Implement browser push notifications

backend/routes/push.py

@@ -0,0 +1,46 @@
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+from dependencies import get_current_user, get_db
+from models import User, PushSubscriptionRequest
+from push_service import push_service
+
+router = APIRouter()
+
+@router.post("/subscribe")
+async def subscribe_to_push_notifications(
+    request: PushSubscriptionRequest,
+    current_user: User = Depends(get_current_user),
+    db: Session = Depends(get_db)
+):
+    """Subscribe user to push notifications"""
+    try:
+        success = await push_service.subscribe_user(
+            db=db,
+            user_id=current_user.id,
+            endpoint=request.endpoint,
+            p256dh_key=request.keys["p256dh"],
+            auth_key=request.keys["auth"]
+        )
+        
+        if success:
+            return {"status": "success", "message": "Push notifications enabled"}
+        else:
+            raise HTTPException(status_code=500, detail="Failed to enable push notifications")
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
+
+@router.delete("/unsubscribe")
+async def unsubscribe_from_push_notifications(
+    current_user: User = Depends(get_current_user),
+    db: Session = Depends(get_db)
+):
+    """Unsubscribe user from push notifications"""
+    try:
+        success = await push_service.unsubscribe_user(db=db, user_id=current_user.id)
+        
+        if success:
+            return {"status": "success", "message": "Push notifications disabled"}
+        else:
+            raise HTTPException(status_code=500, detail="Failed to disable push notifications")
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))