import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:patbond_flutter/core/theme/app_theme.dart';
import 'package:patbond_flutter/core/widgets/primary_button.dart';

Widget wrap(Widget child) {
  return MaterialApp(
    theme: buildAppTheme(),
    home: Scaffold(body: Center(child: child)),
  );
}

void main() {
  testWidgets('默认态显示文字，点击触发回调', (tester) async {
    var tapped = 0;
    await tester.pumpWidget(
      wrap(PrimaryButton(label: '登录', onPressed: () => tapped++)),
    );

    expect(find.text('登录'), findsOneWidget);
    await tester.tap(find.byType(PrimaryButton));
    expect(tapped, 1);
  });

  testWidgets('loading 态显示转圈、隐藏文字且不可点击', (tester) async {
    var tapped = 0;
    await tester.pumpWidget(
      wrap(
        PrimaryButton(label: '登录', isLoading: true, onPressed: () => tapped++),
      ),
    );

    expect(find.byType(CircularProgressIndicator), findsOneWidget);
    expect(find.text('登录'), findsNothing);

    await tester.tap(find.byType(PrimaryButton), warnIfMissed: false);
    await tester.pump();
    expect(tapped, 0);

    // loading 不是禁用态：填充保持 primaryStrong，尺寸保持 52 高。
    final button = tester.widget<FilledButton>(find.byType(FilledButton));
    expect(button.onPressed, isNull);
    expect(
      button.style?.backgroundColor?.resolve({WidgetState.disabled}),
      AppColors.primaryStrong,
    );
    expect(tester.getSize(find.byType(PrimaryButton)).height, 52);
  });

  testWidgets('onPressed 为 null 时进入禁用态', (tester) async {
    await tester.pumpWidget(wrap(const PrimaryButton(label: '登录')));

    final button = tester.widget<FilledButton>(find.byType(FilledButton));
    expect(button.onPressed, isNull);
    expect(find.text('登录'), findsOneWidget);
    expect(find.byType(CircularProgressIndicator), findsNothing);
  });
}