// Author: fruit.com.cn
// 职责：验证共用简介的短文案、展开声明、内容更新与减少动画行为。
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/core/theme/app_colors.dart';
import 'package:fruitshorts/core/theme/app_theme.dart';
import 'package:fruitshorts/l10n/app_localizations.dart';
import 'package:fruitshorts/pages/player/widgets/expandable_synopsis.dart';

const _width = 300.0;
const _shortCopy = 'A short story.';
const _longCopy =
    'A hidden promise brings two families together after years apart. '
    'Every secret leads them closer to an unexpected truth. '
    'Their journey through the city changes everything they once believed.';
const _toggle = Key('player-synopsis-more');
const _expanded = Key('player-synopsis-expanded');
const _collapsed = Key('player-synopsis');
const _footer = Text('Author declaration', key: Key('test-author-note'));
const _motionSample = Duration(milliseconds: 80);

Future<void> _pump(
  WidgetTester tester, {
  String synopsis = _longCopy,
  bool disableAnimations = false,
}) async {
  await tester.pumpWidget(
    MaterialApp(
      theme: AppTheme.dark(),
      locale: const Locale('en'),
      localizationsDelegates: AppLocalizations.localizationsDelegates,
      supportedLocales: AppLocalizations.supportedLocales,
      home: Builder(
        builder: (context) => MediaQuery(
          data: MediaQuery.of(
            context,
          ).copyWith(disableAnimations: disableAnimations),
          child: Scaffold(
            body: Align(
              alignment: Alignment.bottomLeft,
              child: SizedBox(
                width: _width,
                child: ExpandableSynopsis(
                  synopsis: synopsis,
                  keyPrefix: 'player',
                  expandedFooter: _footer,
                ),
              ),
            ),
          ),
        ),
      ),
    ),
  );
}

void main() {
  testWidgets('should_use_video_copy_color_when_player_does_not_override', (
    tester,
  ) async {
    await _pump(tester, synopsis: _shortCopy);
    final synopsis = tester.widget<Text>(find.byKey(_collapsed));
    expect(synopsis.style?.color, AppColors.homeFeedVideoCopy);
  });

  testWidgets('should_hide_toggle_when_synopsis_fits_two_lines', (
    tester,
  ) async {
    await _pump(tester, synopsis: _shortCopy);
    expect(find.byKey(_toggle), findsNothing);
    expect(tester.widget<Text>(find.byKey(_collapsed)).maxLines, 2);
    expect(find.byKey(_footer.key!), findsNothing);
  });

  testWidgets('should_render_no_copy_when_synopsis_is_empty', (tester) async {
    await _pump(tester, synopsis: '');
    expect(find.byKey(_collapsed), findsNothing);
    expect(find.byKey(_toggle), findsNothing);
    expect(find.byKey(_footer.key!), findsNothing);
  });

  testWidgets('should_only_show_author_note_when_synopsis_is_expanded', (
    tester,
  ) async {
    await _pump(tester);
    final toggle = find.byKey(_toggle);
    final toggleRect = tester.getRect(toggle);
    expect(find.byKey(_footer.key!), findsNothing);
    await tester.tap(toggle);
    await tester.pumpAndSettle();
    expect(find.byKey(_expanded), findsOneWidget);
    expect(find.byKey(_footer.key!), findsOneWidget);
    expect(tester.getRect(toggle), toggleRect);
    await tester.tap(toggle);
    await tester.pumpAndSettle();
    expect(find.byKey(_collapsed), findsOneWidget);
    expect(find.byKey(_footer.key!), findsNothing);
    expect(tester.getRect(toggle), toggleRect);
  });

  testWidgets('should_collapse_again_when_synopsis_changes', (tester) async {
    await _pump(tester);
    await tester.tap(find.byKey(_toggle));
    await tester.pumpAndSettle();
    expect(find.byKey(_expanded), findsOneWidget);
    await _pump(tester, synopsis: '$_longCopy $_shortCopy');
    await tester.pumpAndSettle();
    expect(find.byKey(_expanded), findsNothing);
    expect(find.byKey(_collapsed), findsOneWidget);
    expect(find.byKey(_footer.key!), findsNothing);
  });

  testWidgets('should_toggle_immediately_when_animations_are_disabled', (
    tester,
  ) async {
    await _pump(tester, disableAnimations: true);
    await tester.pumpAndSettle();
    expect(find.byKey(const Key('player-synopsis-size')), findsNothing);
    await tester.tap(find.byKey(_toggle));
    await tester.pump();
    expect(find.byKey(_expanded), findsOneWidget);
    expect(find.byKey(_footer.key!), findsOneWidget);
    final expandedRect = tester.getRect(find.byKey(_expanded));
    await tester.pump(_motionSample);
    expect(tester.getRect(find.byKey(_expanded)), expandedRect);
  });
}