feat: add liquidation_price update support for cross mode

freqtrade/freqtradebot.py

@@ -2157,6 +2157,45 @@ class FreqtradeBot(LoggingMixin):
     # Common update trade state methods
     #
 
+    def update_liquidation_prices(self, trade: Optional[Trade] = None):
+        """
+        Update trade liquidation price in isolated margin mode.
+        Updates liquidation price for all trades in cross margin mode.
+        TODO: this is missing a dedicated test!
+        """
+        total_wallet_stake = 0.0
+        if self.config["dry_run"] and self.exchange.margin_mode == MarginMode.CROSS:
+            # Parameters only needed for cross margin
+            total_wallet_stake = self.wallets.get_total(self.config["stake_currency"])
+
+        if self.exchange.margin_mode == MarginMode.CROSS:
+            logger.info("Updating liquidation price for all open trades.")
+            for t in Trade.get_open_trades():
+                # TODO: This should be done in a batch update
+                t.set_liquidation_price(
+                    self.exchange.get_liquidation_price(
+                        pair=t.pair,
+                        open_rate=t.open_rate,
+                        is_short=t.is_short,
+                        amount=t.amount,
+                        stake_amount=t.stake_amount,
+                        leverage=trade.leverage,
+                        wallet_balance=total_wallet_stake,
+                    )
+                )
+        elif trade:
+            trade.set_liquidation_price(
+                self.exchange.get_liquidation_price(
+                    pair=trade.pair,
+                    open_rate=trade.open_rate,
+                    is_short=trade.is_short,
+                    amount=trade.amount,
+                    stake_amount=trade.stake_amount,
+                    leverage=trade.leverage,
+                    wallet_balance=trade.stake_amount,
+                )
+            )
+
     def update_trade_state(
         self,
         trade: Trade,
@@ -2234,17 +2273,7 @@ class FreqtradeBot(LoggingMixin):
                 # TODO: Margin will need to use interest_rate as well.
                 # interest_rate = self.exchange.get_interest_rate()
                 try:
-                    trade.set_liquidation_price(
+                    self.update_liquidation_prices(trade)
-                        self.exchange.get_liquidation_price(
-                            pair=trade.pair,
-                            open_rate=trade.open_rate,
-                            is_short=trade.is_short,
-                            amount=trade.amount,
-                            stake_amount=trade.stake_amount,
-                            leverage=trade.leverage,
-                            wallet_balance=trade.stake_amount,
-                        )
-                    )
                 except DependencyException:
                     logger.warning("Unable to calculate liquidation price")
                 if self.strategy.use_custom_stoploss: