feat(version): bump version to 0.9.7 in pyproject.toml

feat: index cached models by version id

locales/de.json

@@ -529,12 +529,15 @@
         "title": "Embedding-Modelle"
     },
     "sidebar": {
-        "modelRoot": "Modell-Stammverzeichnis",
+        "modelRoot": "Stammverzeichnis",
         "collapseAll": "Alle Ordner einklappen",
         "pinSidebar": "Sidebar anheften",
         "unpinSidebar": "Sidebar lösen",
         "switchToListView": "Zur Listenansicht wechseln",
         "switchToTreeView": "Zur Baumansicht wechseln",
+        "recursiveOn": "Unterordner durchsuchen",
+        "recursiveOff": "Nur aktuellen Ordner durchsuchen",
+        "recursiveUnavailable": "Rekursive Suche ist nur in der Baumansicht verfügbar",
         "collapseAllDisabled": "Im Listenmodus nicht verfügbar"
     },
     "statistics": {

locales/en.json

@@ -529,12 +529,15 @@
         "title": "Embedding Models"
     },
     "sidebar": {
-        "modelRoot": "Model Root",
+        "modelRoot": "Root",
         "collapseAll": "Collapse All Folders",
         "pinSidebar": "Pin Sidebar",
         "unpinSidebar": "Unpin Sidebar",
         "switchToListView": "Switch to List View",
         "switchToTreeView": "Switch to Tree View",
+        "recursiveOn": "Search subfolders",
+        "recursiveOff": "Search current folder only",
+        "recursiveUnavailable": "Recursive search is available in tree view only",
         "collapseAllDisabled": "Not available in list view"
     },
     "statistics": {

locales/es.json

@@ -529,12 +529,15 @@
         "title": "Modelos embedding"
     },
     "sidebar": {
-        "modelRoot": "Raíz del modelo",
+        "modelRoot": "Raíz",
         "collapseAll": "Colapsar todas las carpetas",
         "pinSidebar": "Fijar barra lateral",
         "unpinSidebar": "Desfijar barra lateral",
         "switchToListView": "Cambiar a vista de lista",
         "switchToTreeView": "Cambiar a vista de árbol",
+        "recursiveOn": "Buscar en subcarpetas",
+        "recursiveOff": "Buscar solo en la carpeta actual",
+        "recursiveUnavailable": "La búsqueda recursiva solo está disponible en la vista en árbol",
         "collapseAllDisabled": "No disponible en vista de lista"
     },
     "statistics": {

locales/fr.json

@@ -529,12 +529,15 @@
         "title": "Modèles Embedding"
     },
     "sidebar": {
-        "modelRoot": "Racine du modèle",
+        "modelRoot": "Racine",
         "collapseAll": "Réduire tous les dossiers",
         "pinSidebar": "Épingler la barre latérale",
         "unpinSidebar": "Désépingler la barre latérale",
         "switchToListView": "Passer en vue liste",
         "switchToTreeView": "Passer en vue arborescence",
+        "recursiveOn": "Rechercher dans les sous-dossiers",
+        "recursiveOff": "Rechercher uniquement dans le dossier actuel",
+        "recursiveUnavailable": "La recherche récursive n'est disponible qu'en vue arborescente",
         "collapseAllDisabled": "Non disponible en vue liste"
     },
     "statistics": {

locales/he.json

@@ -529,12 +529,15 @@
         "title": "מודלי Embedding"
     },
     "sidebar": {
-        "modelRoot": "שורש המודלים",
+        "modelRoot": "שורש",
         "collapseAll": "כווץ את כל התיקיות",
         "pinSidebar": "נעל סרגל צד",
         "unpinSidebar": "שחרר סרגל צד",
         "switchToListView": "עבור לתצוגת רשימה",
-        "switchToTreeView": "עבור לתצוגת עץ",
+        "switchToTreeView": "תצוגת עץ",
+        "recursiveOn": "חיפוש בתיקיות משנה",
+        "recursiveOff": "חיפוש רק בתיקייה הנוכחית",
+        "recursiveUnavailable": "חיפוש רקורסיבי זמין רק בתצוגת עץ",
         "collapseAllDisabled": "לא זמין בתצוגת רשימה"
     },
     "statistics": {
@@ -1264,4 +1267,4 @@
             "learnMore": "LM Civitai Extension Tutorial"
         }
     }
-}
+}

locales/ja.json

@@ -529,12 +529,15 @@
         "title": "Embeddingモデル"
     },
     "sidebar": {
-        "modelRoot": "モデルルート",
+        "modelRoot": "ルート",
         "collapseAll": "すべてのフォルダを折りたたむ",
         "pinSidebar": "サイドバーを固定",
         "unpinSidebar": "サイドバーの固定を解除",
         "switchToListView": "リストビューに切り替え",
-        "switchToTreeView": "ツリービューに切り替え",
+        "switchToTreeView": "ツリー表示に切り替え",
+        "recursiveOn": "サブフォルダーを検索",
+        "recursiveOff": "現在のフォルダーのみを検索",
+        "recursiveUnavailable": "再帰検索はツリービューでのみ利用できます",
         "collapseAllDisabled": "リストビューでは利用できません"
     },
     "statistics": {
@@ -1264,4 +1267,4 @@
             "learnMore": "LM Civitai Extension Tutorial"
         }
     }
-}
+}

locales/ko.json

@@ -529,12 +529,15 @@
         "title": "Embedding 모델"
     },
     "sidebar": {
-        "modelRoot": "모델 루트",
+        "modelRoot": "루트",
         "collapseAll": "모든 폴더 접기",
         "pinSidebar": "사이드바 고정",
         "unpinSidebar": "사이드바 고정 해제",
         "switchToListView": "목록 보기로 전환",
         "switchToTreeView": "트리 보기로 전환",
+        "recursiveOn": "하위 폴더 검색",
+        "recursiveOff": "현재 폴더만 검색",
+        "recursiveUnavailable": "재귀 검색은 트리 보기에서만 사용할 수 있습니다",
         "collapseAllDisabled": "목록 보기에서는 사용할 수 없습니다"
     },
     "statistics": {
@@ -1264,4 +1267,4 @@
             "learnMore": "LM Civitai Extension Tutorial"
         }
     }
-}
+}

locales/ru.json

@@ -529,12 +529,15 @@
         "title": "Модели Embedding"
     },
     "sidebar": {
-        "modelRoot": "Корень моделей",
+        "modelRoot": "Корень",
         "collapseAll": "Свернуть все папки",
         "pinSidebar": "Закрепить боковую панель",
         "unpinSidebar": "Открепить боковую панель",
         "switchToListView": "Переключить на вид списка",
         "switchToTreeView": "Переключить на древовидный вид",
+        "recursiveOn": "Искать во вложенных папках",
+        "recursiveOff": "Искать только в текущей папке",
+        "recursiveUnavailable": "Рекурсивный поиск доступен только в режиме дерева",
         "collapseAllDisabled": "Недоступно в виде списка"
     },
     "statistics": {
@@ -1264,4 +1267,4 @@
             "learnMore": "LM Civitai Extension Tutorial"
         }
     }
-}
+}

locales/zh-CN.json

@@ -535,12 +535,15 @@
         "title": "Embedding 模型"
     },
     "sidebar": {
-        "modelRoot": "模型根目录",
+        "modelRoot": "根目录",
         "collapseAll": "折叠所有文件夹",
         "pinSidebar": "固定侧边栏",
         "unpinSidebar": "取消固定侧边栏",
         "switchToListView": "切换到列表视图",
         "switchToTreeView": "切换到树状视图",
+        "recursiveOn": "搜索子文件夹",
+        "recursiveOff": "仅搜索当前文件夹",
+        "recursiveUnavailable": "仅在树形视图中可使用递归搜索",
         "collapseAllDisabled": "列表视图下不可用"
     },
     "statistics": {
@@ -1270,4 +1273,4 @@
             "learnMore": "LM Civitai Extension Tutorial"
         }
     }
-}
+}

locales/zh-TW.json

@@ -529,12 +529,15 @@
         "title": "Embedding 模型"
     },
     "sidebar": {
-        "modelRoot": "模型根目錄",
+        "modelRoot": "根目錄",
         "collapseAll": "全部摺疊資料夾",
         "pinSidebar": "固定側邊欄",
         "unpinSidebar": "取消固定側邊欄",
         "switchToListView": "切換至列表檢視",
-        "switchToTreeView": "切換至樹狀檢視",
+        "switchToTreeView": "切換到樹狀檢視",
+        "recursiveOn": "搜尋子資料夾",
+        "recursiveOff": "僅搜尋目前資料夾",
+        "recursiveUnavailable": "遞迴搜尋僅能在樹狀檢視中使用",
         "collapseAllDisabled": "列表檢視下不可用"
     },
     "statistics": {
@@ -1264,4 +1267,4 @@
             "learnMore": "LM Civitai Extension Tutorial"
         }
     }
-}
+}

py/config.py

@@ -74,8 +74,9 @@ class Config:
         """Persist ComfyUI-derived folder paths to the multi-library settings."""
         try:
             ensure_settings_file(logger)
-            from .services.settings_manager import settings as settings_service
+            from .services.settings_manager import get_settings_manager
 
+            settings_service = get_settings_manager()
             libraries = settings_service.get_libraries()
             comfy_library = libraries.get("comfyui", {})
             default_library = libraries.get("default", {})
@@ -442,8 +443,9 @@ class Config:
         """Return the current library registry and active library name."""
 
         try:
-            from .services.settings_manager import settings as settings_service
+            from .services.settings_manager import get_settings_manager
 
+            settings_service = get_settings_manager()
             libraries = settings_service.get_libraries()
             active_library = settings_service.get_active_library_name()
             return {

py/lora_manager.py

@@ -13,7 +13,7 @@ from .routes.misc_routes import MiscRoutes
 from .routes.preview_routes import PreviewRoutes
 from .routes.example_images_routes import ExampleImagesRoutes
 from .services.service_registry import ServiceRegistry
-from .services.settings_manager import settings
+from .services.settings_manager import get_settings_manager
 from .utils.example_images_migration import ExampleImagesMigration
 from .services.websocket_manager import ws_manager
 from .services.example_images_cleanup_service import ExampleImagesCleanupService
@@ -23,6 +23,25 @@ logger = logging.getLogger(__name__)
 # Check if we're in standalone mode
 STANDALONE_MODE = 'nodes' not in sys.modules
 
+
+class _SettingsProxy:
+    def __init__(self):
+        self._manager = None
+
+    def _resolve(self):
+        if self._manager is None:
+            self._manager = get_settings_manager()
+        return self._manager
+
+    def get(self, *args, **kwargs):
+        return self._resolve().get(*args, **kwargs)
+
+    def __getattr__(self, item):
+        return getattr(self._resolve(), item)
+
+
+settings = _SettingsProxy()
+
 class LoraManager:
     """Main entry point for LoRA Manager plugin"""
     

py/routes/base_model_routes.py

@@ -17,7 +17,7 @@ from ..services.model_lifecycle_service import ModelLifecycleService
 from ..services.preview_asset_service import PreviewAssetService
 from ..services.server_i18n import server_i18n as default_server_i18n
 from ..services.service_registry import ServiceRegistry
-from ..services.settings_manager import settings as default_settings
+from ..services.settings_manager import get_settings_manager
 from ..services.tag_update_service import TagUpdateService
 from ..services.websocket_manager import ws_manager as default_ws_manager
 from ..services.use_cases import (
@@ -56,14 +56,14 @@ class BaseModelRoutes(ABC):
         self,
         service=None,
         *,
-        settings_service=default_settings,
+        settings_service=None,
         ws_manager=default_ws_manager,
         server_i18n=default_server_i18n,
         metadata_provider_factory=get_default_metadata_provider,
     ) -> None:
         self.service = None
         self.model_type = ""
-        self._settings = settings_service
+        self._settings = settings_service or get_settings_manager()
         self._ws_manager = ws_manager
         self._server_i18n = server_i18n
         self._metadata_provider_factory = metadata_provider_factory
@@ -90,7 +90,7 @@ class BaseModelRoutes(ABC):
         self._metadata_sync_service = MetadataSyncService(
             metadata_manager=MetadataManager,
             preview_service=self._preview_service,
-            settings=settings_service,
+            settings=self._settings,
             default_metadata_provider_factory=metadata_provider_factory,
             metadata_provider_selector=get_metadata_provider,
         )

py/routes/base_recipe_routes.py

@@ -18,7 +18,7 @@ from ..services.recipes import (
 )
 from ..services.server_i18n import server_i18n
 from ..services.service_registry import ServiceRegistry
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 from ..utils.constants import CARD_PREVIEW_WIDTH
 from ..utils.exif_utils import ExifUtils
 from .handlers.recipe_handlers import (
@@ -48,7 +48,7 @@ class BaseRecipeRoutes:
         self.recipe_scanner = None
         self.lora_scanner = None
         self.civitai_client = None
-        self.settings = settings
+        self.settings = get_settings_manager()
         self.server_i18n = server_i18n
         self.template_env = jinja2.Environment(
             loader=jinja2.FileSystemLoader(config.templates_path),

py/routes/handlers/misc_handlers.py

@@ -24,10 +24,17 @@ from ...services.metadata_service import (
     update_metadata_providers,
 )
 from ...services.service_registry import ServiceRegistry
-from ...services.settings_manager import settings as default_settings
+from ...services.settings_manager import get_settings_manager
 from ...services.websocket_manager import ws_manager
 from ...services.downloader import get_downloader
-from ...utils.constants import DEFAULT_NODE_COLOR, NODE_TYPES, SUPPORTED_MEDIA_EXTENSIONS
+from ...utils.constants import (
+    CIVITAI_USER_MODEL_TYPES,
+    DEFAULT_NODE_COLOR,
+    NODE_TYPES,
+    SUPPORTED_MEDIA_EXTENSIONS,
+    VALID_LORA_TYPES,
+)
+from ...utils.civitai_utils import rewrite_preview_url
 from ...utils.example_images_paths import is_valid_example_images_root
 from ...utils.lora_metadata import extract_trained_words
 from ...utils.usage_stats import UsageStats
@@ -80,7 +87,7 @@ class NodeRegistry:
 
     def __init__(self) -> None:
         self._lock = asyncio.Lock()
-        self._nodes: Dict[int, dict] = {}
+        self._nodes: Dict[str, dict] = {}
         self._registry_updated = asyncio.Event()
 
     async def register_nodes(self, nodes: list[dict]) -> None:
@@ -88,11 +95,16 @@ class NodeRegistry:
             self._nodes.clear()
             for node in nodes:
                 node_id = node["node_id"]
+                graph_id = str(node["graph_id"])
+                unique_id = f"{graph_id}:{node_id}"
                 node_type = node.get("type", "")
                 type_id = NODE_TYPES.get(node_type, 0)
                 bgcolor = node.get("bgcolor") or DEFAULT_NODE_COLOR
-                self._nodes[node_id] = {
+                self._nodes[unique_id] = {
                     "id": node_id,
+                    "graph_id": graph_id,
+                    "graph_name": node.get("graph_name"),
+                    "unique_id": unique_id,
                     "bgcolor": bgcolor,
                     "title": node.get("title"),
                     "type": type_id,
@@ -157,11 +169,11 @@ class SettingsHandler:
     def __init__(
         self,
         *,
-        settings_service=default_settings,
+        settings_service=None,
         metadata_provider_updater: Callable[[], Awaitable[None]] = update_metadata_providers,
         downloader_factory: Callable[[], Awaitable[DownloaderProtocol]] = get_downloader,
     ) -> None:
-        self._settings = settings_service
+        self._settings = settings_service or get_settings_manager()
         self._metadata_provider_updater = metadata_provider_updater
         self._downloader_factory = downloader_factory
 
@@ -330,16 +342,65 @@ class LoraCodeHandler:
                     logger.error("Error broadcasting lora code: %s", exc)
                     results.append({"node_id": "broadcast", "success": False, "error": str(exc)})
             else:
-                for node_id in node_ids:
+                for entry in node_ids:
+                    node_identifier = entry
+                    graph_identifier = None
+                    if isinstance(entry, dict):
+                        node_identifier = entry.get("node_id")
+                        graph_identifier = entry.get("graph_id")
+
+                    if node_identifier is None:
+                        results.append(
+                            {
+                                "node_id": node_identifier,
+                                "graph_id": graph_identifier,
+                                "success": False,
+                                "error": "Missing node_id parameter",
+                            }
+                        )
+                        continue
+
+                    try:
+                        parsed_node_id = int(node_identifier)
+                    except (TypeError, ValueError):
+                        parsed_node_id = node_identifier
+
+                    payload = {
+                        "id": parsed_node_id,
+                        "lora_code": lora_code,
+                        "mode": mode,
+                    }
+
+                    if graph_identifier is not None:
+                        payload["graph_id"] = str(graph_identifier)
+
                     try:
                         self._prompt_server.instance.send_sync(
                             "lora_code_update",
-                            {"id": node_id, "lora_code": lora_code, "mode": mode},
+                            payload,
+                        )
+                        results.append(
+                            {
+                                "node_id": parsed_node_id,
+                                "graph_id": payload.get("graph_id"),
+                                "success": True,
+                            }
                         )
-                        results.append({"node_id": node_id, "success": True})
                     except Exception as exc:  # pragma: no cover - defensive logging
-                        logger.error("Error sending lora code to node %s: %s", node_id, exc)
-                        results.append({"node_id": node_id, "success": False, "error": str(exc)})
+                        logger.error(
+                            "Error sending lora code to node %s (graph %s): %s",
+                            parsed_node_id,
+                            graph_identifier,
+                            exc,
+                        )
+                        results.append(
+                            {
+                                "node_id": parsed_node_id,
+                                "graph_id": payload.get("graph_id"),
+                                "success": False,
+                                "error": str(exc),
+                            }
+                        )
 
             return web.json_response({"success": True, "results": results})
         except Exception as exc:  # pragma: no cover - defensive logging
@@ -557,17 +618,118 @@ class ModelLibraryHandler:
             logger.error("Failed to get model versions status: %s", exc, exc_info=True)
             return web.json_response({"success": False, "error": str(exc)}, status=500)
 
+    async def get_civitai_user_models(self, request: web.Request) -> web.Response:
+        try:
+            username = request.query.get("username")
+            if not username:
+                return web.json_response({"success": False, "error": "Missing required parameter: username"}, status=400)
+
+            metadata_provider = await self._metadata_provider_factory()
+            if not metadata_provider:
+                return web.json_response({"success": False, "error": "Metadata provider not available"}, status=503)
+
+            try:
+                models = await metadata_provider.get_user_models(username)
+            except NotImplementedError:
+                return web.json_response({"success": False, "error": "Metadata provider does not support user model queries"}, status=501)
+
+            if models is None:
+                return web.json_response({"success": False, "error": "Failed to fetch user models"}, status=502)
+
+            if not isinstance(models, list):
+                models = []
+
+            lora_scanner = await self._service_registry.get_lora_scanner()
+            checkpoint_scanner = await self._service_registry.get_checkpoint_scanner()
+            embedding_scanner = await self._service_registry.get_embedding_scanner()
+
+            normalized_allowed_types = {model_type.lower() for model_type in CIVITAI_USER_MODEL_TYPES}
+            lora_type_aliases = {model_type.lower() for model_type in VALID_LORA_TYPES}
+
+            type_scanner_map: Dict[str, object | None] = {
+                **{alias: lora_scanner for alias in lora_type_aliases},
+                "checkpoint": checkpoint_scanner,
+                "textualinversion": embedding_scanner,
+            }
+
+            versions: list[dict] = []
+            for model in models:
+                if not isinstance(model, dict):
+                    continue
+
+                model_type = str(model.get("type", "")).lower()
+                if model_type not in normalized_allowed_types:
+                    continue
+
+                scanner = type_scanner_map.get(model_type)
+                if scanner is None:
+                    return web.json_response({"success": False, "error": f'Scanner for type "{model_type}" is not available'}, status=503)
+
+                tags_value = model.get("tags")
+                tags = tags_value if isinstance(tags_value, list) else []
+                model_id = model.get("id")
+                try:
+                    model_id_int = int(model_id)
+                except (TypeError, ValueError):
+                    continue
+                model_name = model.get("name", "")
+
+                versions_data = model.get("modelVersions")
+                if not isinstance(versions_data, list):
+                    continue
+
+                for version in versions_data:
+                    if not isinstance(version, dict):
+                        continue
+
+                    version_id = version.get("id")
+                    try:
+                        version_id_int = int(version_id)
+                    except (TypeError, ValueError):
+                        continue
+
+                    images = version.get("images") or []
+                    thumbnail_url = None
+                    if images and isinstance(images, list):
+                        first_image = images[0]
+                        if isinstance(first_image, dict):
+                            raw_url = first_image.get("url")
+                            media_type = first_image.get("type")
+                            rewritten_url, _ = rewrite_preview_url(raw_url, media_type)
+                            thumbnail_url = rewritten_url
+
+                    in_library = await scanner.check_model_version_exists(version_id_int)
+
+                    versions.append(
+                        {
+                            "modelId": model_id_int,
+                            "versionId": version_id_int,
+                            "modelName": model_name,
+                            "versionName": version.get("name", ""),
+                            "type": model.get("type"),
+                            "tags": tags,
+                            "baseModel": version.get("baseModel"),
+                            "thumbnailUrl": thumbnail_url,
+                            "inLibrary": in_library,
+                        }
+                    )
+
+            return web.json_response({"success": True, "username": username, "versions": versions})
+        except Exception as exc:  # pragma: no cover - defensive logging
+            logger.error("Failed to get Civitai user models: %s", exc, exc_info=True)
+            return web.json_response({"success": False, "error": str(exc)}, status=500)
+
 
 class MetadataArchiveHandler:
     def __init__(
         self,
         *,
         metadata_archive_manager_factory: Callable[[], Awaitable[MetadataArchiveManagerProtocol]] = get_metadata_archive_manager,
-        settings_service=default_settings,
+        settings_service=None,
         metadata_provider_updater: Callable[[], Awaitable[None]] = update_metadata_providers,
     ) -> None:
         self._metadata_archive_manager_factory = metadata_archive_manager_factory
-        self._settings = settings_service
+        self._settings = settings_service or get_settings_manager()
         self._metadata_provider_updater = metadata_provider_updater
 
     async def download_metadata_archive(self, request: web.Request) -> web.Response:
@@ -679,10 +841,21 @@ class NodeRegistryHandler:
                 node_id = node.get("node_id")
                 if node_id is None:
                     return web.json_response({"success": False, "error": f"Node {index} missing node_id parameter"}, status=400)
+                graph_id = node.get("graph_id")
+                if graph_id is None:
+                    return web.json_response({"success": False, "error": f"Node {index} missing graph_id parameter"}, status=400)
+                graph_name = node.get("graph_name")
                 try:
                     node["node_id"] = int(node_id)
                 except (TypeError, ValueError):
                     return web.json_response({"success": False, "error": f"Node {index} node_id must be an integer"}, status=400)
+                node["graph_id"] = str(graph_id)
+                if graph_name is None:
+                    node["graph_name"] = None
+                elif isinstance(graph_name, str):
+                    node["graph_name"] = graph_name
+                else:
+                    node["graph_name"] = str(graph_name)
 
             await self._node_registry.register_nodes(nodes)
             return web.json_response({"success": True, "message": f"{len(nodes)} nodes registered successfully"})
@@ -779,6 +952,7 @@ class MiscHandlerSet:
             "register_nodes": self.node_registry.register_nodes,
             "get_registry": self.node_registry.get_registry,
             "check_model_exists": self.model_library.check_model_exists,
+            "get_civitai_user_models": self.model_library.get_civitai_user_models,
             "download_metadata_archive": self.metadata_archive.download_metadata_archive,
             "remove_metadata_archive": self.metadata_archive.remove_metadata_archive,
             "get_metadata_archive_status": self.metadata_archive.get_metadata_archive_status,

py/routes/handlers/model_handlers.py

@@ -30,6 +30,7 @@ from ...services.use_cases import (
 from ...services.websocket_manager import WebSocketManager
 from ...services.websocket_progress_callback import WebSocketProgressCallback
 from ...utils.file_utils import calculate_sha256
+from ...utils.metadata_manager import MetadataManager
 
 
 class ModelPageView:
@@ -244,6 +245,8 @@ class ModelManagementHandler:
             if not model_data.get("sha256"):
                 return web.json_response({"success": False, "error": "No SHA256 hash found"}, status=400)
 
+            await MetadataManager.hydrate_model_data(model_data)
+
             success, error = await self._metadata_sync.fetch_and_update_model(
                 sha256=model_data["sha256"],
                 file_path=file_path,
@@ -825,18 +828,30 @@ class ModelCivitaiHandler:
                     status=400,
                 )
 
