Mer struktur och först försök med centralt definierad loggning.

smartassist/config/smartassist.yaml

@@ -11,9 +11,10 @@ backend:
 ollama:
   url: "http://localhost:11434" 
   api_key: "${OLLAMA_API_KEY}" # Refer to environment variable
-  model: "phi3:mini" # Select a model supported by the Ollama server
+  # model: "phi3:mini" # Select a model supported by the Ollama server
   # model: "llama3:70b" # Select a model supported by the Ollama server
   # model: "llama3:latest" # Select a model supported by the Ollama server
+  model: "mannix/llama3-8b-ablitered-v3:latest" # Select a model supported by the Ollama server 
   
 # Logging – comment out the whole section for default level which is INFO
 logging:

smartassist/src/backend.py

@@ -5,7 +5,13 @@ from flask import Flask, request, jsonify
 from flask_cors import CORS, cross_origin # CORS stands for Cross-Origin Resource Sharing. This is necessary to allow the frontend to make requests to our backend.
 import requests
 import json
-#import threading
+import logging
+import utils
+from utils import set_local_logger, run_flask
+
+global log_level # Global variable to store the log level that is set in startservices.py
+logger = logging.getLogger(__name__) # Separate logger for this module
+set_local_logger(logger) # Set log level for logger based on log_level
 
 # Initialize a Flask application
 app = Flask(__name__)
@@ -19,12 +25,18 @@ CORS(app, resources={
 
 @app.route('/api/chat', methods=['POST'])
 def chat(url_server = "http://localhost:11434/api/generate", model = "phi3:mini"):
+    """
+    This function handles the chat. The frontend client (web browser) calls the 
+    backend server through this endpoint (/api/chat) that manage queries
+    to the LLM (Large Language Model) server and it also manages the response 
+    from the LLM server.
+    """
     # Get the message from the JSON in the request body
     data = request.get_json()
     message = data.get('query')
 
-    print(f"data = {data}\nmessage = {message}")
-
+    # print(f"data = {data}\nmessage = {message}")
+    logger.debug("data = %s\nmessage = %s", str(data), str(message))
     try:
          # Alternative LLM:          "model": "mannix/llama3-8b-ablitered-v3:latest",
         url = url_server
@@ -47,13 +59,12 @@ def chat(url_server = "http://localhost:11434/api/generate", model = "phi3:mini"
                                  headers=headers, 
                                  data=json.dumps(data))
         response.raise_for_status()  # Raise an exception for bad status codes
-        # print(json.dumps(response.json(), indent=4)) 
         return response.json()
     except requests.exceptions.RequestException as e:
-        print(f"Request Exception: {e}")
+        logger.error("Request Exception: %s", str(e))        
         return jsonify({'error': 'Failed to process request'}), 500
     except json.JSONDecodeError as e:
-        print(f"JSON Decode Error: {e}")
+        logger.error("JSON Decode Error: %s", str(e))   # Corresponds to print(f"JSON Decode Error: {e}")             
         return jsonify({'error': 'Invalid JSON response from server'}), 500
 
 
@@ -73,24 +84,25 @@ def smartassist():
 def get_response(user_query):
   # Create a client object for interacting with OLLAMA API
     client = Client()
-
     # Generate and retrieve the response based on user's query
     response = client.generate_response(user_query)
-
     # Return the generated response
     return response
 
-def run_flask(fport=5005):
-    # Flask endpoint for user interaction
-    print(f"Entering run_flask()")
-    # app.run(port = str(str(fport)), debug=False)
-    app.run(port = str(str(fport)), debug=True)
-    # app.run(port=5000, debug=True, use_reloader=False)
-    print(f"Exiting run_flask()")
+# def run_flask(fport=5005):
+#     """
+#     Starts the Flask server
+#     """
+#     # Flask endpoint for user interaction
+#     logger.debug("Entering run_flask()")
+#     # app.run(port = str(str(fport)), debug=False)
+#     app.run(port = str(str(fport)), debug=True)
+#     # app.run(port=5000, debug=True, use_reloader=False)
+#     logger.debug("Exiting run_flask()")
 
 
 if __name__ == '__main__':
     # Run the Flask application
-    run_flask()
+    run_flask(app)
 
 

smartassist/src/startservices.py

@@ -3,31 +3,36 @@ import subprocess
 import os
 import yaml
 import json
-from backend import run_flask
+# from backend import run_flask
 import socket
 import urllib.parse
 import logging
+import utils
+from utils import set_local_logger, run_flask
 
-global log_level
+# global log_level
 
-logger = logging.getLogger(__name__)
+# logger = logging.getLogger(__name__)
 
-def set_local_logger(log_instance):
-    """
-    Configure logging based on the global variable log_level
-    Logging is controlled by integer values, where DEBUG < INFO < WARNING < ERROR < CRITICAL.
-    To turn off logging completely, set numeric_log_level to at least CRITICAL + 1.
-    """
-    global log_level
-    numeric_log_level = getattr(logging, log_level, None)
-    if not isinstance(numeric_log_level, int):
-        raise ValueError('Invalid log level: %s' % log_level)
+# def set_local_logger(log_instance):
+#     """
+#     Configure logging based on the global variable log_level
+#     Logging is controlled by integer values, where DEBUG < INFO < WARNING < ERROR < CRITICAL.
+#     To turn off logging completely, set numeric_log_level to at least CRITICAL + 1.
+#     """
+#     global log_level
+#     numeric_log_level = getattr(logging, log_level, None)
+#     if not isinstance(numeric_log_level, int):
+#         raise ValueError('Invalid log level: %s' % log_level)
     
