# ========= 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.s3 import S3Accessor
from mirage.cache.index import IndexCacheStore
from mirage.commands.builtin.generic_bind.provision import \
    write_metadata_provision
from mirage.commands.registry import command
from mirage.commands.spec import SPECS
from mirage.core.s3.exists import exists
from mirage.core.s3.glob import resolve_glob
from mirage.core.s3.write import write_bytes
from mirage.io.types import ByteSource, IOResult
from mirage.types import PathSpec


@command("touch",
         resource="s3",
         spec=SPECS["touch"],
         write=True,
         provision=write_metadata_provision)
async def touch(
    accessor: S3Accessor,
    paths: list[PathSpec],
    *texts: str,
    stdin: bytes | None = None,
    c: bool = False,
    r: str | None = None,
    d: str | None = None,
    index: IndexCacheStore = None,
    **_extra: object,
) -> tuple[ByteSource | None, IOResult]:
    if not paths:
        raise ValueError("touch: missing operand")
    paths = await resolve_glob(accessor, paths, index)
    writes: dict[str, bytes] = {}
    for p in paths:
        if c:
            continue
        if not await exists(accessor, p):
            await write_bytes(accessor, p, b"")
            writes[p.mount_path] = b""
    return None, IOResult(writes=writes)