# Copyright 2026 Google LLC

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

from __future__ import annotations

from abc import ABC

from abc import abstractmethod

from typing import Optional

from .eval_case import EvalCase

from .eval_set import EvalSet

class EvalSetsManager(ABC):

"""An interface to manage Eval Sets."""

@abstractmethod

def get_eval_set(self, app_name: str, eval_set_id: str) -> Optional[EvalSet]:

"""Returns an EvalSet identified by an app_name and eval_set_id."""

@abstractmethod

def create_eval_set(self, app_name: str, eval_set_id: str) -> EvalSet:

"""Creates and returns an empty EvalSet given the app_name and eval_set_id.

Raises:

ValueError: If eval set id is not valid or an eval set already exists. A

valid eval set id is string that has one or more of following characters:

- Lower case characters

- Upper case characters

- 0-9

- Underscore

"""

@abstractmethod

def list_eval_sets(self, app_name: str) -> list[str]:

"""Returns a list of EvalSets that belong to the given app_name.

Raises:

NotFoundError: If the app_name doesn't exist.

"""

@abstractmethod

def get_eval_case(

self, app_name: str, eval_set_id: str, eval_case_id: str

) -> Optional[EvalCase]:

"""Returns an EvalCase if found; otherwise, None."""

@abstractmethod

def add_eval_case(self, app_name: str, eval_set_id: str, eval_case: EvalCase):

"""Adds the given EvalCase to an existing EvalSet identified by app_name and eval_set_id.

Raises:

NotFoundError: If the eval set is not found.

"""

@abstractmethod

def update_eval_case(

self, app_name: str, eval_set_id: str, updated_eval_case: EvalCase

):

"""Updates an existing EvalCase give the app_name and eval_set_id.

Raises:

NotFoundError: If the eval set or the eval case is not found.

"""

@abstractmethod

def delete_eval_case(

self, app_name: str, eval_set_id: str, eval_case_id: str

):

"""Deletes the given EvalCase identified by app_name, eval_set_id and eval_case_id.

Raises:

NotFoundError: If the eval set or the eval case to delete is not found.

"""