import 'dart:io';

import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:halkyon_app/halkyon_app.dart';
import 'package:halkyon_learn_flutter/src/app/learn_frame.dart';
import 'package:halkyon_learn_flutter/src/app/learn_sessions.dart';
import 'package:halkyon_learn_flutter/src/core/bloc/app_bloc_observer.dart';
import 'package:halkyon_learn_flutter/src/core/country/country_names.dart';
import 'package:halkyon_learn_flutter/src/core/dependencies/dependencies.dart';
import 'package:halkyon_learn_flutter/src/core/device_settings/widget/device_settings_scope.dart';
import 'package:halkyon_learn_flutter/src/core/theme/cjk_fonts.dart';
import 'package:halkyon_learn_flutter/src/feature/dictionary/data/mecab_license.dart';
import 'package:halkyon_learn_flutter/src/feature/geo_map/data/cldr_license.dart';
import 'package:halkyon_learn_flutter/src/feature/kanji/data/kanjivg_license.dart';
import 'package:halkyon_ui/halkyon_ui.dart';
import 'package:material_ui/material_ui.dart';
import 'package:path/path.dart' as p;
import 'package:serverpod_flutter/serverpod_flutter.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  Bloc.observer = const AppBlocObserver();
  registerFontLicenses();
  registerCjkFontLicenses();
  registerKanjiVgLicense();
  registerFlagIconsLicense();
  registerCldrLicense();
  registerMecabLicenses();
  // The instance the build names (`--dart-define=SERVER_URL=…`, or
  // `assets/config.json`): the first offered, and the one installs from
  // before the choice go on with.
  final builtIn = Instance.parse(await getServerUrl())!;
  final device = await DeviceParts.create(builtIn: builtIn);
  final instances = InstanceChoice(
    FileInstanceStore(File(p.join(device.support, 'instances.json'))),
    builtIn: builtIn,
    forget: device.storage.forget,
  );
  await instances.load(usedBefore: device.storage.usedBefore());
  runApp(
    InstanceGate(
      frame: learnFrame,
      choice: instances,
      // Only an instance of Halkyon Learn: one of another Halkyon app's
      // answers too, but holds nothing of this app's.
      checker: ServerpodInstanceChecker(app: 'learn'),
      countryNames: AssetCountryNames(),
      open: (instance) => Dependencies.create(instance, device),
      readLook: () async => (await device.deviceSettingsStore.read()).look,
      app: const LearnSessions(),
    ),
  );
}