import mysql.connector

def get_connection_details():
    details = {}
    with open('setting.txt', 'r') as f:
        for line in f:
            key, value = line.strip().split(':', 1)
            details[key.strip()] = value.strip()
    return details

def alter_table():
    try:
        config = get_connection_details()
        conn = mysql.connector.connect(
            host=config.get('Host'),
            port=config.get('Port'),
            user=config.get('Username'),
            password=config.get('Password'),
            database=config.get('Database')
        )
        cursor = conn.cursor()

        # Check if the id column already exists
        cursor.execute("SHOW COLUMNS FROM extension_data LIKE 'id'")
        result = cursor.fetchone()

        if not result:
            # Add the id column with auto-increment
            alter_query = "ALTER TABLE extension_data ADD COLUMN id INT AUTO_INCREMENT PRIMARY KEY FIRST"
            cursor.execute(alter_query)
            conn.commit()
            print("Table 'extension_data' altered successfully. `id` column added.")
        else:
            print("Column 'id' already exists in 'extension_data'.")

    except Exception as e:
        print(f"An error occurred: {e}")
    finally:
        if 'conn' in locals() and conn.is_connected():
            cursor.close()
            conn.close()

if __name__ == "__main__":
    alter_table()