import 'package:flutter/material.dart';
import 'package:preferences/preferences.dart';
import 'package:provider/provider.dart';
import 'package:toolheim/data/github_adapter.dart';

// TODO: Display possible errors here

class SettingsScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    GitHubAdapter github = Provider.of<GitHubAdapter>(context);

    return Scaffold(
        appBar: AppBar(title: Text('Settings')),
        body: PreferencePage([
          PreferenceTitle('GitHub'),
          PreferenceText(
              'Provide a valid GitHub repository with username and project (username/repository-name). This repository must contain warband roster files in subfolders. See the sample project for a kickstart.'),
          TextFieldPreference('Repository', 'repository'),
          PreferenceText(
              'If your warband folders are placed in a subfolder, you can specify it here.'),
          TextFieldPreference('Path', 'path', defaultVal: '/'),
          PreferenceTitle('Search for Warbands'),
          PreferenceText(
              'Search the given GitHub repository for valid Warband files (ending with .warband.yml). This step can be done at any time.'),
          FlatButton(
              onPressed: () {
                github.search();
                showDialog(
                    context: context,
                    builder: (BuildContext context) {
                      return AlertDialog(
                          title: Text('Search Warbands ...'),
                          content: Column(
                              mainAxisSize: MainAxisSize.min,
                              children: <Widget>[
                                Text(
                                    'Checking the GitHub repository for suitable files. This can take a while.'),
                                SizedBox(
                                  height: 50,
                                ),
                                Visibility(
                                    child: CircularProgressIndicator(),
                                    visible: github.isSyncInProgress),
                                Visibility(
                                  child: buildSyncErrors(context),
                                  visible: github.syncErrors.length > 0,
                                )
                              ]),
                          actions: <Widget>[
                            Visibility(
                              visible: !github.isSyncInProgress,
                              child: FlatButton(
                                child: Text('Close',
                                    style: TextStyle(color: Colors.blue)),
                                onPressed: () {
                                  if (github.syncErrors.length > 0) {
                                    Navigator.pop(context);
                                  } else {
                                    Navigator.popAndPushNamed(context, '/');
                                  }
                                },
                              ),
                            )
                          ]);
                    });
              },
              child:
                  Text('Start search', style: TextStyle(color: Colors.blue))),
        ]));

    //String _repository = 'Labernator/Mordheim';
    //String _path = 'Mordheim-BorderTownBurning/Warband Rosters';
  }

  Widget buildSyncErrors(BuildContext context) {
    List<Widget> syncErrors = new List();

    GitHubAdapter github = Provider.of<GitHubAdapter>(context);
    // TODO: Make it pretty
    github.syncErrors.forEach((error) {
      syncErrors.add(Text(error, style: TextStyle(color: Colors.red)));
    });

    return Column(children: syncErrors);
  }
}