feat: platform service selection and media type filters for artist posts (v2.0.4)

lib/backend/providers/content_provider.dart

@@ -47,6 +47,7 @@ abstract class TagMetadataProvider {
 abstract class ArtistProvider {
   Future<List<ArtistProfile>> listArtists({
     String? service,
+    List<String>? services,
     String? query,
     int page = 1,
     int limit = 30,
@@ -55,6 +56,7 @@ abstract class ArtistProvider {
   Future<List<ArtistProfile>> searchArtists(
     String query, {
     String? service,
+    List<String>? services,
     int page = 1,
     int limit = 30,
   });

lib/backend/providers/kemono_provider.dart

@@ -91,66 +91,56 @@ class KemonoProvider
   @override
   Future<List<ArtistProfile>> listArtists({
     String? service,
+    List<String>? services,
     String? query,
     int page = 1,
     int limit = 30,
   }) async {
-    final searchText = query?.trim() ?? '';
-    if (searchText.isNotEmpty) {
-      try {
-        final response = await _creatorDio.get<dynamic>(
-          _creatorPath(),
-          queryParameters: {
-            'keyword': searchText,
-            'page': page,
-            'itemsPerPage': limit.clamp(1, 100),
-          },
-        );
-        final artists = _rankArtists(
-          _artistsFromResponse(response.data)
-              .where((artist) =>
-                  service == null ||
-                  service.isEmpty ||
-                  artist.service == service)
-              .toList(growable: false),
-          searchText,
-        );
-        if (artists.isNotEmpty) return artists;
-      } catch (_) {
-        // Fall through to the indexed creator endpoints.
-      }
-    }
+    final effectiveService =
+        services != null && services.length == 1 ? services.first : service;
+    List<ArtistProfile> list;
     try {
       final response = await _creatorDio.get<dynamic>(
-        service == null || service.isEmpty
+        effectiveService == null || effectiveService.isEmpty
             ? _creatorPath()
-            : '${_creatorPath()}/$service',
+            : '${_creatorPath()}/$effectiveService',
         queryParameters: {
           'page': page,
           'itemsPerPage': limit.clamp(1, 100),
           if (query != null && query.trim().isNotEmpty) 'keyword': query.trim(),
         },
       );
-      return _rankArtists(_artistsFromResponse(response.data), query ?? '');
+      list = _rankArtists(_artistsFromResponse(response.data), query ?? '');
     } catch (_) {
-      return _listArtistsFromPublicApi(
-        service: service,
+      list = await _listArtistsFromPublicApi(
+        service: effectiveService,
         query: query,
         page: page,
         limit: limit,
       );
     }
+    if (services != null && services.isNotEmpty) {
+      final sSet = services.map((s) => s.toLowerCase()).toSet();
+      list = list.where((a) => sSet.contains(a.service.toLowerCase())).toList();
+    }
+    return list;
   }
 
   @override
   Future<List<ArtistProfile>> searchArtists(
     String query, {
     String? service,
+    List<String>? services,
     int page = 1,
     int limit = 30,
   }) {
     return listArtists(
-        service: service, query: query, page: page, limit: limit);
+      service: service,
+      services: services,
+      query: query,
+      page: page,
+      limit: limit,
+    );
   }
 
   @override

lib/backend/providers/pawchive_provider.dart

@@ -122,16 +122,23 @@ class PawchiveProvider
   @override
   Future<List<ArtistProfile>> listArtists({
     String? service,
+    List<String>? services,
     String? query,
     int page = 1,
     int limit = 30,
   }) async {
     final allArtists = await _ensureArtistsLoaded();
     final queryText = (query ?? '').trim().toLowerCase();
+    final activeServices = services != null && services.isNotEmpty
+        ? services.map((s) => s.trim().toLowerCase()).toSet()
+        : null;
     final filtered = allArtists.where((artist) {
-      final matchService = service == null ||
-          service.isEmpty ||
-          artist.service.toLowerCase() == service.toLowerCase();
+      final artistService = artist.service.toLowerCase();
+      final matchService = activeServices != null
+          ? activeServices.contains(artistService)
+          : service == null ||
+              service.isEmpty ||
+              artistService == service.toLowerCase();
       if (!matchService) return false;
       if (queryText.isEmpty) return true;
       return artist.displayName.toLowerCase().contains(queryText) ||
@@ -147,11 +154,13 @@ class PawchiveProvider
   Future<List<ArtistProfile>> searchArtists(
     String query, {
     String? service,
+    List<String>? services,
     int page = 1,
     int limit = 30,
   }) {
     return listArtists(
       service: service,
+      services: services,
       query: query,
       page: page,
       limit: limit,