import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';
import '../providers/settings.dart';
import '../scaffolds/simple.dart';
import '../utils/constants.dart';
import '../widgets/link.dart';
import '../widgets/loading.dart';
import '../models/account.dart';
import '../widgets/avatar.dart';
// import 'login_gitlab.dart';

class LoginScreen extends StatefulWidget {
  @override
  _LoginScreenState createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> {
  Widget _buildAccountItem(AccountModel account) {
    var settings = SettingsProvider.of(context);

    return Link(
      onTap: () {
        // Navigator.of(context).pop();
        settings.setActiveAccount(
            account.platform, account.domain, account.login);
      },
      child: Container(
        padding: EdgeInsets.all(10),
        decoration: BoxDecoration(
          border: Border(bottom: BorderSide(color: Colors.black12)),
        ),
        child: Row(children: <Widget>[
          Avatar(url: account.avatarUrl, size: 24),
          Padding(padding: EdgeInsets.only(left: 10)),
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text(account.login, style: TextStyle(fontSize: 20)),
                Padding(padding: EdgeInsets.only(top: 6)),
                Text(account.domain)
              ],
            ),
          ),
          (settings.activePlatform == account.platform &&
                  settings.activeDomain == account.domain &&
                  settings.activeLogin == account.login)
              ? Icon(Icons.check)
              : Container(),
        ]),
      ),
    );
  }

  Widget _buildAddItem(
      {String text, Function onTap, WidgetBuilder screenBuilder}) {
    return Link(
      child: Container(
        padding: EdgeInsets.symmetric(vertical: 20),
        decoration: BoxDecoration(
          border: Border(bottom: BorderSide(color: Colors.black12)),
        ),
        child: Row(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Icon(Icons.add),
            Text(text, style: TextStyle(fontSize: 16)),
          ],
        ),
      ),
      onTap: onTap,
      screenBuilder: screenBuilder,
    );
  }

  @override
  Widget build(BuildContext context) {
    var settings = SettingsProvider.of(context);

    List<AccountModel> accounts = [];
    settings.accountMap.forEach((platform, v0) {
      v0.forEach((domain, v1) {
        v1.forEach((login, v2) {
          accounts.add(AccountModel(
            avatarUrl: v2.avatarUrl,
            token: v2.token,
            platform: platform,
            domain: domain,
            login: login,
          ));
        });
      });
    });

    return SimpleScaffold(
      title: Text('Select account'),
      bodyBuilder: () {
        if (settings.loading) {
          return Center(child: Loading());
        }

        return Container(
          child: Column(
            children: settings.githubAccountMap.entries
                .map<Widget>((entry) => _buildAccountItem(AccountModel(
                    avatarUrl: entry.value.avatarUrl,
                    token: entry.value.token,
                    platform: PlatformType.github,
                    domain: 'https://github.com',
                    login: entry.key)))
                .toList()
                  ..addAll(accounts.map(_buildAccountItem))
                  ..addAll([
                    _buildAddItem(
                      text: 'GitHub Account',
                      onTap: () {
                        var state = settings.generateRandomString();
                        launch(
                          'https://github.com/login/oauth/authorize?client_id=$clientId&redirect_uri=gittouch://login&scope=user%20repo&state=$state',
                        );
                      },
                    ),
                    // _buildAddItem(
                    //   text: 'GitLab Account',
                    //   screenBuilder: (_) => LoginGitlabScreen(),
                    // )
                  ]),
          ),
        );
      },
    );
  }
}