From be49d74db016f92b213961ee9c07f2fd19c3d3d2 Mon Sep 17 00:00:00 2001
From: Christian Moyzyczyk <motzky@gmx.net>
Date: Sun, 8 Dec 2024 19:06:50 +0100
Subject: [PATCH] Write fallback to database, if car's display_name is null and
 API returns NULL

---
 TeslaLogger/WebHelper.cs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/TeslaLogger/WebHelper.cs b/TeslaLogger/WebHelper.cs
index 729d55024..22abe15f0 100644
--- a/TeslaLogger/WebHelper.cs
+++ b/TeslaLogger/WebHelper.cs
@@ -1939,6 +1939,13 @@ public string GetVehicles()
                     System.Diagnostics.Debug.WriteLine(DateTime.Now.ToString() + " : " + OnlineState);
 
                     string display_name = r2["display_name"].ToString();
+                    if(string.IsNullOrEmpty(display_name) && string.IsNullOrEmpty(car.DisplayName))
+                    {
+                        // Grafana dashboards break, if Car's display_name is null or empty, so
+                        // if display_name is null from API and car.DisplayName is also null already
+                        // we just write "Car $id" to database because that is how the fallback in admin panel works                        
+                        display_name = $"Car {car.CarInDB}";
+                    }
                     if (!string.IsNullOrEmpty(display_name) && car.DisplayName != display_name)
                     {
                         car.DisplayName = display_name;