gecko/lib/providers/home.dart

import 'dart:convert';
import 'dart:io';
import 'dart:math';
// import 'package:audioplayers/audio_cache.dart';
// import 'package:audioplayers/audioplayers.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'dart:async';
import 'package:gecko/globals.dart';
import 'package:hive_flutter/hive_flutter.dart';
import 'package:flutter/foundation.dart' show kIsWeb;
import 'package:path_provider/path_provider.dart' as pp;
import 'package:package_info_plus/package_info_plus.dart';

class HomeProvider with ChangeNotifier {
  bool? isSearching;
  Icon searchIcon = const Icon(Icons.search);
  final TextEditingController searchQuery = TextEditingController();
  Widget appBarTitle = Text('Ğecko', style: TextStyle(color: Colors.grey[850]));
  Widget appBarExplorer =
      Text('Explorateur', style: TextStyle(color: Colors.grey[850]));

  bool isFirstBuild = true;
  // AudioCache player = AudioCache(prefix: 'sounds/');

  Future<void> initHive() async {
    late Directory hivePath;

    if (!kIsWeb) {
      if (Platform.isLinux || Platform.isMacOS) {
        final home = Platform.environment['HOME'];
        hivePath = Directory('$home/.gecko/db');
      } else if (Platform.isWindows) {
        final home = Platform.environment['UserProfile'];
        hivePath = Directory('$home/.gecko/db');
      } else if (Platform.isAndroid || Platform.isIOS) {
        final home = await pp.getApplicationDocumentsDirectory();
        hivePath = Directory('${home.path}/db');
      }
      if (!await hivePath.exists()) {
        await hivePath.create(recursive: true);
      }
      await Hive.initFlutter(hivePath.path);
    } else {
      await Hive.initFlutter();
    }
  }

  Future<String> getAppVersion() async {
    String version;
    String buildNumber;
    PackageInfo packageInfo = await PackageInfo.fromPlatform();
    version = packageInfo.version;
    buildNumber = packageInfo.buildNumber;

    notifyListeners();
    return version + '+' + buildNumber;
  }

  Future<String?> getValidEndpoint() async {
    List _listEndpoints = await rootBundle
        .loadString('config/gva_endpoints.json')
        .then((jsonStr) => jsonDecode(jsonStr));
    _listEndpoints.shuffle();

    int i = 0;
    String? _endpoint;
    int _statusCode = 0;

    final _client = HttpClient();
    _client.connectionTimeout = const Duration(milliseconds: 1000);

    do {
      i++;
      log.d(i.toString() + ' ème essai de recherche de endpoint GVA.');
      log.d('Try GVA endpoint: ${_listEndpoints[i - 1]}');
      int listLenght = _listEndpoints.length - 1;
      if (i > listLenght) {
        log.e('NO VALID GVA ENDPOINT FOUND');
        _endpoint = 'HS';
        break;
      }
      if (i != 0) {
        await Future.delayed(const Duration(milliseconds: 300));
      }

      try {
        final request = await _client.postUrl(Uri.parse(_listEndpoints[i]));
        final response = await request.close();

        _endpoint = _listEndpoints[i];
        _statusCode = response.statusCode;
      } on TimeoutException catch (_) {
        log.e('This endpoint is timeout, next');
        _statusCode = 50;
        continue;
      } on SocketException catch (_) {
        log.e('This endpoint is a bad endpoint, next');
        _statusCode = 70;
        continue;
      } on Exception {
        log.e('Unknown error');
        _statusCode = 60;
        continue;
      }
    } while (_statusCode != 400);

    log.i('ENDPOINT: ' + _endpoint!);
    return _endpoint;
  }

  T getRandomElement<T>(List<T> list) {
    final random = Random();
    var i = random.nextInt(list.length);
    return list[i];
  }

  void handleSearchStart() {
    isSearching = true;
    notifyListeners();
  }

  // void playSound(String customSound, double volume) async {
  //   await player.play('$customSound.wav',
  //       volume: volume, mode: PlayerMode.LOW_LATENCY, stayAwake: false);
  // }

  void handleSearchEnd() {
    searchIcon = Icon(
      Icons.search,
      color: Colors.grey[850],
    );
    appBarTitle = Text('Ğecko', style: TextStyle(color: Colors.grey[850]));
    appBarExplorer =
        Text('Explorateur', style: TextStyle(color: Colors.grey[850]));
    isSearching = false;
    searchQuery.clear();

    notifyListeners();
  }

  void snackNode(context) {
    if (isFirstBuild) {
      String _message;
      if (endPointGVA == 'HS') {
        _message =
            "Aucun noeud Duniter disponible, veuillez réessayer ultérieurement";
      } else {
        _message = "Vous êtes connecté au noeud\n${endPointGVA.split('/')[2]}";
      }
      final snackBar = SnackBar(
          content: Text(_message), duration: const Duration(seconds: 2));
      isFirstBuild = false;
      ScaffoldMessenger.of(context).showSnackBar(snackBar);
    }
  }

  void rebuildWidget() {
    notifyListeners();
  }
}