use anyhow::{anyhow, Context, Result};
use serde::{Deserialize, Serialize};
use std::{
convert::{TryFrom, TryInto},
fmt::{self, Display},
sync::Arc,
};
use thiserror::Error;
use super::{name::Name, version::Version};
#[derive(Clone, Eq, PartialOrd, Ord, PartialEq, Debug, Hash)]
pub struct Container {
inner: Arc<Inner>,
}
impl Container {
pub fn new(name: Name, version: Version) -> Container {
Container {
inner: Arc::new(Inner { name, version }),
}
}
pub fn name(&self) -> &Name {
&self.inner.name
}
pub fn version(&self) -> &Version {
&self.inner.version
}
}
#[derive(Error, Debug)]
#[error(transparent)]
pub struct InvalidContainerError(#[from] anyhow::Error);
impl Display for Container {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}:{}", self.inner.name, self.inner.version,)
}
}
impl TryFrom<&str> for Container {
type Error = InvalidContainerError;
fn try_from(value: &str) -> Result<Self, Self::Error> {
let (name, version) = value
.split_once(':')
.ok_or_else(|| anyhow!("missing container version"))?;
let name = Name::try_from(name).context("invalid name")?;
let version = Version::parse(version).context("invalid container version")?;
Ok(Container::new(name, version))
}
}
impl TryFrom<&Container> for Container {
type Error = InvalidContainerError;
fn try_from(container: &Container) -> Result<Self, Self::Error> {
Ok(container.clone())
}
}
impl<N, V> TryFrom<(N, V)> for Container
where
N: TryInto<Name>,
N::Error: Into<anyhow::Error>,
V: ToString,
{
type Error = InvalidContainerError;
fn try_from((name, version): (N, V)) -> Result<Self, Self::Error> {
let name = name
.try_into()
.map_err(Into::into)
.context("invalid name")?;
let version = Version::parse(&version.to_string()).context("invalid version")?;
Ok(Container::new(name, version))
}
}
impl Serialize for Container {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
serializer.serialize_str(&format!("{}:{}", self.inner.name, self.inner.version))
}
}
impl<'de> Deserialize<'de> for Container {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: serde::Deserializer<'de>,
{
let value = String::deserialize(deserializer)?;
Container::try_from(value.as_str()).map_err(serde::de::Error::custom)
}
}
#[derive(Eq, PartialOrd, PartialEq, Ord, Debug, Hash, Serialize, Deserialize)]
struct Inner {
name: Name,
version: Version,
}
#[test]
#[allow(clippy::unwrap_used)]
fn try_from() {
assert_eq!(
Container::new("test".try_into().unwrap(), Version::parse("0.0.1").unwrap()),
"test:0.0.1".try_into().unwrap()
);
}
#[test]
fn invalid_name() {
assert!(Container::try_from("test\0:0.0.1").is_err());
assert!(Container::try_from("tes%t:0.0.1").is_err());
}