fn create_root_user()

in core/server/src/streaming/systems/users.rs [112:143]

• 30 lines of code
• 13 McCabe index (conditional complexity)

    fn create_root_user() -> User {
        let username = env::var(IGGY_ROOT_USERNAME_ENV);
        let password = env::var(IGGY_ROOT_PASSWORD_ENV);
        if (username.is_ok() && password.is_err()) || (username.is_err() && password.is_ok()) {
            panic!("When providing the custom root user credentials, both username and password must be set.");
        }
        if username.is_ok() && password.is_ok() {
            info!("Using the custom root user credentials.");
        } else {
            info!("Using the default root user credentials.");
        }

        let username = username.unwrap_or(DEFAULT_ROOT_USERNAME.to_string());
        let password = password.unwrap_or(DEFAULT_ROOT_PASSWORD.to_string());
        if username.is_empty() || password.is_empty() {
            panic!("Root user credentials are not set.");
        }
        if username.len() < MIN_USERNAME_LENGTH {
            panic!("Root username is too short.");
        }
        if username.len() > MAX_USERNAME_LENGTH {
            panic!("Root username is too long.");
        }
        if password.len() < MIN_PASSWORD_LENGTH {
            panic!("Root password is too short.");
        }
        if password.len() > MAX_PASSWORD_LENGTH {
            panic!("Root password is too long.");
        }

        User::root(&username, &password)
    }