#!/usr/bin/env python3
# Copyright (c) 2026 Storm Dragon
# Authors: Storm Dragon, Angus Kola
# SPDX-License-Identifier: GPL-3.0-or-later
"""Minimal Toby Doom Launcher combo-box fixture for native diagnostics."""
from PySide6.QtCore import Qt
from PySide6.QtWidgets import QApplication, QComboBox, QLabel, QLineEdit, QPushButton, QVBoxLayout, QWidget


class AccessibleComboBox(QComboBox):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setEditable(True)
        self.lineEdit().setReadOnly(True)
        self.pageStep = 5

    def keyPressEvent(self, event):
        current_index = self.currentIndex()
        item_count = self.count()
        if event.key() == Qt.Key_PageUp:
            self.setCurrentIndex(max(0, current_index - self.pageStep))
        elif event.key() == Qt.Key_PageDown:
            self.setCurrentIndex(min(item_count - 1, current_index + self.pageStep))
        elif event.key() == Qt.Key_Home:
            self.setCurrentIndex(0)
            self.setFocus()
            self.currentIndexChanged.emit(0)
            self.activated.emit(0)
        elif event.key() == Qt.Key_End:
            last_index = item_count - 1
            self.setCurrentIndex(last_index)
            self.setFocus()
            self.currentIndexChanged.emit(last_index)
            self.activated.emit(last_index)
        else:
            super().keyPressEvent(event)


application = QApplication([])
window = QWidget()
window.setWindowTitle("Toby combo probe")
layout = QVBoxLayout(window)
label = QLabel("Game")
combo = AccessibleComboBox()
combo.setAccessibleName("Game")
combo.addItems(("Classic Doom", "Bring Back the 90s", "Funny Pack - Toby Doom"))
label.setBuddy(combo)
layout.addWidget(label)
layout.addWidget(combo)
button = QPushButton("Launch")
layout.addWidget(button)
editor = QLineEdit("alpha beta")
editor.setAccessibleName("Plain editor")
layout.addWidget(editor)
read_only = QLineEdit("alpha beta")
read_only.setReadOnly(True)
read_only.setAccessibleName("Read-only text")
layout.addWidget(read_only)
writable_combo = QComboBox()
writable_combo.setEditable(True)
writable_combo.addItems(("alpha beta", "gamma delta"))
layout.addWidget(writable_combo)
window.resize(420, 300)
window.show()
combo.setFocus()
application.exec()