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

import 'package:cyberhybridhub_server/trading/market_data_db.dart';
import 'package:cyberhybridhub_server/trading/market_history_four_hour_slot.dart';
import 'package:test/test.dart';

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

void main() {
  TestDb? testDb;

  setUpAll(() async {
    testDb = await TestDb.open();
  });

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

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

  test('insertSnapshot then latestForSymbol returns newest by as_of', () async {
    if (testDb == null) {
      markTestSkipped('Set DATABASE_URL or TEST_DATABASE_URL for integration tests');
      return;
    }

    final MarketDataDb db = testDb!.marketDataDb;
    final DateTime older = DateTime.utc(2026, 5, 23, 10);
    final DateTime newer = DateTime.utc(2026, 5, 23, 11);

    await db.insertSnapshot(
      symbol: 'SPY',
      metric: 'last_trade',
      price: 490,
      asOf: older,
    );
    await db.insertSnapshot(
      symbol: 'SPY',
      metric: 'last_trade',
      price: 492,
      asOf: newer,
    );

    final MarketDataSnapshot? latest =
        await db.latestForSymbol('SPY', 'last_trade');

    expect(latest, isNotNull);
    expect(latest!.price, 492);
    expect(
      latest.asOf.toUtc().millisecondsSinceEpoch,
      greaterThan(older.toUtc().millisecondsSinceEpoch),
    );
  });

  group('upsertSnapshot', () {
    test('re-upsert updates price and raw without duplicating row', () async {
      if (testDb == null) {
        markTestSkipped(
          'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
        );
        return;
      }

      final MarketDataDb db = testDb!.marketDataDb;
      final DateTime asOf = DateTime.utc(2026, 5, 23, 13);

      await db.upsertSnapshot(
        symbol: 'SPY',
        metric: 'bar',
        timeframe: '1Day',
        asOf: asOf,
        price: 500,
        volume: 1000,
        raw: <String, dynamic>{'c': 500, 'v': 1000},
      );
      await db.upsertSnapshot(
        symbol: 'SPY',
        metric: 'bar',
        timeframe: '1Day',
        asOf: asOf,
        price: 505,
        volume: 1100,
        raw: <String, dynamic>{'c': 505, 'v': 1100},
      );

      final List<MarketDataSnapshot> rows = await db.barsForSymbol(
        symbol: 'SPY',
        timeframe: '1Day',
        since: asOf.subtract(const Duration(seconds: 1)),
        until: asOf.add(const Duration(seconds: 1)),
      );

      expect(rows, hasLength(1));
      expect(rows.single.price, 505);
      expect(rows.single.volume, 1100);
      expect(rows.single.raw?['c'], 505);
      expect(rows.single.raw?['v'], 1100);
    });
  });

  group('barsForSymbol', () {
    test('returns rows ordered by as_of ASC within [since, until)', () async {
      if (testDb == null) {
        markTestSkipped(
          'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
        );
        return;
      }

      final MarketDataDb db = testDb!.marketDataDb;
      final DateTime t1 = DateTime.utc(2026, 5, 20);
      final DateTime t2 = DateTime.utc(2026, 5, 21);
      final DateTime t3 = DateTime.utc(2026, 5, 22);

      for (final DateTime t in <DateTime>[t1, t2, t3]) {
        await db.upsertSnapshot(
          symbol: 'SPY',
          metric: 'bar',
          timeframe: '1Day',
          asOf: t,
          price: t.day.toDouble(),
        );
      }

      final List<MarketDataSnapshot> rows = await db.barsForSymbol(
        symbol: 'SPY',
        timeframe: '1Day',
        since: t1,
        until: t3,
      );

      expect(rows, hasLength(2));
      expect(rows.map((MarketDataSnapshot r) => r.asOf), <DateTime>[t1, t2]);
    });

    test('returns empty list when no rows match', () async {
      if (testDb == null) {
        markTestSkipped(
          'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
        );
        return;
      }

      final List<MarketDataSnapshot> rows =
          await testDb!.marketDataDb.barsForSymbol(
        symbol: 'NOPE',
        timeframe: '1Day',
        since: DateTime.utc(2026, 1, 1),
        until: DateTime.utc(2026, 1, 2),
      );

      expect(rows, isEmpty);
    });
  });

  test('latestSyncedAsOf returns newest as_of or null', () async {
    if (testDb == null) {
      markTestSkipped(
        'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
      );
      return;
    }

    final MarketDataDb db = testDb!.marketDataDb;
    final DateTime older = DateTime.utc(2026, 5, 20);
    final DateTime newer = DateTime.utc(2026, 5, 22);

    expect(await db.latestSyncedAsOf('SPY', '1Day'), isNull);

