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use super::{CreateError, Entity, GetError, Tag};
use std::ops::Deref;
use drawbridge_type::digest::{Algorithms, ContentDigest};
use drawbridge_type::{Meta, RepositoryConfig, TagEntry, TagName};
use anyhow::{anyhow, Context};
use camino::{Utf8Path, Utf8PathBuf};
#[repr(transparent)]
#[derive(Copy, Clone, Debug)]
pub struct Repository<'a, P = Utf8PathBuf>(Entity<'a, P>);
impl<'a, P> Deref for Repository<'a, P> {
type Target = Entity<'a, P>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl<'a, P> From<Entity<'a, P>> for Repository<'a, P> {
fn from(entity: Entity<'a, P>) -> Self {
Self(entity)
}
}
impl<'a, P: AsRef<Utf8Path>> Repository<'a, P> {
pub async fn get_json(&self) -> Result<RepositoryConfig, GetError<anyhow::Error>> {
self.get_content_json().await
}
pub async fn is_public(&self) -> Result<bool, GetError<anyhow::Error>> {
let conf = self.get_json().await?;
Ok(conf.public)
}
pub async fn tags(&self) -> Result<Vec<TagName>, GetError<anyhow::Error>> {
self.read_dir("tags")
.await?
.try_fold(vec![], |mut names, entry| {
let name = entry?
.file_name()
.context("failed to read tag name")?
.parse()
.context("failed to parse tag name")?;
names.push(name);
Ok(names)
})
.map_err(GetError::Internal)
}
pub async fn tags_json(&self) -> Result<(ContentDigest, Vec<u8>), GetError<anyhow::Error>> {
let tags = self.tags().await?;
let buf = serde_json::to_vec(&tags)
.context("failed to encode tags as JSON")
.map_err(GetError::Internal)?;
let (n, hash) = Algorithms::default()
.read_sync(&buf[..])
.context("failed to compute tag digest")
.map_err(GetError::Internal)?;
if n != buf.len() as u64 {
return Err(GetError::Internal(anyhow!(
"invalid amount of bytes read, expected: {}, got {n}",
buf.len(),
)));
}
Ok((hash, buf))
}
pub fn tag(&self, name: &TagName) -> Tag<'a, Utf8PathBuf> {
self.child(format!("tags/{name}")).into()
}
pub async fn create_tag(
&self,
name: &TagName,
meta: Meta,
entry: &TagEntry,
) -> Result<Tag<'a, Utf8PathBuf>, CreateError<anyhow::Error>> {
let tag = self.tag(name);
tag.create_dir("").await?;
tag.create_json(meta, entry).await?;
Ok(tag)
}
}
