From af3cb8c018e1e6fd3c65498e6bfbf6331349c9c7 Mon Sep 17 00:00:00 2001
From: Jon Zimbel <63608771+jzimbel-mbta@users.noreply.github.com>
Date: Thu, 31 Aug 2023 14:14:16 -0400
Subject: [PATCH] fix: Handle unrecognized screen IDs in `screen_name_for_id`
 (#1842)

---
 lib/screens/log_screen_data.ex | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/screens/log_screen_data.ex b/lib/screens/log_screen_data.ex
index c86c9c1ca..9f8679791 100644
--- a/lib/screens/log_screen_data.ex
+++ b/lib/screens/log_screen_data.ex
@@ -128,8 +128,10 @@ defmodule Screens.LogScreenData do
   end
 
   defp screen_name_for_id(screen_id) do
-    %Screen{name: name} = State.screen(screen_id)
-    name
+    case State.screen(screen_id) do
+      %Screen{name: name} -> name
+      nil -> "UNKNOWN_SCREEN"
+    end
   end
 
   defp insert_screen_side(data, nil), do: data