From 864c94ea940e0656a3ac2b7b5d6601e07579d5e6 Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Sun, 28 Jul 2024 15:25:49 +0200
Subject: [PATCH] Disallow routing to departing station

---
 src/main.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index 23c4e1a..fefcd95 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -194,6 +194,10 @@ async fn route_station_to_dest_station(
         return Err((StatusCode::NOT_FOUND, String::from("Unknown destination station")));
     }
 
+    if dest_station_id == station_id {
+        return Err((StatusCode::NOT_FOUND, String::from("Cannot route to departing station as destination")));
+    }
+
     let station_properties = match state.stations.get(&station_id) {
         Some(v) => v,
         None => return Err((StatusCode::INTERNAL_SERVER_ERROR, String::from("Station properties for departing station missing"))),