From 8a550a5523ceb33edd02441a1585519d3b0d763b Mon Sep 17 00:00:00 2001
From: Thomas Oettli <spacefreak@noop.ch>
Date: Fri, 29 Nov 2024 23:17:59 +0100
Subject: [PATCH] fix SummarizeValues to return last non-NaN value

---
 expr/consolidations/consolidations.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/expr/consolidations/consolidations.go b/expr/consolidations/consolidations.go
index 4ae01b726..908e3afb9 100644
--- a/expr/consolidations/consolidations.go
+++ b/expr/consolidations/consolidations.go
@@ -188,7 +188,13 @@ func SummarizeValues(f string, values []float64, XFilesFactor float32) float64 {
 			}
 		}
 	case "last", "current":
-		rv = values[len(values)-1]
+		rv = math.NaN()
+		for i := len(values) - 1; i >= 0; i-- {
+			if !math.IsNaN(values[i]) {
+				rv = values[i]
+				break
+			}
+		}
 		total = notNans(values)
 	case "range", "rangeOf":
 		vMax := math.Inf(-1)