mchess-client/lib/pages/lobby_selector.dart

import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:mchess/utils/passphrase.dart';

class LobbySelector extends StatefulWidget {
  const LobbySelector({super.key});

  @override
  State<LobbySelector> createState() => _LobbySelectorState();
}

class _LobbySelectorState extends State<LobbySelector> {
  final phraseController = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ElevatedButton(
              onPressed: () {
                context.goNamed('createGame');
              },
              child: const Row(
                mainAxisSize: MainAxisSize.min,
                children: [
                  Icon(Icons.lock),
                  SizedBox(
                    width: 10,
                  ),
                  Text('Create private game')
                ],
              ),
            ),
            const SizedBox(height: 20),
            ElevatedButton(
              onPressed: () {
                buildEnterPassphraseDialog(context);
              },
              child: const Row(
                mainAxisSize: MainAxisSize.min,
                children: [
                  Icon(Icons.mail),
                  SizedBox(
                    width: 10,
                  ),
                  Text('Join private game')
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }

  Future<void> buildEnterPassphraseDialog(BuildContext context) {
    return showDialog<void>(
      context: context,
      builder: (BuildContext context) {
        return ScaffoldMessenger(
          child: Builder(builder: (builderContext) {
            return Scaffold(
              backgroundColor: Colors.transparent,
              body: AlertDialog(
                title: const Text('Enter the passphrase here:'),
                content: TextField(
                  controller: phraseController,
                  onSubmitted: (val) => submitAction(val),
                  decoration: InputDecoration(
                      hintText: 'Enter passphrase here',
                      suffixIcon: IconButton(
                        onPressed: () => submitAction(phraseController.text),
                        icon: const Icon(Icons.check),
                      )),
                ),
                actions: <Widget>[
                  TextButton(
                    child: const Text('Cancel'),
                    onPressed: () {
                      builderContext.pop();
                    },
                  ),
                ],
              ),
            );
          }),
        );
      },
    );
  }

  void submitAction(String phrase) {
    context.goNamed('game', pathParameters: {'phrase': phrase.toURL()});
    phraseController.clear();
  }
}