# -*- coding: utf-8 -*-

import logging

import sys

from typing import Optional

from qtpy.QtWidgets import QApplication, QMessageBox, QWidget

def _msgbox(

parent: Optional[QWidget], title: str, text: str, detailed_text: str = ""

) -> QMessageBox:

msgbox = QMessageBox(parent)

if sys.platform == "darwin":

# Window titles are ignored for macOS "Alerts"; use setText() instead.

# See https://doc.qt.io/qt-5/qmessagebox.html#the-property-based-api

msgbox.setText(title)

msgbox.setInformativeText(text)

else:

msgbox.setWindowTitle(title)

msgbox.setText(text)

msgbox.setDetailedText(detailed_text)

return msgbox

def info(

parent: Optional[QWidget], title: str, text: str, detailed_text: str = ""

) -> Optional[int]:

logging.info("%s: %s %s", title, text, detailed_text)

if not QApplication.instance():

return None

msgbox = _msgbox(parent, title, text)

msgbox.setIcon(QMessageBox.Information)

return msgbox.exec_()

def question(

parent: Optional[QWidget], title: str, text: str

) -> Optional[bool]:

if not QApplication.instance():

return None

msgbox = _msgbox(parent, title, text)

msgbox.setIcon(QMessageBox.Question)

msgbox.setStandardButtons(QMessageBox.Yes | QMessageBox.No)

msgbox.setDefaultButton(QMessageBox.Yes)

if msgbox.exec_() == QMessageBox.Yes:

return True

return False

def error(

parent: Optional[QWidget], title: str, text: str, detailed_text: str = ""

) -> Optional[int]:

logging.error("%s: %s %s", title, text, detailed_text)

if not QApplication.instance():

return None

msgbox = _msgbox(parent, title, text, detailed_text)

msgbox.setIcon(QMessageBox.Critical)

return msgbox.exec_()

def critical(title: str, text: str, detailed_text: str = "") -> None:

logging.critical("%s: %s %s", title, text, detailed_text)

if QApplication.instance():

msgbox = _msgbox(None, title, text, detailed_text)

msgbox.setIcon(QMessageBox.Critical)

msgbox.exec_()

from twisted.internet import reactor

from twisted.internet.error import ReactorNotRunning

try:

reactor.stop() # type: ignore

except ReactorNotRunning:

pass