From 6a3402d5351429776ec9614f979a56e33efbc962 Mon Sep 17 00:00:00 2001
From: Martin Man <mman@martinman.net>
Date: Tue, 22 Oct 2024 18:08:27 +0200
Subject: [PATCH] fix: Prevent NaN (division by zero) on Dashboard

---
 src/client/views/dashboard/Dashboard.tsx | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/client/views/dashboard/Dashboard.tsx b/src/client/views/dashboard/Dashboard.tsx
index 7432d23..f0b7093 100644
--- a/src/client/views/dashboard/Dashboard.tsx
+++ b/src/client/views/dashboard/Dashboard.tsx
@@ -37,6 +37,7 @@ function Dashboard() {
   })
 
   const deviceKeys = Object.keys(deviceStatistics || {}).sort()
+  const adjustedMeasurementRate = measurementRate !== 0 ? measurementRate : 0.001
 
   const websocketStatus = useSelector((state: AppState) => state.websocketStatus)
   if (websocketStatus !== "open") {
@@ -102,7 +103,7 @@ function Dashboard() {
                           </CCol>
                           <CCol className="text-end" xs="auto">
                             <strong> {deviceStats.measurementRate} </strong>(
-                            {((deviceStats.measurementRate / measurementRate) * 100).toFixed(0)}
+                            {((deviceStats.measurementRate / adjustedMeasurementRate) * 100).toFixed(0)}
                             %)
                           </CCol>
                         </CRow>
@@ -111,7 +112,7 @@ function Dashboard() {
                             <CProgress
                               className="progress-xs"
                               color="warning"
-                              value={(deviceStats.measurementRate / measurementRate) * 100}
+                              value={(deviceStats.measurementRate / adjustedMeasurementRate) * 100}
                             />
                           </CCol>
                         </CRow>