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use axum::{
body::{boxed, Full},
extract::{Extension, Path},
handler::Handler,
http::{header, StatusCode, Uri},
response::{IntoResponse, Response},
routing::{get, Router},
AddExtensionLayer, Json,
};
use mime_guess;
use rust_embed::RustEmbed;
use serde::{Deserialize, Serialize};
use std::{
fs,
io::{self, BufRead},
net::SocketAddr,
path::{self, PathBuf},
sync::Arc,
};
use crate::match_runner::MatchMeta;
struct State {
workspace_root: PathBuf,
}
impl State {
fn new(workspace_root: PathBuf) -> Self {
Self { workspace_root }
}
}
pub async fn run(workspace_root: PathBuf) {
let shared_state = Arc::new(State::new(workspace_root));
// build our application with a route
let app = Router::new()
.route("/", get(index_handler))
.route("/api/matches", get(list_matches))
.route("/api/matches/:match_id", get(get_match))
.fallback(static_handler.into_service())
.layer(AddExtensionLayer::new(shared_state));
// run it
let addr = SocketAddr::from(([127, 0, 0, 1], 5000));
println!("serving at http://{}", addr);
axum::Server::bind(&addr)
.serve(app.into_make_service())
.await
.unwrap();
}
#[derive(Serialize, Deserialize)]
struct MatchData {
name: String,
#[serde(flatten)]
meta: MatchMeta,
}
async fn list_matches(Extension(state): Extension<Arc<State>>) -> Json<Vec<MatchData>> {
let matches = state
.workspace_root
.join("matches")
.read_dir()
.unwrap()
.filter_map(|entry| {
let entry = entry.unwrap();
get_match_data(&entry).ok()
})
.collect::<Vec<_>>();
Json(matches)
}
// extracts 'filename' if the entry matches'$filename.log'.
fn get_match_data(entry: &fs::DirEntry) -> io::Result<MatchData> {
let file_name = entry.file_name();
let path = path::Path::new(&file_name);
let name = get_match_name(&path)
.ok_or_else(|| io::Error::new(io::ErrorKind::InvalidData, "invalid match name"))?;
let meta = read_match_meta(&entry.path())?;
Ok(MatchData { name, meta })
}
fn get_match_name(path: &path::Path) -> Option<String> {
if path.extension() != Some("log".as_ref()) {
return None;
}
path.file_stem()
.and_then(|name| name.to_str())
.map(|name| name.to_string())
}
fn read_match_meta(path: &path::Path) -> io::Result<MatchMeta> {
let file = fs::File::open(path)?;
let mut reader = io::BufReader::new(file);
let mut line = String::new();
reader.read_line(&mut line)?;
let meta: MatchMeta = serde_json::from_str(&line)?;
Ok(meta)
}
async fn get_match(Extension(state): Extension<Arc<State>>, Path(id): Path<String>) -> String {
let mut match_path = state.workspace_root.join("matches").join(id);
match_path.set_extension("log");
fs::read_to_string(match_path).unwrap()
}
async fn index_handler() -> impl IntoResponse {
static_handler("/index.html".parse::<Uri>().unwrap()).await
}
// static_handler is a handler that serves static files from the
async fn static_handler(uri: Uri) -> impl IntoResponse {
let path = uri.path().trim_start_matches('/').to_string();
StaticFile(path)
}
#[derive(RustEmbed)]
#[folder = "../web/pw-frontend/dist/"]
struct Asset;
pub struct StaticFile<T>(pub T);
impl<T> IntoResponse for StaticFile<T>
where
T: Into<String>,
{
fn into_response(self) -> Response {
let path = self.0.into();
match Asset::get(path.as_str()) {
Some(content) => {
let body = boxed(Full::from(content.data));
let mime = mime_guess::from_path(path).first_or_octet_stream();
Response::builder()
.header(header::CONTENT_TYPE, mime.as_ref())
.body(body)
.unwrap()
}
None => Response::builder()
.status(StatusCode::NOT_FOUND)
.body(boxed(Full::from("404")))
.unwrap(),
}
}
}
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