"""Contract tests: any BaseEventStore implementation must pass these."""
from app.infrastructure.perception.base_event_store import BaseEventStore
from app.infrastructure.perception.mock_event_store import MockEventStore


def _store() -> BaseEventStore:
    return MockEventStore()


def test_is_base_event_store():
    assert isinstance(_store(), BaseEventStore)


def test_all_returns_list():
    result = _store().all()
    assert isinstance(result, list)
    assert len(result) > 0


def test_get_known_id():
    store = _store()
    first = store.all()[0]
    result = store.get(first["id"])
    assert result is not None
    assert result["id"] == first["id"]


def test_get_unknown_returns_none():
    assert _store().get("does-not-exist") is None


def test_filter_by_impact():
    store = _store()
    highs = store.filter(impact_level="high", limit=100)
    assert all(e["impact_level"] == "high" for e in highs)


def test_filter_limit():
    store = _store()
    result = store.filter(limit=3)
    assert len(result) <= 3


def test_stats_keys():
    stats = _store().stats()
    for key in ("total", "high_impact", "medium_impact", "recent_90d"):
        assert key in stats, f"missing key: {key}"


def test_upsert_and_get():
    store = _store()
    event = {
        "id": "test-upsert-001",
        "source": "TEST",
        "source_label": "Test Source",
        "standard_code": "TST-001",
        "title": "Test Event",
        "summary": "A test event",
        "full_text_url": "https://example.com",
        "status": "draft",
        "impact_level": "low",
        "published_at": "2026-01-01",
        "effective_at": None,
        "category": "test",
        "tags": ["test"],
        "content_hash": "abc123",
        "previous_hash": None,
    }
    store.upsert(event)
    result = store.get("test-upsert-001")
    assert result is not None
    assert result["title"] == "Test Event"


def test_get_by_standard_code():
    store = _store()
    first = store.all()[0]
    result = store.get_by_standard_code(first["standard_code"])
    assert result is not None
    assert result["standard_code"] == first["standard_code"]


def test_upsert_updates_existing():
    store = _store()
    first = store.all()[0]
    original_id = first["id"]
    store.upsert({"id": original_id, "title": "Updated Title", "impact_level": first["impact_level"],
                  "standard_code": first.get("standard_code", ""), "source": first["source"],
                  "source_label": first.get("source_label", ""), "summary": "Updated",
                  "full_text_url": "", "status": first["status"], "published_at": first.get("published_at", ""),
                  "effective_at": None, "category": first.get("category", ""), "tags": [],
                  "content_hash": "newhash", "previous_hash": None})
    result = store.get(original_id)
    assert result is not None
    assert result["title"] == "Updated Title"