import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

import 'package:window_manager/window_manager.dart';

import 'api/oa_client.dart';
import 'app_runtime.dart';
import 'device/device_bridge.dart';
import 'desktop/desk_platform.dart';
import 'desktop/desk_theme.dart';
import 'pages/desktop_login_page.dart';
import 'pages/login_page.dart';
import 'session/session.dart';
import 'shell/home_shell.dart';
import 'theme.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await AppRuntime.load();
  if (isDesktopPlatform) {
    await windowManager.ensureInitialized();
    const windowOptions = WindowOptions(
      size: Size(1400, 900),
      center: true,
      title: '风影办公',
    );
    windowManager.waitUntilReadyToShow(windowOptions, () async {
      await windowManager.show();
      await windowManager.focus();
    });
  }
  if (!isDesktopPlatform) {
    SystemChrome.setEnabledSystemUIMode(SystemUiMode.manual, overlays: SystemUiOverlay.values);
    SystemChrome.setSystemUIOverlayStyle(const SystemUiOverlayStyle(
      statusBarColor: Colors.white,
      statusBarIconBrightness: Brightness.dark,
    ));
    DeviceBridge.preferMaxRefresh();
  }
  runApp(const FengyingApp());
}

class FengyingApp extends StatefulWidget {
  const FengyingApp({super.key});

  @override
  State<FengyingApp> createState() => _FengyingAppState();
}

class _FengyingAppState extends State<FengyingApp> {
  final session = SessionStore();
  late final OaClient api = OaClient(session);

  @override
  void initState() {
    super.initState();
    DeviceBridge.bindApi(api);
    session.addListener(_onSession);
    _boot();
  }

  Future<void> _boot() async {
    await session.load();
    if (session.signedIn) {
      try {
        final me = await api.get('/auth/me');
        if (me is Map) {
          await session.patchUser(Map<String, dynamic>.from(me));
        }
        final menus = await api.get('/system/menus');
        await session.setMenus(asMaps(menus).map(MenuNode.fromJson).toList());
        await session.connectIm();
      } catch (_) {
        await session.clear();
      }
    }
  }

  void _onSession() => setState(() {});

  @override
  void dispose() {
    session.removeListener(_onSession);
    session.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: '风影办公',
      debugShowCheckedModeBanner: false,
      theme: isDesktopPlatform ? buildDesktopTheme() : buildTheme(),
      home: !session.loaded
          ? const Scaffold(backgroundColor: Colors.white, body: Center(child: CircularProgressIndicator(color: kBind)))
          : session.signedIn
              ? HomeShell(session: session, api: api)
              : isDesktopPlatform
                  ? DesktopLoginPage(session: session, api: api)
                  : LoginPage(session: session, api: api),
    );
  }
}