}',
            prioritySync: false,
            avatarURL: '',
            micStatus: 0,
            player: {
              position: { x: -755, y: -1450, z: -34 },
              angle: { pitch: 0, yaw: 0, roll: 0 },
            },
            camera: null,
            cameraCenter: null,
          },
          renderInfo: {
            renderType: 0,
            videoFrame: null,
            cameraStateType: 0,
            isMoving: 0,
            needIfr: 0,
            isVideo: 0,
            stillFrame: 0,
            isRotating: 0,
            isFollowing: 0,
            clientPanoTitlesBitmap: [],
            clientPanoTreceId: '',
            prefetchVideoId: '',
            noMedia: false,
          },
          event: {
            id: '',
            type: 0,
            points: [],
            rotateEvent: null,
            removeVisitorEvent: null,
          },
          relation: 0,
        },
      ],
      code: 0,
      msg: '',
    };
    this.streamService.pushNormalDataToStream(reply);
  }
  handleStartCountingFrame() {
    this._frameInteval = setInterval(async () => {
      this.frameCnt += 1;
      try {
        if (this.frameCnt === 1) {
          // this.pushTheFirstFrame();
          const stream: StreamFrameType = {
            frame: 1,
            clipPath: path.join(__dirname, '../ws/video/254.h264'),
            metaData: JSON.stringify(frameMetaReply),
          };
          this.streamService.pushFrameToSteam(stream);
        }

        // console.log('11', await this.redisService.get('test'));
        // console.log('data', data);
        if (this.frameCnt > 1) {
          const streamMeta: StreamMetaType = {
            frame: this.frameCnt,
            metaData: JSON.stringify(frameMetaReply),
          };
          this.streamService.pushMetaDataToSteam(streamMeta);
        }

      } catch (error) {
        console.log('error', error);
      }
    }, this.frameCntInterval);
  }

  stopCountingFrame(): void {
    clearInterval(this._frameInteval);
    this.frameCnt = -1;
  }
  // 首屏渲染
  // pushTheFirstFrame() {
  //   const chunk_size = 16000;
  //   const block = 36;
  //   console.log('首屏--数据');
  //   const paths = path.join(__dirname, '../ws/video');
  //   // const clipPath = paths + `/1.v2.h264`;
  //   const testClipPath = paths + `/2.h264`;
  //   const metaData = {
  //     traceIds: [],
  //     vehicle: null,
  //     newUserStates: [
  //       {
  //         userId: '1e3fa84d5c29a',
  //         playerState: {
  //           roomTypeId: '',
  //           person: 0,
  //           avatarId: 'KGe_Boy',
  //           skinId: '10089',
  //           roomId: '',
  //           isHost: false,
  //           isFollowHost: false,
  //           skinDataVersion: '1008900008',
  //           avatarComponents: '',
  //           nickName: '1e3fa84d5c29a',
  //           movingMode: 0,
  //           attitude: 'walk',
  //           areaName: 'LQC',
  //           pathName: 'thirdwalk',
  //           pathId: 'thirdwalk',
  //           avatarSize: 1,
  //           extra: '{"removeWhenDisconnected":true}',
  //           prioritySync: false,
  //           player: {
  //             position: { x: -755, y: -1450, z: -34 },
  //             angle: { pitch: 0, yaw: 0, roll: 0 },
  //           },
  //           camera: {
  //             position: { x: -1075, y: -1450, z: 86 },
  //             angle: { pitch: 0, yaw: 0, roll: 0 },
  //           },
  //           cameraCenter: null,
  //         },
  //         renderInfo: {
  //           renderType: 0,
  //           videoFrame: null,
  //           cameraStateType: 0,
  //           isMoving: 0,
  //           needIfr: 0,
  //           isVideo: 0,
  //           stillFrame: 0,
  //           isRotating: 0,
  //           isFollowing: 0,
  //           clientPanoTitlesBitmap: [],
  //           clientPanoTreceId: '',
  //           prefetchVideoId: '',
  //           noMedia: false,
  //         },
  //         event: {
  //           id: '',
  //           type: 0,
  //           points: [],
  //           rotateEvent: null,
  //           removeVisitorEvent: null,
  //         },
  //         relation: 1,
  //       },
  //     ],
  //     actionResponses: [],
  //     getStateType: 0,
  //     code: 0,
  //     msg: 'OK',
  //   };
  //   const metaDataString = JSON.stringify(metaData).replace(/\s/g, '');

