"""The things only real Windows can verify.

Skipped everywhere else, so the suite stays green on Linux while these stay honest:
they are the reason `display_available()` and the capture backend are more than an
assertion about a code path. The `windows-latest` CI job runs them, and so does a
Windows machine with `-m pytest tests/test_windows_platform.py`.
"""

import os
import platform

import pytest

WINDOWS = platform.system() == "Windows"

pytestmark = pytest.mark.skipif(not WINDOWS, reason="needs real Windows")


def test_display_available_says_so_on_windows():
    from tiny_computer_agent import display_available

    ok, detail = display_available()
    assert ok is True
    assert "Windows" in detail


def test_capture_returns_the_real_screen():
    from tiny_computer_agent import GrabScreen

    observation = GrabScreen(monitor=1).capture()
    frame = observation.frame
    assert frame.width > 100 and frame.height > 100
    sampled = {pixel for row in list(frame.resize((8, 8)).getdata()) for pixel in [row]}
    assert len(sampled) > 1, "the screenshot came back as one flat colour"


def test_a_detector_that_needs_nothing_still_indexes_the_screen():
    from tiny_computer_agent import GrabScreen, make_detector

    frame = GrabScreen(monitor=1).capture().frame
    assert len(make_detector("grid").detect(frame)) == 96


def test_ui_automation_is_reported_truthfully():
    from tiny_computer_agent import accessibility_available

    ok, detail = accessibility_available("uia")
    assert isinstance(ok, bool) and detail


def test_the_doctor_reports_a_ready_windows_desktop():
    from tiny_computer_agent import run_checks

    checks = {check.name: check for check in run_checks(brain="planner", detector="grid")}
    assert checks["display server"].ok is True
    assert checks["pillow"].ok is True


@pytest.mark.skipif(os.environ.get("TINY_COMPUTER_AGENT_LIVE_TEST") != "1",
                    reason="moves the real mouse: opt in, and use a throwaway desktop")
def test_the_real_mouse_goes_where_it_is_asked():
    pyautogui = pytest.importorskip("pyautogui")

    pyautogui.moveTo(120, 140)
    assert abs(pyautogui.position().x - 120) <= 2
    assert abs(pyautogui.position().y - 140) <= 2