#!/usr/bin/env python3
# Copyright (c) 2026 Storm Dragon
# Authors: Storm Dragon, Angus Kola
# SPDX-License-Identifier: GPL-3.0-or-later
"""Private Qt provider matching Mumble's read-only Activity log."""
import ctypes
import os
import sys

from PySide6 import QtCore, QtGui, QtWidgets

if ctypes.CDLL(None).prctl(15, sys.argv[1].encode(), 0, 0, 0) != 0:
    raise RuntimeError("Cannot set fixture process identity")

application = QtWidgets.QApplication([])
chat_window = QtWidgets.QMainWindow()
chat_window.setWindowTitle("Chat fixture")
chat_content = QtWidgets.QWidget()
chat_window.setCentralWidget(chat_content)
layout = QtWidgets.QVBoxLayout(chat_content)
transcript = QtWidgets.QTextBrowser()
transcript.setAccessibleName("Activity log")
layout.addWidget(transcript)
unrelated = QtWidgets.QTextBrowser()
unrelated.setAccessibleName("Other log")
layout.addWidget(unrelated)
chat_window.show()

foreground = QtWidgets.QMainWindow()
foreground.setWindowTitle("Foreground fixture")
foreground_content = QtWidgets.QWidget()
foreground.setCentralWidget(foreground_content)
foreground_layout = QtWidgets.QVBoxLayout(foreground_content)
editor = QtWidgets.QLineEdit()
# An editable field with the same name must never count as a transcript.
editor.setAccessibleName("Activity log")
foreground_layout.addWidget(editor)
foreground.show()
editor.setFocus()
pending_input = ""


def insert(widget, text):
    cursor = widget.textCursor()
    cursor.movePosition(QtGui.QTextCursor.MoveOperation.End)
    cursor.insertText(text)


def receive_command(*_):
    global pending_input
    content = os.read(sys.stdin.fileno(), 4096)
    if not content:
        application.quit()
        return
    pending_input += content.decode()
    while "\n" in pending_input:
        command, pending_input = pending_input.split("\n", 1)
        if command == "messages":
            insert(transcript, "[12:34:56]")
            insert(transcript, "[12:34:56] Username: hello\u2028world \ufdd0界\ufdef")
            for _ in range(2):
                insert(transcript, "[12:34:57] Repeated message")
            insert(unrelated, "Unrelated log text")
            editor.setText("Typed input")
        elif command == "barrier":
            editor.setText("Messaging barrier")
        elif command == "quit":
            application.quit()


notifier = QtCore.QSocketNotifier(sys.stdin.fileno(), QtCore.QSocketNotifier.Type.Read)
notifier.activated.connect(receive_command)
QtCore.QTimer.singleShot(0, lambda: print("ready", int(foreground.winId()), flush=True))
application.exec()