import os
import signal
import sys
import traceback

os.environ["QT_ENABLE_HIGHDPI_SCALING"] = "1"
os.environ["QT_AUTO_SCREEN_SCALE_FACTOR"] = "1"

from PyQt6.QtCore import Qt
from PyQt6.QtGui import QGuiApplication
from PyQt6.QtWidgets import QApplication

from config.settings import (
    APP_DIR,
)
from core.app import StickyNoteApp


APP_DIR.mkdir(
    parents=True,
    exist_ok=True,
)

QGuiApplication.setHighDpiScaleFactorRoundingPolicy(
    Qt.HighDpiScaleFactorRoundingPolicy.PassThrough
)


def main() -> int:
    signal.signal(
        signal.SIGINT,
        signal.SIG_DFL,
    )

    app = QApplication(sys.argv)

    app.setQuitOnLastWindowClosed(
        False
    )

    window = StickyNoteApp()

    window.show()

    try:
        return app.exec()

    except KeyboardInterrupt:
        try:
            window.safe_exit()
        except Exception:
            traceback.print_exc()

        return 0

    except SystemExit:
        return 0

    except Exception:
        traceback.print_exc()
        return 1


if __name__ == "__main__":
    raise SystemExit(main())