Merge pull request #35 from fourblocks2020/feat/dcy-036-kis-credential-inject

feat(dcy-036/bat-054): KISBroker 양의 경로 — 데몬-스코프 KIS 인증정보 실거래 주입

trex_core/application/snapshot_scheduler.py

@@ -50,6 +50,7 @@ class SnapshotScheduler:
         alarm_emitter: Optional[AlarmEmitter] = None,
         warn_store: Optional[ReconcileWarningStore] = None,
         credential_fetch_enabled: bool = False,
+        kis_reinit_callback: Optional[Callable[[BrokerCredentialPayload], None]] = None,
     ) -> None:
         self._read = read_port
         self._store = store
@@ -72,6 +73,10 @@ class SnapshotScheduler:
         # dcy-036 / REQ-113/114/115: credential fetch opt-in + break-glass detection.
         # credential_fetch_enabled=False (default) → env-only, no portfolio-hub fetch.
         self._credential_fetch_enabled: bool = credential_fetch_enabled
+        # dcy-036 / REQ-113 AC-2 / REQ-115 AC-1: optional callback to reinitialize
+        # KISBroker with the fetched day-start credential. None = no reinit (paper
+        # broker or credential_fetch_enabled=False). Set by daemon.py assembly.
+        self._kis_reinit_callback: Optional[Callable[[BrokerCredentialPayload], None]] = kis_reinit_callback
         # REQ-113: detect break-glass at init time (env var set by operator).
         self._break_glass: bool = (
             os.environ.get("TREX_KIS_BROKER_BREAK_GLASS", "").lower()
@@ -206,6 +211,26 @@ class SnapshotScheduler:
             ctx.broker.credential_version,
             self._instance_key,
         )
+        # dcy-036 / REQ-113 AC-2 / REQ-115 AC-1: reinitialize KISBroker with
+        # fetched credential so intraday KIS API calls use the day-start creds.
+        # Failure does NOT flip entry_allowed — the broker runs on existing env
+        # credentials until next checkpoint (graceful degrade, not fail-closed).
+        if self._kis_reinit_callback is not None:
+            try:
+                self._kis_reinit_callback(ctx.broker)
+                _log.info(
+                    "DAY_START KISBroker reinitialized with fetched credential "
+                    "(account_ref=%s, instance=%s)",
+                    ctx.broker.account_ref,
+                    self._instance_key,
+                )
+            except Exception as exc:  # noqa: BLE001
+                _log.error(
+                    "DAY_START KISBroker reinitialize failed: %s (instance=%s) "
+                    "— trading continues with existing env credential",
+                    exc.__class__.__name__,
+                    self._instance_key,
+                )
 
     def _emit_day_start_alarm(self, *, reason: str) -> None:
         """Publish CRITICAL DAY_START_LOAD_FAILED alarm (REQ-114)."""