Merge pull request #7647 from freqtrade/combine_stop

Combine stop logic

freqtrade/exchange/exchange.py

@@ -1076,7 +1076,14 @@ class Exchange:
         Verify stop_loss against stoploss-order value (limit or price)
         Returns True if adjustment is necessary.
         """
-        raise OperationalException(f"stoploss is not implemented for {self.name}.")
+        if not self._ft_has.get('stoploss_on_exchange'):
+            raise OperationalException(f"stoploss is not implemented for {self.name}.")
+
+        return (
+            order.get('stopPrice', None) is None
+            or ((side == "sell" and stop_loss > float(order['stopPrice'])) or
+                (side == "buy" and stop_loss < float(order['stopPrice'])))
+        )
 
     def _get_stop_order_type(self, user_order_type) -> Tuple[str, str]:
 
@@ -1106,7 +1113,7 @@ class Exchange:
                 'In stoploss limit order, stop price should be more than limit price')
         return limit_rate
 
-    def _get_stop_params(self, ordertype: str, stop_price: float) -> Dict:
+    def _get_stop_params(self, side: BuySell, ordertype: str, stop_price: float) -> Dict:
         params = self._params.copy()
         # Verify if stopPrice works for your exchange!
         params.update({'stopPrice': stop_price})
@@ -1155,7 +1162,8 @@ class Exchange:
             return dry_order
 
         try:
-            params = self._get_stop_params(ordertype=ordertype, stop_price=stop_price_norm)
+            params = self._get_stop_params(side=side, ordertype=ordertype,
+                                           stop_price=stop_price_norm)
             if self.trading_mode == TradingMode.FUTURES:
                 params['reduceOnly'] = True