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

import 'package:cyberhybridhub_server/trading/trading_dev_actions.dart';
import 'package:cyberhybridhub_server/trading/trading_pipeline.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();
  });

  TradingDevActions _actions({DateTime Function()? clock}) {
    final TradingPipeline pipeline = TradingPipeline(
      questionsDb: testDb!.questionsDb,
      questionService: testDb!.questionService(),
      marketDataDb: testDb!.marketDataDb,
      tradingConfigDb: testDb!.tradingConfigDb,
      tradingStateDb: testDb!.userTradingStateDb,
      clock: clock,
    );
    return TradingDevActions(
      questionsDb: testDb!.questionsDb,
      marketDataDb: testDb!.marketDataDb,
      tradingConfigDb: testDb!.tradingConfigDb,
      tradingPipeline: pipeline,
      clock: clock,
    );
  }

  test('seeds dipped snapshots and forces a dip_confirm question', () async {
    if (testDb == null) {
      markTestSkipped('Set DATABASE_URL or TEST_DATABASE_URL for integration tests');
      return;
    }
    const String uid = 'force-fire-uid';
    await testDb!.seedUser(uid);
    await testDb!.tradingConfigDb.upsertUserConfig(
      firebaseUid: uid,
      templateName: 'default_paper_watchlist',
      enabled: true,
    );

    final ForceFireResult result = await _actions().forceFireDip(uid);

    expect(result.skipReason, isNull);
    expect(result.evaluation, isNotNull);
    expect(result.evaluation!.rulesFired, <String>['dip_confirm']);
    expect(result.evaluation!.questionsCreated, 1);
    expect(result.snapshots, hasLength(2));
    expect(
      result.snapshots.map((SeededSnapshot s) => s.metric).toSet(),
      <String>{'prev_close', 'last_trade'},
    );

    // The synthetic last_trade should be at least the rule's threshold below
    // the reference price (default_paper_watchlist uses threshold_pct=-1.5).
    final SeededSnapshot trade =
        result.snapshots.firstWhere((SeededSnapshot s) => s.metric == 'last_trade');
    final SeededSnapshot ref =
        result.snapshots.firstWhere((SeededSnapshot s) => s.metric == 'prev_close');
    final num pct = ((trade.price - ref.price) / ref.price) * 100;
    expect(pct, lessThan(-1.5),
        reason: 'forced last_trade should be more than 1.5% below ref');

    final List<Map<String, dynamic>> open =
        await testDb!.questionsDb.listUnansweredQuestions(uid);
    expect(open, hasLength(1));
    expect(open.single['pipelineKey'], 'trading');
    expect(open.single['pipelineStep'], 'dip_confirm:await_confirm');
  });

  test('reuses existing fresh ref snapshot and only inserts last_trade', () async {
    if (testDb == null) {
      markTestSkipped('Set DATABASE_URL or TEST_DATABASE_URL for integration tests');
      return;
    }
    const String uid = 'force-fire-reuse-uid';
    await testDb!.seedUser(uid);
    await testDb!.tradingConfigDb.upsertUserConfig(
      firebaseUid: uid,
      templateName: 'default_paper_watchlist',
      enabled: true,
    );
    await testDb!.marketDataDb.insertSnapshot(
      symbol: 'SPY',
      metric: 'prev_close',
      price: 600,
      asOf: DateTime.utc(2026, 5, 25, 20),
    );

    final ForceFireResult result = await _actions().forceFireDip(uid);

    final SeededSnapshot ref =
        result.snapshots.firstWhere((SeededSnapshot s) => s.metric == 'prev_close');
    expect(ref.created, isFalse,
        reason: 'existing prev_close should be reused, not overwritten');
    expect(ref.price, 600);

    final SeededSnapshot trade =
        result.snapshots.firstWhere((SeededSnapshot s) => s.metric == 'last_trade');
    expect(trade.created, isTrue);
    // 2.0% below 600 = 588 (overshoot 0.5% beyond threshold of -1.5%).
    expect(trade.price, closeTo(588, 0.01));
  });

  test('short-circuits when user has no config', () async {
    if (testDb == null) {
      markTestSkipped('Set DATABASE_URL or TEST_DATABASE_URL for integration tests');
      return;
    }
    const String uid = 'force-fire-noconfig-uid';
    await testDb!.seedUser(uid);

    final ForceFireResult result = await _actions().forceFireDip(uid);
    expect(result.skipReason, 'no_config');
    expect(result.snapshots, isEmpty);
    expect(result.evaluation, isNull);
  });

  test('short-circuits when user config is disabled', () async {
    if (testDb == null) {
      markTestSkipped('Set DATABASE_URL or TEST_DATABASE_URL for integration tests');
      return;
    }
    const String uid = 'force-fire-disabled-uid';
    await testDb!.seedUser(uid);
    await testDb!.tradingConfigDb.upsertUserConfig(
      firebaseUid: uid,
      templateName: 'default_paper_watchlist',
      enabled: false,
    );

    final ForceFireResult result = await _actions().forceFireDip(uid);
    expect(result.skipReason, 'disabled');
  });

  test('clears prior unanswered trading question so a re-fire produces a fresh one',
      () async {
    if (testDb == null) {
      markTestSkipped('Set DATABASE_URL or TEST_DATABASE_URL for integration tests');
      return;
    }
    const String uid = 'force-fire-reuse-question-uid';
    await testDb!.seedUser(uid);
    await testDb!.tradingConfigDb.upsertUserConfig(
      firebaseUid: uid,
      templateName: 'default_paper_watchlist',
      enabled: true,
    );

    final TradingDevActions actions = _actions();
    final ForceFireResult first = await actions.forceFireDip(uid);
    expect(first.evaluation!.questionsCreated, 1);

    final List<Map<String, dynamic>> beforeSecond =
        await testDb!.questionsDb.listUnansweredQuestions(uid);
    expect(beforeSecond, hasLength(1));

    final ForceFireResult second = await actions.forceFireDip(uid);
    // The first question was auto-answered (skipped) by forceFireDip before
    // evaluating; the cooldown guard then prevents a second fire on the same
    // call. We expect either a fresh question or a clear cooldown skip — the
    // important invariant is that the queue never grows beyond one open
    // trading question.
    final List<Map<String, dynamic>> afterSecond =
        await testDb!.questionsDb.listUnansweredQuestions(uid);
    expect(afterSecond.length, lessThanOrEqualTo(1));
    expect(
      second.evaluation!.questionsCreated +
          second.evaluation!.rulesSkipped.length,
      greaterThan(0),
    );
  });
}