import 'package:flutter_test/flutter_test.dart';
import 'package:life_helper/core/constants.dart';
import 'package:life_helper/data/db/app_database.dart';
import 'package:life_helper/data/seed/seed_importer.dart';

const _protocols = '''
[
  {
    "id": "morning_sunlight",
    "category": "light_circadian",
    "title": "아침 햇빛",
    "what": "기상 후 햇빛.",
    "when": "기상 후 30~60분.",
    "dose": "5~10분.",
    "why": "ipRGC 자극.",
    "how": ["나간다", "쳐다본다"],
    "check": "60분 이내 외출",
    "source_doc": "huberman-protocols.md"
  }
]
''';

const _breakProtocols = '''
[
  {
    "id": "alcohol",
    "category": "alcohol",
    "title": "음주",
    "huberman_summary": "ep 86",
    "phases": [{"week": 1, "what": "환경 정리"}],
    "default_common_frames": ["dopamine_reset"]
  }
]
''';

const _commonFrames = '''
[
  {
    "id": "dopamine_reset",
    "title": "도파민 리셋",
    "what": "30일 절제",
    "why": "수용체 회복",
    "check": "30일 무자극"
  }
]
''';

const _methodologies = '''
[
  {
    "id": "atomic_habits",
    "name": "Atomic Habits",
    "originator": "James Clear",
    "one_line_definition": "1% 개선",
    "core_unit": "1회 행동",
    "huberman_fit_score": 5,
    "is_core_engine": true
  }
]
''';

const _framePatterns = '''
[
  {
    "id": "fp_alcohol",
    "domain": "drink",
    "avoidance_keyword": "술 끊기",
    "l0_example": "술 끊기",
    "l2_suggestion": "저녁엔 무알콜",
    "l3_identity": "맑은 정신 추구"
  }
]
''';

const _rewardMenuItems = '''
[
  {
    "id": "rmi_walk",
    "tier_recommended": "T1",
    "title": "산책 30분"
  }
]
''';

const _references = '''
[
  {
    "id": "ref_x",
    "kind": "url",
    "title": "Sample",
    "url": "https://example.com"
  }
]
''';

const _dietPatterns = '''
[
  {
    "id": "med",
    "name": "지중해 식단",
    "core": "올리브유 + 채소",
    "evidence_strength": "strong"
  }
]
''';

Future<String> _stubLoader(String path) async {
  switch (path) {
    case 'assets/seed/protocols.json':
      return _protocols;
    case 'assets/seed/break_protocols.json':
      return _breakProtocols;
    case 'assets/seed/common_frames.json':
      return _commonFrames;
    case 'assets/seed/methodologies.json':
      return _methodologies;
    case 'assets/seed/frame_patterns.json':
      return _framePatterns;
    case 'assets/seed/reward_menu_items.json':
      return _rewardMenuItems;
    case 'assets/seed/references.json':
      return _references;
    case 'assets/seed/diet_patterns.json':
      return _dietPatterns;
  }
  throw StateError('unexpected asset: $path');
}

void main() {
  late AppDatabase db;

  setUp(() {
    db = AppDatabase.memory();
  });

  tearDown(() async {
    await db.close();
  });

  test('first run: imports all 8 catalogs and sets marker', () async {
    final importer = SeedImporter(db, loadAsset: _stubLoader);
    final ran = await importer.importIfNeeded();
    expect(ran, true);

    expect((await db.select(db.protocols).get()).length, 1);
    expect((await db.select(db.breakProtocols).get()).length, 1);
    expect((await db.select(db.commonFrames).get()).length, 1);
    expect((await db.select(db.methodologies).get()).length, 1);
    expect((await db.select(db.framePatterns).get()).length, 1);
    expect((await db.select(db.rewardMenuItems).get()).length, 1);
    expect((await db.select(db.references).get()).length, 1);
    expect((await db.select(db.dietPatterns).get()).length, 1);

    final marker = await (db.select(db.metaKv)
          ..where((t) => t.key.equals(kSeededV1Flag)))
        .getSingleOrNull();
    expect(marker?.value, 'true');
  });

  test('idempotent: second run is no-op', () async {
    final importer = SeedImporter(db, loadAsset: _stubLoader);
    await importer.importIfNeeded();
    final ran2 = await importer.importIfNeeded();
    expect(ran2, false);
    expect((await db.select(db.protocols).get()).length, 1);
  });

  test('partial failure rolls back (transactional)', () async {
    Future<String> brokenLoader(String path) async {
      if (path.endsWith('diet_patterns.json')) {
        // Trigger a CHECK violation: evidence_strength must be one of the allowed values.
        return '''
[{"id":"bad","name":"X","core":"Y","evidence_strength":"bogus"}]
''';
      }
      return _stubLoader(path);
    }

    final importer = SeedImporter(db, loadAsset: brokenLoader);
    await expectLater(importer.importIfNeeded(), throwsA(isA<Object>()));

    expect((await db.select(db.protocols).get()).length, 0);
    final marker = await (db.select(db.metaKv)
          ..where((t) => t.key.equals(kSeededV1Flag)))
        .getSingleOrNull();
    expect(marker, isNull);
  });
}