from datetime import datetime, timezone, timedelta

from argus_mcp.models import MarketQuote, RegimeSnapshot
from argus_mcp.storage import SnapshotStore


def test_prune_snapshots_older_than(tmp_path):
    store = SnapshotStore(tmp_path / "argus.sqlite3")
    old_snapshot = RegimeSnapshot(
        snapshot_id="old",
        generated_at=datetime.now(timezone.utc) - timedelta(days=31),
        regime="neutral",
        confidence=0.1,
        summary="old",
    )
    fresh_snapshot = RegimeSnapshot(
        snapshot_id="fresh",
        generated_at=datetime.now(timezone.utc),
        regime="compression",
        confidence=0.5,
        summary="fresh",
        signals=[MarketQuote(symbol="QQQ", source="finnhub")],
    )

    store.save(old_snapshot)
    store.save(fresh_snapshot)

    deleted = store.prune_snapshots_older_than(30)

    assert deleted == 1
    assert store.count() == 1
    latest = store.latest()
    assert latest is not None
    assert latest.snapshot_id == "fresh"