+            cache = await self._service.scanner.get_cached_data()
+            version_index = cache.version_index
+
             for version in versions:
-                model_file = self._find_model_file(version.get("files", [])) if isinstance(version.get("files"), Iterable) else None
-                if model_file:
-                    hashes = model_file.get("hashes", {}) if isinstance(model_file, Mapping) else {}
-                    sha256 = hashes.get("SHA256") if isinstance(hashes, Mapping) else None
-                    if sha256:
-                        version["existsLocally"] = self._service.has_hash(sha256)
-                        if version["existsLocally"]:
-                            version["localPath"] = self._service.get_path_by_hash(sha256)
-                        version["modelSizeKB"] = model_file.get("sizeKB") if isinstance(model_file, Mapping) else None
+                version_id = None
+                version_id_raw = version.get("id")
+                if version_id_raw is not None:
+                    try:
+                        version_id = int(str(version_id_raw))
+                    except (TypeError, ValueError):
+                        version_id = None
+
+                cache_entry = version_index.get(version_id) if (version_id is not None and version_index) else None
+                version["existsLocally"] = cache_entry is not None
+                if cache_entry and isinstance(cache_entry, Mapping):
+                    local_path = cache_entry.get("file_path")
+                    if local_path:
+                        version["localPath"] = local_path
                 else:
-                    version["existsLocally"] = False
+                    version.pop("localPath", None)
+
+                model_file = self._find_model_file(version.get("files", [])) if isinstance(version.get("files"), Iterable) else None
+                if model_file and isinstance(model_file, Mapping):
+                    version["modelSizeKB"] = model_file.get("sizeKB")
             return web.json_response(versions)
         except Exception as exc:
             self._logger.error("Error fetching %s model versions: %s", self._service.model_type, exc)

py/routes/lora_routes.py

@@ -229,11 +229,27 @@ class LoraRoutes(BaseModelRoutes):
             trigger_words_text = ",, ".join(all_trigger_words) if all_trigger_words else ""
             
             # Send update to all connected trigger word toggle nodes
-            for node_id in node_ids:
-                PromptServer.instance.send_sync("trigger_word_update", {
-                    "id": node_id,
+            for entry in node_ids:
+                node_identifier = entry
+                graph_identifier = None
+                if isinstance(entry, dict):
+                    node_identifier = entry.get("node_id")
+                    graph_identifier = entry.get("graph_id")
+
+                try:
+                    parsed_node_id = int(node_identifier)
+                except (TypeError, ValueError):
+                    parsed_node_id = node_identifier
+
+                payload = {
+                    "id": parsed_node_id,
                     "message": trigger_words_text
-                })
+                }
+
+                if graph_identifier is not None:
+                    payload["graph_id"] = str(graph_identifier)
+
+                PromptServer.instance.send_sync("trigger_word_update", payload)
             
             return web.json_response({"success": True})
 

py/routes/misc_route_registrar.py

@@ -34,6 +34,7 @@ MISC_ROUTE_DEFINITIONS: tuple[RouteDefinition, ...] = (
     RouteDefinition("POST", "/api/lm/register-nodes", "register_nodes"),
     RouteDefinition("GET", "/api/lm/get-registry", "get_registry"),
     RouteDefinition("GET", "/api/lm/check-model-exists", "check_model_exists"),
+    RouteDefinition("GET", "/api/lm/civitai/user-models", "get_civitai_user_models"),
     RouteDefinition("POST", "/api/lm/download-metadata-archive", "download_metadata_archive"),
     RouteDefinition("POST", "/api/lm/remove-metadata-archive", "remove_metadata_archive"),
     RouteDefinition("GET", "/api/lm/metadata-archive-status", "get_metadata_archive_status"),

py/routes/misc_routes.py

@@ -14,7 +14,7 @@ from ..services.metadata_service import (
     get_metadata_provider,
     update_metadata_providers,
 )
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 from ..services.downloader import get_downloader
 from ..utils.usage_stats import UsageStats
 from .handlers.misc_handlers import (
@@ -47,7 +47,7 @@ class MiscRoutes:
     def __init__(
         self,
         *,
-        settings_service=settings,
+        settings_service=None,
         usage_stats_factory: Callable[[], UsageStats] = UsageStats,
         prompt_server: type[PromptServer] = PromptServer,
         service_registry_adapter=build_service_registry_adapter(),
@@ -60,7 +60,7 @@ class MiscRoutes:
         node_registry: NodeRegistry | None = None,
         standalone_mode_flag: bool = standalone_mode,
     ) -> None:
-        self._settings = settings_service
+        self._settings = settings_service or get_settings_manager()
         self._usage_stats_factory = usage_stats_factory
         self._prompt_server = prompt_server
         self._service_registry_adapter = service_registry_adapter

py/routes/stats_routes.py

@@ -8,13 +8,32 @@ from collections import defaultdict, Counter
 from typing import Dict, List, Any
 
 from ..config import config
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 from ..services.server_i18n import server_i18n
 from ..services.service_registry import ServiceRegistry
 from ..utils.usage_stats import UsageStats
 
 logger = logging.getLogger(__name__)
 
+
+class _SettingsProxy:
+    def __init__(self):
+        self._manager = None
+
+    def _resolve(self):
+        if self._manager is None:
+            self._manager = get_settings_manager()
+        return self._manager
+
+    def get(self, *args, **kwargs):
+        return self._resolve().get(*args, **kwargs)
+
+    def __getattr__(self, item):
+        return getattr(self._resolve(), item)
+
+
+settings = _SettingsProxy()
+
 class StatsRoutes:
     """Route handlers for Statistics page and API endpoints"""
     
@@ -66,7 +85,9 @@ class StatsRoutes:
             is_initializing = lora_initializing or checkpoint_initializing or embedding_initializing
 
             # 获取用户语言设置
-            user_language = settings.get('language', 'en')
+            settings_object = settings
+            user_language = settings_object.get('language', 'en')
+            settings_manager = settings_object if not isinstance(settings_object, _SettingsProxy) else settings_object._resolve()
             
             # 设置服务端i18n语言
             server_i18n.set_locale(user_language)
@@ -79,7 +100,7 @@ class StatsRoutes:
             template = self.template_env.get_template('statistics.html')
             rendered = template.render(
                 is_initializing=is_initializing,
-                settings=settings,
+                settings=settings_manager,
                 request=request,
                 t=server_i18n.get_translation,
             )

py/services/base_model_service.py

@@ -6,7 +6,7 @@ import os
 from ..utils.models import BaseModelMetadata
 from ..utils.metadata_manager import MetadataManager
 from .model_query import FilterCriteria, ModelCacheRepository, ModelFilterSet, SearchStrategy, SettingsProvider
-from .settings_manager import settings as default_settings
+from .settings_manager import get_settings_manager
 
 logger = logging.getLogger(__name__)
 
@@ -38,7 +38,7 @@ class BaseModelService(ABC):
         self.model_type = model_type
         self.scanner = scanner
         self.metadata_class = metadata_class
-        self.settings = settings_provider or default_settings
+        self.settings = settings_provider or get_settings_manager()
         self.cache_repository = cache_repository or ModelCacheRepository(scanner)
         self.filter_set = filter_set or ModelFilterSet(self.settings)
         self.search_strategy = search_strategy or SearchStrategy()

py/services/civitai_client.py

@@ -1,7 +1,7 @@
-import os
+import asyncio
 import copy
 import logging
-import asyncio
+import os
 from typing import Optional, Dict, Tuple, List
 from .model_metadata_provider import CivitaiModelMetadataProvider, ModelMetadataProviderManager
 from .downloader import get_downloader
@@ -157,141 +157,160 @@ class CivitaiClient:
             return None
             
     async def get_model_version(self, model_id: int = None, version_id: int = None) -> Optional[Dict]:
-        """Get specific model version with additional metadata
-        
-        Args:
-            model_id: The Civitai model ID (optional if version_id is provided)
-            version_id: Optional specific version ID to retrieve
-            
-        Returns:
-            Optional[Dict]: The model version data with additional fields or None if not found
-        """
+        """Get specific model version with additional metadata."""
         try:
             downloader = await get_downloader()
-            
-            # Case 1: Only version_id is provided
+
             if model_id is None and version_id is not None:
-                # First get the version info to extract model_id
-                success, version = await downloader.make_request(
-                    'GET',
-                    f"{self.base_url}/model-versions/{version_id}",
-                    use_auth=True
-                )
-                if not success:
-                    return None
-                
-                model_id = version.get('modelId')
-                if not model_id:
-                    logger.error(f"No modelId found in version {version_id}")
-                    return None
-            
-                # Now get the model data for additional metadata
-                success, model_data = await downloader.make_request(
-                    'GET',
-                    f"{self.base_url}/models/{model_id}",
-                    use_auth=True
-                )
-                if success:
-                    # Enrich version with model data
-                    version['model']['description'] = model_data.get("description")
-                    version['model']['tags'] = model_data.get("tags", [])
-                    version['creator'] = model_data.get("creator")
+                return await self._get_version_by_id_only(downloader, version_id)
 
-                self._remove_comfy_metadata(version)
-                return version
-            
-            # Case 2: model_id is provided (with or without version_id)
-            elif model_id is not None:
-                # Step 1: Get model data to find version_id if not provided and get additional metadata
-                success, data = await downloader.make_request(
-                    'GET',
-                    f"{self.base_url}/models/{model_id}",
-                    use_auth=True
-                )
-                if not success:
-                    return None
+            if model_id is not None:
+                return await self._get_version_with_model_id(downloader, model_id, version_id)
 
-                model_versions = data.get('modelVersions', [])
-                if not model_versions:
-                    logger.warning(f"No model versions found for model {model_id}")
-                    return None
+            logger.error("Either model_id or version_id must be provided")
+            return None
 
-                # Step 2: Determine the target version entry to use
-                target_version = None
-                if version_id is not None:
-                    target_version = next(
-                        (item for item in model_versions if item.get('id') == version_id),
-                        None
-                    )
-                    if target_version is None:
-                        logger.warning(
-                            f"Version {version_id} not found for model {model_id}, defaulting to first version"
-                        )
-                if target_version is None:
-                    target_version = model_versions[0]
-
-                target_version_id = target_version.get('id')
-
-                # Step 3: Get detailed version info using the SHA256 hash
-                model_hash = None
-                for file_info in target_version.get('files', []):
-                    if file_info.get('type') == 'Model' and file_info.get('primary'):
-                        model_hash = file_info.get('hashes', {}).get('SHA256')
-                        if model_hash:
-                            break
-
-                version = None
-                if model_hash:
-                    success, version = await downloader.make_request(
-                        'GET',
-                        f"{self.base_url}/model-versions/by-hash/{model_hash}",
-                        use_auth=True
-                    )
-                    if not success:
-                        logger.warning(
-                            f"Failed to fetch version by hash for model {model_id} version {target_version_id}: {version}"
-                        )
-                        version = None
-                else:
-                    logger.warning(
-                        f"No primary model hash found for model {model_id} version {target_version_id}"
-                    )
-
-                if version is None:
-                    version = copy.deepcopy(target_version)
-                    version.pop('index', None)
-                    version['modelId'] = model_id
-                    version['model'] = {
-                        'name': data.get('name'),
-                        'type': data.get('type'),
-                        'nsfw': data.get('nsfw'),
-                        'poi': data.get('poi')
-                    }
-
-                # Step 4: Enrich version_info with model data
-                # Add description and tags from model data
-                model_info = version.get('model')
-                if not isinstance(model_info, dict):
-                    model_info = {}
-                    version['model'] = model_info
-                model_info['description'] = data.get("description")
-                model_info['tags'] = data.get("tags", [])
-
-                # Add creator from model data
-                version['creator'] = data.get("creator")
-
-                self._remove_comfy_metadata(version)
-                return version
-            
-            # Case 3: Neither model_id nor version_id provided
-            else:
-                logger.error("Either model_id or version_id must be provided")
-                return None
-                
         except Exception as e:
             logger.error(f"Error fetching model version: {e}")
             return None
 
+    async def _get_version_by_id_only(self, downloader, version_id: int) -> Optional[Dict]:
+        version = await self._fetch_version_by_id(downloader, version_id)
+        if version is None:
+            return None
+
+        model_id = version.get('modelId')
+        if not model_id:
+            logger.error(f"No modelId found in version {version_id}")
+            return None
+
+        model_data = await self._fetch_model_data(downloader, model_id)
+        if model_data:
+            self._enrich_version_with_model_data(version, model_data)
+
+        self._remove_comfy_metadata(version)
+        return version
+
+    async def _get_version_with_model_id(self, downloader, model_id: int, version_id: Optional[int]) -> Optional[Dict]:
+        model_data = await self._fetch_model_data(downloader, model_id)
+        if not model_data:
+            return None
+
+        target_version = self._select_target_version(model_data, model_id, version_id)
+        if target_version is None:
+            return None
+
+        target_version_id = target_version.get('id')
+        version = await self._fetch_version_by_id(downloader, target_version_id) if target_version_id else None
+
+        if version is None:
+            model_hash = self._extract_primary_model_hash(target_version)
+            if model_hash:
+                version = await self._fetch_version_by_hash(downloader, model_hash)
+            else:
+                logger.warning(
+                    f"No primary model hash found for model {model_id} version {target_version_id}"
+                )
+
+        if version is None:
+            version = self._build_version_from_model_data(target_version, model_id, model_data)
+
+        self._enrich_version_with_model_data(version, model_data)
+        self._remove_comfy_metadata(version)
+        return version
+
+    async def _fetch_model_data(self, downloader, model_id: int) -> Optional[Dict]:
+        success, data = await downloader.make_request(
+            'GET',
+            f"{self.base_url}/models/{model_id}",
+            use_auth=True
+        )
+        if success:
+            return data
+        logger.warning(f"Failed to fetch model data for model {model_id}")
+        return None
+
+    async def _fetch_version_by_id(self, downloader, version_id: Optional[int]) -> Optional[Dict]:
+        if version_id is None:
+            return None
+
+        success, version = await downloader.make_request(
+            'GET',
+            f"{self.base_url}/model-versions/{version_id}",
+            use_auth=True
+        )
+        if success:
+            return version
+
+        logger.warning(f"Failed to fetch version by id {version_id}")
+        return None
+
+    async def _fetch_version_by_hash(self, downloader, model_hash: Optional[str]) -> Optional[Dict]:
+        if not model_hash:
+            return None
+
+        success, version = await downloader.make_request(
+            'GET',
+            f"{self.base_url}/model-versions/by-hash/{model_hash}",
+            use_auth=True
+        )
+        if success:
+            return version
+
+        logger.warning(f"Failed to fetch version by hash {model_hash}")
+        return None
+
+    def _select_target_version(self, model_data: Dict, model_id: int, version_id: Optional[int]) -> Optional[Dict]:
+        model_versions = model_data.get('modelVersions', [])
+        if not model_versions:
+            logger.warning(f"No model versions found for model {model_id}")
+            return None
+
+        if version_id is not None:
+            target_version = next(
+                (item for item in model_versions if item.get('id') == version_id),
+                None
+            )
+            if target_version is None:
+                logger.warning(
+                    f"Version {version_id} not found for model {model_id}, defaulting to first version"
+                )
+                return model_versions[0]
+            return target_version
+
+        return model_versions[0]
+
+    def _extract_primary_model_hash(self, version_entry: Dict) -> Optional[str]:
+        for file_info in version_entry.get('files', []):
+            if file_info.get('type') == 'Model' and file_info.get('primary'):
+                hashes = file_info.get('hashes', {})
+                model_hash = hashes.get('SHA256')
+                if model_hash:
+                    return model_hash
+        return None
+
+    def _build_version_from_model_data(self, version_entry: Dict, model_id: int, model_data: Dict) -> Dict:
+        version = copy.deepcopy(version_entry)
+        version.pop('index', None)
+        version['modelId'] = model_id
+        version['model'] = {
+            'name': model_data.get('name'),
+            'type': model_data.get('type'),
+            'nsfw': model_data.get('nsfw'),
+            'poi': model_data.get('poi')
+        }
+        return version
+
+    def _enrich_version_with_model_data(self, version: Dict, model_data: Dict) -> None:
+        model_info = version.get('model')
+        if not isinstance(model_info, dict):
+            model_info = {}
+            version['model'] = model_info
+
+        model_info['description'] = model_data.get("description")
+        model_info['tags'] = model_data.get("tags", [])
+        version['creator'] = model_data.get("creator")
+
     async def get_model_version_info(self, version_id: str) -> Tuple[Optional[Dict], Optional[str]]:
         """Fetch model version metadata from Civitai
         
@@ -335,7 +354,7 @@ class CivitaiClient:
 
     async def get_image_info(self, image_id: str) -> Optional[Dict]:
         """Fetch image information from Civitai API
-        
+
         Args:
             image_id: The Civitai image ID
             
@@ -366,3 +385,37 @@ class CivitaiClient:
             error_msg = f"Error fetching image info: {e}"
             logger.error(error_msg)
             return None
+
+    async def get_user_models(self, username: str) -> Optional[List[Dict]]:
+        """Fetch all models for a specific Civitai user."""
+        if not username:
+            return None
+
+        try:
+            downloader = await get_downloader()
+            url = f"{self.base_url}/models?username={username}"
+            success, result = await downloader.make_request(
+                'GET',
+                url,
+                use_auth=True
+            )
+
+            if not success:
+                logger.error("Failed to fetch models for %s: %s", username, result)
+                return None
+
+            items = result.get("items") if isinstance(result, dict) else None
+            if not isinstance(items, list):
+                return []
+
+            for model in items:
+                versions = model.get("modelVersions")
+                if not isinstance(versions, list):
+                    continue
+                for version in versions:
+                    self._remove_comfy_metadata(version)
+
+            return items
+        except Exception as exc:  # pragma: no cover - defensive logging
+            logger.error("Error fetching models for %s: %s", username, exc)
+            return None

py/services/download_manager.py

@@ -4,12 +4,14 @@ import asyncio
 from collections import OrderedDict
 import uuid
 from typing import Dict, List
+from urllib.parse import urlparse
 from ..utils.models import LoraMetadata, CheckpointMetadata, EmbeddingMetadata
 from ..utils.constants import CARD_PREVIEW_WIDTH, VALID_LORA_TYPES, CIVITAI_MODEL_TAGS
+from ..utils.civitai_utils import rewrite_preview_url
 from ..utils.exif_utils import ExifUtils
 from ..utils.metadata_manager import MetadataManager
 from .service_registry import ServiceRegistry
-from .settings_manager import settings
+from .settings_manager import get_settings_manager
 from .metadata_service import get_default_metadata_provider
 from .downloader import get_downloader
 
@@ -241,23 +243,24 @@ class DownloadManager:
             
             # Handle use_default_paths
             if use_default_paths:
+                settings_manager = get_settings_manager()
                 # Set save_dir based on model type
                 if model_type == 'checkpoint':
-                    default_path = settings.get('default_checkpoint_root')
+                    default_path = settings_manager.get('default_checkpoint_root')
                     if not default_path:
                         return {'success': False, 'error': 'Default checkpoint root path not set in settings'}
                     save_dir = default_path
                 elif model_type == 'lora':
-                    default_path = settings.get('default_lora_root')
+                    default_path = settings_manager.get('default_lora_root')
                     if not default_path:
                         return {'success': False, 'error': 'Default lora root path not set in settings'}
                     save_dir = default_path
                 elif model_type == 'embedding':
-                    default_path = settings.get('default_embedding_root')
+                    default_path = settings_manager.get('default_embedding_root')
                     if not default_path:
                         return {'success': False, 'error': 'Default embedding root path not set in settings'}
                     save_dir = default_path
-                    
+
                 # Calculate relative path using template
                 relative_path = self._calculate_relative_path(version_info, model_type)
 
@@ -360,7 +363,8 @@ class DownloadManager:
             Relative path string
         """
         # Get path template from settings for specific model type
-        path_template = settings.get_download_path_template(model_type)
+        settings_manager = get_settings_manager()
+        path_template = settings_manager.get_download_path_template(model_type)
         
         # If template is empty, return empty path (flat structure)
         if not path_template:
@@ -377,7 +381,7 @@ class DownloadManager:
             author = 'Anonymous'
         
         # Apply mapping if available
-        base_model_mappings = settings.get('base_model_path_mappings', {})
+        base_model_mappings = settings_manager.get('base_model_path_mappings', {})
         mapped_base_model = base_model_mappings.get(base_model, base_model)
         
         # Get model tags
@@ -448,70 +452,103 @@ class DownloadManager:
             # Download preview image if available
             images = version_info.get('images', [])
             if images:
-                # Report preview download progress
                 if progress_callback:
                     await progress_callback(1)  # 1% progress for starting preview download
 
-                # Check if it's a video or an image
-                is_video = images[0].get('type') == 'video'
-                
-                if (is_video):
-                    # For videos, use .mp4 extension
-                    preview_ext = '.mp4'
-                    preview_path = os.path.splitext(save_path)[0] + preview_ext
-                    
-                    # Download video directly using downloader
-                    downloader = await get_downloader()
-                    success, result = await downloader.download_file(
-                        images[0]['url'], 
-                        preview_path, 
-                        use_auth=False  # Preview images typically don't need auth
-                    )
-                    if success:
-                        metadata.preview_url = preview_path.replace(os.sep, '/')
-                        metadata.preview_nsfw_level = images[0].get('nsfwLevel', 0)
-                else:
-                    # For images, use WebP format for better performance
-                    with tempfile.NamedTemporaryFile(suffix='.png', delete=False) as temp_file:
-                        temp_path = temp_file.name
-                    
-                    # Download the original image to temp path using downloader
-                    downloader = await get_downloader()
-                    success, content, headers = await downloader.download_to_memory(
-                        images[0]['url'], 
-                        use_auth=False
-                    )
-                    if success:
-                        # Save to temp file
-                        with open(temp_path, 'wb') as f:
-                            f.write(content)
-                        # Optimize and convert to WebP
-                        preview_path = os.path.splitext(save_path)[0] + '.webp'
-                        
-                        # Use ExifUtils to optimize and convert the image
-                        optimized_data, _ = ExifUtils.optimize_image(
-                            image_data=temp_path,
-                            target_width=CARD_PREVIEW_WIDTH,
-                            format='webp',
-                            quality=85,
-                            preserve_metadata=False
-                        )
-                        
-                        # Save the optimized image
-                        with open(preview_path, 'wb') as f:
-                            f.write(optimized_data)
-                            
-                        # Update metadata
-                        metadata.preview_url = preview_path.replace(os.sep, '/')
-                        metadata.preview_nsfw_level = images[0].get('nsfwLevel', 0)
-                        
-                        # Remove temporary file
-                        try:
-                            os.unlink(temp_path)
-                        except Exception as e:
-                            logger.warning(f"Failed to delete temp file: {e}")
+                first_image = images[0] if isinstance(images[0], dict) else None
+                preview_url = first_image.get('url') if first_image else None
+                media_type = (first_image.get('type') or '').lower() if first_image else ''
+                nsfw_level = first_image.get('nsfwLevel', 0) if first_image else 0
+
+                def _extension_from_url(url: str, fallback: str) -> str:
+                    try:
+                        parsed = urlparse(url)
+                    except ValueError:
+                        return fallback
+                    ext = os.path.splitext(parsed.path)[1]
+                    return ext or fallback
+
+                preview_downloaded = False
+                preview_path = None
+
+                if preview_url:
+                    downloader = await get_downloader()
+
+                    if media_type == 'video':
+                        preview_ext = _extension_from_url(preview_url, '.mp4')
+                        preview_path = os.path.splitext(save_path)[0] + preview_ext
+                        rewritten_url, rewritten = rewrite_preview_url(preview_url, media_type='video')
+                        attempt_urls: List[str] = []
+                        if rewritten:
+                            attempt_urls.append(rewritten_url)
+                        attempt_urls.append(preview_url)
+
+                        seen_attempts = set()
+                        for attempt in attempt_urls:
+                            if not attempt or attempt in seen_attempts:
+                                continue
+                            seen_attempts.add(attempt)
+                            success, _ = await downloader.download_file(
+                                attempt,
+                                preview_path,
+                                use_auth=False
+                            )
+                            if success:
+                                preview_downloaded = True
+                                break
+                    else:
+                        rewritten_url, rewritten = rewrite_preview_url(preview_url, media_type='image')
+                        if rewritten:
+                            preview_ext = _extension_from_url(preview_url, '.png')
+                            preview_path = os.path.splitext(save_path)[0] + preview_ext
+                            success, _ = await downloader.download_file(
+                                rewritten_url,
+                                preview_path,
+                                use_auth=False
+                            )
+                            if success:
+                                preview_downloaded = True
+
+                        if not preview_downloaded:
+                            temp_path: str | None = None
+                            try:
+                                with tempfile.NamedTemporaryFile(suffix='.png', delete=False) as temp_file:
+                                    temp_path = temp_file.name
+
+                                success, content, _ = await downloader.download_to_memory(
+                                    preview_url,
+                                    use_auth=False
+                                )
+                                if success:
+                                    with open(temp_path, 'wb') as temp_file_handle:
+                                        temp_file_handle.write(content)
+                                    preview_path = os.path.splitext(save_path)[0] + '.webp'
+
+                                    optimized_data, _ = ExifUtils.optimize_image(
+                                        image_data=temp_path,
+                                        target_width=CARD_PREVIEW_WIDTH,
+                                        format='webp',
+                                        quality=85,
+                                        preserve_metadata=False
+                                    )
+
+                                    with open(preview_path, 'wb') as preview_file:
+                                        preview_file.write(optimized_data)
+
+                                    preview_downloaded = True
+                            finally:
+                                if temp_path and os.path.exists(temp_path):
+                                    try:
+                                        os.unlink(temp_path)
+                                    except Exception as e:
+                                        logger.warning(f"Failed to delete temp file: {e}")
+
+                if preview_downloaded and preview_path:
+                    metadata.preview_url = preview_path.replace(os.sep, '/')
+                    metadata.preview_nsfw_level = nsfw_level
+                    if download_id and download_id in self._active_downloads:
+                        self._active_downloads[download_id]['preview_path'] = preview_path
 
-                # Report preview download completion
                 if progress_callback:
                     await progress_callback(3)  # 3% progress after preview download
 
@@ -675,7 +712,15 @@ class DownloadManager:
                         except Exception as e:
                             logger.error(f"Error deleting metadata file: {e}")
 
-                    # Delete preview file if exists (.webp or .mp4)
+                    preview_path_value = download_info.get('preview_path')
+                    if preview_path_value and os.path.exists(preview_path_value):
+                        try:
+                            os.unlink(preview_path_value)
+                            logger.debug(f"Deleted preview file: {preview_path_value}")
+                        except Exception as e:
+                            logger.error(f"Error deleting preview file: {e}")
+
+                    # Delete preview file if exists (.webp or .mp4) for legacy paths
                     for preview_ext in ['.webp', '.mp4']:
                         preview_path = os.path.splitext(file_path)[0] + preview_ext
                         if os.path.exists(preview_path):
@@ -708,4 +753,4 @@ class DownloadManager:
                 }
                 for task_id, info in self._active_downloads.items()
             ]
-        }
+        }

py/services/downloader.py

@@ -16,7 +16,7 @@ import asyncio
 import aiohttp
 from datetime import datetime
 from typing import Optional, Dict, Tuple, Callable, Union
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 
 logger = logging.getLogger(__name__)
 
@@ -94,12 +94,13 @@ class Downloader:
         
         # Check for app-level proxy settings
         proxy_url = None
-        if settings.get('proxy_enabled', False):
-            proxy_host = settings.get('proxy_host', '').strip()
-            proxy_port = settings.get('proxy_port', '').strip()
-            proxy_type = settings.get('proxy_type', 'http').lower()
-            proxy_username = settings.get('proxy_username', '').strip()
-            proxy_password = settings.get('proxy_password', '').strip()
+        settings_manager = get_settings_manager()
+        if settings_manager.get('proxy_enabled', False):
+            proxy_host = settings_manager.get('proxy_host', '').strip()
+            proxy_port = settings_manager.get('proxy_port', '').strip()
+            proxy_type = settings_manager.get('proxy_type', 'http').lower()
+            proxy_username = settings_manager.get('proxy_username', '').strip()
+            proxy_password = settings_manager.get('proxy_password', '').strip()
             
             if proxy_host and proxy_port:
                 # Build proxy URL
@@ -146,7 +147,8 @@ class Downloader:
         
         if use_auth:
             # Add CivitAI API key if available
-            api_key = settings.get('civitai_api_key')
+            settings_manager = get_settings_manager()
+            api_key = settings_manager.get('civitai_api_key')
             if api_key:
                 headers['Authorization'] = f'Bearer {api_key}'
                 headers['Content-Type'] = 'application/json'

py/services/example_images_cleanup_service.py

@@ -11,7 +11,7 @@ from pathlib import Path
 from typing import Dict, List, Tuple
 
 from .service_registry import ServiceRegistry
-from .settings_manager import settings
+from .settings_manager import get_settings_manager
 from ..utils.example_images_paths import iter_library_roots
 
 
@@ -62,7 +62,8 @@ class ExampleImagesCleanupService:
     async def cleanup_example_image_folders(self) -> Dict[str, object]:
         """Clean empty or orphaned example image folders by moving them under a deleted bucket."""
 
