import 'package:aitrainer_app/util/message_state.dart';
import 'package:aitrainer_app/util/session.dart';
import 'package:aitrainer_app/widgets/home.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:aitrainer_app/util/loading_screen.dart';

class LoadingScreenMain extends StatefulWidget {
  @override
  LoadingScreenMainState createState() => LoadingScreenMainState();
}

class LoadingScreenMainState extends State<LoadingScreenMain> {

  @override
  Widget build(BuildContext context) {
    Image _backgroundImage = Image.asset('asset/WT01_loading_layers.png',
      fit: BoxFit.cover,
      height: double.infinity,
      width: double.infinity,
      alignment: Alignment.center,
    );
    dynamic _timer = <dynamic>[TimeMessages.timer];
    return Scaffold(
        body: LoadingScreen(
          initializers: _timer,
          navigateToWidget: AitrainerHome(),
          loaderColor: Colors.yellow,
          image: _backgroundImage,
          backgroundColor: Colors.black,
          styleTextUnderTheLoader: TextStyle(
              fontSize: 14.0,
              fontWeight: FontWeight.bold,
              color: Colors.lightGreenAccent),
        )
    );
  }


}

class TimeMessages {
  static Future timer(MessageState state, Function callback) async {
    //while (true) {
      await Future.delayed(Duration(seconds: 2), () {
        state.setMessage = DateTime.now().toIso8601String();
        print("---- TimeMessages initializer");
        Session session = Session();
        session.fetchSessionAndNavigate(callback);
      });
    //}
  }
}