@Tags(<String>['integration', 'postgres'])
library;

import 'dart:convert';

import 'package:cyberhybridhub_server/firebase_auth.dart';
import 'package:cyberhybridhub_server/handlers/question_source_handler.dart';
import 'package:cyberhybridhub_server/question_source_preferences_db.dart';
import 'package:cyberhybridhub_server/questions_db.dart';
import 'package:postgres/postgres.dart';
import 'package:shelf/shelf.dart';
import 'package:test/test.dart';

import '../helpers/test_db.dart';

class _FakeAuthVerifier extends FirebaseAuthVerifier {
  _FakeAuthVerifier() : super('test-key');

  @override
  Future<String?> verifyBearerToken(String? authorization) async {
    if (authorization == null || !authorization.startsWith('Bearer ')) {
      return null;
    }
    final String token = authorization.substring('Bearer '.length).trim();
    return token.isEmpty ? null : token;
  }
}

Future<Response> _get(
  Handler handler, {
  required String path,
  String? bearer,
}) {
  return Future<Response>.value(
    handler(
      Request(
        'GET',
        Uri.parse('http://localhost$path'),
        headers: <String, String>{
          if (bearer != null) 'Authorization': 'Bearer $bearer',
        },
      ),
    ),
  );
}

Future<Response> _put(
  Handler handler, {
  required String path,
  required Map<String, dynamic> body,
  String? bearer,
}) {
  return Future<Response>.value(
    handler(
      Request(
        'PUT',
        Uri.parse('http://localhost$path'),
        body: jsonEncode(body),
        headers: <String, String>{
          if (bearer != null) 'Authorization': 'Bearer $bearer',
          'Content-Type': 'application/json',
        },
      ),
    ),
  );
}

void main() {
  TestDb? testDb;
  late Handler handler;
  late QuestionSourcePreferencesDb preferencesDb;

  setUpAll(() async {
    testDb = await TestDb.open();
    if (testDb == null) {
      return;
    }
    preferencesDb = testDb!.questionSourcePreferencesDb;
    handler = questionSourceHandler(
      db: preferencesDb,
      auth: _FakeAuthVerifier(),
    );
  });

  tearDown(() async {
    if (testDb != null) {
      await testDb!.truncateTradingTables();
    }
  });

  tearDownAll(() async {
    await testDb?.close();
  });

  test('GET returns defaults for unknown user', () async {
    if (testDb == null) {
      markTestSkipped('Set DATABASE_URL or TEST_DATABASE_URL for integration tests');
      return;
    }

    final Response response = await _get(
      handler,
      path: questionSourcesBasePath,
      bearer: 'prefs-user',
    );

    expect(response.statusCode, 200);
    final Map<String, dynamic> body =
        jsonDecode(await response.readAsString()) as Map<String, dynamic>;
    final List<dynamic> sources = body['sources'] as List<dynamic>;
    expect(sources.length, 2);
    expect(sources.first['id'], 'market_history');
  });

  test('PUT persists preferences and GET returns saved mix', () async {
    if (testDb == null) {
      markTestSkipped('Set DATABASE_URL or TEST_DATABASE_URL for integration tests');
      return;
    }

    const String uid = 'prefs-save-user';
    await testDb!.seedUser(uid);

    final Response putResponse = await _put(
      handler,
      path: questionSourcesBasePath,
      bearer: uid,
      body: <String, dynamic>{
        'sources': <Map<String, dynamic>>[
          <String, dynamic>{'id': 'market_history', 'enabled': true, 'ratio': 80},
          <String, dynamic>{'id': 'spelling', 'enabled': false, 'ratio': 20},
        ],
      },
    );
    expect(putResponse.statusCode, 200);

    final Response getResponse = await _get(
      handler,
      path: questionSourcesBasePath,
      bearer: uid,
    );
    expect(getResponse.statusCode, 200);
    final Map<String, dynamic> body =
        jsonDecode(await getResponse.readAsString()) as Map<String, dynamic>;
    final List<dynamic> sources = body['sources'] as List<dynamic>;
    final Map<String, dynamic> market = sources.firstWhere(
      (dynamic source) => source['id'] == 'market_history',
    ) as Map<String, dynamic>;
    expect(market['ratio'], 80);
  });

  test('ensureProspectiveQuestionQueued skips batch when market_history disabled',
      () async {
    if (testDb == null) {
      markTestSkipped('Set DATABASE_URL or TEST_DATABASE_URL for integration tests');
      return;
    }

    const String uid = 'prefs-disabled-market-user';
    await testDb!.seedUser(uid);
    await preferencesDb.save(
      uid,
      <Map<String, dynamic>>[
        <String, dynamic>{'id': 'market_history', 'enabled': false, 'ratio': 50},
        <String, dynamic>{'id': 'spelling', 'enabled': false, 'ratio': 50},
      ],
    );

    final QuestionsDb questionsDb = testDb!.questionsDb;
    final service = testDb!.questionService();
    await questionsDb.ensureUserExists(uid);
    await service.ensureProspectiveQuestionQueued(uid);

    final Result rows = await testDb!.connection.execute(
      Sql.named(
        '''
        SELECT COUNT(*)::int
        FROM questions
        WHERE assigned_user_id = @uid
        ''',
      ),
      parameters: <String, dynamic>{'uid': uid},
    );
    expect(rows.first[0], 0);
  });
}