-        example_images_path = settings.get("example_images_path")
+        settings_manager = get_settings_manager()
+        example_images_path = settings_manager.get("example_images_path")
         if not example_images_path:
             logger.debug("Cleanup skipped: example images path not configured")
             return {

py/services/metadata_service.py

@@ -6,7 +6,7 @@ from .model_metadata_provider import (
     CivitaiModelMetadataProvider,
     FallbackMetadataProvider
 )
-from .settings_manager import settings
+from .settings_manager import get_settings_manager
 from .metadata_archive_manager import MetadataArchiveManager
 from .service_registry import ServiceRegistry
 
@@ -21,7 +21,8 @@ async def initialize_metadata_providers():
     provider_manager.default_provider = None
     
     # Get settings
-    enable_archive_db = settings.get('enable_metadata_archive_db', False)
+    settings_manager = get_settings_manager()
+    enable_archive_db = settings_manager.get('enable_metadata_archive_db', False)
     
     providers = []
     
@@ -87,7 +88,8 @@ async def update_metadata_providers():
     """Update metadata providers based on current settings"""
     try:
         # Get current settings
-        enable_archive_db = settings.get('enable_metadata_archive_db', False)
+        settings_manager = get_settings_manager()
+        enable_archive_db = settings_manager.get('enable_metadata_archive_db', False)
         
         # Reinitialize all providers with new settings
         provider_manager = await initialize_metadata_providers()

py/services/model_cache.py

@@ -1,6 +1,6 @@
 import asyncio
-from typing import List, Dict, Tuple
-from dataclasses import dataclass
+from typing import Any, Dict, List, Optional, Tuple
+from dataclasses import dataclass, field
 from operator import itemgetter
 from natsort import natsorted
 
@@ -17,10 +17,12 @@ SUPPORTED_SORT_MODES = [
 
 @dataclass
 class ModelCache:
-    """Cache structure for model data with extensible sorting"""
+    """Cache structure for model data with extensible sorting."""
+
     raw_data: List[Dict]
     folders: List[str]
-    
+    version_index: Dict[int, Dict] = field(default_factory=dict)
+
     def __post_init__(self):
         self._lock = asyncio.Lock()
         # Cache for last sort: (sort_key, order) -> sorted list
@@ -28,6 +30,58 @@ class ModelCache:
         self._last_sorted_data: List[Dict] = []
         # Default sort on init
         asyncio.create_task(self.resort())
+        self.rebuild_version_index()
+
+    @staticmethod
+    def _normalize_version_id(value: Any) -> Optional[int]:
+        """Normalize a potential version identifier into an integer."""
+
+        if isinstance(value, int):
+            return value
+        if isinstance(value, str):
+            try:
+                return int(value)
+            except ValueError:
+                return None
+        return None
+
+    def rebuild_version_index(self) -> None:
+        """Rebuild the version index from the current raw data."""
+
+        self.version_index = {}
+        for item in self.raw_data:
+            self.add_to_version_index(item)
+
+    def add_to_version_index(self, item: Dict) -> None:
+        """Register a cache item in the version index if possible."""
+
+        civitai_data = item.get('civitai') if isinstance(item, dict) else None
+        if not isinstance(civitai_data, dict):
+            return
+
+        version_id = self._normalize_version_id(civitai_data.get('id'))
+        if version_id is None:
+            return
+
+        self.version_index[version_id] = item
+
+    def remove_from_version_index(self, item: Dict) -> None:
+        """Remove a cache item from the version index if present."""
+
+        civitai_data = item.get('civitai') if isinstance(item, dict) else None
+        if not isinstance(civitai_data, dict):
+            return
+
+        version_id = self._normalize_version_id(civitai_data.get('id'))
+        if version_id is None:
+            return
+
+        existing = self.version_index.get(version_id)
+        if existing is item or (
+            isinstance(existing, dict)
+            and existing.get('file_path') == item.get('file_path')
+        ):
+            self.version_index.pop(version_id, None)
 
     async def resort(self):
         """Resort cached data according to last sort mode if set"""
@@ -41,6 +95,7 @@ class ModelCache:
 
             all_folders = set(l['folder'] for l in self.raw_data)
             self.folders = sorted(list(all_folders), key=lambda x: x.lower())
+            self.rebuild_version_index()
 
     def _sort_data(self, data: List[Dict], sort_key: str, order: str) -> List[Dict]:
         """Sort data by sort_key and order"""

py/services/model_file_service.py

@@ -6,7 +6,7 @@ from abc import ABC, abstractmethod
 
 from ..utils.utils import calculate_relative_path_for_model, remove_empty_dirs
 from ..utils.constants import AUTO_ORGANIZE_BATCH_SIZE
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 
 logger = logging.getLogger(__name__)
 
@@ -114,7 +114,8 @@ class ModelFileService:
                 raise ValueError('No model roots configured')
             
             # Check if flat structure is configured for this model type
-            path_template = settings.get_download_path_template(self.model_type)
+            settings_manager = get_settings_manager()
+            path_template = settings_manager.get_download_path_template(self.model_type)
             result.is_flat_structure = not path_template
             
             # Initialize tracking

py/services/model_metadata_provider.py

@@ -1,7 +1,7 @@
 from abc import ABC, abstractmethod
 import json
 import logging
-from typing import Optional, Dict, Tuple, Any
+from typing import Optional, Dict, Tuple, Any, List
 from .downloader import get_downloader
 
 try:
@@ -61,6 +61,11 @@ class ModelMetadataProvider(ABC):
         """Fetch model version metadata"""
         pass
 
+    @abstractmethod
+    async def get_user_models(self, username: str) -> Optional[List[Dict]]:
+        """Fetch models owned by the specified user"""
+        pass
+
 class CivitaiModelMetadataProvider(ModelMetadataProvider):
     """Provider that uses Civitai API for metadata"""
     
@@ -79,6 +84,9 @@ class CivitaiModelMetadataProvider(ModelMetadataProvider):
     async def get_model_version_info(self, version_id: str) -> Tuple[Optional[Dict], Optional[str]]:
         return await self.client.get_model_version_info(version_id)
 
+    async def get_user_models(self, username: str) -> Optional[List[Dict]]:
+        return await self.client.get_user_models(username)
+
 class CivArchiveModelMetadataProvider(ModelMetadataProvider):
     """Provider that uses CivArchive HTML page parsing for metadata"""
     
@@ -197,6 +205,10 @@ class CivArchiveModelMetadataProvider(ModelMetadataProvider):
         """Not supported by CivArchive provider - requires both model_id and version_id"""
         return None, "CivArchive provider requires both model_id and version_id"
 
+    async def get_user_models(self, username: str) -> Optional[List[Dict]]:
+        """Not supported by CivArchive provider"""
+        return None
+
 class SQLiteModelMetadataProvider(ModelMetadataProvider):
     """Provider that uses SQLite database for metadata"""
     
@@ -329,20 +341,24 @@ class SQLiteModelMetadataProvider(ModelMetadataProvider):
         """Fetch model version metadata from SQLite database"""
         async with self._aiosqlite.connect(self.db_path) as db:
             db.row_factory = self._aiosqlite.Row
-            
+
             # Get version details
             version_query = "SELECT model_id FROM model_versions WHERE id = ?"
             cursor = await db.execute(version_query, (version_id,))
             version_row = await cursor.fetchone()
-            
+
             if not version_row:
                 return None, "Model version not found"
-                
+
             model_id = version_row['model_id']
-            
+
             # Build complete version data with model info
             version_data = await self._get_version_with_model_data(db, model_id, version_id)
             return version_data, None
+
+    async def get_user_models(self, username: str) -> Optional[List[Dict]]:
+        """Listing models by username is not supported for archive database"""
+        return None
     
     async def _get_version_with_model_data(self, db, model_id, version_id) -> Optional[Dict]:
         """Helper to build version data with model information"""
@@ -481,6 +497,17 @@ class FallbackMetadataProvider(ModelMetadataProvider):
                 continue
         return None, "No provider could retrieve the data"
 
+    async def get_user_models(self, username: str) -> Optional[List[Dict]]:
+        for provider in self.providers:
+            try:
+                result = await provider.get_user_models(username)
+                if result is not None:
+                    return result
+            except Exception as e:
+                logger.debug(f"Provider failed for get_user_models: {e}")
+                continue
+        return None
+
 class ModelMetadataProviderManager:
     """Manager for selecting and using model metadata providers"""
     
@@ -522,6 +549,11 @@ class ModelMetadataProviderManager:
         """Fetch model version info using specified or default provider"""
         provider = self._get_provider(provider_name)
         return await provider.get_model_version_info(version_id)
+
+    async def get_user_models(self, username: str, provider_name: str = None) -> Optional[List[Dict]]:
+        """Fetch models owned by the specified user"""
+        provider = self._get_provider(provider_name)
+        return await provider.get_user_models(username)
         
     def _get_provider(self, provider_name: str = None) -> ModelMetadataProvider:
         """Get provider by name or default provider"""

py/services/model_scanner.py

@@ -634,7 +634,8 @@ class ModelScanner:
                                 if model_data:
                                     # Add to cache
                                     self._cache.raw_data.append(model_data)
-                                    
+                                    self._cache.add_to_version_index(model_data)
+
                                     # Update hash index if available
                                     if 'sha256' in model_data and 'file_path' in model_data:
                                         self._hash_index.add_entry(model_data['sha256'].lower(), model_data['file_path'])
@@ -661,7 +662,9 @@ class ModelScanner:
                 for path in missing_files:
                     try:
                         model_to_remove = path_to_item[path]
-                        
+
+                        self._cache.remove_from_version_index(model_to_remove)
+
                         # Update tags count
                         for tag in model_to_remove.get('tags', []):
                             if tag in self._tags_count:
@@ -684,6 +687,8 @@ class ModelScanner:
                 all_folders = set(item.get('folder', '') for item in self._cache.raw_data)
                 self._cache.folders = sorted(list(all_folders), key=lambda x: x.lower())
 
+                self._cache.rebuild_version_index()
+
                 # Resort cache
                 await self._cache.resort()
 
@@ -829,6 +834,8 @@ class ModelScanner:
         else:
             self._cache.raw_data = list(scan_result.raw_data)
 
+        self._cache.rebuild_version_index()
+
         await self._cache.resort()
 
     async def _gather_model_data(
@@ -934,7 +941,8 @@ class ModelScanner:
             
             # Add to cache
             self._cache.raw_data.append(metadata_dict)
-            
+            self._cache.add_to_version_index(metadata_dict)
+
             # Resort cache data
             await self._cache.resort()
             
@@ -1076,6 +1084,9 @@ class ModelScanner:
         cache = await self.get_cached_data()
 
         existing_item = next((item for item in cache.raw_data if item['file_path'] == original_path), None)
+        if existing_item:
+            cache.remove_from_version_index(existing_item)
+
         if existing_item and 'tags' in existing_item:
             for tag in existing_item.get('tags', []):
                 if tag in self._tags_count:
@@ -1106,6 +1117,7 @@ class ModelScanner:
             )
 
             cache.raw_data.append(cache_entry)
+            cache.add_to_version_index(cache_entry)
 
             sha_value = cache_entry.get('sha256')
             if sha_value:
@@ -1117,6 +1129,8 @@ class ModelScanner:
             for tag in cache_entry.get('tags', []):
                 self._tags_count[tag] = self._tags_count.get(tag, 0) + 1
 
+        cache.rebuild_version_index()
+
         await cache.resort()
 
         if cache_modified:
@@ -1339,11 +1353,12 @@ class ModelScanner:
             # Update hash index
             for model in models_to_remove:
                 file_path = model['file_path']
+                self._cache.remove_from_version_index(model)
                 if hasattr(self, '_hash_index') and self._hash_index:
                     # Get the hash and filename before removal for duplicate checking
                     file_name = os.path.splitext(os.path.basename(file_path))[0]
                     hash_val = model.get('sha256', '').lower()
-                    
+
                     # Remove from hash index
                     self._hash_index.remove_by_path(file_path, hash_val)
                     
@@ -1352,8 +1367,9 @@ class ModelScanner:
             
             # Update cache data
             self._cache.raw_data = [item for item in self._cache.raw_data if item['file_path'] not in file_paths]
-            
+
             # Resort cache
+            self._cache.rebuild_version_index()
             await self._cache.resort()
 
             await self._persist_current_cache()
@@ -1393,16 +1409,17 @@ class ModelScanner:
         Returns:
             bool: True if the model version exists, False otherwise
         """
+        try:
+            normalized_id = int(model_version_id)
+        except (TypeError, ValueError):
+            return False
+
         try:
             cache = await self.get_cached_data()
-            if not cache or not cache.raw_data:
+            if not cache:
                 return False
 
-            for item in cache.raw_data:
-                if item.get('civitai') and item['civitai'].get('id') == model_version_id:
-                    return True
-
-            return False
+            return normalized_id in cache.version_index
         except Exception as e:
             logger.error(f"Error checking model version existence: {e}")
             return False

py/services/persistent_model_cache.py

@@ -351,7 +351,7 @@ class PersistentModelCache:
 
 
 def get_persistent_cache() -> PersistentModelCache:
-    from .settings_manager import settings as settings_service  # Local import to avoid cycles
+    from .settings_manager import get_settings_manager  # Local import to avoid cycles
 
-    library_name = settings_service.get_active_library_name()
+    library_name = get_settings_manager().get_active_library_name()
     return PersistentModelCache.get_default(library_name)

py/services/preview_asset_service.py

@@ -5,8 +5,10 @@ from __future__ import annotations
 import logging
 import os
 from typing import Awaitable, Callable, Dict, Optional, Sequence
+from urllib.parse import urlparse
 
 from ..utils.constants import CARD_PREVIEW_WIDTH, PREVIEW_EXTENSIONS
+from ..utils.civitai_utils import rewrite_preview_url
 
 logger = logging.getLogger(__name__)
 
@@ -45,23 +47,59 @@ class PreviewAssetService:
         base_name = os.path.splitext(os.path.splitext(os.path.basename(metadata_path))[0])[0]
         preview_dir = os.path.dirname(metadata_path)
         is_video = first_preview.get("type") == "video"
+        preview_url = first_preview.get("url")
+
+        if not preview_url:
+            return
+
+        def extension_from_url(url: str, fallback: str) -> str:
+            try:
+                parsed = urlparse(url)
+            except ValueError:
+                return fallback
+            ext = os.path.splitext(parsed.path)[1]
+            return ext or fallback
+
+        downloader = await self._downloader_factory()
 
         if is_video:
-            extension = ".mp4"
+            extension = extension_from_url(preview_url, ".mp4")
             preview_path = os.path.join(preview_dir, base_name + extension)
-            downloader = await self._downloader_factory()
-            success, result = await downloader.download_file(
-                first_preview["url"], preview_path, use_auth=False
-            )
-            if success:
-                local_metadata["preview_url"] = preview_path.replace(os.sep, "/")
-                local_metadata["preview_nsfw_level"] = first_preview.get("nsfwLevel", 0)
+            rewritten_url, rewritten = rewrite_preview_url(preview_url, media_type="video")
+
+            attempt_urls = []
+            if rewritten:
+                attempt_urls.append(rewritten_url)
+            attempt_urls.append(preview_url)
+
+            seen: set[str] = set()
+            for candidate in attempt_urls:
+                if not candidate or candidate in seen:
+                    continue
+                seen.add(candidate)
+
+                success, _ = await downloader.download_file(candidate, preview_path, use_auth=False)
+                if success:
+                    local_metadata["preview_url"] = preview_path.replace(os.sep, "/")
+                    local_metadata["preview_nsfw_level"] = first_preview.get("nsfwLevel", 0)
+                    return
         else:
+            rewritten_url, rewritten = rewrite_preview_url(preview_url, media_type="image")
+            if rewritten:
+                extension = extension_from_url(preview_url, ".png")
+                preview_path = os.path.join(preview_dir, base_name + extension)
+                success, _ = await downloader.download_file(
+                    rewritten_url, preview_path, use_auth=False
+                )
+                if success:
+                    local_metadata["preview_url"] = preview_path.replace(os.sep, "/")
+                    local_metadata["preview_nsfw_level"] = first_preview.get("nsfwLevel", 0)
+                    return
+
             extension = ".webp"
             preview_path = os.path.join(preview_dir, base_name + extension)
-            downloader = await self._downloader_factory()
             success, content, _headers = await downloader.download_to_memory(
-                first_preview["url"], use_auth=False
+                preview_url, use_auth=False
             )
             if not success:
                 return

py/services/settings_manager.py

@@ -3,6 +3,7 @@ import json
 import os
 import logging
 from datetime import datetime, timezone
+from threading import Lock
 from typing import Any, Dict, Iterable, List, Mapping, Optional
 
 from ..utils.settings_paths import ensure_settings_file
@@ -688,4 +689,38 @@ class SettingsManager:
         
         return templates.get(model_type, '{base_model}/{first_tag}')
 
-settings = SettingsManager()
+
+_SETTINGS_MANAGER: Optional["SettingsManager"] = None
+_SETTINGS_MANAGER_LOCK = Lock()
+# Legacy module-level alias for backwards compatibility with callers that
+# monkeypatch ``py.services.settings_manager.settings`` during tests.
+settings: Optional["SettingsManager"] = None
+
+
+def get_settings_manager() -> "SettingsManager":
+    """Return the lazily initialised global :class:`SettingsManager`."""
+
+    global _SETTINGS_MANAGER, settings
+    if settings is not None:
+        return settings
+
+    if _SETTINGS_MANAGER is None:
+        with _SETTINGS_MANAGER_LOCK:
+            if _SETTINGS_MANAGER is None:
+                _SETTINGS_MANAGER = SettingsManager()
+
+    settings = _SETTINGS_MANAGER
+    return _SETTINGS_MANAGER
+
+
+def reset_settings_manager() -> None:
+    """Reset the cached settings manager instance.
+
+    Primarily intended for tests so they can configure the settings
+    directory before the manager touches the filesystem.
+    """
+
+    global _SETTINGS_MANAGER, settings
+    with _SETTINGS_MANAGER_LOCK:
+        _SETTINGS_MANAGER = None
+        settings = None

py/services/use_cases/bulk_metadata_refresh_use_case.py

@@ -6,6 +6,7 @@ import logging
 from typing import Any, Dict, Optional, Protocol, Sequence
 
 from ..metadata_sync_service import MetadataSyncService
+from ...utils.metadata_manager import MetadataManager
 
 
 class MetadataRefreshProgressReporter(Protocol):
@@ -70,6 +71,7 @@ class BulkMetadataRefreshUseCase:
         for model in to_process:
             try:
                 original_name = model.get("model_name")
+                await MetadataManager.hydrate_model_data(model)
                 result, _ = await self._metadata_sync.fetch_and_update_model(
                     sha256=model["sha256"],
                     file_path=model["file_path"],

py/utils/civitai_utils.py

@@ -0,0 +1,48 @@
+"""Utilities for working with Civitai assets."""
+
+from __future__ import annotations
+
+from urllib.parse import urlparse, urlunparse
+
+
+def rewrite_preview_url(source_url: str | None, media_type: str | None = None) -> tuple[str | None, bool]:
+    """Rewrite Civitai preview URLs to use optimized renditions.
+
+    Args:
+        source_url: Original preview URL from the Civitai API.
+        media_type: Optional media type hint (e.g. ``"image"`` or ``"video"``).
+
+    Returns:
+        A tuple of the potentially rewritten URL and a flag indicating whether the
+        replacement occurred. When the URL is not rewritten, the original value is
+        returned with ``False``.
+    """
+    if not source_url:
+        return source_url, False
+
+    try:
+        parsed = urlparse(source_url)
+    except ValueError:
+        return source_url, False
+
+    if parsed.netloc.lower() != "image.civitai.com":
+        return source_url, False
+
+    replacement = "/width=450,optimized=true"
+    if (media_type or "").lower() == "video":
+        replacement = "/transcode=true,width=450,optimized=true"
+
+    if "/original=true" not in parsed.path:
+        return source_url, False
+
+    updated_path = parsed.path.replace("/original=true", replacement, 1)
+    if updated_path == parsed.path:
+        return source_url, False
+
+    rewritten = urlunparse(parsed._replace(path=updated_path))
+    print(rewritten)
+    return rewritten, True
+
+
+__all__ = ["rewrite_preview_url"]
+

py/utils/constants.py

@@ -48,6 +48,13 @@ SUPPORTED_MEDIA_EXTENSIONS = {
 # Valid Lora types
 VALID_LORA_TYPES = ['lora', 'locon', 'dora']
 
+# Supported Civitai model types for user model queries (case-insensitive)
+CIVITAI_USER_MODEL_TYPES = [
+    *VALID_LORA_TYPES,
+    'textualinversion',
+    'checkpoint',
+]
+
 # Auto-organize settings
 AUTO_ORGANIZE_BATCH_SIZE = 50  # Process models in batches to avoid overwhelming the system
 

py/utils/example_images_download_manager.py

@@ -18,7 +18,7 @@ from ..utils.metadata_manager import MetadataManager
 from .example_images_processor import ExampleImagesProcessor
 from .example_images_metadata import MetadataUpdater
 from ..services.downloader import get_downloader
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 
 
 class ExampleImagesDownloadError(RuntimeError):
@@ -107,7 +107,7 @@ class DownloadManager:
         self._state_lock = state_lock or asyncio.Lock()
 
     def _resolve_output_dir(self, library_name: str | None = None) -> str:
-        base_path = settings.get('example_images_path')
+        base_path = get_settings_manager().get('example_images_path')
         if not base_path:
             return ''
         return ensure_library_root_exists(library_name)
@@ -126,7 +126,8 @@ class DownloadManager:
                 model_types = data.get('model_types', ['lora', 'checkpoint'])
                 delay = float(data.get('delay', 0.2))
 
