// Writes the samples of the interoperability of the writer of capsules of
// datekeys-dart, stage 6b: the capsules of the recipes of
// test/capsule_interop_support.dart, which this library writes with
// SeededRandomSource or with the CSPRNG of the platform, their .dkk, and
// samples.json, the recipes with the name of each file, into a directory.
// tool/capsule_interop_go_verdicts.go then opens them with Go and writes
// test/vectors/capsule_interop.json; the tests write the seeded ones again
// and compare them with what Go read.
//
//   dart run tool/capsule_interop_dart_samples.dart <directory>
//
// ignore_for_file: avoid_print
import 'dart:convert';
import 'dart:io';

import '../test/capsule_interop_support.dart';

Future<void> main(List<String> args) async {
  if (args.length != 1) {
    stderr.writeln(
      'usage: dart run tool/capsule_interop_dart_samples.dart <dir>',
    );
    exit(2);
  }
  final dir = Directory(args.single)..createSync(recursive: true);
  final samples = interopSamples();
  for (var i = 0; i < samples.length; i++) {
    final s = samples[i];
    final w = await writeSample(s);
    File('${dir.path}/$i.dkc').writeAsBytesSync(w.dkc);
    s['file'] = '$i.dkc';
    final dkk = w.dkk;
    if (dkk != null) {
      File('${dir.path}/$i.dkk').writeAsBytesSync(dkk);
      s['dkk'] = '$i.dkk';
    }
    print('${s['name']}: ${w.dkc.length} bytes');
  }
  File('${dir.path}/samples.json').writeAsStringSync(
    const JsonEncoder.withIndent(' ').convert({'samples': samples}),
  );
  print('wrote ${samples.length} samples to ${dir.path}');
}