fix: _get_strategy_trade_stats 兼容旧数据(strategy文本)和新数据(strategy_id)，修复open_positions计算(含tp1_hit)，current_balance实时计算

backend/main.py

@@ -2456,22 +2456,39 @@ def _strategy_row_to_detail(row: dict) -> dict:
 
 
 async def _get_strategy_trade_stats(strategy_id: str) -> dict:
-    """Fetch trade statistics for a strategy by strategy_id"""
+    """Fetch trade statistics for a strategy by strategy_id.
+    兼容新数据（strategy_id列）和旧数据（strategy文本列）。
+    """
+    # 固定 UUID → legacy strategy文本名映射（迁移时写死的三条策略）
+    LEGACY_NAME_MAP = {
+        "00000000-0000-0000-0000-000000000053": "v53",
+        "00000000-0000-0000-0000-000000000054": "v53_middle",
+        "00000000-0000-0000-0000-000000000055": "v53_fast",
+    }
+    legacy_name = LEGACY_NAME_MAP.get(strategy_id)
+
+    # 查已关闭的交易记录（同时兼容新旧两种匹配方式）
+    if legacy_name:
         rows = await async_fetch(
             """SELECT status, pnl_r, tp1_hit, entry_ts, exit_ts
                FROM paper_trades
-           WHERE strategy_id=$1 AND status != 'active'
+               WHERE status NOT IN ('active', 'tp1_hit')
+               AND (strategy_id=$1 OR (strategy_id IS NULL AND strategy=$2))
+               ORDER BY entry_ts DESC""",
+            strategy_id, legacy_name
+        )
+    else:
+        rows = await async_fetch(
+            """SELECT status, pnl_r, tp1_hit, entry_ts, exit_ts
+               FROM paper_trades
+               WHERE strategy_id=$1 AND status NOT IN ('active', 'tp1_hit')
                ORDER BY entry_ts DESC""",
             strategy_id
         )
+
     if not rows:
-        return {
-            "trade_count": 0, "win_rate": 0.0,
-            "avg_win_r": 0.0, "avg_loss_r": 0.0,
-            "open_positions": 0,
-            "pnl_usdt_24h": 0.0, "pnl_r_24h": 0.0,
-            "last_trade_at": None,
-        }
+        # 即使没有历史记录也要查持仓
+        pass
 
     total = len(rows)
     wins = [r for r in rows if (r["pnl_r"] or 0) > 0]
@@ -2487,12 +2504,21 @@ async def _get_strategy_trade_stats(strategy_id: str) -> dict:
     pnl_r_24h = round(sum(r["pnl_r"] or 0 for r in rows_24h), 3)
     pnl_usdt_24h = round(pnl_r_24h * 200, 2)
 
-    # Open positions
+    # Open positions — status IN ('active','tp1_hit')，同时兼容新旧记录
+    if legacy_name:
         open_rows = await async_fetch(
-        "SELECT COUNT(*) as cnt FROM paper_trades WHERE strategy_id=$1 AND status='active'",
+            """SELECT COUNT(*) as cnt FROM paper_trades
+               WHERE status IN ('active','tp1_hit')
+               AND (strategy_id=$1 OR (strategy_id IS NULL AND strategy=$2))""",
+            strategy_id, legacy_name
+        )
+    else:
+        open_rows = await async_fetch(
+            """SELECT COUNT(*) as cnt FROM paper_trades
+               WHERE strategy_id=$1 AND status IN ('active','tp1_hit')""",
             strategy_id
         )
-    open_positions = open_rows[0]["cnt"] if open_rows else 0
+    open_positions = int(open_rows[0]["cnt"]) if open_rows else 0
 
     return {
         "trade_count": total,
@@ -2503,6 +2529,8 @@ async def _get_strategy_trade_stats(strategy_id: str) -> dict:
         "pnl_usdt_24h": pnl_usdt_24h,
         "pnl_r_24h": pnl_r_24h,
         "last_trade_at": last_trade_at,
+        "net_r": round(sum(r["pnl_r"] or 0 for r in rows), 3),
+        "net_usdt": round(sum(r["pnl_r"] or 0 for r in rows) * 200, 2),
     }
 
 
@@ -2569,6 +2597,8 @@ async def list_strategies(
         d = _strategy_row_to_card(dict(row))
         stats = await _get_strategy_trade_stats(str(row["strategy_id"]))
         d.update(stats)
+        # 用实时计算的 net_usdt 覆盖 DB 静态的 current_balance
+        d["current_balance"] = round(row["initial_balance"] + d["net_usdt"], 2)
         result.append(d)
     return {"strategies": result}
 
@@ -2580,6 +2610,7 @@ async def get_strategy(sid: str, user: dict = Depends(get_current_user)):
     detail = _strategy_row_to_detail(row)
     stats = await _get_strategy_trade_stats(sid)
     detail.update(stats)
+    detail["current_balance"] = round(row["initial_balance"] + detail["net_usdt"], 2)
     return {"strategy": detail}