import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/core/widgets/centered_toast.dart';

void main() {
  testWidgets('should_replace_previous_toast_when_shown_again', (tester) async {
    late BuildContext hostContext;
    await tester.pumpWidget(
      MaterialApp(
        home: Builder(
          builder: (context) {
            hostContext = context;
            return const Scaffold(body: SizedBox.expand());
          },
        ),
      ),
    );

    showCenteredToast(hostContext, 'first message');
    await tester.pump();
    showCenteredToast(hostContext, 'second message');
    await tester.pump();

    expect(find.byKey(const Key('centered-toast')), findsOneWidget);
    expect(find.text('second message'), findsOneWidget);
    expect(find.text('first message'), findsNothing);

    await tester.pump(const Duration(seconds: 2));
    await tester.pump(const Duration(milliseconds: 200));
    expect(find.byKey(const Key('centered-toast')), findsNothing);
  });

  testWidgets('should_allow_underlying_gesture_when_toast_is_visible', (
    tester,
  ) async {
    late BuildContext hostContext;
    var taps = 0;
    await tester.pumpWidget(
      MaterialApp(
        home: Builder(
          builder: (context) {
            hostContext = context;
            return Scaffold(
              body: GestureDetector(
                key: const Key('toast-host'),
                behavior: HitTestBehavior.opaque,
                onTap: () => taps++,
                child: const SizedBox.expand(),
              ),
            );
          },
        ),
      ),
    );
    showCenteredToast(hostContext, 'tap-through');
    await tester.pump();

    await tester.tapAt(
      tester.getCenter(find.byKey(const Key('centered-toast'))),
    );

    expect(taps, 1);
    await tester.pump(const Duration(seconds: 2));
    await tester.pump(const Duration(milliseconds: 200));
  });

  testWidgets('should_replace_toast_when_previous_toast_is_fading_out', (
    tester,
  ) async {
    late BuildContext hostContext;
    await tester.pumpWidget(
      MaterialApp(
        home: Builder(
          builder: (context) {
            hostContext = context;
            return const Scaffold(body: SizedBox.expand());
          },
        ),
      ),
    );

    showCenteredToast(hostContext, 'first message');
    await tester.pump();
    await tester.pump(const Duration(seconds: 2));
    showCenteredToast(hostContext, 'replacement message');
    await tester.pump();

    expect(tester.takeException(), isNull);
    expect(find.text('replacement message'), findsOneWidget);
    await tester.pump(const Duration(seconds: 3));
    await tester.pumpAndSettle();
  });
}