persistable sclass LivePullbackToProfitAnalysis {
  settable double pullbackLimit = 1.0;
  settable double adversity = 0.2;
  settable boolean isShort;
  settable long startTime;
  settable double openingPrice;
  settable double crest = 0;
  settable double maxPullback;
  settable PullbackToProfit ptp;
  
  double priceToProfit(double price) {
    var profit = asPercentIncrease(price, openingPrice());
    if (isShort()) profit = neg(profit);
    ret profit-adversity();
  }
  
  void add aka feed(PricePoint pp) {
    if (startTime == 0) {
      startTime(pp.time());
      openingPrice(pp.price());
    }
    
    var price = pp.price();
    var time = pp.time();
    var profit = priceToProfit(price);
            
    crest = max(crest, profit);
    var pullback = crest-profit;
    maxPullback = max(maxPullback, pullback);
      
    if (done()) ret;
      
    var result = new PullbackToProfit().pullback(maxPullback).profit(crest-maxPullback);
      
    if (ptp == null || !ptp.replaces(result))
      ptp(result
        .isShort(isShort)
        .timestamp(time)
        .startTime(startTime()));
  }
  
  double cleanness() {
    ret ptp == null ? 0 : ptp.cleanness();
  }
  
  double profit() {
    ret ptp == null ? negativeInfinity() : ptp.profit();
  }
  
  bool done() {
    ret maxPullback >= pullbackLimit();
  }
  
  toString { ret ptp == null ? "Unstarted PTP analysis" : str(ptp); }
}