"""Tests for MouseModel and ai_mouse.generate()."""
from __future__ import annotations

import pytest


def test_mouse_model_init_default() -> None:
    from ai_mouse.mouse import MouseModel
    m = MouseModel()
    assert m._seq_len > 0
    assert m._session is not None
    m.close()


def test_mouse_model_generate_returns_correct_shape() -> None:
    from ai_mouse.mouse import MouseModel
    m = MouseModel()
    pts = m.generate((100, 200), (900, 400))
    assert len(pts) == 66  # 64 moves + 2 clicks
    for x, y, t in pts:
        assert isinstance(x, int)
        assert isinstance(y, int)
        assert isinstance(t, int)


def test_mouse_model_click_false_omits_clicks() -> None:
    from ai_mouse.mouse import MouseModel
    m = MouseModel()
    pts = m.generate((100, 200), (900, 400), click=False)
    assert len(pts) == 64


def test_mouse_model_seed_reproducibility() -> None:
    from ai_mouse.mouse import MouseModel
    m = MouseModel()
    a = m.generate((100, 200), (900, 400), seed=42)
    b = m.generate((100, 200), (900, 400), seed=42)
    assert a == b


def test_mouse_model_invalid_path_raises_model_load_error() -> None:
    from ai_mouse.mouse import MouseModel
    from ai_mouse.errors import ModelLoadError
    with pytest.raises(ModelLoadError):
        MouseModel(model_path="/nonexistent/path/here")