-                base_path = settings.get('example_images_path')
+                settings_manager = get_settings_manager()
+                base_path = settings_manager.get('example_images_path')
 
                 if not base_path:
                     error_msg = 'Example images path not configured in settings'
@@ -138,7 +139,7 @@ class DownloadManager:
                         }
                     raise DownloadConfigurationError(error_msg)
 
-                active_library = settings.get_active_library_name()
+                active_library = get_settings_manager().get_active_library_name()
                 output_dir = self._resolve_output_dir(active_library)
                 if not output_dir:
                     raise DownloadConfigurationError('Example images path not configured in settings')
@@ -151,7 +152,7 @@ class DownloadManager:
                 progress_file = os.path.join(output_dir, '.download_progress.json')
                 progress_source = progress_file
                 if uses_library_scoped_folders():
-                    legacy_root = settings.get('example_images_path') or ''
+                    legacy_root = get_settings_manager().get('example_images_path') or ''
                     legacy_progress = os.path.join(legacy_root, '.download_progress.json') if legacy_root else ''
                     if legacy_progress and os.path.exists(legacy_progress) and not os.path.exists(progress_file):
                         try:
@@ -555,11 +556,12 @@ class DownloadManager:
             if not model_hashes:
                 raise DownloadConfigurationError('Missing model_hashes parameter')
 
-            base_path = settings.get('example_images_path')
+            settings_manager = get_settings_manager()
+            base_path = settings_manager.get('example_images_path')
 
             if not base_path:
                 raise DownloadConfigurationError('Example images path not configured in settings')
-            active_library = settings.get_active_library_name()
+            active_library = settings_manager.get_active_library_name()
             output_dir = self._resolve_output_dir(active_library)
             if not output_dir:
                 raise DownloadConfigurationError('Example images path not configured in settings')

py/utils/example_images_file_manager.py

@@ -3,7 +3,7 @@ import os
 import sys
 import subprocess
 from aiohttp import web
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 from ..utils.example_images_paths import (
     get_model_folder,
     get_model_relative_path,
@@ -37,7 +37,8 @@ class ExampleImagesFileManager:
                 }, status=400)
             
             # Get example images path from settings
-            example_images_path = settings.get('example_images_path')
+            settings_manager = get_settings_manager()
+            example_images_path = settings_manager.get('example_images_path')
             if not example_images_path:
                 return web.json_response({
                     'success': False,
@@ -109,7 +110,8 @@ class ExampleImagesFileManager:
                 }, status=400)
             
             # Get example images path from settings
-            example_images_path = settings.get('example_images_path')
+            settings_manager = get_settings_manager()
+            example_images_path = settings_manager.get('example_images_path')
             if not example_images_path:
                 return web.json_response({
                     'success': False,
@@ -183,7 +185,8 @@ class ExampleImagesFileManager:
                 }, status=400)
             
             # Get example images path from settings
-            example_images_path = settings.get('example_images_path')
+            settings_manager = get_settings_manager()
+            example_images_path = settings_manager.get('example_images_path')
             if not example_images_path:
                 return web.json_response({
                     'has_images': False

py/utils/example_images_metadata.py

@@ -1,12 +1,13 @@
 import logging
 import os
 import re
+from typing import TYPE_CHECKING, Any, Dict, Optional
 
 from ..recipes.constants import GEN_PARAM_KEYS
 from ..services.metadata_service import get_default_metadata_provider, get_metadata_provider
 from ..services.metadata_sync_service import MetadataSyncService
 from ..services.preview_asset_service import PreviewAssetService
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 from ..services.downloader import get_downloader
 from ..utils.constants import SUPPORTED_MEDIA_EXTENSIONS
 from ..utils.exif_utils import ExifUtils
@@ -20,13 +21,46 @@ _preview_service = PreviewAssetService(
     exif_utils=ExifUtils,
 )
 
-_metadata_sync_service = MetadataSyncService(
-    metadata_manager=MetadataManager,
-    preview_service=_preview_service,
-    settings=settings,
-    default_metadata_provider_factory=get_default_metadata_provider,
-    metadata_provider_selector=get_metadata_provider,
-)
+_metadata_sync_service: MetadataSyncService | None = None
+_metadata_sync_service_settings: Optional["SettingsManager"] = None
+
+if TYPE_CHECKING:  # pragma: no cover - import for type checkers only
+    from ..services.settings_manager import SettingsManager
+
+
+def _build_metadata_sync_service(settings_manager: "SettingsManager") -> MetadataSyncService:
+    """Construct a metadata sync service bound to the provided settings."""
+
+    return MetadataSyncService(
+        metadata_manager=MetadataManager,
+        preview_service=_preview_service,
+        settings=settings_manager,
+        default_metadata_provider_factory=get_default_metadata_provider,
+        metadata_provider_selector=get_metadata_provider,
+    )
+
+
+def _get_metadata_sync_service() -> MetadataSyncService:
+    """Return the shared metadata sync service, initialising it lazily."""
+
+    global _metadata_sync_service, _metadata_sync_service_settings
+
+    settings_manager = get_settings_manager()
+
+    if isinstance(_metadata_sync_service, MetadataSyncService):
+        if _metadata_sync_service_settings is not settings_manager:
+            _metadata_sync_service = _build_metadata_sync_service(settings_manager)
+            _metadata_sync_service_settings = settings_manager
+    elif _metadata_sync_service is None:
+        _metadata_sync_service = _build_metadata_sync_service(settings_manager)
+        _metadata_sync_service_settings = settings_manager
+    else:
+        # Tests may inject stand-ins that do not match the sync service type. Preserve
+        # those injections while still updating our cached settings reference so the
+        # next real service instantiation uses the current configuration.
+        _metadata_sync_service_settings = settings_manager
+
+    return _metadata_sync_service
 
 
 class MetadataUpdater:
@@ -71,7 +105,8 @@ class MetadataUpdater:
             async def update_cache_func(old_path, new_path, metadata):
                 return await scanner.update_single_model_cache(old_path, new_path, metadata)
             
-            success, error = await _metadata_sync_service.fetch_and_update_model(
+            await MetadataManager.hydrate_model_data(model_data)
+            success, error = await _get_metadata_sync_service().fetch_and_update_model(
                 sha256=model_hash,
                 file_path=file_path,
                 model_data=model_data,
@@ -151,16 +186,16 @@ class MetadataUpdater:
                         if is_supported:
                             local_images_paths.append(file_path)
             
+            await MetadataManager.hydrate_model_data(model)
+            civitai_data = model.setdefault('civitai', {})
+
             # Check if metadata update is needed (no civitai field or empty images)
-            needs_update = not model.get('civitai') or not model.get('civitai', {}).get('images')
+            needs_update = not civitai_data or not civitai_data.get('images')
             
             if needs_update and local_images_paths:
                 logger.debug(f"Found {len(local_images_paths)} local example images for {model.get('model_name')}, updating metadata")
                 
                 # Create or get civitai field
-                if not model.get('civitai'):
-                    model['civitai'] = {}
-                
                 # Create images array
                 images = []
                 
@@ -195,16 +230,13 @@ class MetadataUpdater:
                     images.append(image_entry)
                 
                 # Update the model's civitai.images field
-                model['civitai']['images'] = images
+                civitai_data['images'] = images
                 
                 # Save metadata to .metadata.json file
                 file_path = model.get('file_path')
                 try:
-                    # Create a copy of model data without 'folder' field
                     model_copy = model.copy()
                     model_copy.pop('folder', None)
-                    
-                    # Write metadata to file
                     await MetadataManager.save_metadata(file_path, model_copy)
                     logger.info(f"Saved metadata for {model.get('model_name')}")
                 except Exception as e:
@@ -237,16 +269,13 @@ class MetadataUpdater:
             tuple: (regular_images, custom_images) - Both image arrays
         """
         try:
-            # Ensure civitai field exists in model_data
-            if not model_data.get('civitai'):
-                model_data['civitai'] = {}
-            
-            # Ensure customImages array exists
-            if not model_data['civitai'].get('customImages'):
-                model_data['civitai']['customImages'] = []
-            
-            # Get current customImages array
-            custom_images = model_data['civitai']['customImages']
+            await MetadataManager.hydrate_model_data(model_data)
+            civitai_data = model_data.setdefault('civitai', {})
+            custom_images = civitai_data.get('customImages')
+
+            if not isinstance(custom_images, list):
+                custom_images = []
+                civitai_data['customImages'] = custom_images
             
             # Add new image entry for each imported file
             for path_tuple in newly_imported_paths:
@@ -304,11 +333,8 @@ class MetadataUpdater:
             file_path = model_data.get('file_path')
             if file_path:
                 try:
-                    # Create a copy of model data without 'folder' field
                     model_copy = model_data.copy()
                     model_copy.pop('folder', None)
-                    
-                    # Write metadata to file
                     await MetadataManager.save_metadata(file_path, model_copy)
                     logger.info(f"Saved metadata for {model_data.get('model_name')}")
                 except Exception as e:
@@ -319,7 +345,7 @@ class MetadataUpdater:
                 await scanner.update_single_model_cache(file_path, file_path, model_data)
             
             # Get regular images array (might be None)
-            regular_images = model_data['civitai'].get('images', [])
+            regular_images = civitai_data.get('images', [])
             
             # Return both image arrays
             return regular_images, custom_images

py/utils/example_images_migration.py

@@ -3,7 +3,7 @@ import logging
 import os
 import re
 import json
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 from ..services.service_registry import ServiceRegistry
 from ..utils.example_images_paths import iter_library_roots
 from ..utils.metadata_manager import MetadataManager
@@ -14,6 +14,25 @@ logger = logging.getLogger(__name__)
 
 CURRENT_NAMING_VERSION = 2  # Increment this when naming conventions change
 
+
+class _SettingsProxy:
+    def __init__(self):
+        self._manager = None
+
+    def _resolve(self):
+        if self._manager is None:
+            self._manager = get_settings_manager()
+        return self._manager
+
+    def get(self, *args, **kwargs):
+        return self._resolve().get(*args, **kwargs)
+
+    def __getattr__(self, item):
+        return getattr(self._resolve(), item)
+
+
+settings = _SettingsProxy()
+
 class ExampleImagesMigration:
     """Handles migrations for example images naming conventions"""
     

py/utils/example_images_paths.py

@@ -8,7 +8,7 @@ import re
 import shutil
 from typing import Iterable, List, Optional, Tuple
 
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 
 _HEX_PATTERN = re.compile(r"[a-fA-F0-9]{64}")
 
@@ -18,7 +18,8 @@ logger = logging.getLogger(__name__)
 def _get_configured_libraries() -> List[str]:
     """Return configured library names if multi-library support is enabled."""
 
-    libraries = settings.get("libraries")
+    settings_manager = get_settings_manager()
+    libraries = settings_manager.get("libraries")
     if isinstance(libraries, dict) and libraries:
         return list(libraries.keys())
     return []
@@ -27,7 +28,8 @@ def _get_configured_libraries() -> List[str]:
 def get_example_images_root() -> str:
     """Return the root directory configured for example images."""
 
-    root = settings.get("example_images_path") or ""
+    settings_manager = get_settings_manager()
+    root = settings_manager.get("example_images_path") or ""
     return os.path.abspath(root) if root else ""
 
 
@@ -41,7 +43,8 @@ def uses_library_scoped_folders() -> bool:
 def sanitize_library_name(library_name: Optional[str]) -> str:
     """Return a filesystem safe library name."""
 
-    name = library_name or settings.get_active_library_name() or "default"
+    settings_manager = get_settings_manager()
+    name = library_name or settings_manager.get_active_library_name() or "default"
     safe_name = re.sub(r"[^A-Za-z0-9_.-]", "_", name)
     return safe_name or "default"
 
@@ -161,11 +164,13 @@ def iter_library_roots() -> Iterable[Tuple[str, str]]:
                 results.append((library, get_library_root(library)))
         else:
             # Fall back to the active library to avoid skipping migrations/cleanup
-            active = settings.get_active_library_name() or "default"
+            settings_manager = get_settings_manager()
+            active = settings_manager.get_active_library_name() or "default"
             results.append((active, get_library_root(active)))
         return results
 
-    active = settings.get_active_library_name() or "default"
+    settings_manager = get_settings_manager()
+    active = settings_manager.get_active_library_name() or "default"
     return [(active, root)]
 
 

py/utils/example_images_processor.py

@@ -6,7 +6,7 @@ import string
 from aiohttp import web
 from ..utils.constants import SUPPORTED_MEDIA_EXTENSIONS
 from ..services.service_registry import ServiceRegistry
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 from ..utils.example_images_paths import get_model_folder, get_model_relative_path
 from .example_images_metadata import MetadataUpdater
 from ..utils.metadata_manager import MetadataManager
@@ -318,7 +318,7 @@ class ExampleImagesProcessor:
 
         try:
             # Get example images path
-            example_images_path = settings.get('example_images_path')
+            example_images_path = get_settings_manager().get('example_images_path')
             if not example_images_path:
                 raise ExampleImagesValidationError('No example images path configured')
 
@@ -442,7 +442,7 @@ class ExampleImagesProcessor:
                 }, status=400)
             
             # Get example images path
-            example_images_path = settings.get('example_images_path')
+            example_images_path = get_settings_manager().get('example_images_path')
             if not example_images_path:
                 return web.json_response({
                     'success': False,
@@ -475,15 +475,17 @@ class ExampleImagesProcessor:
                     'error': f"Model with hash {model_hash} not found in cache"
                 }, status=404)
             
-            # Check if model has custom images
-            if not model_data.get('civitai', {}).get('customImages'):
+            await MetadataManager.hydrate_model_data(model_data)
+            civitai_data = model_data.setdefault('civitai', {})
+            custom_images = civitai_data.get('customImages')
+
+            if not isinstance(custom_images, list) or not custom_images:
                 return web.json_response({
                     'success': False,
                     'error': f"Model has no custom images"
                 }, status=404)
             
             # Find the custom image with matching short_id
-            custom_images = model_data['civitai']['customImages']
             matching_image = None
             new_custom_images = []
             
@@ -527,17 +529,15 @@ class ExampleImagesProcessor:
                 logger.warning(f"File for custom example with id {short_id} not found, but metadata will still be updated")
             
             # Update metadata
-            model_data['civitai']['customImages'] = new_custom_images
+            civitai_data['customImages'] = new_custom_images
+            model_data.setdefault('civitai', {})['customImages'] = new_custom_images
             
             # Save updated metadata to file
             file_path = model_data.get('file_path')
             if file_path:
                 try:
-                    # Create a copy of model data without 'folder' field
                     model_copy = model_data.copy()
                     model_copy.pop('folder', None)
-                    
-                    # Write metadata to file
                     await MetadataManager.save_metadata(file_path, model_copy)
                     logger.debug(f"Saved updated metadata for {model_data.get('model_name')}")
                 except Exception as e:
@@ -551,7 +551,7 @@ class ExampleImagesProcessor:
                 await scanner.update_single_model_cache(file_path, file_path, model_data)
             
             # Get regular images array (might be None)
-            regular_images = model_data['civitai'].get('images', [])
+            regular_images = civitai_data.get('images', [])
             
             return web.json_response({
                 'success': True,
@@ -568,4 +568,4 @@ class ExampleImagesProcessor:
             }, status=500)
 
 
-    
+    

py/utils/metadata_manager.py

@@ -2,7 +2,7 @@ from datetime import datetime
 import os
 import json
 import logging
-from typing import Dict, Optional, Type, Union
+from typing import Any, Dict, Optional, Type, Union
 
 from .models import BaseModelMetadata, LoraMetadata
 from .file_utils import normalize_path, find_preview_file, calculate_sha256
@@ -53,6 +53,70 @@ class MetadataManager:
             error_type = "Invalid JSON" if isinstance(e, json.JSONDecodeError) else "Parse error"
             logger.error(f"{error_type} in metadata file: {metadata_path}. Error: {str(e)}. Skipping model to preserve existing data.")
             return None, True  # should_skip = True
+
+    @staticmethod
+    async def load_metadata_payload(file_path: str) -> Dict:
+        """
+        Load metadata and return it as a dictionary, including any unknown fields.
+        Falls back to reading the raw JSON file if parsing into a model class fails.
+        """
+
+        payload: Dict = {}
+        metadata_obj, should_skip = await MetadataManager.load_metadata(file_path)
+
+        if metadata_obj:
+            payload = metadata_obj.to_dict()
+            unknown_fields = getattr(metadata_obj, "_unknown_fields", None)
+            if isinstance(unknown_fields, dict):
+                payload.update(unknown_fields)
+        else:
+            if not should_skip:
+                metadata_path = (
+                    file_path
+                    if file_path.endswith(".metadata.json")
+                    else f"{os.path.splitext(file_path)[0]}.metadata.json"
+                )
+                if os.path.exists(metadata_path):
+                    try:
+                        with open(metadata_path, "r", encoding="utf-8") as handle:
+                            raw = json.load(handle)
+                        if isinstance(raw, dict):
+                            payload = raw
+                    except json.JSONDecodeError:
+                        logger.warning(
+                            "Failed to parse metadata file %s while loading payload",
+                            metadata_path,
+                        )
+                    except Exception as exc:  # pragma: no cover - defensive logging
+                        logger.warning("Failed to read metadata file %s: %s", metadata_path, exc)
+
+        if not isinstance(payload, dict):
+            payload = {}
+
+        if file_path:
+            payload.setdefault("file_path", normalize_path(file_path))
+
+        return payload
+
+    @staticmethod
+    async def hydrate_model_data(model_data: Dict[str, Any]) -> Dict[str, Any]:
+        """
+        Replace the provided model data with the authoritative payload from disk.
+        Preserves the cached folder entry if present.
+        """
+
+        file_path = model_data.get("file_path")
+        if not file_path:
+            return model_data
+
+        folder = model_data.get("folder")
+        payload = await MetadataManager.load_metadata_payload(file_path)
+        if folder is not None:
+            payload["folder"] = folder
+
+        model_data.clear()
+        model_data.update(payload)
+        return model_data
     
     @staticmethod
     async def save_metadata(path: str, metadata: Union[BaseModelMetadata, Dict]) -> bool:

py/utils/settings_paths.py

@@ -65,6 +65,12 @@ def ensure_settings_file(logger: Optional[logging.Logger] = None) -> str:
 
     logger = logger or _LOGGER
     target_path = get_settings_file_path(create_dir=True)
+    preferred_dir = user_config_dir(APP_NAME, appauthor=False)
+    preferred_path = os.path.join(preferred_dir, "settings.json")
+
+    if os.path.abspath(target_path) != os.path.abspath(preferred_path):
+        os.makedirs(preferred_dir, exist_ok=True)
+        target_path = preferred_path
     legacy_path = get_legacy_settings_path()
 
     if os.path.exists(legacy_path) and not os.path.exists(target_path):

py/utils/utils.py

@@ -3,7 +3,7 @@ import os
 from typing import Dict
 from ..services.service_registry import ServiceRegistry
 from ..config import config
-from ..services.settings_manager import settings
+from ..services.settings_manager import get_settings_manager
 from .constants import CIVITAI_MODEL_TAGS
 import asyncio
 
@@ -143,7 +143,8 @@ def calculate_relative_path_for_model(model_data: Dict, model_type: str = 'lora'
         Relative path string (empty string for flat structure)
     """
     # Get path template from settings for specific model type
-    path_template = settings.get_download_path_template(model_type)
+    settings_manager = get_settings_manager()
+    path_template = settings_manager.get_download_path_template(model_type)
 
     # If template is empty, return empty path (flat structure)
     if not path_template:
@@ -166,7 +167,7 @@ def calculate_relative_path_for_model(model_data: Dict, model_type: str = 'lora'
     model_tags = model_data.get('tags', [])
 
     # Apply mapping if available
-    base_model_mappings = settings.get('base_model_path_mappings', {})
+    base_model_mappings = settings_manager.get('base_model_path_mappings', {})
     mapped_base_model = base_model_mappings.get(base_model, base_model)
 
     # Find the first Civitai model tag that exists in model_tags

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "comfyui-lora-manager"
 description = "Revolutionize your workflow with the ultimate LoRA companion for ComfyUI!"
-version = "0.9.6"
+version = "0.9.7"
 license = {file = "LICENSE"}
 dependencies = [
     "aiohttp",

static/js/components/SidebarManager.js

@@ -21,6 +21,7 @@ export class SidebarManager {
         this.isInitialized = false;
         this.displayMode = 'tree'; // 'tree' or 'list'
         this.foldersList = [];
+        this.recursiveSearchEnabled = true;
         
         // Bind methods
         this.handleTreeClick = this.handleTreeClick.bind(this);
@@ -36,6 +37,7 @@ export class SidebarManager {
         this.updateContainerMargin = this.updateContainerMargin.bind(this);
         this.handleDisplayModeToggle = this.handleDisplayModeToggle.bind(this);
         this.handleFolderListClick = this.handleFolderListClick.bind(this);
+        this.handleRecursiveToggle = this.handleRecursiveToggle.bind(this);
     }
 
     async initialize(pageControls) {
@@ -89,6 +91,7 @@ export class SidebarManager {
         this.isHovering = false;
         this.apiClient = null;
         this.isInitialized = false;
+        this.recursiveSearchEnabled = true;
         
         // Reset container margin
         const container = document.querySelector('.container');
@@ -111,6 +114,7 @@ export class SidebarManager {
         const sidebar = document.getElementById('folderSidebar');
         const hoverArea = document.getElementById('sidebarHoverArea');
         const displayModeToggleBtn = document.getElementById('sidebarDisplayModeToggle');
+        const recursiveToggleBtn = document.getElementById('sidebarRecursiveToggle');
 
         if (pinToggleBtn) {
             pinToggleBtn.removeEventListener('click', this.handlePinToggle);
@@ -145,6 +149,9 @@ export class SidebarManager {
         if (displayModeToggleBtn) {
             displayModeToggleBtn.removeEventListener('click', this.handleDisplayModeToggle);
         }
+        if (recursiveToggleBtn) {
+            recursiveToggleBtn.removeEventListener('click', this.handleRecursiveToggle);
+        }
     }
 
     async init() {
@@ -197,7 +204,7 @@ export class SidebarManager {
     updateSidebarTitle() {
         const sidebarTitle = document.getElementById('sidebarTitle');
         if (sidebarTitle) {
-            sidebarTitle.textContent = `${this.apiClient.apiConfig.config.displayName} Root`;
+            sidebarTitle.textContent = translate('sidebar.modelRoot');
         }
     }
 
@@ -220,6 +227,12 @@ export class SidebarManager {
             collapseAllBtn.addEventListener('click', this.handleCollapseAll);
         }
 
+        // Recursive toggle button
+        const recursiveToggleBtn = document.getElementById('sidebarRecursiveToggle');
+        if (recursiveToggleBtn) {
+            recursiveToggleBtn.addEventListener('click', this.handleRecursiveToggle);
+        }
+
         // Tree click handler
         const folderTree = document.getElementById('sidebarFolderTree');
         if (folderTree) {
@@ -645,11 +658,33 @@ export class SidebarManager {
         this.displayMode = this.displayMode === 'tree' ? 'list' : 'tree';
         this.updateDisplayModeButton();
         this.updateCollapseAllButton();
+        this.updateRecursiveToggleButton();
         this.updateSearchRecursiveOption();
         this.saveDisplayMode();
         this.loadFolderTree(); // Reload with new display mode
     }
 
+    async handleRecursiveToggle(event) {
+        event.stopPropagation();
+
+        if (this.displayMode !== 'tree') {
+            return;
+        }
+
+        this.recursiveSearchEnabled = !this.recursiveSearchEnabled;
+        setStorageItem(`${this.pageType}_recursiveSearch`, this.recursiveSearchEnabled);
+        this.updateSearchRecursiveOption();
+        this.updateRecursiveToggleButton();
+
+        if (this.pageControls && typeof this.pageControls.resetAndReload === 'function') {
+            try {
+                await this.pageControls.resetAndReload(true);
+            } catch (error) {
+                console.error('Failed to reload models after toggling recursive search:', error);
+            }
+        }
+    }
+
     updateDisplayModeButton() {
         const displayModeBtn = document.getElementById('sidebarDisplayModeToggle');
         if (displayModeBtn) {
@@ -679,8 +714,35 @@ export class SidebarManager {
         }
     }
 
