/* eslint-disable */
import { PCMPlayer } from "./pcm-player";
import { WebGLPlayer } from "./webgl";

export function Player() {
  this.hPlayer = 0;
  this.PlayOrPause = 0;
  this.MediaName = null;
  this.isStream = false;
  this.canvas = null;
  this.timeLabel = null;
  this.timeTrack = null;
  this.CurPos = 0;
  this.displayDuration = "00:00:00";

  this.pcmPlayer = null;
  this.webglPlayer = null;

  this.trackTimer = null;
  this.loop = false;
  this.preload = true;
  this.preloadFlag = 0;
  this.statusCallback = (stat) => {
    console.log(stat);
  };
}

Player.prototype.play = function (
  url,
  canvas,
  isStream,
  timeTrack,
  timeLabel,
  payload
) {
  if (this.hPlayer != 0) return;

  this.MediaName = url;

  this.isStream = isStream;

  this.canvas = canvas; //hWnd

  this.timeTrack = timeTrack;
  this.timeLabel = timeLabel;

  var This = this;
  this.timeTrack.oninput = function () {
    This.seek(This.timeTrack.value);
  };

  this.TurboWorker = new Worker("/libs/wasmPlayer/turbo.js");
  this.hPlayer = 1;
  this.PlayOrPause = 1;

  this.TurboWorker.onmessage = function (evt) {
    switch (evt.data.command) {
      case "initialized": {
        This.TurboWorker.postMessage({
          command: "play",
          media_name: url,
          other: isStream,
          payload: payload,
        });
        break;
      }
      case "create_video": {
        This.VideoParam = evt.data.param; //{duration:xxx,width:xxx,height:xxx}
        This.webglPlayer = new WebGLPlayer(This.canvas);
        if (This.timeTrack) {
          This.timeTrack.min = 0;
          This.timeTrack.max = This.VideoParam.duration;
          This.timeTrack.value = 0;
          This.displayDuration = This.formatTime(
            This.VideoParam.duration / 1000
          );
        }
        This.startTrackTimer();

        This.statusCallback(0);
        break;
      }
      case "create_audio": {
        This.AudioParam = evt.data.param; //{channel:Channel,sample_rate:SampleRate}
        This.pcmPlayer = new PCMPlayer({
          encoding: "16bitInt",
          channels: This.AudioParam.channel,
          sampleRate: This.AudioParam.sample_rate,
          flushingTime: 5000,
        });

        This.statusCallback(1);
        break;
      }
      case "deliver_video": {
        if (!This.isStream && This.preload && This.preloadFlag == 0) {
          This.preloadFlag = 1;
          This.pause();
          This.statusCallback(0);
        }

        //sample:{time_stamp:xxx,data:xxx}
        This.CurPos = evt.data.sample.time_stamp;
        This.webglPlayer.renderFrame(
          evt.data.sample.buf,
          This.VideoParam.width,
          This.VideoParam.height
        );
        break;
      }
      case "deliver_audio": {
        //sample:{time_stamp:xxx,data:xxx}
        This.pcmPlayer.play(evt.data.sample.buf);
        break;
      }
      case "play_failed": {
        This.statusCallback(-1);
        This.stop();
        break;
      }
      case "play_end": {
        if (This.loop) {
          This.seek(0);
        }
        break;
      }

      default:
        return;
    }
  };
};

Player.prototype.pause = function () {
  if (this.hPlayer == 0 || this.PlayOrPause == 0) return;
  this.PlayOrPause = 0;
  this.TurboWorker.postMessage({ command: "pause" });
};

Player.prototype.resume = function () {
  if (this.hPlayer == 0 || this.PlayOrPause == 1) return;
  this.PlayOrPause = 1;
  this.TurboWorker.postMessage({ command: "resume" });
};

Player.prototype.stop = function () {
  if (this.hPlayer == 0) return;
  this.hPlayer = 0;
  this.TurboWorker.postMessage({ command: "stop" });
  this.stopTrackTimer();
  if (this.pcmPlayer) {
    this.pcmPlayer.destroy();
    this.pcmPlayer = null;
  }
  //webglPlayer?
};

Player.prototype.seek = function (ms) {
  if (this.hPlayer == 0) return;
  this.TurboWorker.postMessage({ command: "seek", pos: ms });

  if (this.pcmPlayer != null) {
    this.pcmPlayer.destroy();
    this.pcmPlayer = new PCMPlayer({
      encoding: "16bitInt",
      channels: this.AudioParam.channel,
      sampleRate: this.AudioParam.sample_rate,
      flushingTime: 5000,
    });
  }
};

Player.prototype.fullscreen = function () {
  if (this.webglPlayer) this.webglPlayer.fullscreen();
};

Player.prototype.exitfullscreen = function () {
  if (this.webglPlayer) this.webglPlayer.exitfullscreen();
};

Player.prototype.startTrackTimer = function () {
  var This = this;
  this.trackTimer = setInterval(function () {
    if (This.timeTrack) This.timeTrack.value = This.CurPos;

    if (This.timeLabel)
      This.timeLabel.innerHTML =
        This.formatTime(This.CurPos / 1000) + "/" + This.displayDuration;
  }, 500);
};

Player.prototype.stopTrackTimer = function () {
  if (this.trackTimer != null) {
    clearInterval(this.trackTimer);
    this.trackTimer = null;
  }
};

Player.prototype.formatTime = function (s) {
  var h =
    Math.floor(s / 3600) < 10
      ? "0" + Math.floor(s / 3600)
      : Math.floor(s / 3600);
  var m =
    Math.floor((s / 60) % 60) < 10
      ? "0" + Math.floor((s / 60) % 60)
      : Math.floor((s / 60) % 60);
  var s =
    Math.floor(s % 60) < 10 ? "0" + Math.floor(s % 60) : Math.floor(s % 60);

  return h + ":" + m + ":" + s;
};