  //   const coordBuff = Buffer.from(metaDataString, 'utf-8');

  //   console.warn('coordBuff', coordBuff.byteLength);

  //   // const steamStat = statSync(clipPath);

  //   // const steamTotalSize = metaData.length + steamStat.size;
  //   const clipBuffer = readFileSync(testClipPath);
  //   // console.log('clipBuffer', clipBuffer);
  //   // const fullBufferList = Buffer.concat([coordBuff, clipBuffer]);

  //   // const steam = createReadStream(clipPath, {
  //   //   highWaterMark: chunk_size - block,
  //   // });

  //   // console.log('fullBufferList', fullBufferList);

  //   // const steam1 = createReadStream(fullBufferList.toString(), {
  //   //   highWaterMark: chunk_size - block,
  //   // });
  //   const steam = new streamBuffers.ReadableStreamBuffer({
  //     frequency: 1, // in milliseconds.
  //     chunkSize: chunk_size - block, // in bytes.
  //   });
  //   steam.put(coordBuff);
  //   steam.put(clipBuffer);

  //   let steamByteLength = 0;

  //   steam.on('data', (data: Buffer) => {
  //     // console.log('data', data, data.byteLength);
  //     // console.log('data-size', data);
  //     const blockBuffStart = Buffer.alloc(block);

  //     const packBuffer = Buffer.concat([blockBuffStart, data]);

  //     // const isLastFrame = packBuffer.byteLength - chunk_size < 0;
  //     // console.log('packBuffer', packBuffer.byteLength);
  //     // if (isLastFrame) {
  //     //   // last frame
  //     //   packBuffer = Buffer.concat([packBuffer, coordBuff]);
  //     //   console.log('last frame', packBuffer.byteLength);
  //     // }

  //     const framePack = new DataView(
  //       packBuffer.buffer.slice(
  //         packBuffer.byteOffset,
  //         packBuffer.byteOffset + packBuffer.byteLength,
  //       ),
  //     );

  //     // 16 bit slot
  //     // framePack.setUint32(4)
  //     framePack.setUint16(6, block);
  //     framePack.setUint16(8, 1); // first render cnt
  //     framePack.setUint16(10, 1); // isDIR
  //     framePack.setUint16(24, 0);
  //     framePack.setUint16(26, 0);

  //     // 32 bit slot
  //     // statusPack.setUint32(12, buff.byteLength);
  //     // console.log('metaLen', coordBuff.byteLength);
  //     // console.log('metaLen', clipBuffer.byteLength);

  //     framePack.setUint32(0, 1437227610);
  //     framePack.setUint32(12, coordBuff.byteLength); // metaLen
  //     framePack.setUint32(16, clipBuffer.byteLength); // mediaLen
  //     framePack.setUint32(20, 754871824); //server_time
  //     framePack.setUint32(24, 0);
  //     framePack.setUint32(28, 0);
  //     framePack.setUint32(block - 4, steamByteLength);

  //     // console.log('statusPack', statusPack);
  //     if (this.channel && this.channel.isOpen()) {
  //       this.channel.sendMessageBinary(Buffer.from(framePack.buffer));
  //     }
  //     steamByteLength += data.byteLength;
  //   });
  //   steam.on('end', () => {
  //     steamByteLength = 0;
  //     // this.onSteaming = false;
  //   });
  // }
}