+    updateRecursiveToggleButton() {
+        const recursiveToggleBtn = document.getElementById('sidebarRecursiveToggle');
+        if (!recursiveToggleBtn) return;
+
+        const icon = recursiveToggleBtn.querySelector('i');
+        const isTreeMode = this.displayMode === 'tree';
+        const isActive = isTreeMode && this.recursiveSearchEnabled;
+
+        recursiveToggleBtn.classList.toggle('active', isActive);
+        recursiveToggleBtn.classList.toggle('disabled', !isTreeMode);
+        recursiveToggleBtn.setAttribute('aria-pressed', isActive ? 'true' : 'false');
+        recursiveToggleBtn.setAttribute('aria-disabled', isTreeMode ? 'false' : 'true');
+
+        if (icon) {
+            icon.className = 'fas fa-code-branch';
+        }
+
+        if (!isTreeMode) {
+            recursiveToggleBtn.title = translate('sidebar.recursiveUnavailable');
+        } else if (this.recursiveSearchEnabled) {
+            recursiveToggleBtn.title = translate('sidebar.recursiveOn');
+        } else {
+            recursiveToggleBtn.title = translate('sidebar.recursiveOff');
+        }
+    }
+
     updateSearchRecursiveOption() {
-        this.pageControls.pageState.searchOptions.recursive = this.displayMode === 'tree';
+        const isRecursive = this.displayMode === 'tree' && this.recursiveSearchEnabled;
+        this.pageControls.pageState.searchOptions.recursive = isRecursive;
     }
 
     updateTreeSelection() {
@@ -925,15 +987,18 @@ export class SidebarManager {
         const isPinned = getStorageItem(`${this.pageType}_sidebarPinned`, true);
         const expandedPaths = getStorageItem(`${this.pageType}_expandedNodes`, []);
         const displayMode = getStorageItem(`${this.pageType}_displayMode`, 'tree'); // 'tree' or 'list', default to 'tree'
+        const recursiveSearchEnabled = getStorageItem(`${this.pageType}_recursiveSearch`, true);
         
         this.isPinned = isPinned;
         this.expandedNodes = new Set(expandedPaths);
         this.displayMode = displayMode;
+        this.recursiveSearchEnabled = recursiveSearchEnabled;
         
         this.updatePinButton();
         this.updateDisplayModeButton();
         this.updateCollapseAllButton();
         this.updateSearchRecursiveOption();
+        this.updateRecursiveToggleButton();
     }
 
     restoreSelectedFolder() {
@@ -974,4 +1039,4 @@ export class SidebarManager {
 }
 
 // Create and export global instance
-export const sidebarManager = new SidebarManager();
+export const sidebarManager = new SidebarManager();

static/js/state/index.js

@@ -67,7 +67,7 @@ export const state = {
                 modelname: true,
                 tags: false,
                 creator: false,
-                recursive: true,
+                recursive: getStorageItem(`${MODEL_TYPES.LORA}_recursiveSearch`, true),
             },
             filters: {
                 baseModel: [],
@@ -116,7 +116,7 @@ export const state = {
                 filename: true,
                 modelname: true,
                 creator: false,
-                recursive: true,
+                recursive: getStorageItem(`${MODEL_TYPES.CHECKPOINT}_recursiveSearch`, true),
             },
             filters: {
                 baseModel: [],
@@ -144,7 +144,7 @@ export const state = {
                 modelname: true,
                 tags: false,
                 creator: false,
-                recursive: true,
+                recursive: getStorageItem(`${MODEL_TYPES.EMBEDDING}_recursiveSearch`, true),
             },
             filters: {
                 baseModel: [],
@@ -261,4 +261,4 @@ export function initPageState(pageType) {
         return getCurrentPageState();
     }
     return null;
-}
+}

static/js/utils/uiHelpers.js

@@ -435,8 +435,9 @@ export async function sendLoraToWorkflow(loraSyntax, replaceMode = false, syntax
       return true;
     } else {
       // Single node - send directly
-      const nodeId = Object.keys(registryData.data.nodes)[0];
-      return await sendToSpecificNode([nodeId], loraSyntax, replaceMode, syntaxType);
+      const nodes = registryData.data.nodes;
+      const nodeId = Object.keys(nodes)[0];
+      return await sendToSpecificNode([nodeId], nodes, loraSyntax, replaceMode, syntaxType);
     }
   } catch (error) {
     console.error('Failed to get registry:', error);
@@ -452,19 +453,65 @@ export async function sendLoraToWorkflow(loraSyntax, replaceMode = false, syntax
  * @param {boolean} replaceMode - Whether to replace existing LoRAs
  * @param {string} syntaxType - The type of syntax ('lora' or 'recipe')
  */
-async function sendToSpecificNode(nodeIds, loraSyntax, replaceMode, syntaxType) {
+function resolveNodeReference(nodeKey, nodesMap) {
+  if (!nodeKey) {
+    return null;
+  }
+
+  const directMatch = nodesMap?.[nodeKey];
+  if (directMatch) {
+    return {
+      node_id: directMatch.id,
+      graph_id: directMatch.graph_id ?? null,
+    };
+  }
+
+  if (typeof nodeKey === 'string' && nodeKey.includes(':')) {
+    const [graphId, ...rest] = nodeKey.split(':');
+    const nodeIdPart = rest.join(':');
+    const numericNodeId = Number(nodeIdPart);
+    return {
+      node_id: Number.isNaN(numericNodeId) ? nodeIdPart : numericNodeId,
+      graph_id: graphId || null,
+    };
+  }
+
+  const numericId = Number(nodeKey);
+  return {
+    node_id: Number.isNaN(numericId) ? nodeKey : numericId,
+    graph_id: null,
+  };
+}
+
+async function sendToSpecificNode(nodeIds, nodesMap, loraSyntax, replaceMode, syntaxType) {
   try {
     // Call the backend API to update the lora code
+    const requestBody = {
+      lora_code: loraSyntax,
+      mode: replaceMode ? 'replace' : 'append'
+    };
+
+    if (Array.isArray(nodeIds)) {
+      const references = nodeIds
+        .map((nodeKey) => resolveNodeReference(nodeKey, nodesMap))
+        .filter((reference) => reference && reference.node_id !== undefined);
+
+      if (references.length > 0) {
+        requestBody.node_ids = references;
+      }
+    } else if (nodeIds) {
+      const reference = resolveNodeReference(nodeIds, nodesMap);
+      if (reference) {
+        requestBody.node_ids = [reference];
+      }
+    }
+
     const response = await fetch('/api/lm/update-lora-code', {
       method: 'POST',
       headers: {
         'Content-Type': 'application/json'
       },
-      body: JSON.stringify({
-        node_ids: nodeIds,
-        lora_code: loraSyntax,
-        mode: replaceMode ? 'replace' : 'append'
-      })
+      body: JSON.stringify(requestBody)
     });
     
     const result = await response.json();
@@ -522,16 +569,17 @@ function showNodeSelector(nodes, loraSyntax, replaceMode, syntaxType) {
   hideNodeSelector();
   
   // Generate node list HTML with icons and proper colors
-  const nodeItems = Object.values(nodes).map(node => {
+  const nodeItems = Object.entries(nodes).map(([nodeKey, node]) => {
     const iconClass = NODE_TYPE_ICONS[node.type] || 'fas fa-question-circle';
     const bgColor = node.bgcolor || DEFAULT_NODE_COLOR;
-    
+    const graphLabel = node.graph_name ? ` (${node.graph_name})` : '';
+
     return `
-      <div class="node-item" data-node-id="${node.id}">
+      <div class="node-item" data-node-id="${nodeKey}">
         <div class="node-icon-indicator" style="background-color: ${bgColor}">
           <i class="${iconClass}"></i>
         </div>
-        <span>#${node.id} ${node.title}</span>
+        <span>#${node.id}${graphLabel} ${node.title}</span>
       </div>
     `;
   }).join('');
@@ -610,10 +658,10 @@ function setupNodeSelectorEvents(selector, nodes, loraSyntax, replaceMode, synta
     if (action === 'send-all') {
       // Send to all nodes
       const allNodeIds = Object.keys(nodes);
-      await sendToSpecificNode(allNodeIds, loraSyntax, replaceMode, syntaxType);
+      await sendToSpecificNode(allNodeIds, nodes, loraSyntax, replaceMode, syntaxType);
     } else if (nodeId) {
       // Send to specific node
-      await sendToSpecificNode([nodeId], loraSyntax, replaceMode, syntaxType);
+      await sendToSpecificNode([nodeId], nodes, loraSyntax, replaceMode, syntaxType);
     }
     
     hideNodeSelector();

templates/components/folder_sidebar.html

@@ -9,6 +9,9 @@
             <button class="sidebar-action-btn" id="sidebarDisplayModeToggle" title="{{ t('sidebar.switchToListView') }}">
                 <i class="fas fa-sitemap"></i>
             </button>
+            <button class="sidebar-action-btn active" id="sidebarRecursiveToggle" title="{{ t('sidebar.recursiveOn') }}" aria-pressed="true">
+                <i class="fas fa-code-branch"></i>
+            </button>
             <button class="sidebar-action-btn" id="sidebarCollapseAll" title="{{ t('sidebar.collapseAll') }}">
                 <i class="fas fa-compress-alt"></i>
             </button>

tests/conftest.py

@@ -73,6 +73,30 @@ nodes_mock.NODE_CLASS_MAPPINGS = {}
 sys.modules['nodes'] = nodes_mock
 
 
+@pytest.fixture(autouse=True)
+def _isolate_settings_dir(tmp_path_factory, monkeypatch):
+    """Redirect settings.json into a temporary directory for each test."""
+
+    settings_dir = tmp_path_factory.mktemp("settings_dir")
+
+    def fake_get_settings_dir(create: bool = True) -> str:
+        if create:
+            settings_dir.mkdir(exist_ok=True)
+        return str(settings_dir)
+
+    monkeypatch.setattr("py.utils.settings_paths.get_settings_dir", fake_get_settings_dir)
+    monkeypatch.setattr(
+        "py.utils.settings_paths.user_config_dir",
+        lambda *_args, **_kwargs: str(settings_dir),
+    )
+
+    from py.services import settings_manager as settings_manager_module
+
+    settings_manager_module.reset_settings_manager()
+    yield
+    settings_manager_module.reset_settings_manager()
+
+
 def pytest_pyfunc_call(pyfuncitem):
     """Allow bare async tests to run without pytest.mark.asyncio."""
     test_function = pyfuncitem.function

tests/frontend/utils/uiHelpers.dom.test.js

@@ -46,6 +46,7 @@ vi.mock(EVENT_MANAGER_MODULE, () => ({
     off: vi.fn(),
     addHandler: vi.fn(),
     removeHandler: vi.fn(),
+    setState: vi.fn(),
   },
 }));
 
@@ -62,6 +63,7 @@ describe('UI helper DOM utilities', () => {
 
   afterEach(() => {
     vi.useRealTimers();
+    delete global.fetch;
   });
 
   it('creates toast elements and cleans them up after timeout', async () => {
@@ -105,4 +107,53 @@ describe('UI helper DOM utilities', () => {
     expect(document.body.dataset.theme).toBe('dark');
     expect(document.querySelector('.theme-toggle').classList.contains('theme-dark')).toBe(true);
   });
+
+  it('renders subgraph names in the node selector list', async () => {
+    const registryResponse = {
+      success: true,
+      data: {
+        node_count: 2,
+        nodes: {
+          'root:1': {
+            id: 1,
+            graph_id: 'root',
+            graph_name: null,
+            title: 'Root Loader',
+            type: 1,
+            bgcolor: '#123456',
+          },
+          'subgraph-uuid:2': {
+            id: 2,
+            graph_id: 'subgraph-uuid',
+            graph_name: 'Character Subgraph',
+            title: 'Nested Loader',
+            type: 1,
+            bgcolor: '#654321',
+          },
+        },
+      },
+    };
+
+    global.fetch = vi.fn().mockResolvedValue({
+      json: async () => registryResponse,
+    });
+
+    document.body.innerHTML = '<div id="nodeSelector"></div>';
+
+    const { sendLoraToWorkflow } = await import(UI_HELPERS_MODULE);
+
+    const result = await sendLoraToWorkflow('<lora:test:1>');
+
+    expect(result).toBe(true);
+    expect(global.fetch).toHaveBeenCalledWith('/api/lm/get-registry');
+
+    const nodeLabels = Array.from(
+      document.querySelectorAll('#nodeSelector .node-item[data-node-id] span')
+    ).map((span) => span.textContent.trim());
+
+    expect(nodeLabels).toEqual([
+      '#1 Root Loader',
+      '#2 (Character Subgraph) Nested Loader',
+    ]);
+  });
 });

tests/routes/test_base_model_routes_smoke.py

@@ -16,10 +16,12 @@ from aiohttp.test_utils import TestClient, TestServer
 from py.config import config
 from py.routes.base_model_routes import BaseModelRoutes
 from py.services import model_file_service
+from py.services.metadata_sync_service import MetadataSyncService
 from py.services.model_file_service import AutoOrganizeResult
 from py.services.service_registry import ServiceRegistry
 from py.services.websocket_manager import ws_manager
 from py.utils.exif_utils import ExifUtils
+from py.utils.metadata_manager import MetadataManager
 
 
 class DummyRoutes(BaseModelRoutes):
@@ -197,6 +199,116 @@ def test_replace_preview_writes_file_and_updates_cache(
     asyncio.run(scenario())
 
 
+def test_fetch_civitai_hydrates_metadata_before_sync(
+    mock_service,
+    mock_scanner,
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+):
+    model_path = tmp_path / "hydrate.safetensors"
+    model_path.write_bytes(b"model")
+    metadata_path = tmp_path / "hydrate.metadata.json"
+
+    existing_metadata = {
+        "file_path": str(model_path),
+        "sha256": "abc123",
+        "model_name": "Hydrated",
+        "preview_url": "keep/me.png",
+        "civitai": {
+            "id": 99,
+            "modelId": 42,
+            "images": [{"url": "https://example.com/existing.png", "type": "image"}],
+            "customImages": [{"id": "old-id", "url": "", "type": "image"}],
+            "trainedWords": ["keep"],
+        },
+        "custom_field": "preserve",
+    }
+    metadata_path.write_text(json.dumps(existing_metadata), encoding="utf-8")
+
+    minimal_cache_entry = {
+        "file_path": str(model_path),
+        "sha256": "abc123",
+        "folder": "some/folder",
+        "civitai": {"id": 99, "modelId": 42},
+    }
+    mock_scanner._cache.raw_data = [minimal_cache_entry]
+
+    class FakeMetadata:
+        def __init__(self, payload: dict) -> None:
+            self._payload = payload
+            self._unknown_fields = {"legacy_field": "legacy"}
+
+        def to_dict(self) -> dict:
+            return self._payload.copy()
+
+    async def fake_load_metadata(path: str, *_args, **_kwargs):
+        assert path == str(model_path)
+        return FakeMetadata(existing_metadata), False
+
+    async def fake_save_metadata(path: str, metadata: dict) -> bool:
+        save_calls.append((path, json.loads(json.dumps(metadata))))
+        return True
+
+    async def fake_fetch_and_update_model(
+        self,
+        *,
+        sha256: str,
+        file_path: str,
+        model_data: dict,
+        update_cache_func,
+    ):
+        captured["model_data"] = json.loads(json.dumps(model_data))
+        to_save = model_data.copy()
+        to_save.pop("folder", None)
+        await MetadataManager.save_metadata(
+            os.path.splitext(file_path)[0] + ".metadata.json",
+            to_save,
+        )
+        await update_cache_func(file_path, file_path, model_data)
+        return True, None
+
+    save_calls: list[tuple[str, dict]] = []
+    captured: dict[str, dict] = {}
+
+    monkeypatch.setattr(MetadataManager, "load_metadata", staticmethod(fake_load_metadata))
+    monkeypatch.setattr(MetadataManager, "save_metadata", staticmethod(fake_save_metadata))
+    monkeypatch.setattr(MetadataSyncService, "fetch_and_update_model", fake_fetch_and_update_model)
+
+    async def scenario():
+        client = await create_test_client(mock_service)
+        try:
+            response = await client.post(
+                "/api/lm/test-models/fetch-civitai",
+                json={"file_path": str(model_path)},
+            )
+            payload = await response.json()
+
+            assert response.status == 200
+            assert payload["success"] is True
+            assert captured["model_data"]["custom_field"] == "preserve"
+            assert captured["model_data"]["civitai"]["images"][0]["url"] == "https://example.com/existing.png"
+            assert captured["model_data"]["civitai"]["trainedWords"] == ["keep"]
+            assert captured["model_data"]["civitai"]["id"] == 99
+        finally:
+            await client.close()
+
+    asyncio.run(scenario())
+
+    assert save_calls, "Metadata save should be invoked"
+    saved_path, saved_payload = save_calls[0]
+    assert saved_path == str(metadata_path)
+    assert saved_payload["custom_field"] == "preserve"
+    assert saved_payload["civitai"]["images"][0]["url"] == "https://example.com/existing.png"
+    assert saved_payload["civitai"]["trainedWords"] == ["keep"]
+    assert saved_payload["civitai"]["id"] == 99
+    assert saved_payload["legacy_field"] == "legacy"
+
+    assert mock_scanner.updated_models
+    updated_metadata = mock_scanner.updated_models[-1]["metadata"]
+    assert updated_metadata["custom_field"] == "preserve"
+    assert updated_metadata["civitai"]["customImages"][0]["id"] == "old-id"
+
+
 def test_download_model_invokes_download_manager(
     mock_service,
     download_manager_stub,

tests/routes/test_lora_routes.py

@@ -188,7 +188,7 @@ async def test_get_trigger_words_broadcasts(monkeypatch, routes):
 
     monkeypatch.setattr("py.routes.lora_routes.get_lora_info", lambda name: (f"path/{name}", [f"trigger-{name}"]))
 
-    request = DummyRequest(json_data={"lora_names": ["one"], "node_ids": ["node"]})
+    request = DummyRequest(json_data={"lora_names": ["one"], "node_ids": [{"node_id": "node", "graph_id": "graph-1"}]})
 
     response = await routes.get_trigger_words(request)
     payload = json.loads(response.text)
@@ -196,7 +196,7 @@ async def test_get_trigger_words_broadcasts(monkeypatch, routes):
     assert payload == {"success": True}
     send_mock.assert_called_once_with(
         "trigger_word_update",
-        {"id": "node", "message": "trigger-one"},
+        {"id": "node", "graph_id": "graph-1", "message": "trigger-one"},
     )
 
 

tests/routes/test_misc_routes.py

@@ -4,7 +4,14 @@ from types import SimpleNamespace
 import pytest
 from aiohttp import web
 
-from py.routes.handlers.misc_handlers import SettingsHandler, ServiceRegistryAdapter
+from py.routes.handlers.misc_handlers import (
+    LoraCodeHandler,
+    ModelLibraryHandler,
+    NodeRegistry,
+    NodeRegistryHandler,
+    ServiceRegistryAdapter,
+    SettingsHandler,
+)
 from py.routes.misc_route_registrar import MISC_ROUTE_DEFINITIONS, MiscRouteRegistrar
 from py.routes.misc_routes import MiscRoutes
 
@@ -126,6 +133,128 @@ class FakePromptServer:
     instance = Instance()
 
 
+@pytest.mark.asyncio
+async def test_register_nodes_requires_graph_id():
+    node_registry = NodeRegistry()
+    handler = NodeRegistryHandler(
+        node_registry=node_registry,
+        prompt_server=FakePromptServer,
+        standalone_mode=False,
+    )
+
+    request = FakeRequest(json_data={"nodes": [{"node_id": 1}]})
+    response = await handler.register_nodes(request)
+    payload = json.loads(response.text)
+
+    assert response.status == 400
+    assert payload["success"] is False
+    assert "graph_id" in payload["error"]
+
+
+@pytest.mark.asyncio
+async def test_register_nodes_stores_graph_identifier():
+    node_registry = NodeRegistry()
+    handler = NodeRegistryHandler(
+        node_registry=node_registry,
+        prompt_server=FakePromptServer,
+        standalone_mode=False,
+    )
+
+    request = FakeRequest(
+        json_data={
+            "nodes": [
+                {
+                    "node_id": 7,
+                    "graph_id": "graph-123",
+                    "graph_name": "Character Subgraph",
+                    "type": "Lora Loader (LoraManager)",
+                    "title": "Loader",
+                }
+            ]
+        }
+    )
+
+    response = await handler.register_nodes(request)
+    payload = json.loads(response.text)
+
+    assert payload["success"] is True
+
+    registry = await node_registry.get_registry()
+    assert registry["node_count"] == 1
+    stored_node = next(iter(registry["nodes"].values()))
+    assert stored_node["graph_id"] == "graph-123"
+    assert stored_node["unique_id"] == "graph-123:7"
+    assert stored_node["graph_name"] == "Character Subgraph"
+
+
+@pytest.mark.asyncio
+async def test_register_nodes_defaults_graph_name_to_none():
+    node_registry = NodeRegistry()
+    handler = NodeRegistryHandler(
+        node_registry=node_registry,
+        prompt_server=FakePromptServer,
+        standalone_mode=False,
+    )
+
+    request = FakeRequest(
+        json_data={
+            "nodes": [
+                {
+                    "node_id": 8,
+                    "graph_id": "root",
+                    "type": "Lora Loader (LoraManager)",
+                    "title": "Root Loader",
+                }
+            ]
+        }
+    )
+
+    response = await handler.register_nodes(request)
+    payload = json.loads(response.text)
+
+    assert payload["success"] is True
+
+    registry = await node_registry.get_registry()
+    stored_node = next(iter(registry["nodes"].values()))
+    assert stored_node["graph_name"] is None
+
+
+@pytest.mark.asyncio
+async def test_update_lora_code_includes_graph_identifier():
+    send_calls: list[tuple[str, dict]] = []
+
+    class RecordingPromptServer:
+        class Instance:
+            def send_sync(self, event, payload):
+                send_calls.append((event, payload))
+
+        instance = Instance()
+
+    handler = LoraCodeHandler(RecordingPromptServer)
+
+    request = FakeRequest(
+        json_data={
+            "node_ids": [{"node_id": 3, "graph_id": "graph-A"}],
+            "lora_code": "<lora>",
+            "mode": "replace",
+        }
+    )
+
+    response = await handler.update_lora_code(request)
+    payload = json.loads(response.text)
+
+    assert payload["success"] is True
+    assert payload["results"] == [
+        {"node_id": 3, "graph_id": "graph-A", "success": True}
+    ]
+    assert send_calls == [
+        (
+            "lora_code_update",
+            {"id": 3, "graph_id": "graph-A", "lora_code": "<lora>", "mode": "replace"},
+        )
+    ]
+
+
 class FakeScanner:
     async def check_model_version_exists(self, _version_id):
         return False
@@ -138,10 +267,34 @@ async def fake_scanner_factory():
     return FakeScanner()
 
 
+class FakeExistenceScanner:
+    def __init__(self, existing=None):
+        self._existing = set(existing or [])
+
+    async def check_model_version_exists(self, version_id):
+        return version_id in self._existing
+
+    async def get_model_versions_by_id(self, _model_id):
+        return []
+
+
 class FakeMetadataProvider:
     async def get_model_versions(self, _model_id):
         return {"modelVersions": [], "name": "", "type": "lora"}
 
+    async def get_user_models(self, _username):
+        return []
+
+
+class FakeUserModelsProvider(FakeMetadataProvider):
+    def __init__(self, models):
+        self.models = models
+        self.received_usernames: list[str] = []
+
+    async def get_user_models(self, username):
+        self.received_usernames.append(username)
+        return self.models
+
 
 async def fake_metadata_provider_factory():
     return FakeMetadataProvider()
@@ -211,6 +364,250 @@ async def test_misc_routes_bind_produces_expected_handlers():
     assert set(mapping.keys()) == expected_names
 
