added stop loss order type

Author: robcarver17

sysexecution/algos/algo.py

@@ -12,7 +12,7 @@
     brokerOrderType,
     market_order_type,
     limit_order_type,
-    brokerOrder,
+stop_loss_order_type
 )
 from sysexecution.tick_data import tickerObject
 from sysexecution.orders.contract_orders import contractOrder
@@ -105,7 +105,7 @@ def get_and_submit_broker_order_for_contract_order(
         ## We want to preserve these otherwise there is a danger they will dynamically change
         collected_prices = copy(collected_prices)
 
-        if order_type == limit_order_type:
+        if order_type == limit_order_type or order_type==stop_loss_order_type:
             limit_price = self.set_limit_price(
                 contract_order=contract_order,
                 collected_prices=collected_prices,

sysexecution/algos/algo_limit_orders.py

@@ -1,5 +1,6 @@
 from sysexecution.algos.algo import Algo, limit_price_from_input, limit_order_type
 from sysexecution.order_stacks.broker_order_stack import orderWithControls
+from sysexecution.orders.broker_orders import stop_loss_order_type
 
 
 class algoLimit(Algo):
@@ -32,3 +33,26 @@ def manage_trade(
         self, broker_order_with_controls: orderWithControls
     ) -> orderWithControls:
         raise Exception("Limit order shouldn't be managed")
+
+
+class algoStopLoss(algoLimit):
+    """
+    Submit a limit order which is a stop loss
+    """
+
+    def submit_trade(self) -> orderWithControls:
+        contract_order = self.contract_order
+        self.data.log.debug(
+            "Submitting stop loss order for %s, limit price %f"
+            % (str(contract_order), contract_order.limit_price)
+        )
+        broker_order_with_controls = (
+            self.get_and_submit_broker_order_for_contract_order(
+                contract_order,
+                order_type=stop_loss_order_type,
+                input_limit_price=contract_order.limit_price,
+                limit_price_from=limit_price_from_input,
+            )
+        )
+
+        return broker_order_with_controls