import 'package:flutter/material.dart';

import 'api/api.dart';
import 'pilot_location.dart';
import 'rid/rid_service.dart';
import 'services.dart';
import 'session/session_controller.dart';
import 'theme.dart';
import 'ui/login_page.dart';
import 'ui/shell.dart';
import 'uplink/uplink.dart';

/// PilotVault Fly Agent: runs next to DJI Fly and never controls the aircraft.
/// It listens to the aircraft's Remote ID broadcast, streams the paired
/// aircraft's position to PilotVault, and files the flight in the logbook.
/// See REA/DJI Fly/PilotVault_FlyAgentApp_Plan.md for the phase plan.
Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  final Api api = Api();
  final RidService rid = RidService();
  final PilotLocation pilot = PilotLocation();
  final Uplink uplink = Uplink(rid: rid, pilot: pilot);
  final SessionController sessions = SessionController(api: api, rid: rid);
  await api.init();
  await rid.init();
  await sessions.init();
  runApp(Services(
    api: api,
    rid: rid,
    pilot: pilot,
    uplink: uplink,
    sessions: sessions,
    child: const AgentApp(),
  ));
}

class AgentApp extends StatelessWidget {
  const AgentApp({super.key});

  @override
  Widget build(BuildContext context) {
    final Api api = Services.of(context).api;
    return MaterialApp(
      title: 'PV Fly Agent',
      debugShowCheckedModeBanner: false,
      theme: PV.theme(),
      home: ListenableBuilder(
        listenable: api,
        builder: (BuildContext context, _) => api.isAuthed ? const AgentShell() : const LoginPage(),
      ),
    );
  }
}