Implement check risk function

core/trading/risk.py

@@ -44,3 +44,35 @@ def check_max_open_trades_per_symbol(risk_model, account_trades):
         if count >= risk_model.max_open_trades_per_symbol:
             return False
     return True
+
+
+def check_risk(risk_model, account, proposed_trade):
+    """
+    Run the risk checks on the account and the proposed trade.
+    """
+    # Check that the max loss is not exceeded
+    max_loss_check = check_max_loss(
+        risk_model, account.initial_balance, account.client.get_balance()
+    )
+    if not max_loss_check:
+        return {"allowed": False, "reason": "Maximum loss exceeded."}
+
+    # Check that the account max trades is not exceeded
+    account_trades = account.client.get_all_open_trades()  # TODO
+    account_trades.append(proposed_trade)  # TODO
+
+    max_open_trades_check = check_max_open_trades(risk_model, account_trades)
+    if not max_open_trades_check:
+        return {"allowed": False, "reason": "Maximum open trades exceeded."}
+
+    # Check that the max trades per symbol is not exceeded
+    max_open_trades_per_symbol_check = check_max_open_trades_per_symbol(
+        risk_model, account_trades
+    )
+    if not max_open_trades_per_symbol_check:
+        return {"allowed": False, "reason": "Maximum open trades per symbol exceeded."}
+
+    # Check that the max risk is not exceeded
+    max_risk_check = check_max_risk(risk_model, account_trades)
+    if not max_risk_check:
+        return {"allowed": False, "reason": "Maximum risk exceeded."}