ccs: web: get settings for a single interface

charge-controller-supervisor/src/web.rs

@@ -53,6 +53,7 @@ pub fn rocket(state: ServerState) -> rocket::Rocket<rocket::Build> {
                 primary_interface,
                 interface,
                 interface_full,
+                interface_settings,
                 get_control,
                 enable_control,
                 disable_control
@@ -155,6 +156,20 @@ async fn interface_full(
     Ok(Json(data.as_ref().ok_or(ServerError::NoData)?.clone()))
 }
 
+#[get("/interface/<name>/settings")]
+async fn interface_settings(
+    name: &str,
+    state: &State<ServerState>,
+) -> Result<Json<crate::controller::ControllerSettings>, ServerError> {
+    let data = state
+        .data
+        .get(name)
+        .ok_or(ServerError::NotFound)?
+        .read_settings()
+        .await;
+    Ok(Json(data.as_ref().ok_or(ServerError::NoData)?.clone()))
+}
+
 #[get("/metrics")]
 fn metrics() -> Result<String, ServerError> {
     Ok(