import 'package:cyberhybridhub_server/trading/trading_config.dart';
import 'package:test/test.dart';

void main() {
  group('EffectiveTradingConfig.mergeJson', () {
    test('user rule patch merges into template by id', () {
      final Map<String, dynamic> base = <String, dynamic>{
        'version': 1,
        'enabled': true,
        'rules': <Map<String, dynamic>>[
          <String, dynamic>{
            'id': 'dip_confirm',
            'type': 'price_below_pct_of_ref',
            'symbol': 'SPY',
            'threshold_pct': -1.5,
            'question_template': 'template text',
          },
        ],
      };
      final Map<String, dynamic> override = <String, dynamic>{
        'rules': <Map<String, dynamic>>[
          <String, dynamic>{
            'id': 'dip_confirm',
            'threshold_pct': -2.0,
          },
        ],
      };

      final Map<String, dynamic> merged =
          EffectiveTradingConfig.mergeJson(base, override);
      final List<dynamic> rules = merged['rules'] as List<dynamic>;
      final Map<String, dynamic> rule =
          Map<String, dynamic>.from(rules.single as Map);

      expect(rule['threshold_pct'], -2.0);
      expect(rule['question_template'], 'template text');
    });

    test('user data_inputs patch replaces symbols for same id', () {
      final Map<String, dynamic> base = <String, dynamic>{
        'data_inputs': <Map<String, dynamic>>[
          <String, dynamic>{
            'id': 'primary_watchlist',
            'symbols': <String>['AAPL', 'MSFT', 'SPY'],
            'metrics': <String>['last_trade'],
          },
        ],
      };
      final Map<String, dynamic> override = <String, dynamic>{
        'data_inputs': <Map<String, dynamic>>[
          <String, dynamic>{
            'id': 'primary_watchlist',
            'symbols': <String>['SPY'],
          },
        ],
      };

      final Map<String, dynamic> merged =
          EffectiveTradingConfig.mergeJson(base, override);
      final List<dynamic> inputs = merged['data_inputs'] as List<dynamic>;
      final Map<String, dynamic> input =
          Map<String, dynamic>.from(inputs.single as Map);

      expect(input['symbols'], <String>['SPY']);
      expect(input['metrics'], <String>['last_trade']);
    });
  });
}