import 'package:chat_server/src/handlers/auth_handlers.dart';
import 'package:test/test.dart';

void main() {
  group('parseUserId', () {
    test('parses valid userId', () {
      final parsed = parseUserId('alice@example.com');
      expect(parsed, isNotNull);
      expect(parsed!.username, 'alice');
      expect(parsed.host, 'example.com');
    });

    test('returns null for invalid userId', () {
      expect(parseUserId('alice'), isNull);
      expect(parseUserId('alice@'), isNull);
      expect(parseUserId('@example.com'), isNull);
      expect(parseUserId('alice@example.com@x'), isNull);
    });
  });

  group('defaultSchemeForHost', () {
    test('returns http for localhost-style hosts', () {
      expect(defaultSchemeForHost('localhost:9870'), 'http');
      expect(defaultSchemeForHost('127.0.0.1:9870'), 'http');
      expect(defaultSchemeForHost('[::1]:9870'), 'http');
    });

    test('returns https for non-local hosts', () {
      expect(defaultSchemeForHost('chat.example.com'), 'https');
    });
  });

  group('normalizeHomeServer', () {
    test('normalizes host without scheme', () {
      expect(
        normalizeHomeServer('chat.example.com'),
        'https://chat.example.com',
      );
      expect(
        normalizeHomeServer('localhost:9870'),
        'http://localhost:9870',
      );
    });

    test('strips trailing slash/path/query/fragment', () {
      expect(
        normalizeHomeServer('https://example.com/a/b?x=1#y'),
        'https://example.com',
      );
      expect(
        normalizeHomeServer('https://example.com/'),
        'https://example.com',
      );
    });

    test('returns null for invalid input', () {
      expect(normalizeHomeServer(''), isNull);
      expect(normalizeHomeServer('://bad'), isNull);
    });
  });

  group('homeServerMatchesUserIdHost', () {
    test('matches host and explicit port', () {
      expect(
        homeServerMatchesUserIdHost(
            'https://chat.example.com:8443', 'chat.example.com:8443'),
        isTrue,
      );
      expect(
        homeServerMatchesUserIdHost(
            'https://chat.example.com:8443', 'chat.example.com'),
        isFalse,
      );
    });

    test('matches default ports when omitted', () {
      expect(
        homeServerMatchesUserIdHost(
            'https://chat.example.com', 'chat.example.com:443'),
        isTrue,
      );
      expect(
        homeServerMatchesUserIdHost(
            'http://chat.example.com', 'chat.example.com:80'),
        isTrue,
      );
    });
  });
}