main.py

import passwordgenerator
import sqlquery
import db_connect
import psycopg2
import argparse
import master_password
import getpass
import sys
import hashlib
import logging

logger = logging.getLogger(__name__)
logging.basicConfig(level=logging.INFO)

def authenticate_user():
    master_password_input = getpass.getpass("Master Password: ").encode()
    second_FA_location = "Dee Boo Dah".encode()
    master_password_hash = hashlib.sha256(master_password_input + second_FA_location).hexdigest()

    if master_password.query_master_pwd(master_password_input, second_FA_location):
        connection = db_connect.connection_db()
        logger.info("Authentication successful")
        return connection
    else:
        logger.error("Authentication failed")
        sys.exit(1)

def add_entry(cursor, master_password_hash, args):
    # ... (similar to original code, but with error handling and potential improvements)
    # Example:
    try:
        # ... database operations
    except psycopg2.Error as e:
        logger.error(f"Error adding entry: {e}")

def query_entry(cursor, master_password_hash, args):
    # ... (similar to original code, but with error handling and potential improvements)
    # Example:
    try:
        # ... database operations
    except psycopg2.Error as e:
        logger.error(f"Error querying entry: {e}")

# ... other functions for different operations

def main():
    parser = argparse.ArgumentParser(...)
    args = parser.parse_args()

    connection = authenticate_user()
    cursor = connection.cursor()

    try:
        if args.add:
            add_entry(cursor, master_password_hash, args)
        elif args.query:
            query_entry(cursor, master_password_hash, args)
        # ... other operations
    except Exception as e:
        logger.error(f"Unexpected error: {e}")
    finally:
        cursor.close()
        connection.close()

if __name__ == "__main__":
    main()