-    logging.basicConfig(level=numeric_log_level)  # Set the root logger level to the configured level
-    log_instance.info('Log level set to {}'.format(log_level))  # Example usage of the logger
+#     logging.basicConfig(level=numeric_log_level)  # Set the root logger level to the configured level
+#     log_instance.info('Log level set to {}'.format(log_level))  # Example usage of the logger
 
 def configure():
-    
+    """
+    Reads YAML configruation file into dictionary, parse it and fill all referenceed
+    environment variables with their values.
+    """
     ##################
     # Read YAML config
     ##################
@@ -56,14 +61,14 @@ def configure():
     # Extract global logging level
     ##################
     # The log_level variable will be used by the logger module to set the log level
-    global log_level
+    global log_level # REALLY NECESSARY TO DEFINE THIS GLOBAL AGAIN???
     log_level = 'INFO'  # Default value if not specified in the config file
     if isinstance(updated_config.get('logging'), dict): # Look for 'logging' key in config file
         logging_config = updated_config['logging'] 
         if isinstance(logging_config.get('level'), str): # Set to value of the yaml file if specified
             log_level = logging_config['level'] 
  
-    set_local_logger(logger) # Set log level for logger based on log_level
+    set_local_logger(utils.logger) # Set log level for logger based on log_level
 
     return updated_config
 
@@ -78,16 +83,16 @@ def start_frontend(config):
     with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
         try:
             s.bind((hostname, port))
-            logger.info("No server is running on %s -— starting one.", parsed_url.netloc)
+            utils.logger.info("No server is running on %s -— starting one.", parsed_url.netloc)
             # Start frontend (web server) as a separate process
             subprocess.Popen(["python", "-m", "http.server", str(port)])
         except socket.error as e:
             if e.errno == 48:
-                logger.error("A server is already running on %s -— will use this.", parsed_url.netloc)
+                utils.logger.error("A server is already running on %s -— will use this.", parsed_url.netloc)
             else:
                 raise  # Unexpected error, re-raise it so we can see the traceback
         except Exception as e:
-            logger.error("Failed to start frontend: %s", str(e)) # Corresponds to print(f"Failed to start frontend: {e}")
+            utils.logger.error("Failed to start frontend: %s", str(e)) # Corresponds to print(f"Failed to start frontend: {e}")
             
 
 
@@ -95,17 +100,17 @@ def start_backend(config):
     parsed_url = urllib.parse.urlparse(config['backend']['url'])
     # hostname = parsed_url.netloc.split(':')[0]  # Split by ':' and take the first part, i.e., 'localhost', IP, or domain name
     port = parsed_url.port  # This is the server port
-    logger.debug('Backend parsed url set to {}'.format(parsed_url))
-    logger.debug('Backend port set to {}'.format(port))
+    utils.logger.debug('Backend parsed url set to {}'.format(parsed_url))
+    utils.logger.debug('Backend port set to {}'.format(port))
 
     try:
         run_flask(fport = port)
     except Exception as e:
-        logger.error("Failed to start backend: %s", str(e)) # Corresponds to print(f"Failed to start backend: {e}")
+        utils.logger.error("Failed to start backend: %s", str(e)) # Corresponds to print(f"Failed to start backend: {e}")
 
 if __name__ == '__main__':
     conf = configure() # Read config from file and set up config dict
-    logger.debug('conf dictionary set to {}'.format(json.dumps(conf, indent=4)))
+    utils.logger.debug('conf dictionary set to {}'.format(json.dumps(conf, indent=4)))
     start_frontend(config=conf) 
     start_backend(config=conf)
 

smartassist/src/utils.py

@@ -0,0 +1,35 @@
+# This module contains definitions of variables, functions, classes, et cetera, that are
+# imported to more than one other module. The rational for defining these things here
+# is that it is easier to avoid circular imports when they are defined in a central location.
+import logging
+
+global log_level
+log_level = 'INFO'
+
+logger = logging.getLogger(__name__)
+
+def set_local_logger(log_instance):
+    """
+    Configure logging based on the global variable log_level
+    Logging is controlled by integer values, where DEBUG < INFO < WARNING < ERROR < CRITICAL.
+    To turn off logging completely, set numeric_log_level to at least CRITICAL + 1.
+    """
+    global log_level
+    numeric_log_level = getattr(logging, log_level, None)
+    if not isinstance(numeric_log_level, int):
+        raise ValueError('Invalid log level: %s' % log_level)
+    
+    logging.basicConfig(level=numeric_log_level)  # Set the root logger level to the configured level
+    log_instance.info('Log level set to {}'.format(log_level))  # Example usage of the logger
+
+
+def run_flask(app, fport=5005):
+    """
+    Starts the Flask server
+    """
+    # Flask endpoint for user interaction
+    logger.debug("Entering run_flask()")
+    # app.run(port = str(str(fport)), debug=False)
+    app.run(port = str(str(fport)), debug=True)
+    # app.run(port=5000, debug=True, use_reloader=False)
+    logger.debug("Exiting run_flask()")