#!/usr/bin/env python3
"""
Launcher for macOS .app bundle: starts the Flask server bound to 127.0.0.1 and opens the default browser.
"""
import os
import time
import threading
import webbrowser

# Import the Flask app defined in app.py
from app import app


def _run_server():
    port = int(os.environ.get("PORT", 5000))
    # Bind to loopback only for local use
    app.run(host="127.0.0.1", port=port, debug=False, use_reloader=False)


if __name__ == "__main__":
    t = threading.Thread(target=_run_server, daemon=True)
    t.start()

    # Give the server a moment to start
    time.sleep(1.0)

    port = os.environ.get("PORT", "5000")
    url = f"http://127.0.0.1:{port}/"
    try:
        webbrowser.open(url)
    except Exception:
        # If opening the browser fails, just continue; user can open manually
        pass

    try:
        # Keep the main thread alive while the server thread runs
        while t.is_alive():
            t.join(0.5)
    except KeyboardInterrupt:
        pass