use std::borrow::Cow;
use anyhow::Result;
use storekey::{BorrowDecode, Encode};
use crate::catalog::{self, NamespaceId};
use crate::key::category::{Categorise, Category};
use crate::kvs::{KVKey, impl_kv_key_storekey};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Encode, BorrowDecode)]
pub(crate) struct Us<'a> {
__: u8,
_a: u8,
pub ns: NamespaceId,
_b: u8,
_c: u8,
_d: u8,
pub user: Cow<'a, str>,
}
impl_kv_key_storekey!(Us<'_> => catalog::UserDefinition);
pub fn new(ns: NamespaceId, user: &str) -> Us<'_> {
Us::new(ns, user)
}
pub fn prefix(ns: NamespaceId) -> Result<Vec<u8>> {
let mut k = super::all::new(ns).encode_key()?;
k.extend_from_slice(b"!us\x00");
Ok(k)
}
pub fn suffix(ns: NamespaceId) -> Result<Vec<u8>> {
let mut k = super::all::new(ns).encode_key()?;
k.extend_from_slice(b"!us\xff");
Ok(k)
}
impl Categorise for Us<'_> {
fn categorise(&self) -> Category {
Category::NamespaceUser
}
}
impl<'a> Us<'a> {
pub fn new(ns: NamespaceId, user: &'a str) -> Self {
Self {
__: b'/',
_a: b'*',
ns,
_b: b'!',
_c: b'u',
_d: b's',
user: Cow::Borrowed(user),
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn key() {
let val = Us::new(NamespaceId(1), "testuser");
let enc = Us::encode_key(&val).unwrap();
assert_eq!(enc, b"/*\x00\x00\x00\x01!ustestuser\0");
}
#[test]
fn test_prefix() {
let val = super::prefix(NamespaceId(1)).unwrap();
assert_eq!(val, b"/*\x00\x00\x00\x01!us\0");
}
#[test]
fn test_suffix() {
let val = super::suffix(NamespaceId(1)).unwrap();
assert_eq!(val, b"/*\x00\x00\x00\x01!us\xff");
}
}