# -*- coding: utf-8 -*-
"""看板缓存与版本失效测试（离线）: uv run python tests/test_cache.py"""

import os
import sys
import tempfile
import time
from pathlib import Path

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.stdout.reconfigure(encoding="utf-8")

from reaction_board.database import Database  # noqa: E402
from reaction_board.repository import Repository  # noqa: E402
from reaction_board.web.cache import TTLCache, build_cache_key  # noqa: E402


def test_ttl_cache_expiry_and_params():
    now = [1000.0]
    cache = TTLCache(clock=lambda: now[0], max_items=32)
    key = build_cache_key("db", "videos", 0, {"sort": "heat", "page": 1})
    assert cache.get(key) is None
    cache.set(key, 10.0, {"value": 1})
    now[0] += 5
    assert cache.get(key) == {"value": 1}
    now[0] += 6
    assert cache.get(key) is None

    same = build_cache_key("db", "videos", 0, {"page": 1, "sort": "heat"})
    assert same == key
    other = build_cache_key("db", "videos", 1, {"page": 1, "sort": "heat"})
    assert other != key


def test_ttl_cache_prunes_to_max_items():
    now = [0.0]
    cache = TTLCache(clock=lambda: now[0], max_items=16)
    for index in range(40):
        cache.set(("k", index), 100.0, index)
    assert len(cache) <= 16


def test_repository_cache_version():
    with tempfile.TemporaryDirectory() as tmp:
        db = Database(Path(tmp) / "app.db")
        db.initialize()
        try:
            repo = Repository(db)
            assert repo.cache_version("videos") == 0
            assert repo.bump_cache_version("videos") == 1
            assert repo.bump_cache_version("videos") == 2
            assert repo.cache_version("videos") == 2
            assert repo.cache_version("fans") == 0
            repo.bump_cache_version("fans")
            assert repo.cache_version("fans") == 1
        finally:
            db.close()


def main_test():
    test_ttl_cache_expiry_and_params()
    test_ttl_cache_prunes_to_max_items()
    test_repository_cache_version()
    print("OK: 缓存 TTL/键/版本失效测试全部通过")


if __name__ == "__main__":
    main_test()