# ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
# 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.
# ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========

from mirage.accessor.history import HistoryAccessor
from mirage.cache.index import IndexCacheStore
from mirage.types import PathSpec


async def readdir(accessor: HistoryAccessor,
                  path: PathSpec,
                  index: IndexCacheStore = None) -> list[str]:
    """List nothing: the mount root is a file, not a directory.

    Keeps recursive traversal (find, grep -r, tree) from blowing up
    when it descends into the view mount.

    Args:
        accessor (HistoryAccessor): Accessor holding the recorder.
        path (PathSpec): Virtual path.
        index (IndexCacheStore): Unused; op signature parity.

    Returns:
        list[str]: Always empty.
    """
    return []