from src.services.notification_matrix import resolve_chat_ids


def test_only_shared_incident_types_resolve_to_sre_group() -> None:
    for notification_type in [
        "TYPE-2",
        "TYPE-3",
        "TYPE-4",
        "TYPE-4D",
        "TYPE-5S",
        "TYPE-7E",
        "TYPE-8M",
    ]:
        assert resolve_chat_ids(
            notification_type,
            dm_chat_id="operator-dm-id",
            group_chat_id="sre-room-id",
            tg_group_cutover=False,
        ) == ["sre-room-id"]


def test_info_business_and_unknown_types_are_fail_closed() -> None:
    for notification_type in ["TYPE-1", "TYPE-6B", "UNKNOWN"]:
        assert (
            resolve_chat_ids(
                notification_type,
                dm_chat_id="operator-dm-id",
                group_chat_id="sre-room-id",
                tg_group_cutover=False,
            )
            == []
        )


def test_explicit_empty_registry_does_not_fall_back_to_default() -> None:
    assert (
        resolve_chat_ids(
            "TYPE-5S",
            dm_chat_id="operator-dm-id",
            group_chat_id="sre-room-id",
            registry={},
        )
        == []
    )


def test_dm_is_not_used_when_group_missing() -> None:
    assert (
        resolve_chat_ids(
            "TYPE-3",
            dm_chat_id="operator-dm-id",
            group_chat_id="",
            tg_group_cutover=True,
        )
        == []
    )