from __future__ import annotations

import toga

from .data.db import init_database
from .ui.main_window import build_main_window


class FunkyJuiceRecipesApp(toga.App):
    def __init__(self, name: str, identifier: str):
        # Debug prints to verify lifecycle entry
        print("FunkyJuiceRecipesApp.__init__ starting", flush=True)
        # Important: call super().__init__ so Toga can wire up lifecycle hooks
        super().__init__(name, identifier)
        print("FunkyJuiceRecipesApp.__init__ finished", flush=True)

    def startup(self) -> None:
        # Initialize database and run migrations before showing UI
        print("startup() entered", flush=True)
        self._db = init_database(self)
        print("db initialized; building window…", flush=True)

        # Build the main window with a simple content-switching layout
        self.main_window = build_main_window(self)
        print("showing window…", flush=True)
        self.main_window.show()
    # def startup(self) -> None:
    #     # Initialize database and run migrations before showing UI
    #     # Keep a handle so we can close it on exit
    #     self._db = init_database(self)
    #
    #     # Build the main window with a simple content-switching layout
    #     self.main_window = build_main_window(self)
    #     print("about to show main window")
    #     self.main_window.show()

    def on_exit(self) -> None:
        # Close DB connection cleanly to avoid resource warnings
        db = getattr(self, "_db", None)
        try:
            if db is not None:
                db.close()
        except Exception:
            pass


def main() -> FunkyJuiceRecipesApp:
    """Entry point for Briefcase and CLI execution.

    Returns a constructed, not-yet-started app instance.
    """
    print("main() starting")
    return FunkyJuiceRecipesApp("funkyjuicerecipes", "com.targonproducts.funkyjuicerecipes")


if __name__ == "__main__":
    app = main()
    app.main_loop()