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use ::mime::{FromStrError, Mime};
use axum::{
http::{StatusCode, header},
response::{IntoResponse, Response},
};
use rust_embed::EmbeddedFile;
use super::{error::NotFound, mime};
use crate::error::Internal;
#[derive(rust_embed::Embed)]
#[folder = "$OUT_DIR/ui"]
pub struct Assets;
impl Assets {
pub fn load(path: impl AsRef<str>) -> Result<Asset, Error> {
let path = path.as_ref();
let mime = mime::from_path(path)?;
Self::get(path)
.map(|file| Asset(mime, file))
.ok_or(Error::NotFound(path.into()))
}
pub fn index() -> Result<Asset, Internal> {
// "not found" in this case really is an internal error, as it should
// never happen. `index.html` is a known-valid path with a known-valid
// file extension.
Ok(Self::load("index.html")?)
}
}
pub struct Asset(Mime, EmbeddedFile);
impl IntoResponse for Asset {
fn into_response(self) -> Response {
let Self(mime, file) = self;
(
StatusCode::OK,
[(header::CONTENT_TYPE, mime.as_ref())],
file.data,
)
.into_response()
}
}
#[derive(Debug, thiserror::Error)]
pub enum Error {
#[error("not found: {0}")]
NotFound(String),
#[error(transparent)]
Mime(#[from] FromStrError),
}
impl IntoResponse for Error {
fn into_response(self) -> Response {
match self {
Self::NotFound(_) => NotFound(self.to_string()).into_response(),
Self::Mime(_) => Internal::from(self).into_response(),
}
}
}
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