user_imahes_file_manager to singleton

backend/app/models/assistant/chat_assistant.py

@@ -3,7 +3,7 @@
 from mojodex_core.llm_engine.providers.openai_vision_llm import VisionMessagesData
 from abc import ABC, abstractmethod
 from mojodex_core.llm_engine.providers.model_loader import ModelLoader
-
+from mojodex_core.user_storage_manager.user_images_file_manager import UserImagesFileManager
 
 class ChatAssistant(ABC):
 
@@ -66,10 +66,8 @@ def _call_llm(self, conversation_list, user_id, session_id, user_task_execution_
     def __call_vision_llm(self, conversation_list, temperature, max_tokens, user_id, session_id,
                           user_task_execution_pk, task_name_for_system):
         try:
-            from mojodex_core.user_storage_manager.user_images_file_manager import UserImagesFileManager
-            user_image_file_manager = UserImagesFileManager()
             initial_system_message_data = [VisionMessagesData(role="system", text=self._mpt.prompt, images_path=[
-                user_image_file_manager.get_image_file_path(image, user_id, session_id)
+                UserImagesFileManager().get_image_file_path(image, user_id, session_id)
                 for image in self.input_images])]
             conversation_messages_data = [
                 VisionMessagesData(role=message["role"], text=message["content"], images_path=[]) for message in

backend/app/models/user_task_execution_inputs_manager.py

@@ -7,9 +7,6 @@ class UserTaskExecutionInputsManager:
     image_type = "image"
     multiple_images_type = "multiple_images"
 
-    def __init__(self):
-         self.user_image_file_manager = UserImagesFileManager()
-
     def construct_inputs_from_request(self, user_task_execution_json_input_values, inputs, files, user_id, session_id):
         try:
             # ensure inputs is a list of dicts and each dict has the required fields (input_name and input_value)
@@ -43,13 +40,13 @@ def construct_inputs_from_request(self, user_task_execution_json_input_values, i
                     if input["type"] == self.image_type:
                         if input["input_name"] == image_input:
                             filename = input["value"]
-                            self.user_image_file_manager.store_image_file(files[image_input], filename, user_id, session_id)
+                            UserImagesFileManager().store_image_file(files[image_input], filename, user_id, session_id)
                     if input["type"] == self.multiple_images_type:
                         image_name = "_".join(image_input.split("_")[:-1])
                         image_index = int(image_input.split("_")[-1])
                         if input["input_name"] == image_name:
                             filename = input["value"][image_index]
-                            self.user_image_file_manager.store_image_file(files[image_input], filename, user_id, session_id)
+                            UserImagesFileManager().store_image_file(files[image_input], filename, user_id, session_id)
 
             return user_task_execution_json_input_values
         except Exception as e:

backend/app/routes/image.py

@@ -11,7 +11,6 @@
 class Image(Resource):
     def __init__(self):
         Image.method_decorators = [authenticate()]
-        self.user_image_file_manager = UserImagesFileManager()
 
     def get(self, user_id):
 
@@ -25,7 +24,7 @@ def get(self, user_id):
 
         # Logic
         try:
-            images_storage = self.user_image_file_manager.get_images_storage_path(user_id, session_id)
+            images_storage = UserImagesFileManager().get_images_storage_path(user_id, session_id)
             filepath = os.path.join(images_storage, filename)
 
             if not os.path.isfile(filepath):

mojodex_core/user_storage_manager/user_images_file_manager.py

@@ -3,6 +3,16 @@
 
 
 class UserImagesFileManager(UserStorageManager):
+    _instance = None
+    _initialized = False
+
+    def __new__(cls, *args, **kwargs):
+        if not cls._instance:
+            cls._instance = super(UserImagesFileManager, cls).__new__(
+                cls, *args, **kwargs)
+            cls._instance._initialized = False
+        return cls._instance
+
 
     def get_images_storage_path(self, user_id, session_id):
         try: