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_columns_to_nvarchar():
    conn = None
    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()

        print("Altering 'name' column to NVARCHAR...")
        cursor.execute("ALTER TABLE extension_data MODIFY name NVARCHAR(255)")
        print("Altering 'position' column to NVARCHAR...")
        cursor.execute("ALTER TABLE extension_data MODIFY position NVARCHAR(255)")
        
        conn.commit()
        print("Columns 'name' and 'position' altered to NVARCHAR successfully.")

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

if __name__ == "__main__":
    alter_columns_to_nvarchar()