From 04e4c1a4876be18bf668aab83a4adc7e32ccea21 Mon Sep 17 00:00:00 2001
From: shokollm <270575765+shokollm@users.noreply.github.com>
Date: Thu, 9 Apr 2026 06:58:16 +0000
Subject: [PATCH] fix: validate chain is 'bsc' for BacktestCreate and
 SimulationCreate

---
 src/backend/app/db/schemas.py | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/backend/app/db/schemas.py b/src/backend/app/db/schemas.py
index 051fe49..9a78d90 100644
--- a/src/backend/app/db/schemas.py
+++ b/src/backend/app/db/schemas.py
@@ -1,5 +1,5 @@
-from pydantic import BaseModel, EmailStr
-from typing import Optional, List, Any
+from pydantic import BaseModel, EmailStr, field_validator
+from typing import Optional, List, Any, Dict
 from datetime import datetime
 
 
@@ -69,6 +69,13 @@ class BacktestCreate(BaseModel):
     start_date: str
     end_date: str
 
+    @field_validator("chain")
+    @classmethod
+    def chain_must_be_bsc(cls, v: str) -> str:
+        if v != "bsc":
+            raise ValueError("Phase 1 only supports BSC (bnb chain)")
+        return v
+
 
 class BacktestResponse(BaseModel):
     id: str
@@ -90,6 +97,13 @@ class SimulationCreate(BaseModel):
     check_interval: int = 60
     auto_execute: bool = False
 
+    @field_validator("chain")
+    @classmethod
+    def chain_must_be_bsc(cls, v: str) -> str:
+        if v != "bsc":
+            raise ValueError("Phase 1 only supports BSC (bnb chain)")
+        return v
+
 
 class SimulationResponse(BaseModel):
     id: str
-- 
2.49.1