"""Tests for the SQLite TTL cache."""

import time
from pathlib import Path

import pytest

from mcp_cucm_axl.cache import AxlCache


@pytest.fixture
def cache(tmp_path: Path) -> AxlCache:
    return AxlCache(tmp_path / "test.sqlite", default_ttl=60)


def test_set_and_get(cache: AxlCache):
    cache.set("getCCMVersion", {}, {"version": "15.0.1"})
    assert cache.get("getCCMVersion", {}) == {"version": "15.0.1"}


def test_miss_returns_none(cache: AxlCache):
    assert cache.get("nonexistent", {"x": 1}) is None


def test_kwargs_order_independent(cache: AxlCache):
    cache.set("listPhone", {"name": "SEP1", "limit": 10}, {"rows": ["p1"]})
    # Different order should still hit
    assert cache.get("listPhone", {"limit": 10, "name": "SEP1"}) == {"rows": ["p1"]}


def test_different_args_different_keys(cache: AxlCache):
    cache.set("listPhone", {"name": "SEP1"}, {"rows": ["a"]})
    cache.set("listPhone", {"name": "SEP2"}, {"rows": ["b"]})
    assert cache.get("listPhone", {"name": "SEP1"}) == {"rows": ["a"]}
    assert cache.get("listPhone", {"name": "SEP2"}) == {"rows": ["b"]}


def test_expired_entries_not_returned(tmp_path: Path):
    c = AxlCache(tmp_path / "ttl.sqlite", default_ttl=60)
    c.set("foo", {}, {"x": 1}, ttl=1)
    time.sleep(1.1)
    assert c.get("foo", {}) is None


def test_ttl_zero_disables_caching(tmp_path: Path):
    c = AxlCache(tmp_path / "off.sqlite", default_ttl=0)
    c.set("foo", {}, {"x": 1})
    # default_ttl=0 means writes are no-ops
    assert c.get("foo", {}) is None


def test_stats_reports_breakdown(cache: AxlCache):
    cache.set("listPhone", {}, {"x": 1})
    cache.set("listPhone", {"a": 1}, {"x": 2})
    cache.set("getCCMVersion", {}, {"v": "15"})

    stats = cache.stats()
    assert stats["live_entries"] == 3
    assert stats["by_method"]["listPhone"] == 2
    assert stats["by_method"]["getCCMVersion"] == 1


def test_clear_all(cache: AxlCache):
    cache.set("a", {}, "x")
    cache.set("b", {}, "y")
    deleted = cache.clear()
    assert deleted == 2
    assert cache.stats()["live_entries"] == 0


def test_clear_by_pattern(cache: AxlCache):
    cache.set("listPhone", {}, "p")
    cache.set("listLine", {}, "l")
    cache.set("getCCMVersion", {}, "v")
    deleted = cache.clear("list*")
    assert deleted == 2
    assert cache.get("getCCMVersion", {}) == "v"


def test_purge_expired(tmp_path: Path):
    c = AxlCache(tmp_path / "p.sqlite", default_ttl=60)
    c.set("a", {}, "x", ttl=1)
    c.set("b", {}, "y", ttl=60)
    time.sleep(1.1)
    purged = c.purge_expired()
    assert purged == 1
    assert c.stats()["live_entries"] == 1