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

const _event = '{'
    '"id":"abc123",'
    '"pubkey":"pub",'
    '"created_at":1,'
    '"kind":1,'
    '"tags":[],'
    '"content":"hi",'
    '"sig":"sig"'
    '}';

void main() {
  group('NostrPublishActor', () {
    tearDown(() async {});

    test('sends correct EVENT format', () async {
      final fake = FakeRelayConnection();
      addTearDown(fake.dispose);

      final actor = NostrPublishActor(
        relayUrls: ['ws://relay1'],
        retryConfig: const RetryConfig(maxAttempts: 1),
        connectionFactory: (_) => fake,
      );

      await actor.handle(const PublishBatch([_event]));

      final eventMsgs = fake.sentMessages
          .where((m) => (jsonDecode(m) as List)[0] == 'EVENT')
          .toList();
      expect(eventMsgs, hasLength(1));
      final decoded = jsonDecode(eventMsgs[0]) as List;
      expect(decoded[0], equals('EVENT'));
      expect(decoded[1], isA<Map>());
      expect((decoded[1] as Map)['id'], equals('abc123'));
    });

    test('returns RelayConfirmed on success', () async {
      final fake = FakeRelayConnection();
      addTearDown(fake.dispose);

      final actor = NostrPublishActor(
        relayUrls: ['ws://relay1'],
        retryConfig: const RetryConfig(maxAttempts: 1),
        connectionFactory: (_) => fake,
      );

      final result = await actor.handle(const PublishBatch([_event]));

      expect(result, isA<BatchPublished>());
      final outcomes = (result as BatchPublished).outcomes;
      expect(outcomes['ws://relay1'], isA<RelayConfirmed>());
    });

    test('returns RelayRejected with no retry', () async {
      final fake = FakeRelayConnection()..autoRespond = false;
      addTearDown(fake.dispose);
      fake.queuedResponses.add(jsonEncode(['OK', 'abc123', false, 'spam']));

      final actor = NostrPublishActor(
        relayUrls: ['ws://relay1'],
        retryConfig: const RetryConfig(maxAttempts: 1),
        connectionFactory: (_) => fake,
      );

      final result = await actor.handle(const PublishBatch([_event]));

      expect(result, isA<BatchPublished>());
      final outcomes = (result as BatchPublished).outcomes;
      expect(outcomes['ws://relay1'], isA<RelayRejected>());
      expect((outcomes['ws://relay1'] as RelayRejected).reason, equals('spam'));

      final eventMsgs = fake.sentMessages
          .where((m) => (jsonDecode(m) as List)[0] == 'EVENT')
          .toList();
      expect(eventMsgs, hasLength(1));
    });

    test('returns RelayFailed on timeout and retries', () async {
      final fake = FakeRelayConnection()..autoRespond = false;
      addTearDown(fake.dispose);

      final actor = NostrPublishActor(
        relayUrls: ['ws://relay1'],
        retryConfig: const RetryConfig(
          maxAttempts: 2,
          baseDelay: Duration(milliseconds: 1),
          jitter: false,
        ),
        batchTimeout: const Duration(milliseconds: 50),
        connectionFactory: (_) => fake,
      );

      final result = await actor.handle(const PublishBatch([_event]));

      expect(result, isA<BatchPublished>());
      final outcomes = (result as BatchPublished).outcomes;
      expect(outcomes['ws://relay1'], isA<RelayFailed>());

      final eventMsgs = fake.sentMessages
          .where((m) => (jsonDecode(m) as List)[0] == 'EVENT')
          .toList();
      expect(eventMsgs, hasLength(2));
    });

    test('returns RelayFailed on connection error', () async {
      final fake = FakeRelayConnection()..throwOnConnect = true;
      addTearDown(fake.dispose);

      final actor = NostrPublishActor(
        relayUrls: ['ws://relay1'],
        retryConfig: const RetryConfig(maxAttempts: 1),
        connectionFactory: (_) => fake,
      );

      final result = await actor.handle(const PublishBatch([_event]));

      expect(result, isA<BatchPublished>());
      final outcomes = (result as BatchPublished).outcomes;
      expect(outcomes['ws://relay1'], isA<RelayFailed>());
    });

    test('fans out to multiple relays', () async {
      final fake1 = FakeRelayConnection();
      final fake2 = FakeRelayConnection();
      addTearDown(fake1.dispose);
      addTearDown(fake2.dispose);

      final fakes = {'ws://relay1': fake1, 'ws://relay2': fake2};

      final actor = NostrPublishActor(
        relayUrls: ['ws://relay1', 'ws://relay2'],
        retryConfig: const RetryConfig(maxAttempts: 1),
        connectionFactory: (url) => fakes[url]!,
      );

      final result = await actor.handle(const PublishBatch([_event]));

      expect(result, isA<BatchPublished>());
      final outcomes = (result as BatchPublished).outcomes;
      expect(outcomes.keys, containsAll(['ws://relay1', 'ws://relay2']));
      expect(outcomes['ws://relay1'], isA<RelayConfirmed>());
      expect(outcomes['ws://relay2'], isA<RelayConfirmed>());
    });
  });
}