502 lines
15 KiB
Dart
502 lines
15 KiB
Dart
import 'package:dio/dio.dart';
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import '../../core/http/dio_client.dart';
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import '../models/artist_profile.dart';
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import '../models/artist_work_query.dart';
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import '../models/post.dart';
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import '../models/post_comment.dart';
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import '../models/provider_health.dart';
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import '../models/top_period_filter.dart';
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import 'content_provider.dart';
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class KemonoProvider
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implements ContentProvider, ArtistProvider, CommentProvider {
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KemonoProvider({
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required this.id,
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required this.name,
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required this.baseUrl,
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required DioClient dioClient,
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Map<String, String> queryParameters = const {},
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}) : _dio = dioClient.dio,
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_creatorDio = Dio(
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BaseOptions(
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baseUrl: queryParameters['creator_api_base'] ??
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'https://kemono-api.mbaharip.com',
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connectTimeout: const Duration(seconds: 15),
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receiveTimeout: const Duration(seconds: 20),
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headers: const {
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'Accept': 'application/json',
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'User-Agent': 'Lunaris/2.0 Flutter local booru browser',
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},
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),
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);
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@override
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final String id;
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@override
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final String name;
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@override
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final String baseUrl;
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final Dio _dio;
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final Dio _creatorDio;
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bool get _isCoomer =>
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id.toLowerCase().contains('coomer') ||
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baseUrl.toLowerCase().contains('coomer');
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@override
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Future<List<Post>> searchPosts({
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required List<String> tags,
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required int page,
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int limit = 50,
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String? rating,
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TopPeriodFilter topPeriod = TopPeriodFilter.none,
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}) async {
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return const [];
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}
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@override
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Future<Post?> getPost(String id) async => null;
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@override
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Future<ProviderHealth> checkHealth() async {
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final startedAt = DateTime.now();
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try {
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await _creatorDio.get<dynamic>(
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_creatorPath(),
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queryParameters: {'page': 1, 'itemsPerPage': 1},
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);
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return ProviderHealth(
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providerId: id,
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status: ProviderStatus.online,
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pingMs: DateTime.now().difference(startedAt).inMilliseconds,
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lastCheckedAt: DateTime.now(),
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apiVersion: _isCoomer ? 'coomer-artists' : 'kemono-artists',
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);
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} catch (error) {
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return ProviderHealth(
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providerId: id,
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status: ProviderStatus.offline,
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pingMs: DateTime.now().difference(startedAt).inMilliseconds,
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lastCheckedAt: DateTime.now(),
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errorMessage: error.toString(),
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apiVersion: _isCoomer ? 'coomer-artists' : 'kemono-artists',
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);
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}
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}
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@override
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Future<List<ArtistProfile>> listArtists({
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String? service,
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String? query,
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int page = 1,
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int limit = 30,
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}) async {
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final searchText = query?.trim() ?? '';
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if (searchText.isNotEmpty) {
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try {
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final response = await _creatorDio.get<dynamic>(
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_creatorPath(),
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queryParameters: {
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'keyword': searchText,
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'page': page,
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'itemsPerPage': limit.clamp(1, 100),
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},
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);
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final artists = _artistsFromResponse(response.data)
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.where((artist) =>
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service == null || service.isEmpty || artist.service == service)
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.toList(growable: false);
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if (artists.isNotEmpty) return artists;
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} catch (_) {
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// Fall through to the indexed creator endpoints.
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}
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}
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try {
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final response = await _creatorDio.get<dynamic>(
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service == null || service.isEmpty
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? _creatorPath()
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: '${_creatorPath()}/$service',
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queryParameters: {
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'page': page,
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'itemsPerPage': limit.clamp(1, 100),
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if (query != null && query.trim().isNotEmpty) 'keyword': query.trim(),
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},
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);
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return _artistsFromResponse(response.data);
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} catch (_) {
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return _listArtistsFromPublicApi(
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service: service,
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query: query,
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page: page,
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limit: limit,
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);
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}
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}
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@override
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Future<List<ArtistProfile>> searchArtists(
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String query, {
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String? service,
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int page = 1,
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int limit = 30,
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}) {
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return listArtists(
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service: service, query: query, page: page, limit: limit);
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}
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@override
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Future<List<Post>> getArtistPosts({
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required ArtistWorkQuery query,
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int page = 0,
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int limit = 50,
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}) async {
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Object? lastError;
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final paths = [
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'/api/v1/${query.service}/user/${query.artistId}/posts',
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'/api/v1/${query.service}/user/${query.artistId}',
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];
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for (final apiBase in _apiBaseCandidates()) {
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for (final path in paths) {
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try {