 
+@pytest.mark.asyncio
+async def test_get_civitai_user_models_marks_library_versions():
+    models = [
+        {
+            "id": 1,
+            "name": "Model A",
+            "type": "LORA",
+            "tags": ["style"],
+            "modelVersions": [
+                {
+                    "id": 100,
+                    "name": "v1",
+                    "baseModel": "Flux.1",
+                    "images": [{"url": "http://example.com/a1.jpg"}],
+                },
+                {
+                    "id": 101,
+                    "name": "v2",
+                    "baseModel": "Flux.1",
+                    "images": [{"url": "http://example.com/a2.jpg"}],
+                },
+            ],
+        },
+        {
+            "id": 2,
+            "name": "Embedding",
+            "type": "TextualInversion",
+            "tags": ["embedding"],
+            "modelVersions": [
+                {
+                    "id": 200,
+                    "name": "v1",
+                    "baseModel": None,
+                    "images": [{"url": "http://example.com/e1.jpg"}],
+                },
+                {
+                    "id": 202,
+                    "name": "v2",
+                    "baseModel": None,
+                },
+            ],
+        },
+        {
+            "id": 3,
+            "name": "Checkpoint",
+            "type": "Checkpoint",
+            "tags": ["checkpoint"],
+            "modelVersions": [
+                {
+                    "id": 300,
+                    "name": "v1",
+                    "baseModel": "SDXL",
+                    "images": [],
+                }
+            ],
+        },
+        {
+            "id": 4,
+            "name": "Unsupported",
+            "type": "Other",
+            "modelVersions": [
+                {
+                    "id": 400,
+                    "name": "v1",
+                }
+            ],
+        },
+    ]
+
+    provider = FakeUserModelsProvider(models)
+
+    async def provider_factory():
+        return provider
+
+    lora_scanner = FakeExistenceScanner({101})
+    checkpoint_scanner = FakeExistenceScanner()
+    embedding_scanner = FakeExistenceScanner({202})
+
+    async def lora_factory():
+        return lora_scanner
+
+    async def checkpoint_factory():
+        return checkpoint_scanner
+
+    async def embedding_factory():
+        return embedding_scanner
+
+    handler = ModelLibraryHandler(
+        ServiceRegistryAdapter(
+            get_lora_scanner=lora_factory,
+            get_checkpoint_scanner=checkpoint_factory,
+            get_embedding_scanner=embedding_factory,
+        ),
+        metadata_provider_factory=provider_factory,
+    )
+
+    response = await handler.get_civitai_user_models(FakeRequest(query={"username": "pixel"}))
+    payload = json.loads(response.text)
+
+    assert payload["success"] is True
+    assert payload["username"] == "pixel"
+    assert payload["versions"] == [
+        {
+            "modelId": 1,
+            "versionId": 100,
+            "modelName": "Model A",
+            "versionName": "v1",
+            "type": "LORA",
+            "tags": ["style"],
+            "baseModel": "Flux.1",
+            "thumbnailUrl": "http://example.com/a1.jpg",
+            "inLibrary": False,
+        },
+        {
+            "modelId": 1,
+            "versionId": 101,
+            "modelName": "Model A",
+            "versionName": "v2",
+            "type": "LORA",
+            "tags": ["style"],
+            "baseModel": "Flux.1",
+            "thumbnailUrl": "http://example.com/a2.jpg",
+            "inLibrary": True,
+        },
+        {
+            "modelId": 2,
+            "versionId": 200,
+            "modelName": "Embedding",
+            "versionName": "v1",
+            "type": "TextualInversion",
+            "tags": ["embedding"],
+            "baseModel": None,
+            "thumbnailUrl": "http://example.com/e1.jpg",
+            "inLibrary": False,
+        },
+        {
+            "modelId": 2,
+            "versionId": 202,
+            "modelName": "Embedding",
+            "versionName": "v2",
+            "type": "TextualInversion",
+            "tags": ["embedding"],
+            "baseModel": None,
+            "thumbnailUrl": None,
+            "inLibrary": True,
+        },
+        {
+            "modelId": 3,
+            "versionId": 300,
+            "modelName": "Checkpoint",
+            "versionName": "v1",
+            "type": "Checkpoint",
+            "tags": ["checkpoint"],
+            "baseModel": "SDXL",
+            "thumbnailUrl": None,
+            "inLibrary": False,
+        },
+    ]
+
+    assert provider.received_usernames == ["pixel"]
+
+
+@pytest.mark.asyncio
+async def test_get_civitai_user_models_rewrites_civitai_previews():
+    image_url = "https://image.civitai.com/container/example/original=true/sample.jpeg"
+    video_url = "https://image.civitai.com/container/example/original=true/sample.mp4"
+
+    models = [
+        {
+            "id": 1,
+            "name": "Model A",
+            "type": "LORA",
+            "tags": ["style"],
+            "modelVersions": [
+                {
+                    "id": 100,
+                    "name": "preview-image",
+                    "baseModel": "Flux.1",
+                    "images": [
+                        {"url": image_url, "type": "image"},
+                    ],
+                },
+                {
+                    "id": 101,
+                    "name": "preview-video",
+                    "baseModel": "Flux.1",
+                    "images": [
+                        {"url": video_url, "type": "video"},
+                    ],
+                },
+            ],
+        },
+    ]
+
+    provider = FakeUserModelsProvider(models)
+
+    async def provider_factory():
+        return provider
+
+    handler = ModelLibraryHandler(
+        ServiceRegistryAdapter(
+            get_lora_scanner=fake_scanner_factory,
+            get_checkpoint_scanner=fake_scanner_factory,
+            get_embedding_scanner=fake_scanner_factory,
+        ),
+        metadata_provider_factory=provider_factory,
+    )
+
+    response = await handler.get_civitai_user_models(FakeRequest(query={"username": "pixel"}))
+    payload = json.loads(response.text)
+
+    assert payload["success"] is True
+    previews_by_version = {item["versionId"]: item["thumbnailUrl"] for item in payload["versions"]}
+    assert previews_by_version[100] == "https://image.civitai.com/container/example/width=450,optimized=true/sample.jpeg"
+    assert (
+        previews_by_version[101]
+        == "https://image.civitai.com/container/example/transcode=true,width=450,optimized=true/sample.mp4"
+    )
+
+
+@pytest.mark.asyncio
+async def test_get_civitai_user_models_requires_username():
+    provider = FakeUserModelsProvider([])
+
+    async def provider_factory():
+        return provider
+
+    handler = ModelLibraryHandler(
+        ServiceRegistryAdapter(
+            get_lora_scanner=fake_scanner_factory,
+            get_checkpoint_scanner=fake_scanner_factory,
+            get_embedding_scanner=fake_scanner_factory,
+        ),
+        metadata_provider_factory=provider_factory,
+    )
+
+    response = await handler.get_civitai_user_models(FakeRequest())
+    payload = json.loads(response.text)
+
+    assert response.status == 400
+    assert payload["success"] is False
+    assert "username" in payload["error"].lower()
+
+
 def test_ensure_handler_mapping_caches_result():
     call_records = []
 

tests/services/test_civitai_client.py

@@ -1,3 +1,4 @@
+import copy
 from unittest.mock import AsyncMock
 
 import pytest
@@ -169,6 +170,158 @@ async def test_get_model_version_by_version_id(monkeypatch, downloader):
     assert result["images"][0]["meta"]["other"] == "keep"
 
 
+async def test_get_model_version_with_model_id_prefers_version_endpoint(monkeypatch, downloader):
+    requests = []
+
+    model_payload = {
+        "modelVersions": [
+            {
+                "id": 7,
+                "files": [
+                    {
+                        "type": "Model",
+                        "primary": True,
+                        "hashes": {"SHA256": "hash7"},
+                    }
+                ],
+            }
+        ],
+        "description": "desc",
+        "tags": ["tag"],
+        "creator": {"username": "user"},
+        "name": "Model",
+        "type": "LORA",
+        "nsfw": False,
+        "poi": False,
+    }
+
+    version_payload = {
+        "id": 7,
+        "modelId": 99,
+        "model": {},
+        "files": [],
+        "images": [],
+    }
+
+    async def fake_make_request(method, url, use_auth=True):
+        requests.append(url)
+        if url.endswith("/models/99"):
+            return True, copy.deepcopy(model_payload)
+        if url.endswith("/model-versions/7"):
+            return True, copy.deepcopy(version_payload)
+        return False, "unexpected"
+
+    downloader.make_request = fake_make_request
+
+    client = await CivitaiClient.get_instance()
+
+    result = await client.get_model_version(model_id=99, version_id=7)
+
+    assert result["id"] == 7
+    assert result["model"]["description"] == "desc"
+    assert result["model"]["tags"] == ["tag"]
+    assert result["creator"] == {"username": "user"}
+    assert requests[0].endswith("/models/99")
+    assert requests[1].endswith("/model-versions/7")
+
+
+async def test_get_model_version_with_model_id_fallbacks_to_hash(monkeypatch, downloader):
+    requests = []
+
+    model_payload = {
+        "modelVersions": [
+            {
+                "id": 7,
+                "files": [
+                    {
+                        "type": "Model",
+                        "primary": True,
+                        "hashes": {"SHA256": "hash7"},
+                    }
+                ],
+            }
+        ],
+        "description": "desc",
+        "tags": ["tag"],
+        "creator": {"username": "user"},
+        "name": "Model",
+        "type": "LORA",
+        "nsfw": False,
+        "poi": False,
+    }
+
+    version_payload = {
+        "id": 7,
+        "modelId": 99,
+        "files": [],
+        "images": [],
+    }
+
+    async def fake_make_request(method, url, use_auth=True):
+        requests.append(url)
+        if url.endswith("/models/99"):
+            return True, copy.deepcopy(model_payload)
+        if url.endswith("/model-versions/7"):
+            return False, "boom"
+        if url.endswith("/model-versions/by-hash/hash7"):
+            return True, copy.deepcopy(version_payload)
+        return False, "unexpected"
+
+    downloader.make_request = fake_make_request
+
+    client = await CivitaiClient.get_instance()
+
+    result = await client.get_model_version(model_id=99, version_id=7)
+
+    assert result["id"] == 7
+    assert result["model"]["description"] == "desc"
+    assert result["model"]["tags"] == ["tag"]
+    assert result["creator"] == {"username": "user"}
+    assert requests[1].endswith("/model-versions/7")
+    assert requests[2].endswith("/model-versions/by-hash/hash7")
+
+
+async def test_get_model_version_with_model_id_builds_from_model_data(monkeypatch, downloader):
+    model_payload = {
+        "modelVersions": [
+            {
+                "id": 7,
+                "files": [],
+                "name": "v1",
+            }
+        ],
+        "description": "desc",
+        "tags": ["tag"],
+        "creator": {"username": "user"},
+        "name": "Model",
+        "type": "LORA",
+        "nsfw": False,
+        "poi": False,
+    }
+
+    async def fake_make_request(method, url, use_auth=True):
+        if url.endswith("/models/99"):
+            return True, copy.deepcopy(model_payload)
+        if url.endswith("/model-versions/7"):
+            return False, "boom"
+        if "/model-versions/by-hash/" in url:
+            return False, "boom"
+        return False, "unexpected"
+
+    downloader.make_request = fake_make_request
+
+    client = await CivitaiClient.get_instance()
+
+    result = await client.get_model_version(model_id=99, version_id=7)
+
+    assert result["modelId"] == 99
+    assert result["model"]["name"] == "Model"
+    assert result["model"]["type"] == "LORA"
+    assert result["model"]["description"] == "desc"
+    assert result["model"]["tags"] == ["tag"]
+    assert result["creator"] == {"username": "user"}
+
+
 async def test_get_model_version_requires_identifier(monkeypatch, downloader):
     client = await CivitaiClient.get_instance()
     result = await client.get_model_version()

tests/services/test_download_manager.py

@@ -8,7 +8,7 @@ import pytest
 from py.services.download_manager import DownloadManager
 from py.services import download_manager
 from py.services.service_registry import ServiceRegistry
-from py.services.settings_manager import settings
+from py.services.settings_manager import SettingsManager, get_settings_manager
 from py.utils.metadata_manager import MetadataManager
 
 
@@ -23,7 +23,8 @@ def reset_download_manager():
 @pytest.fixture(autouse=True)
 def isolate_settings(monkeypatch, tmp_path):
     """Point settings writes at a temporary directory to avoid touching real files."""
-    default_settings = settings._get_default_settings()
+    manager = get_settings_manager()
+    default_settings = manager._get_default_settings()
     default_settings.update(
         {
             "default_lora_root": str(tmp_path),
@@ -37,8 +38,8 @@ def isolate_settings(monkeypatch, tmp_path):
             "base_model_path_mappings": {"BaseModel": "MappedModel"},
         }
     )
-    monkeypatch.setattr(settings, "settings", default_settings)
-    monkeypatch.setattr(type(settings), "_save_settings", lambda self: None)
+    monkeypatch.setattr(manager, "settings", default_settings)
+    monkeypatch.setattr(SettingsManager, "_save_settings", lambda self: None)
 
 
 @pytest.fixture(autouse=True)
@@ -187,7 +188,7 @@ async def test_successful_download_uses_defaults(monkeypatch, scanners, metadata
     assert manager._active_downloads[result["download_id"]]["status"] == "completed"
 
     assert captured["relative_path"] == "MappedModel/fantasy"
-    expected_dir = Path(settings.get("default_lora_root")) / "MappedModel" / "fantasy"
+    expected_dir = Path(get_settings_manager().get("default_lora_root")) / "MappedModel" / "fantasy"
     assert captured["save_dir"] == expected_dir
     assert captured["model_type"] == "lora"
     assert captured["download_urls"] == [
@@ -393,3 +394,98 @@ async def test_execute_download_retries_urls(monkeypatch, tmp_path):
     assert result == {"success": True}
     assert [url for url, *_ in dummy_downloader.calls] == download_urls
     assert dummy_scanner.calls  # ensure cache updated
+
+
+@pytest.mark.asyncio
+async def test_execute_download_uses_rewritten_civitai_preview(monkeypatch, tmp_path):
+    manager = DownloadManager()
+    save_dir = tmp_path / "downloads"
+    save_dir.mkdir()
+    target_path = save_dir / "file.safetensors"
+
+    manager._active_downloads["dl"] = {}
+
+    class DummyMetadata:
+        def __init__(self, path: Path):
+            self.file_path = str(path)
+            self.sha256 = "sha256"
+            self.file_name = path.stem
+            self.preview_url = None
+            self.preview_nsfw_level = None
+
+        def generate_unique_filename(self, *_args, **_kwargs):
+            return os.path.basename(self.file_path)
+
+        def update_file_info(self, _path):
+            return None
+
+        def to_dict(self):
+            return {"file_path": self.file_path}
+
+    metadata = DummyMetadata(target_path)
+    version_info = {
+        "images": [
+            {
+                "url": "https://image.civitai.com/container/example/original=true/sample.jpeg",
+                "type": "image",
+                "nsfwLevel": 2,
+            }
+        ]
+    }
+    download_urls = ["https://example.invalid/file.safetensors"]
+
+    class DummyDownloader:
+        def __init__(self):
+            self.file_calls: list[tuple[str, str]] = []
+            self.memory_calls = 0
+
+        async def download_file(self, url, path, progress_callback=None, use_auth=None):
+            self.file_calls.append((url, path))
+            if url.endswith(".jpeg"):
+                Path(path).write_bytes(b"preview")
+                return True, None
+            if url.endswith(".safetensors"):
+                Path(path).write_bytes(b"model")
+                return True, None
+            return False, "unexpected url"
+
+        async def download_to_memory(self, *_args, **_kwargs):
+            self.memory_calls += 1
+            return False, b"", {}
+
+    dummy_downloader = DummyDownloader()
+    monkeypatch.setattr(download_manager, "get_downloader", AsyncMock(return_value=dummy_downloader))
+
+    optimize_called = {"value": False}
+
+    def fake_optimize_image(**_kwargs):
+        optimize_called["value"] = True
+        return b"", {}
+
+    monkeypatch.setattr(download_manager.ExifUtils, "optimize_image", staticmethod(fake_optimize_image))
+    monkeypatch.setattr(MetadataManager, "save_metadata", AsyncMock(return_value=True))
+
+    dummy_scanner = SimpleNamespace(add_model_to_cache=AsyncMock(return_value=None))
+    monkeypatch.setattr(DownloadManager, "_get_lora_scanner", AsyncMock(return_value=dummy_scanner))
+
+    result = await manager._execute_download(
+        download_urls=download_urls,
+        save_dir=str(save_dir),
+        metadata=metadata,
+        version_info=version_info,
+        relative_path="",
+        progress_callback=None,
+        model_type="lora",
+        download_id="dl",
+    )
+
+    assert result == {"success": True}
+    preview_urls = [url for url, _ in dummy_downloader.file_calls if url.endswith(".jpeg")]
+    assert any("width=450,optimized=true" in url for url in preview_urls)
+    assert dummy_downloader.memory_calls == 0
+    assert optimize_called["value"] is False
+    assert metadata.preview_url.endswith(".jpeg")
+    assert metadata.preview_nsfw_level == 2
+    stored_preview = manager._active_downloads["dl"]["preview_path"]
+    assert stored_preview.endswith(".jpeg")
+    assert Path(stored_preview).exists()

tests/services/test_example_images_cleanup_service.py

@@ -6,7 +6,7 @@ import pytest
 
 from py.services.example_images_cleanup_service import ExampleImagesCleanupService
 from py.services.service_registry import ServiceRegistry
-from py.services.settings_manager import settings
+from py.services.settings_manager import get_settings_manager
 
 
 class StubScanner:
@@ -21,8 +21,9 @@ class StubScanner:
 async def test_cleanup_moves_empty_and_orphaned(tmp_path, monkeypatch):
     service = ExampleImagesCleanupService()
 
-    previous_path = settings.get('example_images_path')
-    settings.settings['example_images_path'] = str(tmp_path)
+    settings_manager = get_settings_manager()
+    previous_path = settings_manager.get('example_images_path')
+    settings_manager.settings['example_images_path'] = str(tmp_path)
 
     try:
         empty_folder = tmp_path / 'empty_folder'
@@ -64,23 +65,24 @@ async def test_cleanup_moves_empty_and_orphaned(tmp_path, monkeypatch):
 
     finally:
         if previous_path is None:
-            settings.settings.pop('example_images_path', None)
+            settings_manager.settings.pop('example_images_path', None)
         else:
-            settings.settings['example_images_path'] = previous_path
+            settings_manager.settings['example_images_path'] = previous_path
 
 
 @pytest.mark.asyncio
 async def test_cleanup_handles_missing_path(monkeypatch):
     service = ExampleImagesCleanupService()
 
-    previous_path = settings.get('example_images_path')
-    settings.settings.pop('example_images_path', None)
+    settings_manager = get_settings_manager()
+    previous_path = settings_manager.get('example_images_path')
+    settings_manager.settings.pop('example_images_path', None)
 
     try:
         result = await service.cleanup_example_image_folders()
     finally:
         if previous_path is not None:
-            settings.settings['example_images_path'] = previous_path
+            settings_manager.settings['example_images_path'] = previous_path
 
     assert result['success'] is False
     assert result['error_code'] == 'path_not_configured'

tests/services/test_example_images_download_manager_async.py

@@ -7,7 +7,7 @@ from types import SimpleNamespace
 
 import pytest
 
-from py.services.settings_manager import settings
+from py.services.settings_manager import SettingsManager, get_settings_manager
 from py.utils import example_images_download_manager as download_module
 
 
@@ -43,11 +43,15 @@ def _patch_scanner(monkeypatch: pytest.MonkeyPatch, scanner: StubScanner) -> Non
 
 
 @pytest.mark.usefixtures("tmp_path")
-async def test_start_download_rejects_parallel_runs(monkeypatch: pytest.MonkeyPatch, tmp_path):
+async def test_start_download_rejects_parallel_runs(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path,
+    settings_manager,
+):
     ws_manager = RecordingWebSocketManager()
     manager = download_module.DownloadManager(ws_manager=ws_manager)
 
-    monkeypatch.setitem(settings.settings, "example_images_path", str(tmp_path))
+    monkeypatch.setitem(settings_manager.settings, "example_images_path", str(tmp_path))
 
     model = {
         "sha256": "abc123",
@@ -106,11 +110,15 @@ async def test_start_download_rejects_parallel_runs(monkeypatch: pytest.MonkeyPa
 
 
 @pytest.mark.usefixtures("tmp_path")
-async def test_pause_resume_blocks_processing(monkeypatch: pytest.MonkeyPatch, tmp_path):
+async def test_pause_resume_blocks_processing(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path,
+    settings_manager,
+):
     ws_manager = RecordingWebSocketManager()
     manager = download_module.DownloadManager(ws_manager=ws_manager)
 
-    monkeypatch.setitem(settings.settings, "example_images_path", str(tmp_path))
+    monkeypatch.setitem(settings_manager.settings, "example_images_path", str(tmp_path))
 
     models = [
         {
@@ -231,13 +239,17 @@ async def test_pause_resume_blocks_processing(monkeypatch: pytest.MonkeyPatch, t
 
 
 @pytest.mark.usefixtures("tmp_path")
-async def test_legacy_folder_migrated_and_skipped(monkeypatch: pytest.MonkeyPatch, tmp_path):
+async def test_legacy_folder_migrated_and_skipped(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path,
+    settings_manager,
+):
     ws_manager = RecordingWebSocketManager()
     manager = download_module.DownloadManager(ws_manager=ws_manager)
 
-    monkeypatch.setitem(settings.settings, "example_images_path", str(tmp_path))
-    monkeypatch.setitem(settings.settings, "libraries", {"default": {}, "extra": {}})
-    monkeypatch.setitem(settings.settings, "active_library", "extra")
+    monkeypatch.setitem(settings_manager.settings, "example_images_path", str(tmp_path))
+    monkeypatch.setitem(settings_manager.settings, "libraries", {"default": {}, "extra": {}})
+    monkeypatch.setitem(settings_manager.settings, "active_library", "extra")
 
     model_hash = "d" * 64
     model_path = tmp_path / "model.safetensors"
@@ -310,13 +322,17 @@ async def test_legacy_folder_migrated_and_skipped(monkeypatch: pytest.MonkeyPatc
 
 
 @pytest.mark.usefixtures("tmp_path")
-async def test_legacy_progress_file_migrates(monkeypatch: pytest.MonkeyPatch, tmp_path):
+async def test_legacy_progress_file_migrates(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path,
+    settings_manager,
+):
     ws_manager = RecordingWebSocketManager()
     manager = download_module.DownloadManager(ws_manager=ws_manager)
 
-    monkeypatch.setitem(settings.settings, "example_images_path", str(tmp_path))
-    monkeypatch.setitem(settings.settings, "libraries", {"default": {}, "extra": {}})
-    monkeypatch.setitem(settings.settings, "active_library", "extra")
+    monkeypatch.setitem(settings_manager.settings, "example_images_path", str(tmp_path))
+    monkeypatch.setitem(settings_manager.settings, "libraries", {"default": {}, "extra": {}})
+    monkeypatch.setitem(settings_manager.settings, "active_library", "extra")
 
     model_hash = "e" * 64
     model_path = tmp_path / "model-two.safetensors"
@@ -380,20 +396,24 @@ async def test_legacy_progress_file_migrates(monkeypatch: pytest.MonkeyPatch, tm
 
 
 @pytest.mark.usefixtures("tmp_path")
-async def test_download_remains_in_initial_library(monkeypatch: pytest.MonkeyPatch, tmp_path):
+async def test_download_remains_in_initial_library(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path,
+    settings_manager,
+):
     ws_manager = RecordingWebSocketManager()
     manager = download_module.DownloadManager(ws_manager=ws_manager)
 
-    monkeypatch.setitem(settings.settings, "example_images_path", str(tmp_path))
-    monkeypatch.setitem(settings.settings, "libraries", {"LibraryA": {}, "LibraryB": {}})
-    monkeypatch.setitem(settings.settings, "active_library", "LibraryA")
+    monkeypatch.setitem(settings_manager.settings, "example_images_path", str(tmp_path))
+    monkeypatch.setitem(settings_manager.settings, "libraries", {"LibraryA": {}, "LibraryB": {}})
+    monkeypatch.setitem(settings_manager.settings, "active_library", "LibraryA")
 
     state = {"active": "LibraryA"}
 
     def fake_get_active_library_name(self):
         return state["active"]
 
-    monkeypatch.setattr(type(settings), "get_active_library_name", fake_get_active_library_name)
+    monkeypatch.setattr(SettingsManager, "get_active_library_name", fake_get_active_library_name)
 
     model_hash = "f" * 64
     model_path = tmp_path / "example-model.safetensors"
@@ -454,3 +474,7 @@ async def test_download_remains_in_initial_library(monkeypatch: pytest.MonkeyPat
     assert (model_dir / "local.txt").exists()
     assert not (library_b_root / ".download_progress.json").exists()
     assert not (library_b_root / model_hash).exists()
+
+@pytest.fixture
+def settings_manager():
+    return get_settings_manager()

tests/services/test_model_scanner.py

@@ -243,6 +243,7 @@ async def test_initialize_in_background_uses_persisted_cache_without_full_scan(t
     cache = await scanner.get_cached_data()
     assert len(cache.raw_data) == 1
     assert cache.raw_data[0]['file_path'] == normalized
+    assert cache.version_index[11]['file_path'] == normalized
 
     assert scanner._hash_index.get_path('hash-one') == normalized
 
@@ -301,6 +302,7 @@ async def test_load_persisted_cache_populates_cache(tmp_path: Path, monkeypatch)
     assert entry['file_path'] == normalized
     assert entry['tags'] == ['alpha']
     assert entry['civitai']['trainedWords'] == ['abc']
+    assert cache.version_index[11]['file_path'] == normalized
     assert scanner._hash_index.get_path('hash-one') == normalized
     assert scanner._tags_count == {'alpha': 1}
     assert ws_stub.payloads[-1]['stage'] == 'loading_cache'
@@ -381,6 +383,66 @@ async def test_batch_delete_persists_removal(tmp_path: Path, monkeypatch):
     assert remaining == 0
 
