From 83da3c3823f4fa6c5697120783920f5ec9f34ec8 Mon Sep 17 00:00:00 2001
From: Mads Mogensen <mail@madsmogensen.dk>
Date: Thu, 7 Dec 2023 09:15:01 +0100
Subject: [PATCH] Fix crash when getting measurements

---
 .../Controllers/MeasurementController.cs           | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/CentralHub.Api/Controllers/MeasurementController.cs b/CentralHub.Api/Controllers/MeasurementController.cs
index 14e7323..e55f7ab 100644
--- a/CentralHub.Api/Controllers/MeasurementController.cs
+++ b/CentralHub.Api/Controllers/MeasurementController.cs
@@ -93,8 +93,18 @@ private static IReadOnlyList<AggregatedMeasurements> CreateMeasurements(IReadOnl
             .Where(am => am.EndTime > (DateTime.UtcNow - TimeSpan.FromDays(1)))
             .ToImmutableArray();
 
-        var bluetoothCalibrationNumber = recentAggregatedMeasurements.Min(am => am.BluetoothCount);
-        var wifiCalibrationNumber = recentAggregatedMeasurements.Min(am => am.WifiCount);
+        int bluetoothCalibrationNumber;
+        int wifiCalibrationNumber;
+        if (recentAggregatedMeasurements.Any())
+        {
+            bluetoothCalibrationNumber = recentAggregatedMeasurements.Min(am => am.BluetoothCount);
+            wifiCalibrationNumber = recentAggregatedMeasurements.Min(am => am.WifiCount);
+        }
+        else
+        {
+            bluetoothCalibrationNumber = 0;
+            wifiCalibrationNumber = 0;
+        }
 
         return aggregatedMeasurements.Select(am => new AggregatedMeasurements(
             am.AggregatedMeasurementDtoId,