refactor: change asset handling

read assets from the template state instead of path to be able to embed
them into the binary instead of reading them form a path

src/router.rs

@@ -1,17 +1,39 @@
-use axum::{extract::State, response::Html, routing::get, Router};
+use axum::{
+    extract::{Path, State},
+    http::{header, HeaderMap, HeaderValue},
+    response::Html,
+    routing::get,
+    Router,
+};
 use axum_htmx::HxRequest;
 use chrono::Utc;
 use minijinja::context;
 use serde::Serialize;
 use sqlx::prelude::FromRow;
-use tower_http::services::ServeDir;
 
-use crate::{AppState, ResultTemplate, Tx};
+use crate::{AppState, Result, ResultTemplate, Tx};
 
 pub fn new() -> Router<AppState> {
     Router::new()
         .route("/", get(handler_home))
-        .nest_service("/assets", ServeDir::new("dist/assets"))
+        .route("/assets/{*asset}", get(handle_assets))
+}
+
+async fn handle_assets(
+    State(state): State<AppState>,
+    Path(asset): Path<String>,
+) -> Result<(HeaderMap, String)> {
+    let mut headers = HeaderMap::new();
+
+    let mime = mime_guess::from_path(&asset).first_raw();
+
+    if let Some(mime) = mime {
+        headers.insert(header::CONTENT_TYPE, HeaderValue::from_static(mime));
+    }
+
+    let template = state.tmpl_env.get_template(&format!("assets/{}", asset))?;
+
+    Ok((headers, template.render(context!())?))
 }
 
 #[derive(FromRow, Debug, Serialize)]