concept G22PassiveTradingStrategy extends G22TradingStrategy {

  // A regular expression that will be used to match

  // the "strategy" field coming from TradingView to

  // distinguish this strategy from others on the same coin.

  settableWithVar S tradingViewRegexp;

  // If not 0, ths "PS" comment (position size) coming from

  // TradingView is evaluated.

  // tradingViewPSFactor == 100 => scale $100 in TradingView to our current equity

  // tradingViewPSFactor == 50 => scale $100 in TradingView to 50% of our current equity

  settableWithVar double tradingViewPSFactor;

  // Stop loss percentage assumed for riskPerTrade calculation (0 if not set)

  settableWithVar double assumedStopLoss;

  // If not 0, this is the assumed standard quantity of each

  // trade in the TradingView strategy. Then pyramiding will be

  // done using this value.

  settableWithVar double tradingViewStandardQty;

  // If not 0, positions will be opened proportional to those

  // in the TradingView strategy using this factor.

  // This overrides the other methods of determining position size.

  settableWithVar double tradingViewScalingFactor;

  settable bool remoteOpenable = true;

  settable bool remoteCloseable = true;

  void price(double price) {

    if (currentPrice == price) ret;

    currentPrice = price;

    afterStep(); change();

  }

  bool tradingViewMatch(S text) {

    ret empty(cleanedTradingViewRegexp())

      || safeRegexpFindIC(cleanedTradingViewRegexp(), text);

  }

  S cleanedTradingViewRegexp() {

    ret trim(tradingViewRegexp);

  }

  LS addPassiveTradingStatus(LS list) {

    if (nempty(tradingViewRegexp))

      list.add("TradingView regexp: " + cleanedTradingViewRegexp());

    ret list;

  }

  LS status() {

    ret addPassiveTradingStatus(super.status());

  }

  LS activationStatus() {

    ret addPassiveTradingStatus(super.activationStatus());

  }

  bool hasTradingViewPSFactor() {

    ret isNonZero(tradingViewPSFactor);

  }

}