import 'dart:convert';
import 'dart:io';

import 'package:path/path.dart' as p;

/// Utility that reads JSON fixtures from `test/fixtures`.
///
/// Using files instead of inline maps makes it explicit which payloads
/// are exchanged with the backend.
class FixtureReader {
  const FixtureReader._();

  static String readAsString(String relativePath) {
    final file = File(_resolve(relativePath));
    return file.readAsStringSync();
  }

  static Map<String, dynamic> readAsMap(String relativePath) {
    return jsonDecode(readAsString(relativePath)) as Map<String, dynamic>;
  }

  static List<dynamic> readAsList(String relativePath) {
    return jsonDecode(readAsString(relativePath)) as List<dynamic>;
  }

  static String _resolve(String relativePath) {
    return p.normalize(p.join('test', 'fixtures', relativePath));
  }
}