restructure: move backend into backend/

backend/app/routers/nas.py

@@ -0,0 +1,46 @@
+from fastapi import APIRouter, Depends
+from sqlalchemy.orm import Session
+
+from .. import crud
+from ..database import get_db
+from ..models import Nas
+from ..pagination import Page, PageParams
+from ..schemas import NasCreate, NasOut, NasUpdate
+
+router = APIRouter(prefix="/nas", tags=["nas"])
+
+
+@router.get("", response_model=Page[NasOut])
+def list_nas(
+    page: PageParams = Depends(),
+    nasname: str | None = None,
+    shortname: str | None = None,
+    db: Session = Depends(get_db),
+):
+    filters = {"nasname": nasname, "shortname": shortname}
+    total = crud.count_rows(db, Nas, filters)
+    rows = crud.list_rows(db, Nas, limit=page.limit, offset=page.offset, filters=filters,
+                          order_by=Nas.id.asc())
+    return Page(total=total, limit=page.limit, offset=page.offset, items=rows)
+
+
+@router.get("/{nas_id}", response_model=NasOut)
+def get_nas(nas_id: int, db: Session = Depends(get_db)):
+    return crud.get_row_or_404(db, Nas, nas_id)
+
+
+@router.post("", response_model=NasOut, status_code=201)
+def create_nas(payload: NasCreate, db: Session = Depends(get_db)):
+    return crud.create_row(db, Nas, payload.model_dump())
+
+
+@router.put("/{nas_id}", response_model=NasOut)
+def update_nas(nas_id: int, payload: NasUpdate, db: Session = Depends(get_db)):
+    obj = crud.get_row_or_404(db, Nas, nas_id)
+    return crud.update_row(db, obj, payload.model_dump(exclude_unset=True))
+
+
+@router.delete("/{nas_id}", status_code=204)
+def delete_nas(nas_id: int, db: Session = Depends(get_db)):
+    obj = crud.get_row_or_404(db, Nas, nas_id)
+    crud.delete_row(db, obj)