 
+@pytest.mark.asyncio
+async def test_version_index_tracks_version_ids(tmp_path: Path):
+    scanner = DummyScanner(tmp_path)
+
+    first_path = _normalize_path(tmp_path / 'alpha.txt')
+    second_path = _normalize_path(tmp_path / 'beta.txt')
+
+    first_entry = {
+        'file_path': first_path,
+        'file_name': 'alpha',
+        'model_name': 'alpha',
+        'folder': '',
+        'size': 1,
+        'modified': 1.0,
+        'sha256': 'hash-alpha',
+        'tags': [],
+        'civitai': {'id': 101, 'modelId': 1, 'name': 'alpha'},
+    }
+
+    second_entry = {
+        'file_path': second_path,
+        'file_name': 'beta',
+        'model_name': 'beta',
+        'folder': '',
+        'size': 1,
+        'modified': 1.0,
+        'sha256': 'hash-beta',
+        'tags': [],
+        'civitai': {'id': 202, 'modelId': 2, 'name': 'beta'},
+    }
+
+    hash_index = ModelHashIndex()
+    hash_index.add_entry('hash-alpha', first_path)
+    hash_index.add_entry('hash-beta', second_path)
+
+    scan_result = CacheBuildResult(
+        raw_data=[first_entry, second_entry],
+        hash_index=hash_index,
+        tags_count={},
+        excluded_models=[],
+    )
+
+    await scanner._apply_scan_result(scan_result)
+
+    cache = await scanner.get_cached_data()
+    assert cache.version_index[101]['file_path'] == first_path
+    assert cache.version_index[202]['file_path'] == second_path
+
+    assert await scanner.check_model_version_exists(101) is True
+    assert await scanner.check_model_version_exists('202') is True
+    assert await scanner.check_model_version_exists(999) is False
+
+    removed = await scanner._batch_update_cache_for_deleted_models([first_path])
+    assert removed is True
+
+    cache_after = await scanner.get_cached_data()
+    assert 101 not in cache_after.version_index
+    assert await scanner.check_model_version_exists(101) is False
+
+
 @pytest.mark.asyncio
 async def test_reconcile_cache_adds_new_files_and_updates_hash_index(tmp_path: Path):
     first, _, _ = _create_files(tmp_path)

tests/services/test_preview_asset_service.py

@@ -0,0 +1,182 @@
+from pathlib import Path
+from typing import Any
+
+import pytest
+
+from py.services.preview_asset_service import PreviewAssetService
+
+
+class StubMetadataManager:
+    async def save_metadata(self, *_args: Any, **_kwargs: Any) -> bool:  # pragma: no cover - helper
+        return True
+
+
+class RecordingExifUtils:
+    def __init__(self) -> None:
+        self.called = False
+
+    def optimize_image(self, **kwargs):
+        self.called = True
+        return kwargs["image_data"], {}
+
+
+@pytest.mark.asyncio
+async def test_ensure_preview_prefers_rewritten_civitai_image(tmp_path):
+    metadata_path = tmp_path / "model.metadata.json"
+    metadata_path.write_text("{}")
+    local_metadata: dict[str, Any] = {}
+
+    class Downloader:
+        def __init__(self):
+            self.file_calls: list[tuple[str, str]] = []
+            self.memory_calls = 0
+
+        async def download_file(self, url, path, use_auth=False):
+            self.file_calls.append((url, path))
+            if "width=450,optimized=true" in url:
+                Path(path).write_bytes(b"image-data")
+                return True, None
+            return False, "fail"
+
+        async def download_to_memory(self, *_args, **_kwargs):
+            self.memory_calls += 1
+            return False, b"", {}
+
+    downloader = Downloader()
+
+    async def downloader_factory():
+        return downloader
+
+    exif_utils = RecordingExifUtils()
+    service = PreviewAssetService(
+        metadata_manager=StubMetadataManager(),
+        downloader_factory=downloader_factory,
+        exif_utils=exif_utils,
+    )
+
+    images = [
+        {
+            "url": "https://image.civitai.com/container/example/original=true/sample.jpeg",
+            "type": "image",
+            "nsfwLevel": 3,
+        }
+    ]
+
+    await service.ensure_preview_for_metadata(str(metadata_path), local_metadata, images)
+
+    assert downloader.memory_calls == 0
+    assert exif_utils.called is False
+    assert len(downloader.file_calls) == 1
+    assert "width=450,optimized=true" in downloader.file_calls[0][0]
+    preview_path = Path(local_metadata["preview_url"])
+    assert preview_path.exists()
+    assert preview_path.suffix == ".jpeg"
+    assert local_metadata["preview_nsfw_level"] == 3
+
+
+@pytest.mark.asyncio
+async def test_ensure_preview_falls_back_to_webp_when_rewrite_fails(tmp_path):
+    metadata_path = tmp_path / "model.metadata.json"
+    metadata_path.write_text("{}")
+    local_metadata: dict[str, Any] = {}
+
+    class Downloader:
+        def __init__(self):
+            self.file_calls: list[tuple[str, str]] = []
+            self.memory_calls = 0
+
+        async def download_file(self, url, path, use_auth=False):
+            self.file_calls.append((url, path))
+            return False, "fail"
+
+        async def download_to_memory(self, *_args, **_kwargs):
+            self.memory_calls += 1
+            return True, b"raw-image", {}
+
+    downloader = Downloader()
+
+    async def downloader_factory():
+        return downloader
+
+    class ExifUtils:
+        def __init__(self):
+            self.calls = 0
+
+        def optimize_image(self, **kwargs):
+            self.calls += 1
+            return b"webp-data", {}
+
+    exif_utils = ExifUtils()
+
+    service = PreviewAssetService(
+        metadata_manager=StubMetadataManager(),
+        downloader_factory=downloader_factory,
+        exif_utils=exif_utils,
+    )
+
+    images = [
+        {
+            "url": "https://image.civitai.com/container/example/original=true/sample.png",
+            "type": "image",
+            "nsfwLevel": 1,
+        }
+    ]
+
+    await service.ensure_preview_for_metadata(str(metadata_path), local_metadata, images)
+
+    assert downloader.memory_calls == 1
+    assert exif_utils.calls == 1
+    preview_path = Path(local_metadata["preview_url"])
+    assert preview_path.exists()
+    assert preview_path.suffix == ".webp"
+
+
+@pytest.mark.asyncio
+async def test_ensure_preview_rewrites_civitai_video(tmp_path):
+    metadata_path = tmp_path / "model.metadata.json"
+    metadata_path.write_text("{}")
+    local_metadata: dict[str, Any] = {}
+
+    class Downloader:
+        def __init__(self):
+            self.file_calls: list[tuple[str, str]] = []
+
+        async def download_file(self, url, path, use_auth=False):
+            self.file_calls.append((url, path))
+            if "transcode=true,width=450,optimized=true" in url:
+                Path(path).write_bytes(b"video-data")
+                return True, None
+            if url.endswith(".mp4"):
+                return False, "fail"
+            return False, "unexpected"
+
+        async def download_to_memory(self, *_args, **_kwargs):
+            pytest.fail("download_to_memory should not be used for video previews")
+
+    downloader = Downloader()
+
+    async def downloader_factory():
+        return downloader
+
+    service = PreviewAssetService(
+        metadata_manager=StubMetadataManager(),
+        downloader_factory=downloader_factory,
+        exif_utils=RecordingExifUtils(),
+    )
+
+    images = [
+        {
+            "url": "https://image.civitai.com/container/example/original=true/sample.mp4",
+            "type": "video",
+            "nsfwLevel": 2,
+        }
+    ]
+
+    await service.ensure_preview_for_metadata(str(metadata_path), local_metadata, images)
+
+    assert len(downloader.file_calls) >= 1
+    assert any("transcode=true,width=450,optimized=true" in url for url, _ in downloader.file_calls)
+    preview_path = Path(local_metadata["preview_url"])
+    assert preview_path.exists()
+    assert preview_path.suffix == ".mp4"
+    assert local_metadata["preview_nsfw_level"] == 2

tests/services/test_use_cases.py

@@ -28,6 +28,7 @@ from py.utils.example_images_processor import (
     ExampleImagesImportError,
     ExampleImagesValidationError,
 )
+from py.utils.metadata_manager import MetadataManager
 from tests.conftest import MockModelService, MockScanner
 
 
@@ -155,7 +156,9 @@ async def test_auto_organize_use_case_rejects_when_running() -> None:
         await use_case.execute(file_paths=None, progress_callback=None)
 
 
-async def test_bulk_metadata_refresh_emits_progress_and_updates_cache() -> None:
+async def test_bulk_metadata_refresh_emits_progress_and_updates_cache(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
     scanner = MockScanner()
     scanner._cache.raw_data = [
         {
@@ -170,6 +173,25 @@ async def test_bulk_metadata_refresh_emits_progress_and_updates_cache() -> None:
     settings = StubSettings()
     progress = ProgressCollector()
 
+    hydration_calls: list[str] = []
+
+    async def fake_hydrate(model_data: Dict[str, Any]) -> Dict[str, Any]:
+        hydration_calls.append(model_data.get("file_path", ""))
+        model_data.clear()
+        model_data.update(
+            {
+                "file_path": "model1.safetensors",
+                "sha256": "hash",
+                "from_civitai": True,
+                "model_name": "Demo",
+                "extra": "value",
+                "civitai": {"images": [{"url": "existing.png", "type": "image"}]},
+            }
+        )
+        return model_data
+
+    monkeypatch.setattr(MetadataManager, "hydrate_model_data", staticmethod(fake_hydrate))
+
     use_case = BulkMetadataRefreshUseCase(
         service=service,
         metadata_sync=metadata_sync,
@@ -183,6 +205,9 @@ async def test_bulk_metadata_refresh_emits_progress_and_updates_cache() -> None:
     assert progress.events[0]["status"] == "started"
     assert progress.events[-1]["status"] == "completed"
     assert metadata_sync.calls
+    assert metadata_sync.calls[0]["model_data"]["extra"] == "value"
+    assert scanner._cache.raw_data[0]["extra"] == "value"
+    assert hydration_calls == ["model1.safetensors"]
     assert scanner._cache.resort_calls == 1
 
 
@@ -314,4 +339,4 @@ async def test_import_example_images_use_case_propagates_generic_error() -> None
     request = DummyJsonRequest({"model_hash": "abc", "file_paths": ["/tmp/file"]})
 
     with pytest.raises(ExampleImagesImportError):
-        await use_case.execute(request)
+        await use_case.execute(request)

tests/utils/test_example_images_download_manager_unit.py

@@ -5,7 +5,7 @@ from typing import Any, Dict
 
 import pytest
 
-from py.services.settings_manager import settings
+from py.services.settings_manager import get_settings_manager
 from py.utils import example_images_download_manager as download_module
 
 
@@ -19,19 +19,21 @@ class RecordingWebSocketManager:
 
 @pytest.fixture(autouse=True)
 def restore_settings() -> None:
-    original = settings.settings.copy()
+    manager = get_settings_manager()
+    original = manager.settings.copy()
     try:
         yield
     finally:
-        settings.settings.clear()
-        settings.settings.update(original)
+        manager.settings.clear()
+        manager.settings.update(original)
 
 
 async def test_start_download_requires_configured_path(monkeypatch: pytest.MonkeyPatch) -> None:
     manager = download_module.DownloadManager(ws_manager=RecordingWebSocketManager())
 
     # Ensure example_images_path is not configured
-    settings.settings.pop('example_images_path', None)
+    settings_manager = get_settings_manager()
+    settings_manager.settings.pop('example_images_path', None)
 
     with pytest.raises(download_module.DownloadConfigurationError) as exc_info:
         await manager.start_download({})
@@ -44,9 +46,10 @@ async def test_start_download_requires_configured_path(monkeypatch: pytest.Monke
 
 
 async def test_start_download_bootstraps_progress_and_task(monkeypatch: pytest.MonkeyPatch, tmp_path) -> None:
-    settings.settings["example_images_path"] = str(tmp_path)
-    settings.settings["libraries"] = {"default": {}}
-    settings.settings["active_library"] = "default"
+    settings_manager = get_settings_manager()
+    settings_manager.settings["example_images_path"] = str(tmp_path)
+    settings_manager.settings["libraries"] = {"default": {}}
+    settings_manager.settings["active_library"] = "default"
 
     ws_manager = RecordingWebSocketManager()
     manager = download_module.DownloadManager(ws_manager=ws_manager)
@@ -84,9 +87,10 @@ async def test_start_download_bootstraps_progress_and_task(monkeypatch: pytest.M
 
 
 async def test_pause_and_resume_flow(monkeypatch: pytest.MonkeyPatch, tmp_path) -> None:
-    settings.settings["example_images_path"] = str(tmp_path)
-    settings.settings["libraries"] = {"default": {}}
-    settings.settings["active_library"] = "default"
+    settings_manager = get_settings_manager()
+    settings_manager.settings["example_images_path"] = str(tmp_path)
+    settings_manager.settings["libraries"] = {"default": {}}
+    settings_manager.settings["active_library"] = "default"
 
     ws_manager = RecordingWebSocketManager()
     manager = download_module.DownloadManager(ws_manager=ws_manager)

tests/utils/test_example_images_file_manager.py

@@ -7,7 +7,7 @@ from typing import Any, Dict
 
 import pytest
 
-from py.services.settings_manager import settings
+from py.services.settings_manager import get_settings_manager
 from py.utils.example_images_file_manager import ExampleImagesFileManager
 
 
@@ -22,16 +22,18 @@ class JsonRequest:
 
 @pytest.fixture(autouse=True)
 def restore_settings() -> None:
-    original = settings.settings.copy()
+    manager = get_settings_manager()
+    original = manager.settings.copy()
     try:
         yield
     finally:
-        settings.settings.clear()
-        settings.settings.update(original)
+        manager.settings.clear()
+        manager.settings.update(original)
 
 
 async def test_open_folder_requires_existing_model_directory(monkeypatch: pytest.MonkeyPatch, tmp_path) -> None:
-    settings.settings["example_images_path"] = str(tmp_path)
+    settings_manager = get_settings_manager()
+    settings_manager.settings["example_images_path"] = str(tmp_path)
     model_hash = "a" * 64
     model_folder = tmp_path / model_hash
     model_folder.mkdir()
@@ -65,7 +67,8 @@ async def test_open_folder_requires_existing_model_directory(monkeypatch: pytest
 
 
 async def test_open_folder_rejects_invalid_paths(monkeypatch: pytest.MonkeyPatch, tmp_path) -> None:
-    settings.settings["example_images_path"] = str(tmp_path)
+    settings_manager = get_settings_manager()
+    settings_manager.settings["example_images_path"] = str(tmp_path)
 
     def fake_get_model_folder(_hash):
         return str(tmp_path.parent / "outside")
@@ -81,7 +84,8 @@ async def test_open_folder_rejects_invalid_paths(monkeypatch: pytest.MonkeyPatch
 
 
 async def test_get_files_lists_supported_media(tmp_path) -> None:
-    settings.settings["example_images_path"] = str(tmp_path)
+    settings_manager = get_settings_manager()
+    settings_manager.settings["example_images_path"] = str(tmp_path)
     model_hash = "b" * 64
     model_folder = tmp_path / model_hash
     model_folder.mkdir()
@@ -99,7 +103,8 @@ async def test_get_files_lists_supported_media(tmp_path) -> None:
 
 
 async def test_has_images_reports_presence(tmp_path) -> None:
-    settings.settings["example_images_path"] = str(tmp_path)
+    settings_manager = get_settings_manager()
+    settings_manager.settings["example_images_path"] = str(tmp_path)
     model_hash = "c" * 64
     model_folder = tmp_path / model_hash
     model_folder.mkdir()

tests/utils/test_example_images_metadata.py

@@ -1,6 +1,8 @@
 from __future__ import annotations
 
 import json
+import os
+from pathlib import Path
 from types import SimpleNamespace
 from typing import Any, Dict, List, Tuple
 
@@ -30,7 +32,23 @@ def patch_metadata_manager(monkeypatch: pytest.MonkeyPatch):
         saved.append((path, metadata.copy()))
         return True
 
+    class SimpleMetadata:
+        def __init__(self, payload: Dict[str, Any]) -> None:
+            self._payload = payload
+            self._unknown_fields: Dict[str, Any] = {}
+
+        def to_dict(self) -> Dict[str, Any]:
+            return self._payload.copy()
+
+    async def fake_load(path: str, *_args: Any, **_kwargs: Any):
+        metadata_path = path if path.endswith(".metadata.json") else f"{os.path.splitext(path)[0]}.metadata.json"
+        if os.path.exists(metadata_path):
+            data = json.loads(Path(metadata_path).read_text(encoding="utf-8"))
+            return SimpleMetadata(data), False
+        return None, False
+
     monkeypatch.setattr(metadata_module.MetadataManager, "save_metadata", staticmethod(fake_save))
+    monkeypatch.setattr(metadata_module.MetadataManager, "load_metadata", staticmethod(fake_load))
     return saved
 
 
@@ -64,10 +82,80 @@ async def test_update_metadata_after_import_enriches_entries(monkeypatch: pytest
     assert custom[0]["hasMeta"] is True
     assert custom[0]["type"] == "image"
 
-    assert patch_metadata_manager[0][0] == str(model_file)
+    assert Path(patch_metadata_manager[0][0]) == model_file
     assert scanner.updates
 
 
+@pytest.mark.asyncio
+async def test_update_metadata_after_import_preserves_existing_metadata(
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path,
+    patch_metadata_manager,
+):
+    model_hash = "b" * 64
+    model_file = tmp_path / "preserve.safetensors"
+    model_file.write_text("content", encoding="utf-8")
+    metadata_path = tmp_path / "preserve.metadata.json"
+
+    existing_payload = {
+        "model_name": "Example",
+        "file_path": str(model_file),
+        "civitai": {
+            "id": 42,
+            "modelId": 88,
+            "name": "Example",
+            "trainedWords": ["foo"],
+            "images": [{"url": "https://example.com/default.png", "type": "image"}],
+            "customImages": [
+                {"id": "existing-id", "type": "image", "url": "", "nsfwLevel": 0}
+            ],
+        },
+        "extraField": "keep-me",
+    }
+    metadata_path.write_text(json.dumps(existing_payload), encoding="utf-8")
+
+    model_data = {
+        "sha256": model_hash,
+        "model_name": "Example",
+        "file_path": str(model_file),
+        "civitai": {
+            "id": 42,
+            "modelId": 88,
+            "name": "Example",
+            "trainedWords": ["foo"],
+            "customImages": [],
+        },
+    }
+    scanner = StubScanner([model_data])
+
+    image_path = tmp_path / "new.png"
+    image_path.write_bytes(b"fakepng")
+
+    monkeypatch.setattr(metadata_module.ExifUtils, "extract_image_metadata", staticmethod(lambda _path: None))
+    monkeypatch.setattr(metadata_module.MetadataUpdater, "_parse_image_metadata", staticmethod(lambda payload: None))
+
+    regular, custom = await metadata_module.MetadataUpdater.update_metadata_after_import(
+        model_hash,
+        model_data,
+        scanner,
+        [(str(image_path), "new-id")],
+    )
+
+    assert regular == existing_payload["civitai"]["images"]
+    assert any(entry["id"] == "new-id" for entry in custom)
+
+    saved_path, saved_payload = patch_metadata_manager[-1]
+    assert Path(saved_path) == model_file
+    assert saved_payload["extraField"] == "keep-me"
+    assert saved_payload["civitai"]["images"] == existing_payload["civitai"]["images"]
+    assert saved_payload["civitai"]["trainedWords"] == ["foo"]
+    assert {entry["id"] for entry in saved_payload["civitai"]["customImages"]} == {"existing-id", "new-id"}
+
+    assert scanner.updates
+    updated_metadata = scanner.updates[-1][2]
+    assert updated_metadata["civitai"]["images"] == existing_payload["civitai"]["images"]
+    assert {entry["id"] for entry in updated_metadata["civitai"]["customImages"]} == {"existing-id", "new-id"}
+
 async def test_refresh_model_metadata_records_failures(monkeypatch: pytest.MonkeyPatch, tmp_path):
     model_hash = "b" * 64
     model_file = tmp_path / "model.safetensors"
@@ -79,6 +167,16 @@ async def test_refresh_model_metadata_records_failures(monkeypatch: pytest.Monke
         async def fetch_and_update_model(self, **_kwargs):
             return True, None
 
+    async def fake_hydrate(model_data: Dict[str, Any]) -> Dict[str, Any]:
+        model_data["hydrated"] = True
+        return model_data
+
+    monkeypatch.setattr(
+        metadata_module.MetadataManager,
+        "hydrate_model_data",
+        staticmethod(fake_hydrate),
+    )
+
     monkeypatch.setattr(metadata_module, "_metadata_sync_service", StubMetadataSync())
 
     result = await metadata_module.MetadataUpdater.refresh_model_metadata(
@@ -89,6 +187,7 @@ async def test_refresh_model_metadata_records_failures(monkeypatch: pytest.Monke
         {"refreshed_models": set(), "errors": [], "last_error": None},
     )
     assert result is True
+    assert cache_item["hydrated"] is True
 
 
 async def test_update_metadata_from_local_examples_generates_entries(monkeypatch: pytest.MonkeyPatch, tmp_path):
@@ -112,4 +211,4 @@ async def test_update_metadata_from_local_examples_generates_entries(monkeypatch
         str(model_dir),
     )
     assert success is True
-    assert model_data["civitai"]["images"]
+    assert model_data["civitai"]["images"]

tests/utils/test_example_images_paths.py

@@ -6,7 +6,7 @@ from pathlib import Path
 
 import pytest
 
-from py.services.settings_manager import settings
+from py.services.settings_manager import get_settings_manager
 from py.utils.example_images_paths import (
     ensure_library_root_exists,
     get_model_folder,
@@ -18,18 +18,24 @@ from py.utils.example_images_paths import (
 
 @pytest.fixture(autouse=True)
 def restore_settings():
-    original = copy.deepcopy(settings.settings)
+    manager = get_settings_manager()
+    original = copy.deepcopy(manager.settings)
     try:
         yield
     finally:
-        settings.settings.clear()
-        settings.settings.update(original)
+        manager.settings.clear()
+        manager.settings.update(original)
 
 
-def test_get_model_folder_single_library(tmp_path):
-    settings.settings['example_images_path'] = str(tmp_path)
-    settings.settings['libraries'] = {'default': {}}
-    settings.settings['active_library'] = 'default'
+@pytest.fixture
+def settings_manager():
+    return get_settings_manager()
+
+
+def test_get_model_folder_single_library(tmp_path, settings_manager):
+    settings_manager.settings['example_images_path'] = str(tmp_path)
+    settings_manager.settings['libraries'] = {'default': {}}
+    settings_manager.settings['active_library'] = 'default'
 
     model_hash = 'a' * 64
     folder = get_model_folder(model_hash)
@@ -39,13 +45,13 @@ def test_get_model_folder_single_library(tmp_path):
     assert relative == model_hash
 
 
-def test_get_model_folder_multi_library(tmp_path):
-    settings.settings['example_images_path'] = str(tmp_path)
-    settings.settings['libraries'] = {
+def test_get_model_folder_multi_library(tmp_path, settings_manager):
+    settings_manager.settings['example_images_path'] = str(tmp_path)
+    settings_manager.settings['libraries'] = {
         'default': {},
         'Alt Library': {},
     }
-    settings.settings['active_library'] = 'Alt Library'
+    settings_manager.settings['active_library'] = 'Alt Library'
 
     model_hash = 'b' * 64
     expected_folder = tmp_path / 'Alt_Library' / model_hash
@@ -57,13 +63,13 @@ def test_get_model_folder_multi_library(tmp_path):
     assert relative == os.path.join('Alt_Library', model_hash).replace('\\', '/')
 
 
-def test_get_model_folder_migrates_legacy_structure(tmp_path):
-    settings.settings['example_images_path'] = str(tmp_path)
-    settings.settings['libraries'] = {
+def test_get_model_folder_migrates_legacy_structure(tmp_path, settings_manager):
+    settings_manager.settings['example_images_path'] = str(tmp_path)
+    settings_manager.settings['libraries'] = {
         'default': {},
         'extra': {},
     }
-    settings.settings['active_library'] = 'extra'
+    settings_manager.settings['active_library'] = 'extra'
 
     model_hash = 'c' * 64
     legacy_folder = tmp_path / model_hash
@@ -82,31 +88,31 @@ def test_get_model_folder_migrates_legacy_structure(tmp_path):
     assert (expected_folder / 'image.png').exists()
 
 
-def test_ensure_library_root_exists_creates_directories(tmp_path):
-    settings.settings['example_images_path'] = str(tmp_path)
-    settings.settings['libraries'] = {'default': {}, 'secondary': {}}
-    settings.settings['active_library'] = 'secondary'
+def test_ensure_library_root_exists_creates_directories(tmp_path, settings_manager):
+    settings_manager.settings['example_images_path'] = str(tmp_path)
+    settings_manager.settings['libraries'] = {'default': {}, 'secondary': {}}
+    settings_manager.settings['active_library'] = 'secondary'
 
     resolved = ensure_library_root_exists('secondary')
     assert Path(resolved) == tmp_path / 'secondary'
     assert (tmp_path / 'secondary').is_dir()
 
 
-def test_iter_library_roots_returns_all_configured(tmp_path):
-    settings.settings['example_images_path'] = str(tmp_path)
-    settings.settings['libraries'] = {'default': {}, 'alt': {}}
-    settings.settings['active_library'] = 'alt'
+def test_iter_library_roots_returns_all_configured(tmp_path, settings_manager):
+    settings_manager.settings['example_images_path'] = str(tmp_path)
+    settings_manager.settings['libraries'] = {'default': {}, 'alt': {}}
+    settings_manager.settings['active_library'] = 'alt'
 
     roots = dict(iter_library_roots())
     assert roots['default'] == str(tmp_path / 'default')
     assert roots['alt'] == str(tmp_path / 'alt')
 
