import 'dart:convert';
import 'dart:io';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:package_info_plus/package_info_plus.dart';
import 'package:provider/provider.dart';
import 'package:tuple/tuple.dart';
import 'package:window_size/window_size.dart';

import 'src/app.dart';
import 'src/mixins/app_version.dart';
import 'src/model/app_settings.dart';
import 'src/model/operating_system.dart';
import 'src/model/option.dart';
import 'src/model/osicons.dart';
import 'src/model/version.dart';

Future<List<OperatingSystem>> loadOperatingSystems(bool showUbuntus) async {
  var process = await Process.run('quickget', ['--list-csv']);
  var stdout = process.stdout as String;
  var output = <OperatingSystem>[];

  OperatingSystem? currentOperatingSystem;
  Version? currentVersion;

  stdout
      .split('\n')
      .skip(1)
      .where((element) => element.isNotEmpty)
      .map((e) => e.trim())
      .forEach((element) {
    var chunks = element.split(",");
    Tuple5 supportedVersion;
    if (chunks.length == 4) // Legacy version of quickget
    {
      supportedVersion = Tuple5.fromList([...chunks, "curl"]);
    } else {
      var t5 = [chunks[0], chunks[1], chunks[2], chunks[3], chunks[4]].toList();
      supportedVersion = Tuple5.fromList(t5);
    }

    if (currentOperatingSystem?.code != supportedVersion.item2) {
      currentOperatingSystem =
          OperatingSystem(supportedVersion.item1, supportedVersion.item2);
      output.add(currentOperatingSystem!);
      currentVersion = null;
    }
    if (currentVersion?.version != supportedVersion.item3) {
      currentVersion = Version(supportedVersion.item3);
      currentOperatingSystem!.versions.add(currentVersion!);
    }
    currentVersion!.options
        .add(Option(supportedVersion.item4, supportedVersion.item5));
  });

  return output;
}

Future<void> getIcons() async {
  final manifestContent = await rootBundle.loadString('AssetManifest.json');
  final Map<String, dynamic> manifestMap = json.decode(manifestContent);
  final imagePaths = manifestMap.keys
      .where((String key) => key.contains('quickemu-icons/'))
      .where((String key) => key.contains('.svg'))
      .toList();
  for (final imagePath in imagePaths) {
    String filename = imagePath.split('/').last;
    String id = filename.substring(0, filename.lastIndexOf('.'));
    osIcons[id] = imagePath;
  }
}

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  // Don't forget to also change the size in linux/my_application.cc:50
  if (Platform.isMacOS) {
    setWindowMinSize(const Size(692 + 2, 580 + 30));
    setWindowMaxSize(const Size(692 + 2, 580 + 30));
  } else {
    setWindowMinSize(const Size(692, 580));
    setWindowMaxSize(const Size(800, 720));
  }
  final foundQuickGet = await Process.run('which', ['quickget']);
  if (foundQuickGet.exitCode == 0) {
    gOperatingSystems = loadOperatingSystems(false);
    getIcons();
    AppVersion.packageInfo = await PackageInfo.fromPlatform();
  }
  runApp(
    MultiProvider(
      providers: [
        ChangeNotifierProvider(create: (_) => AppSettings()),
      ],
      builder: (context, _) => const App(),
    ),
  );
}