import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

import 'package:flutter_test/flutter_test.dart';

import 'package:sxchnge_theme_example/main.dart';

void main() {
  testWidgets('consumer bundles the package font and its license', (
    tester,
  ) async {
    await tester.pumpWidget(const ThemeExample());
    final manifest =
        jsonDecode(await rootBundle.loadString('FontManifest.json')) as List;
    final family = manifest.cast<Map>().singleWhere(
      (font) => font['family'] == 'packages/sxchnge_theme/Onest',
    );
    final asset = (family['fonts'] as List).first['asset'] as String;
    expect((await rootBundle.load(asset)).lengthInBytes, greaterThan(1000));
    expect(
      await rootBundle.loadString(
        'packages/sxchnge_theme/assets/fonts/OFL.txt',
      ),
      contains('SIL OPEN FONT LICENSE'),
    );
  });

  for (final mode in [ThemeMode.light, ThemeMode.dark]) {
    testWidgets(
      '$mode renders on a narrow screen with large text and accepts input',
      (tester) async {
        tester.view.physicalSize = const Size(320, 900);
        tester.view.devicePixelRatio = 1;
        tester.platformDispatcher.textScaleFactorTestValue = 2;
        addTearDown(tester.view.resetPhysicalSize);
        addTearDown(tester.view.resetDevicePixelRatio);
        addTearDown(tester.platformDispatcher.clearTextScaleFactorTestValue);
        await tester.pumpWidget(ThemeExample(mode: mode));
        await tester.pumpAndSettle();
        expect(tester.takeException(), isNull);
        await tester.enterText(find.byType(TextField).first, '125.50');
        expect(find.text('125.50'), findsOneWidget);
        await tester.ensureVisible(find.text('Continue'));
        await tester.pumpAndSettle();
        expect(tester.takeException(), isNull);
      },
    );
  }
}