Add static serving from assets built into binary.

src/web.rs

@@ -5,6 +5,7 @@ use std::path::PathBuf;
 use log::info;
 use log::warn;
 use prometheus::Encoder;
+use rust_embed::RustEmbed;
 use serde::Deserialize;
 use warp;
 use warp::http::header::{HeaderMap, HeaderValue};
@@ -31,8 +32,26 @@ fn metrics() -> impl Filter<Extract = (impl warp::reply::Reply,), Error = Reject
         .with(warp::reply::with::headers(text_headers))
 }
 
-fn index() -> Result<impl warp::Reply, warp::Rejection> {
-    Ok("Hello world")
+fn index(path: warp::path::FullPath) -> Result<impl warp::Reply, warp::Rejection> {
+    let path = path.as_str();
+    let path = if path.ends_with("/") {
+        format!("{}index.html", path.to_string())
+    } else {
+        path.to_string()
+    };
+    let path = &path[1..];
+
+    match Asset::get(path) {
+        Some(bytes) => {
+            let mime = mime_guess::from_path(path).first_or_octet_stream();
+
+            Ok(warp::http::Response::builder()
+                .header("Content-Type", mime.essence_str())
+                .header("Content-Length", bytes.len())
+                .body(bytes.into_owned()))
+        }
+        None => Err(warp::reject::not_found()),
+    }
 }
 
 fn albums(lib: Library) -> Result<impl warp::Reply, warp::Rejection> {
@@ -102,10 +121,15 @@ fn image(
     }
 }
 
+#[derive(RustEmbed)]
+#[folder = "react-debug/build/"]
+struct Asset;
+
 pub fn run(addr: SocketAddr, root: PathBuf) -> Result<(), Box<dyn Error>> {
     let lib = Library::new(root)?;
     let lib = warp::any().map(move || lib.clone());
-    let index = warp::path::end().and_then(index);
+
+    let index = warp::get2().and(warp::path::full()).and_then(index);
 
     let albums = warp::path("albums").and(lib.clone()).and_then(albums);