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

import 'package:cyberhybridhub_server/alpaca/alpaca_assets_client.dart';
import 'package:cyberhybridhub_server/alpaca/alpaca_env.dart';
import 'package:cyberhybridhub_server/trading/tradable_assets_db.dart';
import 'package:cyberhybridhub_server/trading/tradable_assets_sync.dart';
import 'package:http/http.dart' as http;
import 'package:postgres/postgres.dart';
import 'package:test/test.dart';

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

void main() {
  TestDb? testDb;
  late FixtureLoader fixtures;
  late AlpacaEnv env;

  setUpAll(() async {
    testDb = await TestDb.open();
    fixtures = FixtureLoader();
    env = AlpacaEnv.fromMap(<String, String>{
      'ALPACA_API_KEY_ID': 'test-key',
      'ALPACA_API_SECRET_KEY': 'test-secret',
      'ALPACA_TRADING_BASE_URL': 'https://paper-api.alpaca.markets',
    });
  });

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

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

  TradableAssetsSync makeSync({required MockHttpClient mock}) {
    return TradableAssetsSync(
      assetsClient: AlpacaAssetsClient(env: env, httpClient: mock),
      assetsDb: TradableAssetsDb(testDb!.connection),
      connection: testDb!.connection,
    );
  }

  test(
      'runOnce with the fixture upserts 5 assets and writes a universe '
      'sync_runs row with finished_at',
      () async {
    if (testDb == null) {
      markTestSkipped(
        'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
      );
      return;
    }

    final String body = await fixtures.loadString('alpaca_assets_active.json');
    final MockHttpClient mock = MockHttpClient()
      ..whenGet(
        '/v2/assets',
        http.Response(body, 200, headers: <String, String>{
          'content-type': 'application/json',
        }),
      );

    final TradableAssetsSync sync = makeSync(mock: mock);
    final TradableAssetsSyncResult result = await sync.runOnce();

    expect(result.error, isNull);
    expect(result.rowsWritten, 5);

    final List<String> active = await TradableAssetsDb(testDb!.connection)
        .listActiveTradableSymbols();
    expect(
      active.toSet(),
      <String>{'AAPL', 'MSFT', 'SPY', 'BRK.B'},
      reason: 'PNKZZ has tradable=false and must be excluded',
    );

    final Result runs = await testDb!.connection.execute(
      '''
      SELECT kind, rows_written, rows_removed, error,
             started_at, finished_at
      FROM market_data_sync_runs
      ORDER BY id ASC
      ''',
    );
    expect(runs, hasLength(1));
    final ResultRow row = runs.first;
    expect(row[0], 'universe');
    expect((row[1]! as num).toInt(), 5);
    expect((row[2]! as num).toInt(), 0);
    expect(row[3], isNull, reason: 'no error on happy path');
    expect(row[4], isNotNull);
    expect(row[5], isNotNull);
  });

  test(
      'runOnce records the error when the Alpaca client throws and does '
      'not propagate the exception',
      () async {
    if (testDb == null) {
      markTestSkipped(
        'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
      );
      return;
    }

    final MockHttpClient mock = MockHttpClient()
      ..whenGet(
        '/v2/assets',
        http.Response('upstream exploded', 500),
      );

    final TradableAssetsSync sync = makeSync(mock: mock);

    // Must not throw — failures get recorded, not raised.
    final TradableAssetsSyncResult result = await sync.runOnce();

    expect(result.rowsWritten, 0);
    expect(result.error, isNotNull);
    expect(result.error, contains('500'));

    final Result runs = await testDb!.connection.execute(
      '''
      SELECT kind, rows_written, error, finished_at
      FROM market_data_sync_runs
      ORDER BY id ASC
      ''',
    );
    expect(runs, hasLength(1));
    expect(runs.first[0], 'universe');
    expect((runs.first[1]! as num).toInt(), 0);
    expect(runs.first[2]?.toString(), contains('500'));
    expect(runs.first[3], isNotNull,
        reason: 'finished_at must always be set, even on failure');
  });

  test('two consecutive runs produce identical row counts (idempotent)',
      () async {
    if (testDb == null) {
      markTestSkipped(
        'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
      );
      return;
    }

    final String body = await fixtures.loadString('alpaca_assets_active.json');
    final MockHttpClient mock = MockHttpClient()
      ..whenGet(
        '/v2/assets',
        http.Response(body, 200, headers: <String, String>{
          'content-type': 'application/json',
        }),
      );

    final TradableAssetsSync sync = makeSync(mock: mock);
    final TradableAssetsSyncResult r1 = await sync.runOnce();
    final TradableAssetsSyncResult r2 = await sync.runOnce();

    expect(r1.rowsWritten, 5);
    expect(r2.rowsWritten, 5);
    expect(r1.error, isNull);
    expect(r2.error, isNull);

    final Result count = await testDb!.connection
        .execute("SELECT COUNT(*) FROM tradable_assets WHERE status = 'active'");
    expect((count.first[0]! as num).toInt(), 5);

    final Result runs = await testDb!.connection
        .execute('SELECT COUNT(*) FROM market_data_sync_runs');
    expect((runs.first[0]! as num).toInt(), 2);
  });
}