from fastapi import APIRouter, Depends, HTTPException

from app.auth import verify_token
from app.ops_runner import cancel_op

router = APIRouter()


@router.delete("/{op_id}", summary="Cancel a running operation")
async def cancel_operation(
    op_id: str,
    _: str = Depends(verify_token),
) -> dict:
    """Terminate a running operation by its op_id."""
    if cancel_op(op_id):
        return {"cancelled": True, "op_id": op_id}
    raise HTTPException(status_code=404, detail=f"No active operation with id '{op_id}'")