export default class VideoWithInterlock{
  constructor(video,reasons){
    this.video=video;
    this.reasons=reasons;
    this.reasons.push("user");
    this.interlocks={};
    for(let reason of this.reasons){
      this.interlocks[reason]=false;
    }
    this.interlocks["user"]=true;

  }
  pause(reason="user"){
    this.onChangeLock(reason,true);
  }
  play(reason="user"){
    this.onChangeLock(reason,false);
  }
  get isAnyLock(){
    return this.reasons
      .map((reason)=>this.interlocks[reason])
      .reduce((a,b)=>a||b);
  }
  onChangeLock(reason,isLock){
    let previousIsAnyLock=this.isAnyLock;
    this.interlocks[reason]=isLock;
    let isAnyLock=this.isAnyLock;
    if(previousIsAnyLock!=isAnyLock){
      if(isAnyLock){
        this.video.pause();
      }else{
        this.video.play();
      }
    }

  }
  get readyState(){
    return this.video.readyState;
  }
  get currentTime(){
    return this.video.currentTime;
  }
  set currentTime(currentTime){
    this.video.currentTime=currentTime;
  }
}