[Backtesting] allow custom exchange type

[Backtesting] improve allow custom exchange type


Auto stash before checking out "origin/master"

Author: techfreaque

octobot/backtesting/independent_backtesting.py

@@ -65,6 +65,12 @@ def __init__(self, config,
         self.optimizer_id = None
         self.backtesting_id = None
         self._init_default_config_values()
+        try:
+            self.backtesting_config[common_constants.CONFIG_EXCHANGE_TYPE] \
+                = config[common_constants.CONFIG_EXCHANGE_TYPE]
+        except KeyError:
+            self.backtesting_config[common_constants.CONFIG_EXCHANGE_TYPE] \
+                = common_constants.CONFIG_EXCHANGE_CURRENT_PROFILE
         self.stopped = False
         self.stopped_event = None
         self.post_backtesting_task = None

octobot/backtesting/octobot_backtesting.py

@@ -217,6 +217,24 @@ async def _create_service_feeds(self):
                                   f"might not work properly")
 
     async def _init_exchanges(self):
+        if self.backtesting_config[commons_constants.CONFIG_EXCHANGE_TYPE] \
+                != commons_constants.CONFIG_EXCHANGE_CURRENT_PROFILE:
+            for exchange in self.exchange_type_by_exchange:
+                if self.backtesting_config[commons_constants.CONFIG_EXCHANGE_TYPE] \
+                        == trading_enums.ExchangeTypes.SPOT.value:
+                    self.exchange_type_by_exchange[exchange] = commons_constants.CONFIG_EXCHANGE_SPOT
+                elif self.backtesting_config[commons_constants.CONFIG_EXCHANGE_TYPE] \
+                        == trading_enums.FutureContractType.INVERSE_PERPETUAL.value:
+                    self.exchange_type_by_exchange[exchange] = commons_constants.CONFIG_EXCHANGE_FUTURE
+                    self.futures_contract_type = trading_enums.FutureContractType.INVERSE_PERPETUAL
+                elif self.backtesting_config[commons_constants.CONFIG_EXCHANGE_TYPE] \
+                        == trading_enums.FutureContractType.LINEAR_PERPETUAL.value:
+                    self.exchange_type_by_exchange[exchange] = commons_constants.CONFIG_EXCHANGE_FUTURE
+                    self.futures_contract_type = trading_enums.FutureContractType.LINEAR_PERPETUAL
+                elif self.backtesting_config[commons_constants.CONFIG_EXCHANGE_TYPE] \
+                        == trading_enums.ExchangeTypes.MARGIN.value:
+                    self.exchange_type_by_exchange[exchange] = commons_constants.CONFIG_EXCHANGE_MARGIN
+
         self.backtesting = await backtesting_api.initialize_backtesting(self.backtesting_config,
                                                                         exchange_ids=self.exchange_manager_ids,
                                                                         matrix_id=self.matrix_id,