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final response = await _getFromApiBase<dynamic>(
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apiBase,
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path,
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queryParameters: {'o': page * limit},
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);
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final posts = _postItems(response.data);
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final mapped = <Post>[];
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for (final post in posts.whereType<Map>()) {
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mapped.addAll(_postsFromArtistPost(
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Map<String, dynamic>.from(post),
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query: query,
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mediaBaseUrl: apiBase,
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));
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}
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if (mapped.isNotEmpty || posts.isEmpty) {
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return mapped.take(limit).toList(growable: false);
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}
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} catch (error) {
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lastError = error;
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}
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}
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}
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throw StateError(
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'$name artist works are unavailable right now. Try again later. '
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'${_shortError(lastError)}',
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);
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}
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@override
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Future<List<PostComment>> getArtistPostComments(
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String service,
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String artistId,
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String postId,
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) async {
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Object? lastError;
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final path = '/api/v1/$service/user/$artistId/post/$postId/comments';
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for (final apiBase in _apiBaseCandidates()) {
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try {
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final response = await _getFromApiBase<dynamic>(apiBase, path);
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return _commentsFromResponse(response.data, postId);
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} catch (error) {
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lastError = error;
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}
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}
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throw StateError(
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'$name comments are unavailable right now. ${_shortError(lastError)}',
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);
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}
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@override
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Future<List<PostComment>> getComments(String postId) async {
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final parts = postId.split(':');
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if (parts.length < 4) return const [];
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return getArtistPostComments(parts[0], parts[1], parts[2]);
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}
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String _creatorPath() => _isCoomer ? '/coomer' : '/kemono';
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List<ArtistProfile> _artistsFromResponse(dynamic data) {
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final items = data is Map ? data['data'] : data;
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if (items is! List) return const [];
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return items
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.whereType<Map>()
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.map((item) {
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final json = Map<String, dynamic>.from(item);
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final service = (json['service'] ?? '').toString();
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final artistId =
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(json['id'] ?? json['creator_id'] ?? json['user_id'] ?? '')
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.toString();
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final name = (json['name'] ??
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json['display_name'] ??
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json['username'] ??
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artistId)
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.toString();
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final rawAvatar = (json['avatar'] ??
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json['icon'] ??
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json['image'] ??
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json['avatar_url'] ??
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'')
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.toString();
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return ArtistProfile(
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id: artistId,
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providerId: id,
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service: service,
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name: name,
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displayName: name,
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avatarUrl: _absoluteUrl(rawAvatar) ?? _iconUrl(service, artistId),
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updatedAt: _dateFromAny(json['updated']),
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postCount: (json['post_count'] as num?)?.toInt(),
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url: '$baseUrl/$service/user/$artistId',
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);
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})
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.where((artist) => artist.id.isNotEmpty)
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.toList(growable: false);
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}
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Future<List<ArtistProfile>> _listArtistsFromPublicApi({
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String? service,
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String? query,
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required int page,
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required int limit,
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}) async {
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Object? lastError;
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dynamic data;
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for (final apiBase in _apiBaseCandidates()) {
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try {
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final response =
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await _getFromApiBase<dynamic>(apiBase, '/api/v1/creators.txt');
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data = response.data;
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break;
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} catch (error) {
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lastError = error;
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}
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}
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if (data == null) {
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throw StateError(
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'$name artist index is unavailable right now. ${_shortError(lastError)}',
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);
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}
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final queryText = (query ?? '').trim().toLowerCase();
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final offset = (page - 1).clamp(0, 999999) * limit;
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final items = _artistsFromResponse({'data': data})
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.where((artist) =>
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(service == null || service.isEmpty || artist.service == service) &&
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(queryText.isEmpty ||
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artist.displayName.toLowerCase().contains(queryText) ||
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artist.id.toLowerCase().contains(queryText)))
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.toList(growable: false);
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return items.skip(offset).take(limit).toList(growable: false);
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}
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List<dynamic> _postItems(dynamic data) {
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if (data is List) return data;
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if (data is Map) {
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final results = data['results'];
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if (results is List) return results;
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final posts = data['posts'];
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if (posts is List) return posts;
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if (posts is Map) return _postItems(posts);
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final dataItems = data['data'];
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if (dataItems is List) return dataItems;
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}
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return const [];
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}
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List<Post> _postsFromArtistPost(
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Map<String, dynamic> json, {
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required ArtistWorkQuery query,
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required String mediaBaseUrl,
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}) {
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final postId = (json['id'] ?? json['post_id'] ?? '').toString();
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final title = (json['title'] ?? '').toString();
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final published = _dateFromAny(json['published']) ??
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_dateFromAny(json['added']) ??
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_dateFromAny(json['edited']) ??
