feat: implement standalone mode support with mock modules and path handling

py/metadata_collector/__init__.py

@@ -1,18 +1,32 @@
 import os
 import importlib
-from .metadata_hook import MetadataHook
-from .metadata_registry import MetadataRegistry
+import sys
 
-def init():
-    # Install hooks to collect metadata during execution
-    MetadataHook.install()
-    
-    # Initialize registry
-    registry = MetadataRegistry()
-    
-    print("ComfyUI Metadata Collector initialized")
-    
-def get_metadata(prompt_id=None):
-    """Helper function to get metadata from the registry"""
-    registry = MetadataRegistry()
-    return registry.get_metadata(prompt_id)
+# Check if running in standalone mode
+standalone_mode = 'nodes' not in sys.modules
+
+if not standalone_mode:
+    from .metadata_hook import MetadataHook
+    from .metadata_registry import MetadataRegistry
+
+    def init():
+        # Install hooks to collect metadata during execution
+        MetadataHook.install()
+        
+        # Initialize registry
+        registry = MetadataRegistry()
+        
+        print("ComfyUI Metadata Collector initialized")
+        
+    def get_metadata(prompt_id=None):
+        """Helper function to get metadata from the registry"""
+        registry = MetadataRegistry()
+        return registry.get_metadata(prompt_id)
+else:
+    # Standalone mode - provide dummy implementations
+    def init():
+        print("ComfyUI Metadata Collector disabled in standalone mode")
+        
+    def get_metadata(prompt_id=None):
+        """Dummy implementation for standalone mode"""
+        return {}

py/metadata_collector/metadata_processor.py

@@ -1,4 +1,8 @@
 import json
+import sys
+
+# Check if running in standalone mode
+standalone_mode = 'nodes' not in sys.modules
 
 from .constants import MODELS, PROMPTS, SAMPLING, LORAS, SIZE
 
@@ -276,6 +280,10 @@ class MetadataProcessor:
     @staticmethod
     def to_dict(metadata):
         """Convert extracted metadata to the ComfyUI output.json format"""           
+        if standalone_mode:
+            # Return empty dictionary in standalone mode
+            return {}
+        
         params = MetadataProcessor.extract_generation_params(metadata)
         
         # Convert all values to strings to match output.json format