import 'dart:collection';

import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'package:toolheim/WarbandRoaster.dart';
import 'package:yaml/yaml.dart';

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

class Toolheim extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Toolheim',
      theme: ThemeData(
        primarySwatch: Colors.brown,
        accentColor: Colors.grey,
      ),
      home: RoasterWidget(),
    );
  }
}

class RoasterWidget extends StatefulWidget {
  @override
  _RoasterWidgetState createState() => _RoasterWidgetState();
}

class _RoasterWidgetState extends State<RoasterWidget> {
  Future<WarbandRoaster> roaster;

  static Future<WarbandRoaster> fetchWarband(urlPath) async {
    http.Response response = await http.get(urlPath);
    YamlMap yamlObject = loadYaml(response.body);
    return WarbandRoaster.fromJson(yamlObject);
  }

  void initState() {
    super.initState();
    roaster = fetchWarband(players()['Aaron']);
  }

  HashMap players() {
    HashMap players = new HashMap();
    players['Aaron'] = 'https://raw.githubusercontent.com/Labernator/Mordheim/master/Mordheim-BorderTownBurning/Warband%20Rosters/Aaron/aaron.mordheim.yml';
    players['Kai'] = 'https://raw.githubusercontent.com/Labernator/Mordheim/master/Mordheim-BorderTownBurning/Warband%20Rosters/kai/kai.mordheim_post5.yml';
    players['Fabian'] = 'https://raw.githubusercontent.com/Labernator/Mordheim/master/Mordheim-BorderTownBurning/Warband%20Rosters/Fabian/fabian.mordheim.yml';
    players['Marius'] = 'https://raw.githubusercontent.com/Labernator/Mordheim/master/Mordheim-BorderTownBurning/Warband%20Rosters/Marius/Marius_Post_5.mordheim.yml';
    players['Stefan'] = 'https://raw.githubusercontent.com/Labernator/Mordheim/master/Mordheim-BorderTownBurning/Warband%20Rosters/Stefan/Pit%20Fighter.yml';

    return players;
  }

  List<Widget> playerList() {
    List<Widget> tiles = new List();

    // Show some stats for the own warband
    tiles.add(UserAccountsDrawerHeader(
      accountName: Text('The Revolting Dwarfs'),
      accountEmail: Text('Dwarf Rangers'),
      currentAccountPicture: CircleAvatar(
        child: Text('Aa'),
      ),
    ));

    // TODO: Order Players on CP or rating

    players().forEach((player, url) {
      tiles.add(ListTile(
        title: Text(player.toString()),
        leading: CircleAvatar(
          child: Text('WB'),
        ),
        trailing: Chip(
          label: Text('326 XP')
        )
      ));
    });

    tiles.add(Divider());

    return tiles;
  }

  @override
  Widget build(BuildContext context) {
    return FutureBuilder(
        future: roaster,
        builder: (BuildContext context, AsyncSnapshot snapshot) {
          switch (snapshot.connectionState) {
            case ConnectionState.none:
            case ConnectionState.waiting:
            case ConnectionState.active:
              return Center(child: CircularProgressIndicator());
            case ConnectionState.done:
              WarbandRoaster roaster = snapshot.data;
              return Scaffold(
                appBar: AppBar(
                  title: Text(roaster.name),
                ),
                drawer: Drawer(
                  child: Column(
                    children: this.playerList()
                  ),
                ),
                body: ListView.builder(
                  itemCount: roaster.heros.length + roaster.henchmenGroups.length,
                  itemBuilder: (BuildContext context, int index) {
                    // TODO: Sort by initiative
                    if (index < roaster.heros.length) {
                      var hero = roaster.heros[index];

                      return ListTile(
                        title: Text(hero.name),
                        leading: CircleAvatar(
                          child: Text(hero.experience.toString()),
                          backgroundColor: Colors.green,
                          foregroundColor: Colors.greenAccent,
                        ),
                        subtitle: Text(hero.type),
                      );
                    } else {
                      var henchmenGroup = roaster.henchmenGroups[index-roaster.heros.length];

                      return ListTile(
                        title: Text(henchmenGroup.name),
                        trailing: Chip(
                          label: Text(henchmenGroup.number.toString() + 'x')
                        ),
                        leading: CircleAvatar(
                          child: Text(henchmenGroup.experience.toString()),
                          backgroundColor: Colors.orange,
                          foregroundColor: Colors.white,
                        ),
                        subtitle: Text(henchmenGroup.type),
                      );
                    }
                  }
                )
              );
          }
        }
    );
  }
}