import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';

import 'package:mobile_sidebar/mobile_sidebar.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: ThemeData.light(),
      home: HomeScreen(),
    );
  }
}

class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  int index = 0;
  bool searching = false;
  bool _loggedIn = false;
  @override
  Widget build(BuildContext context) {
    return MobileSidebar(
      currentIndex: index,
      onTabChanged: (val) {
        if (mounted)
          setState(() {
            index = val;
          });
      },
      isSearching: searching,
      isSearchChanged: (val) {
        if (mounted)
          setState(() {
            searching = val;
          });
      },
      titleBuilder: (context) {
        return FancyTitle(
          title: Text("My Logo"),
          logo: FlutterLogo(),
        );
      },
      accountBuilder: (context) {
        if (_loggedIn) {
          return Padding(
            padding: const EdgeInsets.all(8.0),
            child: InkWell(
              onTap: () {
                if (mounted)
                  setState(() {
                    _loggedIn = false;
                  });
              },
              child: CircleAvatar(
                child: Icon(Icons.person),
              ),
            ),
          );
        }
        return FlatButton(
          child: Text("Sign In"),
          onPressed: () {
            if (mounted)
              setState(() {
                _loggedIn = true;
              });
          },
        );
      },
      showSearchButton: true,
      tabs: <TabChild>[
        TabChild(
          icon: Icon(Icons.bluetooth),
          title: 'Light Blue',
          builder: (context) => NewScreen(
            color: Colors.lightBlue,
            name: 'Light Blue Screen',
          ),
        ),
        TabChild(
          icon: Icon(Icons.info),
          title: 'Light Green',
          builder: (context) => NewScreen(
            color: Colors.lightGreen,
            name: 'Light Green Screen',
          ),
        ),
        TabChild(
          icon: Icon(Icons.person),
          title: 'Red',
          builder: (context) => NewScreen(
            color: Colors.red,
            name: 'Red Screen',
          ),
        ),
        TabChild(
          icon: Icon(Icons.info),
          title: 'Light Green 3',
          builder: (context) => NewScreen(
            color: Colors.lightGreen,
            name: 'Light Green Screen',
          ),
        ),
        TabChild(
          icon: Icon(Icons.person),
          title: 'Red 3',
          builder: (context) => NewScreen(
            color: Colors.red,
            name: 'Red Screen',
          ),
        ),
        TabChild(
          icon: Icon(Icons.info),
          title: 'Light Green 4',
          builder: (context) => NewScreen(
            color: Colors.lightGreen,
            name: 'Light Green Screen',
          ),
        ),
        TabChild(
          icon: Icon(Icons.person),
          title: 'Red 4',
          builder: (context) => NewScreen(
            color: Colors.red,
            name: 'Red Screen',
          ),
        ),
      ],
    );
  }
}

class FancyTitle extends StatelessWidget {
  const FancyTitle({
    Key key,
    @required this.title,
    this.logo,
  }) : super(key: key);

  final Widget title;
  final Widget logo;

  @override
  Widget build(BuildContext context) {
    return Row(
      children: <Widget>[
        logo,
        Container(width: 4.0),
        title,
      ],
    );
  }
}

class NewScreen extends StatelessWidget {
  const NewScreen({
    Key key,
    @required this.color,
    @required this.name,
  }) : super(key: key);

  final Color color;
  final String name;

  @override
  Widget build(BuildContext context) {
    return Container(
      color: color,
      child: Center(
        child: RaisedButton.icon(
          icon: Icon(Icons.arrow_right),
          label: Text("Push to Screen"),
          onPressed: () {
            Navigator.of(context).push(MaterialPageRoute(
              builder: (_) => Scaffold(
                appBar: AppBar(),
                body: NewScreen(color: color, name: name),
              ),
            ));
          },
        ),
      ),
    );
  }
}