"""Fluency CAD - Main entry point.

This module is intentionally thin. The actual UI lives in the
``fluency.ui`` package:

    ui.dialogs           – 4 modal dialogs (Extrude, Revolve, Offset, WorkplaneOrientation)
    ui.viewer_widget     – Viewer3DWidget (3D canvas)
    ui.sketch_widget     – Sketch2DWidget (2D sketcher + constraint solver)
    ui.main_window       – MainWindow (application shell)

The public classes are re-exported here so that existing call sites
that do ``from fluency.main import MainWindow`` (notably
``tests/test_geometry.py``) keep working.
"""

from __future__ import annotations

import logging
import sys

from PySide6.QtWidgets import QApplication

from fluency.ui.dialogs import (
    ExtrudeDialog,
    OffsetDialog,
    RevolveDialog,
    WorkplaneOrientationDialog,
)
from fluency.ui.main_window import MainWindow
from fluency.ui.sketch_widget import Sketch2DWidget
from fluency.ui.viewer_widget import Viewer3DWidget

__all__ = [
    "MainWindow",
    "Sketch2DWidget",
    "Viewer3DWidget",
    "ExtrudeDialog",
    "RevolveDialog",
    "OffsetDialog",
    "WorkplaneOrientationDialog",
    "main",
]


def main() -> int:
    """Launch the Fluency CAD application.

    Returns the ``QApplication.exec()`` exit code so that the console-script
    entry point declared in ``pyproject.toml`` can forward it.
    """
    app = QApplication(sys.argv)
    app.setStyle("Fusion")

    window = MainWindow()
    window.show()

    return app.exec()


if __name__ == "__main__":
    sys.exit(main())