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DateTime.fromMillisecondsSinceEpoch(0);
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final files = <Map<String, dynamic>>[];
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final file = json['file'];
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if (file is Map && file.isNotEmpty) {
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files.add(Map<String, dynamic>.from(file));
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}
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final attachments = json['attachments'];
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if (attachments is List) {
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files.addAll(attachments.whereType<Map>().map(Map<String, dynamic>.from));
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}
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var index = 0;
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return files
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.map((file) {
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final url = _mediaUrl(file, mediaBaseUrl: mediaBaseUrl);
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final fileName =
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(file['name'] ?? Uri.tryParse(url)?.pathSegments.last ?? '')
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.toString();
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final type = _fileType('$fileName $url');
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final stableId =
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'${query.service}:${query.artistId}:$postId:${index++}';
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final tags = [
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query.service,
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query.artistName,
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if (title.trim().isNotEmpty) title.trim(),
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];
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return Post(
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id: stableId,
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providerId: id,
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providerName: name,
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previewUrl: url,
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sampleUrl: url,
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fileUrl: url,
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tags: tags,
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rating: 'unknown',
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width: 0,
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height: 0,
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source:
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'$baseUrl/${query.service}/user/${query.artistId}/post/$postId',
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createdAt: published,
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fileType: type,
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score: 0,
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tagGroups: {
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'artist': [query.artistName],
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'meta': [query.service],
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if (title.trim().isNotEmpty) 'copyright': [title.trim()],
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},
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);
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})
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.where((post) => post.fileUrl.isNotEmpty)
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.toList(growable: false);
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}
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List<PostComment> _commentsFromResponse(dynamic data, String postId) {
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final items = data is Map ? (data['comments'] ?? data['data']) : data;
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if (items is! List) return const [];
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return items
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.whereType<Map>()
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.map((item) {
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final json = Map<String, dynamic>.from(item);
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return PostComment(
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id: (json['id'] ?? json['comment_id'] ?? '').toString(),
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postId: postId,
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providerId: id,
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authorName: (json['author'] ??
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json['username'] ??
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json['user'] ??
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json['creator_name'] ??
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'user')
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.toString(),
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body: (json['content'] ?? json['body'] ?? json['comment'] ?? '')
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.toString(),
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createdAt: _dateFromAny(json['added']) ??
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_dateFromAny(json['created_at']) ??
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DateTime.fromMillisecondsSinceEpoch(0),
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);
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})
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.where((comment) => comment.body.trim().isNotEmpty)
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.toList(growable: false);
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}
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String _mediaUrl(
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Map<String, dynamic> file, {
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required String mediaBaseUrl,
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}) {
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final path = (file['path'] ?? file['url'] ?? '').toString();
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if (path.isEmpty) return '';
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final uri = Uri.tryParse(path);
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if (uri != null && uri.hasScheme) return path;
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if (path.startsWith('/data/')) {
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return '$mediaBaseUrl$path';
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}
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if (path.startsWith('/')) {
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return '$mediaBaseUrl/data$path';
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}
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return '$mediaBaseUrl/data/$path';
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}
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String? _iconUrl(String service, String artistId) {
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if (service.isEmpty || artistId.isEmpty) return null;
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final host = _isCoomer ? 'https://img.coomer.su' : 'https://img.kemono.su';
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return '$host/icons/$service/$artistId';
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}
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String? _absoluteUrl(String value) {
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final trimmed = value.trim();
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if (trimmed.isEmpty) return null;
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final uri = Uri.tryParse(trimmed);
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if (uri != null && uri.hasScheme) return trimmed;
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if (trimmed.startsWith('/')) return '$baseUrl$trimmed';
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return '$baseUrl/$trimmed';
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}
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List<String> _apiBaseCandidates() {
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final candidates = <String>[
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baseUrl,
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if (_isCoomer) ...[
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'https://coomer.st',
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'https://coomer.su',
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] else ...[
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'https://kemono.cr',
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'https://kemono.su',
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],
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];
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return candidates.map(_trimTrailingSlash).toSet().toList(growable: false);
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}
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Future<Response<T>> _getFromApiBase<T>(
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String apiBase,
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String path, {
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Map<String, Object?> queryParameters = const {},
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}) {
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if (_trimTrailingSlash(apiBase) == _trimTrailingSlash(baseUrl)) {
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return _dio.get<T>(path, queryParameters: queryParameters);
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}
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final dio = Dio(
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BaseOptions(
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baseUrl: apiBase,
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connectTimeout: const Duration(seconds: 15),
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receiveTimeout: const Duration(seconds: 25),
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headers: const {
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'Accept': 'application/json',
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'User-Agent': 'Lunaris/2.0 Flutter local booru browser',
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},
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),
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);
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return dio.get<T>(path, queryParameters: queryParameters);
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}
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String _trimTrailingSlash(String value) =>
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value.endsWith('/') ? value.substring(0, value.length - 1) : value;
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String _shortError(Object? error) {
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if (error == null) return '';
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final message = error.toString();
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if (message.length <= 160) return message;
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return '${message.substring(0, 160)}...';
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}
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String _fileType(String value) {
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final lower = value.toLowerCase().split('?').first;
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if (lower.endsWith('.webm') || lower.endsWith('.mp4')) return 'video';
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if (lower.endsWith('.gif')) return 'gif';
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if (lower.endsWith('.swf')) return 'swf';
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if (lower.endsWith('.png')) return 'png';
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if (lower.endsWith('.jpg') ||
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lower.endsWith('.jpeg') ||
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lower.endsWith('.webp')) {
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return 'photo';
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}
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return 'unknown';
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}
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DateTime? _dateFromAny(dynamic value) {
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if (value == null) return null;
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if (value is num) {
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final raw = value.toInt();
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if (raw > 9999999999) return DateTime.fromMillisecondsSinceEpoch(raw);
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return DateTime.fromMillisecondsSinceEpoch(raw * 1000);
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}
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return DateTime.tryParse(value.toString());
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}
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}
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