Embed index.html and dedup people

src/main.rs

@@ -1,4 +1,8 @@
-use axum::{routing::post, Json, Router};
+use axum::{
+    response::Html,
+    routing::{get, post},
+    Json, Router,
+};
 use once_cell::sync::Lazy;
 use rand::{thread_rng, Rng};
 use serde::Deserialize;
@@ -10,7 +14,9 @@ async fn main() {
     tracing_subscriber::fmt::init();
 
     // build our application with some routes
-    let app = Router::new().route("/secret-santa-api", post(input));
+    let app = Router::new()
+        .route("/", get(|| async { Html(INDEX_HTML.as_str()) }))
+        .route("/api", post(input));
 
     // run it with hyper
     let addr = SocketAddr::from(([127, 0, 0, 1], 3067));
@@ -20,6 +26,15 @@ async fn main() {
         .unwrap();
 }
 
+static INDEX_HTML: Lazy<String> = Lazy::new(|| {
+    let content = include_str!("index.html");
+    let options: String = everyone()
+        .into_iter()
+        .map(|person| format!(r#"<option value="{person}">{person}</option>"#))
+        .collect();
+    content.replace("__OPTIONS__", &options)
+});
+
 static STATE: Lazy<Mutex<State>> = Lazy::new(Mutex::default);
 
 struct State {