 
-def test_is_valid_example_images_root_accepts_hash_directories(tmp_path):
-    settings.settings['example_images_path'] = str(tmp_path)
+def test_is_valid_example_images_root_accepts_hash_directories(tmp_path, settings_manager):
+    settings_manager.settings['example_images_path'] = str(tmp_path)
     # Ensure single-library mode (not multi-library mode)
-    settings.settings['libraries'] = {'default': {}}
-    settings.settings['active_library'] = 'default'
+    settings_manager.settings['libraries'] = {'default': {}}
+    settings_manager.settings['active_library'] = 'default'
     
     hash_folder = tmp_path / ('d' * 64)
     hash_folder.mkdir()

tests/utils/test_example_images_processor_unit.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import json
 import os
 from pathlib import Path
 from types import SimpleNamespace
@@ -7,18 +8,42 @@ from typing import Any, Dict, Tuple
 
 import pytest
 
-from py.services.settings_manager import settings
+from py.services.settings_manager import get_settings_manager
+from py.utils import example_images_metadata as metadata_module
 from py.utils import example_images_processor as processor_module
+from py.utils.example_images_paths import get_model_folder
 
 
 @pytest.fixture(autouse=True)
 def restore_settings() -> None:
-    original = settings.settings.copy()
+    manager = get_settings_manager()
+    original = manager.settings.copy()
     try:
         yield
     finally:
-        settings.settings.clear()
-        settings.settings.update(original)
+        manager.settings.clear()
+        manager.settings.update(original)
+
+
+@pytest.fixture(autouse=True)
+def patch_metadata_loader(monkeypatch: pytest.MonkeyPatch) -> None:
+    class SimpleMetadata:
+        def __init__(self, payload: Dict[str, Any]) -> None:
+            self._payload = payload
+            self._unknown_fields: Dict[str, Any] = {}
+
+        def to_dict(self) -> Dict[str, Any]:
+            return self._payload.copy()
+
+    async def fake_load(path: str, *_args: Any, **_kwargs: Any):
+        metadata_path = path if path.endswith(".metadata.json") else f"{os.path.splitext(path)[0]}.metadata.json"
+        if os.path.exists(metadata_path):
+            data = json.loads(Path(metadata_path).read_text(encoding="utf-8"))
+            return SimpleMetadata(data), False
+        return None, False
+
+    monkeypatch.setattr(processor_module.MetadataManager, "load_metadata", staticmethod(fake_load))
+    monkeypatch.setattr(metadata_module.MetadataManager, "load_metadata", staticmethod(fake_load))
 
 
 def test_get_file_extension_from_magic_bytes() -> None:
@@ -90,9 +115,10 @@ def stub_scanners(monkeypatch: pytest.MonkeyPatch, tmp_path) -> StubScanner:
 
 
 async def test_import_images_creates_hash_directory(monkeypatch: pytest.MonkeyPatch, tmp_path, stub_scanners: StubScanner) -> None:
-    settings.settings["example_images_path"] = str(tmp_path / "examples")
-    settings.settings["libraries"] = {"default": {}}
-    settings.settings["active_library"] = "default"
+    settings_manager = get_settings_manager()
+    settings_manager.settings["example_images_path"] = str(tmp_path / "examples")
+    settings_manager.settings["libraries"] = {"default": {}}
+    settings_manager.settings["active_library"] = "default"
 
     source_file = tmp_path / "upload.png"
     source_file.write_bytes(b"PNG data")
@@ -112,7 +138,7 @@ async def test_import_images_creates_hash_directory(monkeypatch: pytest.MonkeyPa
     assert result["success"] is True
     assert result["files"][0]["name"].startswith("custom_short")
 
-    model_folder = Path(settings.settings["example_images_path"]) / ("a" * 64)
+    model_folder = Path(settings_manager.settings["example_images_path"]) / ("a" * 64)
     assert model_folder.exists()
     created_files = list(model_folder.glob("custom_short*.png"))
     assert len(created_files) == 1
@@ -132,7 +158,8 @@ async def test_import_images_rejects_missing_parameters(monkeypatch: pytest.Monk
 
 
 async def test_import_images_raises_when_model_not_found(monkeypatch: pytest.MonkeyPatch, tmp_path) -> None:
-    settings.settings["example_images_path"] = str(tmp_path)
+    settings_manager = get_settings_manager()
+    settings_manager.settings["example_images_path"] = str(tmp_path)
 
     async def _empty_scanner(cls=None):
         return StubScanner([])
@@ -143,3 +170,88 @@ async def test_import_images_raises_when_model_not_found(monkeypatch: pytest.Mon
 
     with pytest.raises(processor_module.ExampleImagesImportError):
         await processor_module.ExampleImagesProcessor.import_images("a" * 64, [str(tmp_path / "missing.png")])
+
+
+@pytest.mark.asyncio
+async def test_delete_custom_image_preserves_existing_metadata(monkeypatch: pytest.MonkeyPatch, tmp_path) -> None:
+    settings_manager = get_settings_manager()
+    settings_manager.settings["example_images_path"] = str(tmp_path / "examples")
+
+    model_hash = "c" * 64
+    model_file = tmp_path / "keep.safetensors"
+    model_file.write_text("content", encoding="utf-8")
+    metadata_path = tmp_path / "keep.metadata.json"
+
+    existing_metadata = {
+        "model_name": "Keep",
+        "file_path": str(model_file),
+        "civitai": {
+            "images": [{"url": "https://example.com/default.png", "type": "image"}],
+            "customImages": [{"id": "existing-id", "url": "", "type": "image"}],
+            "trainedWords": ["foo"],
+        },
+    }
+    metadata_path.write_text(json.dumps(existing_metadata), encoding="utf-8")
+
+    model_data = {
+        "sha256": model_hash,
+        "model_name": "Keep",
+        "file_path": str(model_file),
+        "civitai": {
+            "customImages": [{"id": "existing-id", "url": "", "type": "image"}],
+            "trainedWords": ["foo"],
+        },
+    }
+
+    class Scanner(StubScanner):
+        def has_hash(self, hash_value: str) -> bool:
+            return hash_value == model_hash
+
+    scanner = Scanner([model_data])
+
+    async def _return_scanner(cls=None):
+        return scanner
+
+    monkeypatch.setattr(processor_module.ServiceRegistry, "get_lora_scanner", classmethod(_return_scanner))
+    monkeypatch.setattr(processor_module.ServiceRegistry, "get_checkpoint_scanner", classmethod(_return_scanner))
+    monkeypatch.setattr(processor_module.ServiceRegistry, "get_embedding_scanner", classmethod(_return_scanner))
+
+    model_folder = get_model_folder(model_hash)
+    os.makedirs(model_folder, exist_ok=True)
+    (Path(model_folder) / "custom_existing-id.png").write_bytes(b"data")
+
+    saved: list[tuple[str, Dict[str, Any]]] = []
+
+    async def fake_save(path: str, payload: Dict[str, Any]) -> bool:
+        saved.append((path, payload.copy()))
+        return True
+
+    monkeypatch.setattr(processor_module.MetadataManager, "save_metadata", staticmethod(fake_save))
+
+    class StubRequest:
+        def __init__(self, payload: Dict[str, Any]) -> None:
+            self._payload = payload
+
+        async def json(self) -> Dict[str, Any]:
+            return self._payload
+
+    response = await processor_module.ExampleImagesProcessor.delete_custom_image(
+        StubRequest({"model_hash": model_hash, "short_id": "existing-id"})
+    )
+
+    assert response.status == 200
+    body = json.loads(response.text)
+    assert body["success"] is True
+    assert body["custom_images"] == []
+    assert not (Path(model_folder) / "custom_existing-id.png").exists()
+
+    saved_path, saved_payload = saved[-1]
+    assert saved_path == str(model_file)
+    assert saved_payload["civitai"]["images"] == existing_metadata["civitai"]["images"]
+    assert saved_payload["civitai"]["trainedWords"] == ["foo"]
+    assert saved_payload["civitai"]["customImages"] == []
+
+    assert scanner.updated
+    _, _, updated_metadata = scanner.updated[-1]
+    assert updated_metadata["civitai"]["images"] == existing_metadata["civitai"]["images"]
+    assert updated_metadata["civitai"]["customImages"] == []

tests/utils/test_utils.py

@@ -1,6 +1,6 @@
 import pytest
 
-from py.services.settings_manager import settings
+from py.services.settings_manager import SettingsManager, get_settings_manager
 from py.utils.utils import (
     calculate_recipe_fingerprint,
     calculate_relative_path_for_model,
@@ -9,7 +9,8 @@ from py.utils.utils import (
 
 @pytest.fixture
 def isolated_settings(monkeypatch):
-    default_settings = settings._get_default_settings()
+    manager = get_settings_manager()
+    default_settings = manager._get_default_settings()
     default_settings.update(
         {
             "download_path_templates": {
@@ -20,8 +21,8 @@ def isolated_settings(monkeypatch):
             "base_model_path_mappings": {},
         }
     )
-    monkeypatch.setattr(settings, "settings", default_settings)
-    monkeypatch.setattr(type(settings), "_save_settings", lambda self: None)
+    monkeypatch.setattr(manager, "settings", default_settings)
+    monkeypatch.setattr(SettingsManager, "_save_settings", lambda self: None)
     return default_settings
 
 

web/comfyui/debug_metadata.js

@@ -1,6 +1,7 @@
 import { app } from "../../scripts/app.js";
 import { api } from "../../scripts/api.js";
 import { addJsonDisplayWidget } from "./json_display_widget.js";
+import { getNodeFromGraph } from "./utils.js";
 
 app.registerExtension({
     name: "LoraManager.DebugMetadata",
@@ -8,8 +9,8 @@ app.registerExtension({
     setup() {
         // Add message handler to listen for metadata updates from Python
         api.addEventListener("metadata_update", (event) => {
-            const { id, metadata } = event.detail;
-            this.handleMetadataUpdate(id, metadata);
+            const { id, graph_id: graphId, metadata } = event.detail;
+            this.handleMetadataUpdate(id, graphId, metadata);
         });
     },
 
@@ -37,8 +38,8 @@ app.registerExtension({
     },
     
     // Handle metadata updates from Python
-    handleMetadataUpdate(id, metadata) {
-        const node = app.graph.getNodeById(+id);
+    handleMetadataUpdate(id, graphId, metadata) {
+        const node = getNodeFromGraph(graphId, id);
         if (!node || node.comfyClass !== "Debug Metadata (LoraManager)") {
             console.warn("Node not found or not a DebugMetadata node:", id);
             return;

web/comfyui/lora_loader.js

@@ -7,6 +7,8 @@ import {
   chainCallback,
   mergeLoras,
   setupInputWidgetWithAutocomplete,
+  getAllGraphNodes,
+  getNodeFromGraph,
 } from "./utils.js";
 import { addLorasWidget } from "./loras_widget.js";
 
@@ -16,23 +18,26 @@ app.registerExtension({
   setup() {
     // Add message handler to listen for messages from Python
     api.addEventListener("lora_code_update", (event) => {
-      const { id, lora_code, mode } = event.detail;
-      this.handleLoraCodeUpdate(id, lora_code, mode);
+      this.handleLoraCodeUpdate(event.detail || {});
     });
   },
 
   // Handle lora code updates from Python
-  handleLoraCodeUpdate(id, loraCode, mode) {
+  handleLoraCodeUpdate(message) {
+    const nodeId = message?.node_id ?? message?.id;
+    const graphId = message?.graph_id;
+    const loraCode = message?.lora_code ?? "";
+    const mode = message?.mode ?? "append";
+
+    const numericNodeId =
+      typeof nodeId === "string" ? Number(nodeId) : nodeId;
+
     // Handle broadcast mode (for Desktop/non-browser support)
-    if (id === -1) {
+    if (numericNodeId === -1) {
       // Find all Lora Loader nodes in the current graph
-      const loraLoaderNodes = [];
-      for (const nodeId in app.graph._nodes_by_id) {
-        const node = app.graph._nodes_by_id[nodeId];
-        if (node.comfyClass === "Lora Loader (LoraManager)") {
-          loraLoaderNodes.push(node);
-        }
-      }
+      const loraLoaderNodes = getAllGraphNodes(app.graph)
+        .map(({ node }) => node)
+        .filter((node) => node?.comfyClass === "Lora Loader (LoraManager)");
 
       // Update each Lora Loader node found
       if (loraLoaderNodes.length > 0) {
@@ -52,14 +57,18 @@ app.registerExtension({
     }
 
     // Standard mode - update a specific node
-    const node = app.graph.getNodeById(+id);
+    const node = getNodeFromGraph(graphId, numericNodeId);
     if (
       !node ||
       (node.comfyClass !== "Lora Loader (LoraManager)" &&
         node.comfyClass !== "Lora Stacker (LoraManager)" &&
         node.comfyClass !== "WanVideo Lora Select (LoraManager)")
     ) {
-      console.warn("Node not found or not a LoraLoader:", id);
+      console.warn(
+        "Node not found or not a LoraLoader:",
+        graphId ?? "root",
+        nodeId
+      );
       return;
     }
 

web/comfyui/lora_stacker.js

@@ -7,6 +7,8 @@ import {
   chainCallback,
   mergeLoras,
   setupInputWidgetWithAutocomplete,
+  getLinkFromGraph,
+  getNodeKey,
 } from "./utils.js";
 import { addLorasWidget } from "./loras_widget.js";
 
@@ -124,17 +126,18 @@ app.registerExtension({
 
 // Helper function to find and update downstream Lora Loader nodes
 function updateDownstreamLoaders(startNode, visited = new Set()) {
-  if (visited.has(startNode.id)) return;
-  visited.add(startNode.id);
+  const nodeKey = getNodeKey(startNode);
+  if (!nodeKey || visited.has(nodeKey)) return;
+  visited.add(nodeKey);
 
   // Check each output link
   if (startNode.outputs) {
     for (const output of startNode.outputs) {
       if (output.links) {
         for (const linkId of output.links) {
-          const link = app.graph.links[linkId];
+          const link = getLinkFromGraph(startNode.graph, linkId);
           if (link) {
-            const targetNode = app.graph.getNodeById(link.target_id);
+            const targetNode = startNode.graph?.getNodeById?.(link.target_id);
 
             // If target is a Lora Loader, collect all active loras in the chain and update
             if (

web/comfyui/trigger_word_toggle.js

@@ -1,6 +1,6 @@
 import { app } from "../../scripts/app.js";
 import { api } from "../../scripts/api.js";
-import { CONVERTED_TYPE } from "./utils.js";
+import { CONVERTED_TYPE, getNodeFromGraph } from "./utils.js";
 import { addTagsWidget } from "./tags_widget.js";
 
 // TriggerWordToggle extension for ComfyUI
@@ -10,8 +10,8 @@ app.registerExtension({
     setup() {
         // Add message handler to listen for messages from Python
         api.addEventListener("trigger_word_update", (event) => {
-            const { id, message } = event.detail;
-            this.handleTriggerWordUpdate(id, message);
+            const { id, graph_id: graphId, message } = event.detail;
+            this.handleTriggerWordUpdate(id, graphId, message);
         });
     },
     
@@ -76,8 +76,8 @@ app.registerExtension({
     },
 
     // Handle trigger word updates from Python
-    handleTriggerWordUpdate(id, message) {
-        const node = app.graph.getNodeById(+id);
+    handleTriggerWordUpdate(id, graphId, message) {
+        const node = getNodeFromGraph(graphId, id);
         if (!node || node.comfyClass !== "TriggerWord Toggle (LoraManager)") {
             console.warn("Node not found or not a TriggerWordToggle:", id);
             return;

web/comfyui/usage_stats.js

@@ -1,7 +1,7 @@
 // ComfyUI extension to track model usage statistics
 import { app } from "../../scripts/app.js";
 import { api } from "../../scripts/api.js";
-import { showToast } from "./utils.js";
+import { getAllGraphNodes, getNodeReference, showToast } from "./utils.js";
 
 // Define target nodes and their widget configurations
 const PATH_CORRECTION_TARGETS = [
@@ -56,25 +56,35 @@ app.registerExtension({
 
     async refreshRegistry() {
         try {
-            // Get current workflow nodes
-            const prompt = await app.graphToPrompt();
-            const workflow = prompt.workflow;
-            if (!workflow || !workflow.nodes) {
-                console.warn("No workflow nodes found for registry refresh");
-                return;
-            }
-
-            // Find all Lora nodes
             const loraNodes = [];
-            for (const node of workflow.nodes.values()) {
-                if (node.type === "Lora Loader (LoraManager)" || 
-                    node.type === "Lora Stacker (LoraManager)" || 
-                    node.type === "WanVideo Lora Select (LoraManager)") {
+            const nodeEntries = getAllGraphNodes(app.graph);
+
+            for (const { graph, node } of nodeEntries) {
+                if (!node || !node.comfyClass) {
+                    continue;
+                }
+
+                if (
+                    node.comfyClass === "Lora Loader (LoraManager)" ||
+                    node.comfyClass === "Lora Stacker (LoraManager)" ||
+                    node.comfyClass === "WanVideo Lora Select (LoraManager)"
+                ) {
+                    const reference = getNodeReference(node);
+                    if (!reference) {
+                        continue;
+                    }
+
+                    const graphName = typeof graph?.name === "string" && graph.name.trim()
+                        ? graph.name
+                        : null;
+
                     loraNodes.push({
-                        node_id: node.id,
-                        bgcolor: node.bgcolor || null,
-                        title: node.title || node.type,
-                        type: node.type
+                        node_id: reference.node_id,
+                        graph_id: reference.graph_id,
+                        graph_name: graphName,
+                        bgcolor: node.bgcolor ?? node.color ?? null,
+                        title: node.title || node.comfyClass,
+                        type: node.comfyClass,
                     });
                 }
             }

web/comfyui/utils.js

@@ -2,6 +2,120 @@ export const CONVERTED_TYPE = 'converted-widget';
 import { app } from "../../scripts/app.js";
 import { AutoComplete } from "./autocomplete.js";
 
+const ROOT_GRAPH_ID = "root";
+
+function isMapLike(collection) {
+    return collection && typeof collection.entries === "function" && typeof collection.values === "function";
+}
+
+function getChildGraphs(graph) {
+    if (!graph || !graph._subgraphs) {
+        return [];
+    }
+
+    const rawSubgraphs = isMapLike(graph._subgraphs)
+        ? Array.from(graph._subgraphs.values())
+        : Object.values(graph._subgraphs);
+
+    return rawSubgraphs
+        .map((subgraph) => subgraph?.graph || subgraph?._graph || subgraph)
+        .filter((subgraph) => subgraph && subgraph !== graph);
+}
+
+function traverseGraphs(rootGraph, visitor, visited = new Set()) {
+    const graph = rootGraph || app.graph;
+    if (!graph) {
+        return;
+    }
+
+    const graphId = getGraphId(graph);
+    if (visited.has(graphId)) {
+        return;
+    }
+    visited.add(graphId);
+    visitor(graph);
+
+    for (const subgraph of getChildGraphs(graph)) {
+        traverseGraphs(subgraph, visitor, visited);
+    }
+}
+
+export function getGraphId(graph) {
+    return graph?.id ?? ROOT_GRAPH_ID;
+}
+
+export function getNodeGraphId(node) {
+    if (!node) {
+        return ROOT_GRAPH_ID;
+    }
+    return getGraphId(node.graph || app.graph);
+}
+
+export function getGraphById(graphId, rootGraph = app.graph) {
+    if (!graphId) {
+        return rootGraph;
+    }
+
+    let foundGraph = null;
+    traverseGraphs(rootGraph, (graph) => {
+        if (!foundGraph && getGraphId(graph) === graphId) {
+            foundGraph = graph;
+        }
+    });
+    return foundGraph;
+}
+
+export function getNodeFromGraph(graphId, nodeId) {
+    const graph = getGraphById(graphId) || app.graph;
+    if (!graph || typeof graph.getNodeById !== "function") {
+        return null;
+    }
+
+    const numericId = typeof nodeId === "string" ? Number(nodeId) : nodeId;
+    return graph.getNodeById(Number.isNaN(numericId) ? nodeId : numericId) || null;
+}
+
+export function getAllGraphNodes(rootGraph = app.graph) {
+    const nodes = [];
+    traverseGraphs(rootGraph, (graph) => {
+        if (Array.isArray(graph._nodes)) {
+            for (const node of graph._nodes) {
+                nodes.push({ graph, node });
+            }
+        }
+    });
+    return nodes;
+}
+
+export function getNodeReference(node) {
+    if (!node) {
+        return null;
+    }
+    return {
+        node_id: node.id,
+        graph_id: getNodeGraphId(node),
+    };
+}
+
+export function getNodeKey(node) {
+    if (!node) {
+        return null;
+    }
+    return `${getNodeGraphId(node)}:${node.id}`;
+}
+
+export function getLinkFromGraph(graph, linkId) {
+    if (!graph || graph.links == null) {
+        return null;
+    }
+
+    if (isMapLike(graph.links)) {
+        return graph.links.get(linkId) || null;
+    }
+
+    return graph.links[linkId] || null;
+}
+
 export function chainCallback(object, property, callback) {
   if (object == undefined) {
     //This should not happen.
@@ -103,42 +217,56 @@ export const LORA_PATTERN = /<lora:([^:]+):([-\d\.]+)(?::([-\d\.]+))?>/g;
 // Get connected Lora Stacker nodes that feed into the current node
 export function getConnectedInputStackers(node) {
     const connectedStackers = [];
-    
-    if (node.inputs) {
-        for (const input of node.inputs) {
-            if (input.name === "lora_stack" && input.link) {
-                const link = app.graph.links[input.link];
-                if (link) {
-                    const sourceNode = app.graph.getNodeById(link.origin_id);
-                    if (sourceNode && sourceNode.comfyClass === "Lora Stacker (LoraManager)") {
-                        connectedStackers.push(sourceNode);
-                    }
-                }
-            }
+
+    if (!node?.inputs) {
+        return connectedStackers;
+    }
+
+    for (const input of node.inputs) {
+        if (input.name !== "lora_stack" || !input.link) {
+            continue;
+        }
+
+        const link = getLinkFromGraph(node.graph, input.link);
+        if (!link) {
+            continue;
+        }
+
+        const sourceNode = node.graph?.getNodeById?.(link.origin_id);
+        if (sourceNode && sourceNode.comfyClass === "Lora Stacker (LoraManager)") {
+            connectedStackers.push(sourceNode);
         }
     }
+
     return connectedStackers;
 }
 
 // Get connected TriggerWord Toggle nodes that receive output from the current node
 export function getConnectedTriggerToggleNodes(node) {
     const connectedNodes = [];
-    
-    if (node.outputs && node.outputs.length > 0) {
-        for (const output of node.outputs) {
-            if (output.links && output.links.length > 0) {
-                for (const linkId of output.links) {
-                    const link = app.graph.links[linkId];
-                    if (link) {
-                        const targetNode = app.graph.getNodeById(link.target_id);
-                        if (targetNode && targetNode.comfyClass === "TriggerWord Toggle (LoraManager)") {
-                            connectedNodes.push(targetNode.id);
-                        }
-                    }
-                }
+
+    if (!node?.outputs) {
+        return connectedNodes;
+    }
+
+    for (const output of node.outputs) {
+        if (!output?.links?.length) {
+            continue;
+        }
+
+        for (const linkId of output.links) {
+            const link = getLinkFromGraph(node.graph, linkId);
+            if (!link) {
+                continue;
+            }
+
+            const targetNode = node.graph?.getNodeById?.(link.target_id);
+            if (targetNode && targetNode.comfyClass === "TriggerWord Toggle (LoraManager)") {
+                connectedNodes.push(targetNode);
             }
         }
     }
+
     return connectedNodes;
 }
 
@@ -161,11 +289,15 @@ export function getActiveLorasFromNode(node) {
 // Recursively collect all active loras from a node and its input chain
 export function collectActiveLorasFromChain(node, visited = new Set()) {
     // Prevent infinite loops from circular references
-    if (visited.has(node.id)) {
+    const nodeKey = getNodeKey(node);
+    if (!nodeKey) {
         return new Set();
     }
-    visited.add(node.id);
-    
+    if (visited.has(nodeKey)) {
+        return new Set();
+    }
+    visited.add(nodeKey);
+
     // Get active loras from current node
     const allActiveLoraNames = getActiveLorasFromNode(node);
     
@@ -181,14 +313,22 @@ export function collectActiveLorasFromChain(node, visited = new Set()) {
 
 // Update trigger words for connected toggle nodes
 export function updateConnectedTriggerWords(node, loraNames) {
-    const connectedNodeIds = getConnectedTriggerToggleNodes(node);
-    if (connectedNodeIds.length > 0) {
+    const connectedNodes = getConnectedTriggerToggleNodes(node);
+    if (connectedNodes.length > 0) {
+        const nodeIds = connectedNodes
+            .map((connectedNode) => getNodeReference(connectedNode))
+            .filter((reference) => reference !== null);
+
+        if (nodeIds.length === 0) {
+            return;
+        }
+
         fetch("/api/lm/loras/get_trigger_words", {
             method: "POST",
             headers: { "Content-Type": "application/json" },
             body: JSON.stringify({
                 lora_names: Array.from(loraNames),
-                node_ids: connectedNodeIds
+                node_ids: nodeIds
             })
         }).catch(err => console.error("Error fetching trigger words:", err));
     }