import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'login';
import '../matrix/cs-r0.5.0';
import 'room';

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, @required this.settings}) : super(key: key);

  final SharedPreferences settings;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  Map<String, String> roomMap = Map<String, String>();

  void _updateRooms() {
    Matrix.joinedRooms(
      widget.settings.getString("home_server"),
      widget.settings.getString("access_token")
    ).then((r) {
     for (String roomid in r) {
        Matrix.roomAtribute(
          widget.settings.getString("home_server"),
          widget.settings.getString("access_token"),
          roomid,
          "name",
          "name",
        ).then((roomname) {
          setState(() {
              roomMap[roomid] = roomname;
          });
        });
      }
    });
  }

  void _logout() {
    var set = widget.settings;
    set.setBool("logged_in", false);
    // TODO Actually invalidate access_token
    Matrix.logout(uri: Uri.parse(set.getString("home_server")) , accessToken: set.getString("access_token"));
    set.setString("access_token", "");
    Navigator.pushReplacement(
      context, MaterialPageRoute(builder: (BuildContext context) => LoginPage(settings: widget.settings)));
  }

  void initState() {
    _updateRooms();
    print(Matrix.supportedVersions(widget.settings.getString("home_server"))); 
    Matrix.sync(uri: Uri.parse(widget.settings.getString("home_server")), accessToken: widget.settings.getString("access_token"));
    super.initState();
  }

  List<Widget> roomEntries(roomMap) {
    List<Widget> newWidgets = new List<Widget>();
    roomMap.forEach((roomid, roomname) {
    if (roomname == null || roomname == "")  { roomname = roomid; }
    newWidgets.add(
      ListTile(
        title: Text((roomname)),
          onTap: () {
            Navigator.push(
              context,
              MaterialPageRoute(
                builder: (context) => RoomPage(settings: widget.settings, roomid: roomid, roomname: roomname),
              ),
            );

          }
        )
      );
    });
    return newWidgets;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Hermes"),
        actions: <Widget>[
          IconButton(
            icon: Icon(Icons.link_off),
            tooltip: "Logout",
            onPressed: _logout,
          ),
        ],
      ),
      body: Center(
        child: ListView(
          padding: EdgeInsets.all(8.0),
          children: roomEntries(roomMap)
        ),
      ),
    );
  }
}