# ========= 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. =========

import os

import pytest
import pytest_asyncio

from mirage.accessor.redis import RedisAccessor
from mirage.core.redis.mkdir import mkdir
from mirage.core.redis.mkdir_p import mkdir_p
from mirage.resource.redis.store import RedisStore
from mirage.types import PathSpec

REDIS_URL = os.environ.get("REDIS_URL", "")
pytestmark = pytest.mark.skipif(not REDIS_URL, reason="REDIS_URL not set")


@pytest_asyncio.fixture()
async def mk_store():
    stores = []

    async def _make(prefix):
        s = RedisStore(url=REDIS_URL, key_prefix=prefix)
        await s.clear()
        await s.add_dir("/")
        stores.append(s)
        return RedisAccessor(s)

    yield _make
    for s in stores:
        await s.clear()
        await s.close()


@pytest.mark.asyncio
async def test_mkdir(mk_store):
    a = await mk_store("test:mkdir:1:")
    await mkdir(
        a,
        PathSpec(resource_path="newdir",
                 virtual="/newdir",
                 directory="/newdir"))
    assert await a.store.has_dir("/newdir")
    assert await a.store.get_modified("/newdir") is not None


@pytest.mark.asyncio
async def test_mkdir_parent_not_found(mk_store):
    a = await mk_store("test:mkdir:2:")
    with pytest.raises(
            FileNotFoundError,
            match="parent directory does not exist",
    ):
        await mkdir(
            a,
            PathSpec(resource_path="no/parent",
                     virtual="/no/parent",
                     directory="/no/parent"))


@pytest.mark.asyncio
async def test_mkdir_already_exists(mk_store):
    a = await mk_store("test:mkdir:3:")
    await mkdir(
        a, PathSpec(resource_path="dir", virtual="/dir", directory="/dir"))
    await mkdir(
        a, PathSpec(resource_path="dir", virtual="/dir", directory="/dir"))
    assert await a.store.has_dir("/dir")


@pytest.mark.asyncio
async def test_mkdir_with_parents(mk_store):
    a = await mk_store("test:mkdir:4:")
    await mkdir(a,
                PathSpec(resource_path="a/b/c",
                         virtual="/a/b/c",
                         directory="/a/b/c"),
                parents=True)
    assert await a.store.has_dir("/a")
    assert await a.store.has_dir("/a/b")
    assert await a.store.has_dir("/a/b/c")


@pytest.mark.asyncio
async def test_mkdir_p(mk_store):
    a = await mk_store("test:mkdir:5:")
    await mkdir_p(a, "/x/y/z")
    assert await a.store.has_dir("/x")
    assert await a.store.has_dir("/x/y")
    assert await a.store.has_dir("/x/y/z")


@pytest.mark.asyncio
async def test_mkdir_p_existing_parent(mk_store):
    a = await mk_store("test:mkdir:6:")
    await a.store.add_dir("/existing")
    await mkdir_p(a, "/existing/child/grandchild")
    assert await a.store.has_dir("/existing/child")
    assert await a.store.has_dir("/existing/child/grandchild")


@pytest.mark.asyncio
async def test_mkdir_p_does_not_overwrite_modified(mk_store):
    a = await mk_store("test:mkdir:7:")
    await mkdir_p(a, "/a")
    original = await a.store.get_modified("/a")
    await mkdir_p(a, "/a/b")
    assert await a.store.get_modified("/a") == original