import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:life_helper/domain/catalog/catalog_item.dart';
import 'package:life_helper/domain/catalog/display_category.dart';
import 'package:life_helper/state/catalog_providers.dart';
import 'package:life_helper/ui/screens/protocol_gallery_screen.dart';

ProtocolCatalogItem _protocol(
        {required String id,
        required String title,
        required DisplayCategory dc}) =>
    ProtocolCatalogItem(
      id: id,
      title: title,
      titleEn: null,
      summary: '$title 요약',
      displayCategory: dc,
      evidenceStrength: 'strong_rct',
      referenceIds: const [],
      what: 'w',
      whenText: 'wn',
      dose: 'd',
      why: 'y',
      how: const [],
      checkText: 'c',
      caution: null,
      defaultAnchor: null,
      minDoseForStart: null,
      sourceDoc: null,
    );

void main() {
  final fakeItems = [
    _protocol(id: 'a1', title: '아침 햇빛', dc: DisplayCategory.lightCircadian),
    _protocol(id: 's1', title: '수면 스택', dc: DisplayCategory.sleep),
    _protocol(id: 's2', title: '카페인', dc: DisplayCategory.sleep),
  ];

  Widget buildHarness(List<CatalogItem> items) {
    return ProviderScope(
      overrides: [
        catalogItemsProvider.overrideWith((ref) async => items),
      ],
      child: const MaterialApp(home: ProtocolGalleryScreen()),
    );
  }

  testWidgets('카테고리 칩 + 카드 표시', (tester) async {
    await tester.pumpWidget(buildHarness(fakeItems));
    await tester.pump(); // resolve future

    // 칩: 전체 + lightCircadian + sleep (2 카테고리만 — 빈 카테고리 미표시)
    expect(find.text('전체'), findsOneWidget);
    expect(find.text('빛/일주기'), findsOneWidget);
    expect(find.text('수면'), findsOneWidget);
    expect(find.text('영양'), findsNothing); // 빈 카테고리는 안 보임

    // 카드 3개
    expect(find.text('아침 햇빛'), findsOneWidget);
    expect(find.text('수면 스택'), findsOneWidget);
    expect(find.text('카페인'), findsOneWidget);
  });

  testWidgets('칩 선택 시 필터링', (tester) async {
    await tester.pumpWidget(buildHarness(fakeItems));
    await tester.pump();

    // 수면 칩 선택
    await tester.tap(find.text('수면'));
    await tester.pump();

    expect(find.text('아침 햇빛'), findsNothing);
    expect(find.text('수면 스택'), findsOneWidget);
    expect(find.text('카페인'), findsOneWidget);
  });

  testWidgets('빈 결과 → "항목이 없습니다"', (tester) async {
    await tester.pumpWidget(buildHarness(const []));
    await tester.pump();
    expect(find.text('항목이 없습니다.'), findsOneWidget);
  });
}