import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:twp_softphone/app.dart';
import 'package:twp_softphone/screens/login_screen.dart';

void main() {
  group('TwpSoftphoneApp', () {
    testWidgets('shows loading indicator on startup', (tester) async {
      await tester.pumpWidget(const TwpSoftphoneApp());
      expect(find.byType(TwpSoftphoneApp), findsOneWidget);
      expect(find.bySubtype<CircularProgressIndicator>(), findsOneWidget);
    });
  });

  group('LoginScreen', () {
    testWidgets('renders server URL field and connect button', (tester) async {
      await tester.pumpWidget(
        MaterialApp(
          home: LoginScreen(onLoginSuccess: (_) {}),
        ),
      );
      await tester.pump(const Duration(milliseconds: 100));
      expect(find.text('Server URL'), findsOneWidget);
      expect(find.text('Connect'), findsOneWidget);
      expect(find.text('TWP Softphone'), findsOneWidget);
    });

    testWidgets('validates empty server URL on submit', (tester) async {
      await tester.pumpWidget(
        MaterialApp(
          home: LoginScreen(onLoginSuccess: (_) {}),
        ),
      );
      await tester.pump(const Duration(milliseconds: 100));
      await tester.tap(find.text('Connect'));
      await tester.pump();
      expect(find.text('Required'), findsOneWidget);
    });
  });
}