import 'package:backend_dart/domain/errors/app_error.dart';
import 'package:backend_dart/domain/interface/error.dart';
import 'package:fpdart/fpdart.dart';

TaskEither<IError, Map<String, dynamic>> validateJsonKeys(
    Map<String, dynamic> json, List<String> requiredKeys) {
  return TaskEither.tryCatch(
    () async {
      final missingKeys =
          requiredKeys.where((key) => !json.containsKey(key)).toList();

      if (missingKeys.isNotEmpty) {
        throw Exception('Missing required keys: ${missingKeys.join(', ')}');
      }

      return json;
    },
    (error, _) => AppError.validationError(
      message: 'Failed to validate JSON keys: ${error.toString()}',
    ),
  );
}