Create services/service.py

app/services/service.py

@@ -0,0 +1,26 @@
+from sqlalchemy.orm import Session
+from app.models.model import DrowsinessEvent
+from app.schemas.schema import DrowsinessEventCreate
+from sqlalchemy import func
+def log_event(db:Session,event:DrowsinessEventCreate)->DrowsinessEvent:
+    db_event=DrowsinessEvent(source=event.source,status=event.status)
+    db.add(db_event)
+    db.commit()
+    db.refresh(db_event)
+    return db_event
+
+def get_all_events(db:Session):
+    return db.query(DrowsinessEvent).order_by(DrowsinessEvent.timestamp.desc()).all()
+
+def get_event_stats(db:Session):
+    total=db.query(DrowsinessEvent).count()
+    by_status = (
+        db.query(DrowsinessEvent.status, func.count())
+        .group_by(DrowsinessEvent.status)
+        .all()
+    )
+    return {
+        "total":total,
+        "by_status":dict(by_status)
+
+    }