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app/models/mongodb/device_log.py

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+from __future__ import annotations
+
+from datetime import datetime
+
+from beanie import Document
+from pydantic import Field
+
+
+class DeviceLog(Document):
+    device_id: str
+    event_type: str
+    payload: dict = Field(default_factory=dict)
+    ip_address: str | None = None
+    timestamp: datetime = Field(default_factory=datetime.utcnow)
+
+    class Settings:
+        name = "device_logs"
+        indexes = [
+            "device_id",
+            "event_type",
+            [("timestamp", -1)],
+        ]
+        # TTL: 90일 후 자동 삭제
+        timeseries = {
+            "timeField": "timestamp",
+            "expireAfterSeconds": 90 * 24 * 3600,
+        }