From 47c61f0417da1a8b36f5f2b509a88188bfa82684 Mon Sep 17 00:00:00 2001
From: Nathan Coad <nathan@thecoads.com>
Date: Mon, 8 Apr 2024 16:57:52 +1000
Subject: [PATCH] avoid panic when vm wasn't found in our search

---
 main.go | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/main.go b/main.go
index bba2b6d..14f7135 100644
--- a/main.go
+++ b/main.go
@@ -291,7 +291,6 @@ func main() {
 				}
 
 				if hostFound {
-
 					// make sure that this event is within 10 minutes of the corresponding host failed event
 					unreachableStartComparison := h.CreatedTime.In(location).Add(time.Duration(int64(time.Minute) * -10))
 					unreachableEndComparison := h.CreatedTime.In(location).Add(time.Duration(int64(time.Minute) * 10))
@@ -330,6 +329,9 @@ func main() {
 			var failedHost string
 			var possibleHosts []types.Event
 			var vmDisconnectedEvents []types.Event
+			var vmFound bool
+			var vmOS string
+			var vmPowerState string
 			event := vmFailures[i]
 			vmRestartTime := event.CreatedTime.In(location)
 
@@ -356,6 +358,7 @@ func main() {
 				//continue
 			} else {
 				// Use VmDisconnectedEvent to see which host this VM was on
+				vmFound = true
 				vmDisconnectedEvents = getEvents([]string{"VmDisconnectedEvent"}, []types.ManagedObjectReference{vm.Reference()}, *begin, *end)
 				log.Printf("Retrieved '%d' VmDisconnectedEvent events.\n", len(vmDisconnectedEvents))
 			}
@@ -499,6 +502,14 @@ func main() {
 			duration := restartTime.Sub(outageStart)
 			out := time.Time{}.Add(duration)
 
+			if vmFound {
+				vmOS = vm.Summary.Guest.GuestFullName
+				vmPowerState = string(vm.Summary.Runtime.PowerState)
+			} else {
+				vmOS = ""
+				vmPowerState = ""
+			}
+
 			// Create a new result
 			result := OutageResults{
 				VM:                event.Vm.Name,
@@ -508,8 +519,8 @@ func main() {
 				Cluster:           event.ComputeResource.Name,
 				FailedHost:        failedHost,
 				NewHost:           event.Host.Name,
-				GuestOS:           vm.Summary.Guest.GuestFullName,
-				CurrentPowerState: string(vm.Summary.Runtime.PowerState),
+				GuestOS:           vmOS,
+				CurrentPowerState: vmPowerState,
 				Description:       event.FullFormattedMessage,
 			}
 			// Append to list of all results