import 'package:flutter/material.dart';
import 'package:robo_advisory/models/wallet.dart';
import 'package:robo_advisory/screens/dashboard/local_widgets/bottom_navigation.dart';
import 'package:robo_advisory/screens/home/home.dart';
import 'package:robo_advisory/screens/fund_transfer/fund_transfer.dart';
import 'package:robo_advisory/screens/settlement/settlement.dart';
import 'package:robo_advisory/screens/history/history.dart';
import 'package:robo_advisory/widgets/drawer.dart';
import 'package:provider/provider.dart';
import 'package:robo_advisory/providers/wallet_provider.dart';
import 'package:flutter_spinkit/flutter_spinkit.dart';

// TODO: temp
import 'dart:async';

class DashboardScreen extends StatefulWidget {
  @override
  _DashboardScreenState createState() => _DashboardScreenState();
}

class _DashboardScreenState extends State<DashboardScreen> {
  final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();

  void _openEndDrawer() {
    _scaffoldKey.currentState.openEndDrawer();
  }

  int _selectedIndex = 0;
  bool loadingData = true;
  Wallet walletData;

  void _onItemTapped(int index) {
    setState(() {
      _selectedIndex = index;
    });
  }

  void initState() {
    WalletProvider walletProvider =
        Provider.of<WalletProvider>(context, listen: false);
    walletProvider.loadWallet().then((value) {
      if (value.totalAssets != null) {
        Timer(Duration(seconds: 3), () {
          setState(() {
            loadingData = false;
            walletData = value;
          });
          print(value.totalAssets);
        });
      }
    });
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    var currentTab = [
      HomeScreen(
        toggleDrawer: _openEndDrawer,
        wallet: walletData,
      ),
      FundTransferScreen(),
      SettlementScreen(),
      HistoryScreen(),
    ];
    return Scaffold(
        key: _scaffoldKey,
        backgroundColor: Colors.white,
        body: loadingData
            ? Container(
                child: Center(
                  child: SpinKitFadingFour(
                    color: Colors.black,
                    size: 100.0,
                  ),
                ),
              )
            : currentTab[_selectedIndex],
        endDrawer: AppDrawer(),
        bottomNavigationBar: BottomNavigation(
          selectedIndex: _selectedIndex,
          onItemTapped: _onItemTapped,
        ));
  }
}