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

import 'package:crypto/crypto.dart';
import 'package:koi_swagger_parser/koi_swagger_parser.dart';
import 'package:path/path.dart' as p;
import 'package:test/test.dart';

void main() {
  test('e2e fixture generated file hashes match the reviewed golden', () async {
    final tempDirectory = await Directory.systemTemp.createTemp(
      'koi_swagger_parser_golden_',
    );
    addTearDown(() => tempDirectory.delete(recursive: true));
    final root = Directory.current.path;
    final fixture = p.join(root, 'test', 'fixtures', 'e2e_openapi.json');
    final output = p.join(tempDirectory.path, 'lib', 'src');
    final config = File(p.join(tempDirectory.path, 'koi_swagger_parser.yaml'));
    await config.writeAsString('''
input:
  swagger_urls:
    - url: $fixture
output:
  base_dir: $output
  api_dir: ${p.join(output, 'api')}
  models_dir: ${p.join(output, 'models')}
  manifest_path: ${p.join(tempDirectory.path, '.generated', 'manifest.json')}
generation:
  api:
    response_mode: http_response
    binary_response_mode: bytes
    cancel_token_support: true
    response_wrapper:
      mode: passthrough
  models:
    class_prefix: Koi
    enum_unknown_fallback: true
formatting:
  run_dart_format: false
''');

    final result = await const KoiSwaggerParser().generate(
      configPath: config.path,
    );
    final actual = <String, String>{};
    for (final path in result.generatedFiles) {
      final relative = p.relative(path, from: output).replaceAll('\\', '/');
      actual[relative] = sha256
          .convert(await File(path).readAsBytes())
          .toString();
    }
    final sortedActual = <String, String>{
      for (final key in (actual.keys.toList()..sort())) key: actual[key]!,
    };
    final goldenFile = File(
      p.join(root, 'test', 'goldens', 'e2e_generated_files.sha256.json'),
    );
    final expected = (jsonDecode(await goldenFile.readAsString()) as Map)
        .cast<String, dynamic>();

    expect(
      sortedActual,
      expected,
      reason:
          'If this output change is intentional, review generated Dart first '
          'and then update the golden hashes.',
    );
  });
}