"""Unit tests for compact vitals tool payloads."""

from tools import (
    RANGE_SNAPSHOT_CAP,
    _agent_snapshot,
    _cap_snapshots,
    _compact_live_vitals,
    _compact_snapshot,
    _resolve_stored_vital_label,
)


def test_compact_snapshot_keeps_key_labels_only():
    snapshot = {
        "id": 1,
        "ts": "2026-06-10T14:00:00+00:00",
        "dtcs": ["P0171"],
        "readings": {
            "RPM": "850",
            "Coolant temp": "92",
            "Short fuel trim B1": "12.5",
            "Cat temp B1S1": "400",
            "Speed": "0",
        },
    }
    compact = _compact_snapshot(snapshot)
    assert compact["ts"] == snapshot["ts"]
    assert compact["dtcs"] == ["P0171"]
    assert compact["readings"] == {
        "RPM": "850",
        "Coolant temp": "92",
        "Short fuel trim B1": "12.5",
        "Speed": "0",
    }
    assert "Cat temp B1S1" not in compact["readings"]


def test_compact_snapshot_from_readings_list():
    snapshot = {
        "ts": "2026-06-10T14:01:00+00:00",
        "dtcs": [],
        "readings": [
            {"label": "RPM", "value": "900"},
            {"label": "MAF", "value": "3.2"},
            {"label": "Throttle position", "value": "14"},
        ],
    }
    compact = _compact_snapshot(snapshot)
    assert compact["readings"] == {
        "RPM": "900",
        "MAF": "3.2",
        "Throttle position": "14",
    }


def test_agent_snapshot_includes_id():
    snapshot = {
        "id": 42,
        "ts": "2026-06-10T14:00:00+00:00",
        "dtcs": [],
        "readings": {"RPM": "800"},
    }
    out = _agent_snapshot(snapshot)
    assert out["id"] == 42
    assert out["readings"] == {"RPM": "800"}


def test_cap_snapshots_under_limit():
    rows = [{"id": i} for i in range(10)]
    capped, truncated = _cap_snapshots(rows)
    assert len(capped) == 10
    assert truncated is False


def test_cap_snapshots_over_limit():
    rows = [{"id": i} for i in range(RANGE_SNAPSHOT_CAP + 5)]
    capped, truncated = _cap_snapshots(rows)
    assert len(capped) == RANGE_SNAPSHOT_CAP
    assert truncated is True


def test_compact_live_vitals_strips_descriptions():
    vitals = [
        {"name": "RPM", "description": "Engine RPM", "value": "850"},
        {"name": "MAF", "description": "Mass Air Flow", "value": "4.1"},
    ]
    assert _compact_live_vitals(vitals) == [
        {"name": "RPM", "value": "850"},
        {"name": "MAF", "value": "4.1"},
    ]


def test_resolve_stored_vital_label():
    assert _resolve_stored_vital_label("RPM") == "RPM"
    assert _resolve_stored_vital_label("coolant temp") == "Coolant temp"
    assert _resolve_stored_vital_label("COOLANT_TEMP") == "Coolant temp"
    assert _resolve_stored_vital_label("Not A Sensor") is None


def test_get_vital_history_chronological(tmp_path, monkeypatch):
    import vitals_store

    db = tmp_path / "vitals.db"
    monkeypatch.setenv("VITALS_DB_PATH", str(db))
    vitals_store._initialized = False
    vitals_store.DB_PATH = db

    vitals_store.append_snapshot(
        {
            "readings": [{"label": "RPM", "value": "800"}],
            "dtcs": [],
        }
    )
    vitals_store.append_snapshot(
        {
            "readings": [{"label": "RPM", "value": "850"}],
            "dtcs": [],
        }
    )
    history = vitals_store.get_vital_history("RPM", count=10)
    assert len(history) == 2
    assert history[0]["value"] == "800"
    assert history[1]["value"] == "850"
    assert "ts" in history[0]


def test_probe_obd_vitals_shape():
    from obd_connection import probe_obd_vitals

    result = probe_obd_vitals()
    assert "can_receive_vitals" in result
    assert "port" in result
    assert "probe_command" in result
    assert isinstance(result["can_receive_vitals"], bool)


if __name__ == "__main__":
    test_compact_snapshot_keeps_key_labels_only()
    test_compact_snapshot_from_readings_list()
    test_agent_snapshot_includes_id()
    test_cap_snapshots_under_limit()
    test_cap_snapshots_over_limit()
    test_compact_live_vitals_strips_descriptions()
    test_resolve_stored_vital_label()
    test_probe_obd_vitals_shape()
    print("OK")