use std::fmt::Display;

#[derive(Clone,Copy,Debug)]
pub struct Uuid(pub uuid::Uuid);

impl Display for Uuid {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}", self.0)
    }
}

macro_rules! ns {
    ($n:expr) => {
        uuid::Uuid::new_v5(&uuid::Uuid::NAMESPACE_DNS, $n.as_bytes())
    }
}

impl Uuid {
    pub fn get(ns: &str, buf: &mut [u8]) -> Self {
        Self(uuid::Uuid::new_v5(&ns!(ns), buf))
    }
}