"""Application entry point."""

from __future__ import annotations

import os
import sys
from pathlib import Path


def main() -> int:
    from PySide6.QtGui import QIcon
    from PySide6.QtWidgets import QApplication

    from . import APP_NAME
    from .gui.main_window import MainWindow
    from .tools import app_dir

    app = QApplication(sys.argv)
    app.setApplicationName(APP_NAME)
    app.setOrganizationName("ffwrap")
    app.setStyle("Fusion")

    # Bundled by PyInstaller into sys._MEIPASS, or next to the sources.
    base = Path(getattr(sys, "_MEIPASS", app_dir()))
    icon = base / "assets" / "icon.png"
    if icon.exists():
        app.setWindowIcon(QIcon(str(icon)))

    win = MainWindow()
    win.show()
    # Files passed on the command line (or dropped onto the executable).
    args = [Path(a) for a in sys.argv[1:] if not a.startswith("-")]
    if args:
        win.add_paths(args)

    # Build verification: FFWRAP_SMOKE_TEST=shot.png saves a screenshot after start-up and exits.
    shot = os.environ.get("FFWRAP_SMOKE_TEST")
    if shot:
        from PySide6.QtCore import QTimer

        def finish():
            win.grab().save(shot)
            app.exit(0 if win.tools else 3)
        QTimer.singleShot(4000, finish)
    return app.exec()