"""Synthetic key-state checks; never reads a keyboard or records audio."""

from unittest.mock import Mock, patch

import push_to_talk as ptt

down = [ptt.key.KEY_LEFTMETA, ptt.key.KEY_D]


def check(states, expected, error=None):
    device = Mock()
    device.active_keys.side_effect = states
    device.read_loop.return_value = iter([object(), object()])
    if error:
        device.read_loop.side_effect = error
    with (
        patch.object(ptt, "list_devices", return_value=["keyboard"]),
        patch.object(ptt, "InputDevice", return_value=device),
        patch.object(ptt.signal, "signal"),
        patch.object(ptt.subprocess, "run") as run,
    ):
        try:
            ptt.main("handy")
        except (OSError, KeyboardInterrupt):
            assert error is not None
        assert [call.args[0][1] for call in run.call_args_list] == expected
    device.close.assert_called_once()


check([[]], [])  # Released before the listener starts: do not record.
check([down, []], ["--toggle-transcription", "--toggle-transcription"])
check([down, down, down, [ptt.key.KEY_D]], ["--toggle-transcription"] * 2)
check([down, down], ["--toggle-transcription", "--cancel"], OSError("unplugged"))
check([down, down], ["--toggle-transcription", "--cancel"], KeyboardInterrupt())
assert ptt.held([ptt.key.KEY_RIGHTMETA, ptt.key.KEY_D])
assert not ptt.held([ptt.key.KEY_LEFTMETA])
print("Push-to-talk release, repeat, disconnect and cancellation checks passed")