get puck events

backend/app/routers/puck.py

@@ -2,7 +2,7 @@ from fastapi import APIRouter, HTTPException, status, Depends
 from sqlalchemy.orm import Session
 from typing import List
 import uuid
-from app.schemas import Puck as PuckSchema, PuckCreate, PuckUpdate, SetTellPosition, PuckEventCreate
+from app.schemas import Puck as PuckSchema, PuckCreate, PuckUpdate, SetTellPosition, PuckEvent
 from app.models import Puck as PuckModel, Sample as SampleModel, PuckEvent as PuckEventModel
 from app.dependencies import get_db
 from datetime import datetime
@@ -102,3 +102,28 @@ async def set_tell_position(
         "tell_position": new_puck_event.tell_position,
         "timestamp": new_puck_event.timestamp,
     }
+
+
+@router.get("/{puck_id}/last-tell-position", status_code=status.HTTP_200_OK)
+async def get_last_tell_position(puck_id: str, db: Session = Depends(get_db)):
+    # Query the most recent tell_position_set event for the given puck_id
+    last_event = (
+        db.query(PuckEventModel)
+        .filter(PuckEventModel.puck_id == puck_id, PuckEventModel.event_type == "tell_position_set")
+        .order_by(PuckEventModel.timestamp.desc())
+        .first()
+    )
+
+    # If no event is found, return a 404 error
+    if not last_event:
+        raise HTTPException(
+            status_code=404,
+            detail=f"No 'tell_position' event found for puck with ID {puck_id}",
+        )
+
+    # Return the details of the last tell_position event
+    return {
+        "puck_id": puck_id,
+        "tell_position": last_event.tell_position,
+        "timestamp": last_event.timestamp,
+    }

backend/app/schemas.py

@@ -150,6 +150,15 @@ class SampleCreate(BaseModel):
     class Config:
         populate_by_name = True
 
+class PuckEvent(BaseModel):
+    id: int
+    puck_id: int
+    tell_position: Optional[str] = None
+    event_type: str
+    timestamp: datetime
+
+    class Config:
+        from_attributes = True
 
 class PuckBase(BaseModel):
     puck_name: str
@@ -177,6 +186,7 @@ class Puck(BaseModel):
     puck_type: str
     puck_location_in_dewar: int
     dewar_id: int
+    events: List[PuckEvent] = []
     samples: List[Sample] = []  # List of samples within this puck
 
     class Config:
@@ -308,9 +318,6 @@ class SlotSchema(BaseModel):
     class Config:
         from_attributes = True
 
-class PuckEventCreate(BaseModel):
-    event_type: str
-
 class SetTellPosition(BaseModel):
     tell_position: str = Field(
         ...,