API_URL variable added (#41)

main.py

@@ -22,7 +22,7 @@
 
 # Try to get the system prompt from an environment variable
 try:
-    system_prompt = os.getenv('SYSTEM_PROMPT', 'You are a helpful assistant.')
+    SYSTEM_PROMPT = os.getenv('SYSTEM_PROMPT', 'You are a helpful assistant.')
 except Exception as e:
     print(f"Error getting system prompt: {str(e)}")
 
@@ -50,6 +50,10 @@
 except Exception as e:
     print(f"Error getting MAX_TOKENS_OUTPUT: {str(e)}")
 
+# Try to get the chat completions API endpoint from an environment variable
+# Example: https://example.com:8000/v1/chat/completions
+API_URL = os.getenv('API_URL') # Defaults to OpenAI API if not set
+
 # Define globals
 user_sessions = {}  # A dictionary to track the AIChat instances for each user
 turn_counts = {}  # A dictionary to track the turn count for each user
@@ -121,12 +125,12 @@ def handle_message(user_id, user_message):
         last_received_time = last_received_times.get(user_id)
 
         # Count the tokens in the user message
-        num_tokens = num_tokens_from_string(user_message + system_prompt)
+        num_tokens = num_tokens_from_string(user_message + SYSTEM_PROMPT)
 
         # If the user types '/reset', reset the session
         if user_message.strip().lower() == '/reset':
-            ai_chat = AIChat(api_key=openai_api_key, system=system_prompt, model=MODEL_NAME, params=params)
-            user_sessions[user_id] = ai_chat
+            if user_id in user_sessions:
+                del user_sessions[user_id]  # Delete the user's chat session if it exists
             turn_count = 0
             bot_message = "Your session has been reset. How can I assist you now?"
 
@@ -173,7 +177,10 @@ def handle_message(user_id, user_message):
         # If it's not a slash command, handle it normally
         else:
             if ai_chat is None or turn_count >= MAX_TURNS or (last_received_time is not None and (current_time - last_received_time).total_seconds() > TTL):
-                ai_chat = AIChat(api_key=openai_api_key, system=system_prompt, model=MODEL_NAME, params=params)
+                if API_URL:
+                    ai_chat = AIChat(api_key=None, api_url=API_URL, system=SYSTEM_PROMPT, params=params)
+                else:
+                    ai_chat = AIChat(api_key=openai_api_key, system=SYSTEM_PROMPT, model=MODEL_NAME, params=params)
                 user_sessions[user_id] = ai_chat
                 turn_count = 0