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QuantTrader/execution/order_store.py

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+"""Simple JSONL order store for audit/replay."""
+
+from __future__ import annotations
+
+import json
+from dataclasses import asdict
+from pathlib import Path
+from typing import Iterable
+
+from QuantTrader.execution.adapter import OrderParams
+
+
+class OrderStore:
+    def __init__(self, path: str = "results/execution/orders.log"):
+        self.path = Path(path)
+        self.path.parent.mkdir(parents=True, exist_ok=True)
+
+    def append(self, order_id: str, params: OrderParams) -> None:
+        record = {"order_id": order_id, **asdict(params)}
+        with self.path.open("a", encoding="utf-8") as fh:
+            fh.write(json.dumps(record) + "\n")
+
+    def load(self) -> Iterable[dict]:
+        if not self.path.exists():
+            return []
+        with self.path.open("r", encoding="utf-8") as fh:
+            for line in fh:
+                yield json.loads(line)