from uuid import uuid4

import pytest
from pydantic import ValidationError

from app.config import Settings
from app.models import MonitorCreate, MonitorState, StatusSnapshot
from app.store import MonitorStore

pytestmark = pytest.mark.anyio


async def test_revision_prevents_stale_check_write() -> None:
    store = MonitorStore()
    monitor = await store.create(MonitorCreate(name="a", url="https://example.com"))
    pending = await store.begin_check(monitor.id)
    assert pending is not None
    _, revision = pending
    await store.update(monitor.id, MonitorCreate(name="b", url="https://example.org"))
    saved = await store.finish_check(
        monitor.id, revision, StatusSnapshot(state=MonitorState.UP),
    )
    assert saved is False
    assert (await store.get(monitor.id)).status.state is MonitorState.UNKNOWN  # type: ignore[union-attr]
    assert await store.begin_check(uuid4()) is None


async def test_settings_validation() -> None:
    with pytest.raises(ValidationError):
        Settings(check_timeout_seconds=0)
    with pytest.raises(ValidationError):
        Settings(max_redirects=99)