import 'dart:convert';

import 'package:swarm/swarm.dart';
import 'package:test/test.dart';

void main() {
  // Produces a genuinely-signed event so verifyNostrEvent has a real signature
  // to check (signed with the throwaway key below).
  const privKey =
      '0000000000000000000000000000000000000000000000000000000000000001';

  Future<Map<String, dynamic>> signedEvent() async {
    final signer = NostrSignerActor(privKey);
    final result =
        await signer.handle(
              const SignEvent(kind: 1985, content: '', tags: [
                ['L', 'app.xfay.moderation'],
                ['l', 'hide', 'app.xfay.moderation'],
                ['e', 'imageeventid'],
              ]),
            )
            as EventSigned;
    return jsonDecode(result.event) as Map<String, dynamic>;
  }

  test('accepts a genuinely signed event', () async {
    expect(verifyNostrEvent(await signedEvent()), isTrue);
  });

  test('rejects a tampered content', () async {
    final event = await signedEvent();
    event['content'] = 'tampered';
    expect(verifyNostrEvent(event), isFalse);
  });

  test('rejects a tampered id', () async {
    final event = await signedEvent();
    event['id'] = '${event['id']}'.replaceRange(0, 1, '0');
    expect(verifyNostrEvent(event), isFalse);
  });

  test('rejects a forged author (pubkey swapped)', () async {
    final event = await signedEvent();
    event['pubkey'] =
        '0000000000000000000000000000000000000000000000000000000000000002';
    expect(verifyNostrEvent(event), isFalse);
  });

  test('returns false for a malformed map instead of throwing', () {
    expect(verifyNostrEvent(const {}), isFalse);
    expect(verifyNostrEvent(const {'kind': 1}), isFalse);
  });
}