import 'dart:async';

import 'package:flutter/widgets.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';

import '../log/log.dart';

class TokenT {
  String token;
  String domain;

  TokenT(this.token, this.domain);
}

class Token {
  static final Token _token = Token._();
  final _storage = const FlutterSecureStorage();

  String _tokenval = "";
  String _domain = "";

  static Token getInstance() {
    return _token;
  }

  Future<TokenT?> getToken() async {
    var completer = Completer<TokenT?>();

    if (_tokenval == "" || _domain == "") {
      Log.d("reading token store");
      WidgetsFlutterBinding.ensureInitialized();
      final token = await _storage.read(key: 'jwt');
      final domain = await _storage.read(key: 'domain');

      // check if value is defined in phone store
      if (token != null && domain != null) {
        _tokenval = token;
        _domain = domain;
        completer.complete(TokenT(token, domain));
      } else {
        Log.d("no token defined");
        completer.complete(null);
      }
    } else {
      completer.complete(TokenT(_tokenval, _domain));
    }
    return completer.future;
  }

  void setToken(String token, String domain) {
    _tokenval = token;
    _domain = domain;
    _storage.write(key: 'jwt', value: token);
    _storage.write(key: 'domain', value: domain);
  }

  Token._();
}