import 'package:dio/dio.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:frosty/apis/base_api_client.dart';
import 'package:frosty/apis/twitch_gql_api.dart';
import 'package:http_mock_adapter/http_mock_adapter.dart';

void main() {
  late Dio dio;
  late DioAdapter dioAdapter;
  late TwitchGqlApi api;

  setUp(() {
    dio = Dio(BaseOptions());
    dioAdapter = DioAdapter(dio: dio);
    api = TwitchGqlApi(dio);
  });

  Map<String, Object?> streamEdge({
    required String id,
    required String login,
    required int viewers,
    String? cursor,
  }) {
    return {
      'cursor': cursor ?? 'cursor-$id',
      'node': {
        'id': id,
        'title': '$login live',
        'viewersCount': viewers,
        'createdAt': '2026-01-01T00:00:00Z',
        'language': 'en',
        'game': {'id': '1', 'name': 'Game'},
        'broadcaster': {
          'id': id,
          'login': login,
          'displayName': login,
        },
      },
    };
  }

  group('getStreams', () {
    test('parses freeform tag page and cursor', () async {
      dioAdapter.onPost(
        'https://gql.twitch.tv/gql',
        (server) => server.reply(200, {
          'data': {
            'streams': {
              'edges': [
                streamEdge(id: '1', login: 'a', viewers: 10),
                streamEdge(id: '2', login: 'b', viewers: 5),
              ],
              'pageInfo': {'hasNextPage': true},
            },
          },
        }),
        data: Matchers.any,
      );

      final page = await api.getStreams(
        freeformTags: ['Deutsch'],
        sort: StreamViewerSort.viewersAsc,
      );

      expect(page.data.map((s) => s.userLogin), ['a', 'b']);
      expect(page.data.map((s) => s.viewerCount), [10, 5]);
      expect(page.pagination['cursor'], 'cursor-2');
    });

    test('throws IntegrityCheckException on integrity errors', () async {
      dioAdapter.onPost(
        'https://gql.twitch.tv/gql',
        (server) => server.reply(200, {
          'errors': [
            {'message': 'failed integrity check'},
          ],
          'data': {'streams': null},
        }),
        data: Matchers.any,
      );

      await expectLater(
        api.getStreams(
          freeformTags: ['Deutsch'],
          cursor: 'page-2',
          authToken: 'web',
          integrityToken: 'stale',
          deviceId: 'device',
        ),
        throwsA(isA<IntegrityCheckException>()),
      );
    });

    test('sends Client-Integrity and X-Device-Id when provided', () async {
      dioAdapter.onPost(
        'https://gql.twitch.tv/gql',
        (server) => server.reply(200, {
          'data': {
            'streams': {
              'edges': [streamEdge(id: '1', login: 'a', viewers: 1)],
              'pageInfo': {'hasNextPage': false},
            },
          },
        }),
        data: Matchers.any,
        headers: {
          'Client-ID': Matchers.any,
          'Content-Type': Matchers.any,
          'User-Agent': Matchers.any,
          'Authorization': 'OAuth web-token',
          'X-Device-Id': 'dev-123',
          'Client-Integrity': 'integrity-token',
        },
      );

      final page = await api.getStreams(
        freeformTags: ['English'],
        sort: StreamViewerSort.viewersDesc,
        cursor: 'after-1',
        authToken: 'web-token',
        integrityToken: 'integrity-token',
        deviceId: 'dev-123',
      );

      expect(page.data, hasLength(1));
      expect(page.pagination, isEmpty);
    });
  });
}