/** Local practice budget only. Published benchmark data are never written here. */
export class PracticeBudget {
  actions=0;
  private started:number;
  private endElapsed:number|null=null;
  private end='';
  private now:()=>number;
  constructor(now:()=>number=()=>performance.now()){this.now=now;this.started=now();}
  elapsed(){return this.endElapsed??Math.max(0,(this.now()-this.started)/1000);}
  remaining(){return Math.max(0,720-this.elapsed());}
  ending(){
    if(!this.end&&this.elapsed()>=720)this.finish('time_budget',720);
    return this.end;
  }
  recordAction(completedLevels:number){
    if(this.ending())return false;
    this.actions++;
    // A sixth verified level completes the curriculum, including on action 512.
    if(completedLevels>=6)this.finish('won');
    else if(this.actions>=512)this.finish('action_budget');
    return true;
  }
  private finish(status:string,elapsed=this.elapsed()){this.end=status;this.endElapsed=elapsed;}
}