"""Overlay base projector: session cache and no fisheye resize fallback."""

from __future__ import annotations

import numpy as np

from orisys_app_shared.analysis.overlay_base import OverlayBaseProjector


def test_overlay_projector_reuses_the_same_frame_id() -> None:
    calls: list[int] = []

    def project(frame: np.ndarray) -> np.ndarray:
        calls.append(1)
        out = np.zeros((8, 8, 3), dtype=np.uint8)
        out[..., 1] = 40
        return out

    projector = OverlayBaseProjector(sensor_type="finger", project=project)
    first = projector.project(np.zeros((32, 32, 3), dtype=np.uint8), frame_id=7)
    second = projector.project(np.ones((32, 32, 3), dtype=np.uint8) * 9, frame_id=7)
    assert len(calls) == 1
    assert first is second
    third = projector.project(np.zeros((32, 32, 3), dtype=np.uint8), frame_id=8)
    assert len(calls) == 2
    assert third is not second
    projector.close()


def test_open_from_unknown_sensor_type_returns_none() -> None:
    class _Prov:
        sensor_type = "unknown"
        sensor_config_ref = ""

    assert OverlayBaseProjector.open_from_provenance(_Prov()) is None