"""PySide6 GUI package entry point."""

from __future__ import annotations

import os
import sys

from .. import appconfig
from ..version import APP_NAME, display_name
from . import widgets as _widgets
from .widgets import *

QT_IMPORT_ERROR = _widgets.QT_IMPORT_ERROR
QMessageBox = _widgets._RawQMessageBox
run_worker = _widgets._raw_run_worker if QT_IMPORT_ERROR is None else _widgets.run_worker

if QT_IMPORT_ERROR is None:
    from .models import ApplyTaskTableModel, GenerateTaskTableModel, TaskTableModel
    from .workers import (
        AccountLoginCheckWorker,
        AIModelTestWorker,
        CMHubSettingsWorker,
        ApplyWorker,
        CollectWorker,
        GenerateWorker,
        WriteBackWorker,
    )
    from .tabs.accounts import AccountDialog, AccountsTab
    from .tabs.apply import ApplyTab
    from .tabs.collect import CollectTab
    from .tabs.generate import GenerateTab
    from .tabs.settings import SettingsTab
    from .main_window import MainWindow
else:
    class MainWindow(QMainWindow):
        def __init__(self):
            raise RuntimeError(f"{APP_NAME} GUI 无法启动：当前 Python 环境未安装 PySide6。")


def _ensure_offscreen_for_headless_tests():
    if "PYTEST_CURRENT_TEST" in os.environ and "QT_QPA_PLATFORM" not in os.environ:
        os.environ["QT_QPA_PLATFORM"] = "offscreen"


def main() -> int:
    if QT_IMPORT_ERROR is not None:
        print(f"{APP_NAME} GUI 无法启动：当前 Python 环境未安装 PySide6。")
        return 1
    _ensure_offscreen_for_headless_tests()
    app = QApplication.instance() or QApplication(sys.argv)
    try:
        appconfig.prepare_data_dir()
    except appconfig.DataMigrationConflictError as exc:
        QMessageBox.critical(None, "数据迁移冲突", str(exc))
        return 1
    except appconfig.DataDirectoryWriteError as exc:
        QMessageBox.critical(None, "数据目录不可写", str(exc))
        return 1
    except appconfig.ConfigError as exc:
        QMessageBox.critical(None, "启动配置错误", str(exc))
        return 1
    window = MainWindow()
    window.show()
    return app.exec()