refactor oauth flow to simplify and leverage google built in resources

main.py

@@ -7,15 +7,54 @@ import sys
 import logging
 import asyncio
 from core.server import server
+import os # For path joining if needed, though not strictly for this change
 
 # Configure logging for main module
+# This basicConfig sets up console logging.
 logging.basicConfig(
-    level=logging.INFO,
+    level=logging.INFO, # Console logs at INFO level
     format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
 )
+# Get the logger for the main module
 logger = logging.getLogger(__name__)
 
+# === ADD FILE LOGGING SETUP ===
+try:
+    # Get the root logger to add a file handler
+    root_logger = logging.getLogger()
+    
+    # Define log file path (in the same directory as main.py)
+    # SCRIPT_DIR is usually where main.py is, from with_inspector.sh context
+    # Make log_file_path absolute to ensure it's always in the project directory
+    log_file_dir = os.path.dirname(os.path.abspath(__file__))
+    log_file_path = os.path.join(log_file_dir, 'mcp_server_debug.log')
+    
+    # Create a file handler
+    # mode='a' for append, so logs from multiple runs are kept
+    file_handler = logging.FileHandler(log_file_path, mode='a')
+    
+    # Set the logging level for the file handler (e.g., DEBUG for more verbosity in file)
+    file_handler.setLevel(logging.DEBUG)
+    
+    # Create a detailed formatter for the file logs
+    file_formatter = logging.Formatter(
+        '%(asctime)s - %(name)s - %(levelname)s - %(process)d - %(threadName)s [%(module)s.%(funcName)s:%(lineno)d] - %(message)s'
+    )
+    file_handler.setFormatter(file_formatter)
+    
+    # Add the file handler to the root logger
+    root_logger.addHandler(file_handler)
+    
+    # Log that file logging is active (this will go to both console and file)
+    logger.info(f"Detailed file logging configured to: {log_file_path}")
+    
+except Exception as e:
+    # Fallback if file logging setup fails, print to stderr so it's visible
+    sys.stderr.write(f"CRITICAL: Failed to set up file logging to '{log_file_path}': {e}\n")
+# === END FILE LOGGING SETUP ===
+
 # Explicitly import calendar tools to register them
+# This import should happen AFTER logging is fully configured if it also does logging.
 import gcalendar.calendar_tools
 
 def main():