"""Tests for consistent keyboard activation of push buttons."""

import pytest

from PySide6.QtCore import Qt
from PySide6.QtTest import QTest
from PySide6.QtWidgets import QApplication, QCheckBox, QDialogButtonBox, QPushButton

from src.accessibility.button_keyboard import install_button_keyboard_support


@pytest.fixture(scope="module")
def app():
    application = QApplication.instance() or QApplication([])
    keyboardFilter = install_button_keyboard_support(application)
    yield application
    application.removeEventFilter(keyboardFilter)


@pytest.mark.parametrize("key", (Qt.Key_Return, Qt.Key_Enter))
def test_enter_activates_focused_push_button(app, key):
    button = QPushButton("Clear selection")
    clicks = []
    button.clicked.connect(lambda: clicks.append(True))
    button.show()
    button.setFocus()

    QTest.keyClick(button, key)

    assert clicks == [True]


def test_enter_does_not_activate_disabled_push_button(app):
    button = QPushButton("Clear play cue")
    clicks = []
    button.clicked.connect(lambda: clicks.append(True))
    button.setEnabled(False)

    QTest.keyClick(button, Qt.Key_Return)

    assert clicks == []


def test_enter_activates_dialog_button_box_buttons(app):
    buttonBox = QDialogButtonBox(QDialogButtonBox.Close)
    closeButton = buttonBox.button(QDialogButtonBox.Close)
    clicks = []
    closeButton.clicked.connect(lambda: clicks.append(True))

    QTest.keyClick(closeButton, Qt.Key_Return)

    assert clicks == [True]


def test_modified_enter_is_not_treated_as_button_activation(app):
    button = QPushButton("Clear selection")
    clicks = []
    button.clicked.connect(lambda: clicks.append(True))

    QTest.keyClick(button, Qt.Key_Return, Qt.ControlModifier)

    assert clicks == []


def test_enter_handling_is_limited_to_push_buttons(app):
    checkbox = QCheckBox("Select")
    checkbox.setChecked(False)

    QTest.keyClick(checkbox, Qt.Key_Return)

    assert not checkbox.isChecked()