// The differential of the CMS reader against the Go reference on the VM,
// with every case of test/vectors/cms_*.json and the fixtures of testdata/
// whose security area holds a signature of alg 2 or a seal of seal_type 2.
// And the part of those files that cms_vectors.g.dart holds for the tests
// compiled to JavaScript: for each section, the cases whose index is a
// multiple of the step that "every" gives.
@TestOn('vm')
library;

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

import 'package:test/test.dart';

import 'cms_support.dart';
import 'vectors/cms_vectors.g.dart';

const _embedded = {
  'ecdsa': cmsEcdsaJson,
  'rsa': cmsRsaJson,
  'certs': cmsCertsJson,
  'signatures': cmsSignaturesJson,
  'algorithms': cmsAlgorithmsJson,
  'tokens': cmsTokensJson,
  'mutations': cmsMutationsJson,
  'corpus': cmsCorpusJson,
};

void main() {
  final files = {
    for (final n in cmsFiles)
      n: jsonDecode(
        File('test/vectors/cms_$n.json').readAsStringSync(),
      ) as Json,
  };

  test('every file is of the draft v0.12 and of its generator', () {
    for (final f in files.values) {
      expect(f['spec'], '0.12 draft');
      expect(f['generator'], startsWith('tool/cms_go_vectors_test.go, go'));
      expect(f['source'], startsWith('datekeys-go c531e93'));
    }
  });

  group('cms_vectors.g.dart', () {
    for (final n in cmsFiles) {
      test('holds the part of cms_$n.json of its steps', () {
        final full = files[n]!;
        final part = jsonDecode(_embedded[n]!) as Json;
        final every = part['every']! as Json;
        expect(part.keys.toSet(), {...full.keys, 'every'});
        for (final MapEntry(:key, :value) in full.entries) {
          final step = every[key] as int?;
          if (step == null) {
            expect(part[key], value, reason: key);
            continue;
          }
          expect(part[key], [
            for (final (i, c) in (value! as List).indexed)
              if (step != 0 && i % step == 0) c,
          ], reason: key);
        }
      });
    }
  });

  group('ECDSA', () => ecdsaTests(files['ecdsa']!));
  group('RSA', () => rsaTests(files['rsa']!));
  group('certificates', () => certTests(files['certs']!));
  group(
    'signatures',
    () => signatureTests(files['signatures']!, const ['form']),
  );
  group(
    'algorithms',
    () => signatureTests(files['algorithms']!, const ['algorithms', 'keys']),
  );
  group('tokens', () => tokenTests(files['tokens']!));
  group('mutations', () => mutationTests(files['mutations']!));
  group(
    'corpus',
    () => corpusTests(
      files['corpus']!,
      fixture: (name) =>
          jsonDecode(File('testdata/fixtures/$name.json').readAsStringSync())
              as Json,
    ),
  );
}