    await db.upsertSnapshot(
      symbol: 'SPY',
      metric: 'bar',
      timeframe: '1Day',
      asOf: older,
      price: 490,
    );
    await db.upsertSnapshot(
      symbol: 'SPY',
      metric: 'bar',
      timeframe: '1Day',
      asOf: newer,
      price: 500,
    );

    expect(await db.latestSyncedAsOf('SPY', '1Day'), newer);
  });

  test('symbolsWithBarForSlot matches canonical slot_start wire string', () async {
    if (testDb == null) {
      markTestSkipped(
        'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
      );
      return;
    }

    final MarketDataDb db = testDb!.marketDataDb;
    const String timeframe = '4Hour';
    final DateTime slotStart = DateTime.utc(2026, 5, 26, 8);
    final String slotWire = MarketHistoryFourHourSlot.slotStartWire(slotStart);

    await db.upsertSnapshot(
      symbol: 'AAPL',
      metric: 'bar',
      timeframe: timeframe,
      asOf: slotStart,
      price: 186,
      raw: <String, dynamic>{
        'slot_start': slotWire,
        't': slotWire,
      },
    );

    final Set<String> synced = await db.symbolsWithBarForSlot(
      symbols: <String>['AAPL', 'MSFT'],
      slotStart: slotStart,
      timeframe: timeframe,
    );

    expect(synced, <String>{'AAPL'});
  });

  test('symbolsWithBarForSlot falls back to as_of slot bucket for legacy rows', () async {
    if (testDb == null) {
      markTestSkipped(
        'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
      );
      return;
    }

    final MarketDataDb db = testDb!.marketDataDb;
    const String timeframe = '4Hour';
    final DateTime slotStart = DateTime.utc(2026, 5, 26, 8);
    final DateTime barAt = slotStart.add(const Duration(hours: 1));

    await db.upsertSnapshot(
      symbol: 'AAPL',
      metric: 'bar',
      timeframe: timeframe,
      asOf: barAt,
      price: 186,
      raw: <String, dynamic>{
        // Different wire format than Dart's toIso8601String() — must still count.
        'slot_start': '2026-05-26T08:00:00Z',
      },
    );

    final Set<String> synced = await db.symbolsWithBarForSlot(
      symbols: <String>['AAPL', 'MSFT'],
      slotStart: slotStart,
      timeframe: timeframe,
    );

    expect(synced, <String>{'AAPL'});
  });

  test('symbolsWithBarForSlot matches via slot_start bucket when wire differs', () async {
    if (testDb == null) {
      markTestSkipped(
        'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
      );
      return;
    }

    final MarketDataDb db = testDb!.marketDataDb;
    const String timeframe = '4Hour';
    final DateTime slotStart = DateTime.utc(2026, 5, 26, 8);

    await db.upsertSnapshot(
      symbol: 'AAPL',
      metric: 'bar',
      timeframe: timeframe,
      asOf: slotStart.add(const Duration(hours: 4)),
      price: 186,
      raw: <String, dynamic>{
        'slot_start': '2026-05-26T08:00:00.000Z',
      },
    );

    final Set<String> synced = await db.symbolsWithBarForSlot(
      symbols: <String>['AAPL'],
      slotStart: slotStart,
      timeframe: timeframe,
    );

    expect(synced, <String>{'AAPL'});
  });

  test('symbolsWithBarForSlot does not match the next slot boundary as prior slot',
      () async {
    if (testDb == null) {
      markTestSkipped(
        'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
      );
      return;
    }

    final MarketDataDb db = testDb!.marketDataDb;
    const String timeframe = '4Hour';
    final DateTime slotStart = DateTime.utc(2026, 5, 26, 8);

    await db.upsertSnapshot(
      symbol: 'AAPL',
      metric: 'bar',
      timeframe: timeframe,
      asOf: DateTime.utc(2026, 5, 26, 12),
      price: 186,
    );

    final Set<String> synced = await db.symbolsWithBarForSlot(
      symbols: <String>['AAPL'],
      slotStart: slotStart,
      timeframe: timeframe,
    );

    expect(synced, isEmpty);
  });

  test('symbolsWithBarForSlot counts no_data placeholder as synced', () async {
    if (testDb == null) {
      markTestSkipped(
        'Set DATABASE_URL or TEST_DATABASE_URL for integration tests',
      );
      return;
    }

    final MarketDataDb db = testDb!.marketDataDb;
    const String timeframe = '4Hour';
    final DateTime slotStart = DateTime.utc(2026, 5, 30, 20);

    await db.upsertNoDataBarPlaceholder(
      symbol: 'A',
      slotStart: slotStart,
      timeframe: timeframe,
      checkedAt: DateTime.utc(2026, 5, 31),
    );

    final Set<String> synced = await db.symbolsWithBarForSlot(
      symbols: <String>['A', 'B'],
      slotStart: slotStart,
      timeframe: timeframe,
    );

    expect(synced, <String>{'A'});
  });
}