# ========= 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 unittest.mock import AsyncMock, patch

import pytest

from mirage.accessor.gdrive import GDriveAccessor
from mirage.cache.index.config import IndexEntry
from mirage.cache.index.ram import RAMIndexCacheStore
from mirage.core.google.client import TokenManager
from mirage.core.google.config import GoogleConfig
from mirage.ops.gdrive import OPS
from mirage.types import FileType, PathSpec
from mirage.utils.key_prefix import mount_key


def _op(name: str):
    return next(o.fn for o in OPS if o.name == name and o.filetype is None)


stat = _op("stat")


def _scope(path: str, prefix: str = "") -> PathSpec:
    return PathSpec(resource_path=mount_key(path, prefix),
                    virtual=path,
                    directory=path.rsplit("/", 1)[0] or "/")


@pytest.fixture
def accessor():
    config = GoogleConfig(client_id="cid", refresh_token="rt")
    return GDriveAccessor(config=config, token_manager=TokenManager(config))


@pytest.fixture
def index():
    return RAMIndexCacheStore()


@pytest.mark.asyncio
async def test_stat_root_is_directory(accessor, index):
    result = await stat(accessor, _scope("/"), index=index)
    assert result.name == "/"
    assert result.type == FileType.DIRECTORY


@pytest.mark.asyncio
async def test_stat_indexed_file(accessor, index):
    await index.put(
        "/docs/readme.txt",
        IndexEntry(
            id="file123",
            name="readme",
            resource_type="gdrive/file",
            remote_time="2026-04-01T00:00:00Z",
            vfs_name="readme.txt",
            size=7,
        ))
    result = await stat(accessor, _scope("/docs/readme.txt"), index=index)
    assert result.name == "readme.txt"
    assert result.size == 7
    assert result.extra["file_id"] == "file123"


@pytest.mark.asyncio
async def test_stat_not_found(accessor, index):
    await index.set_dir("/", [])
    with patch(
            "mirage.core.gdrive.resolve.list_files",
            new_callable=AsyncMock,
            return_value=[],
    ), patch(
            "mirage.core.gdrive.resolve.list_shared_drives",
            new_callable=AsyncMock,
            return_value=[],
    ):
        with pytest.raises(FileNotFoundError):
            await stat(accessor, _scope("/nonexistent.txt"), index=index)
