fix(snmp): inherit dim algorithm if not set

modules/snmp/charts.go

@@ -77,7 +77,7 @@ func newChart(cfg ChartConfig) (*module.Chart, error) {
 	}
 
 	if chart.Title == "" {
-		chart.Title = "Untilted chart"
+		chart.Title = "Untitled chart"
 	}
 	if chart.Units == "" {
 		chart.Units = "num"
@@ -86,7 +86,13 @@ func newChart(cfg ChartConfig) (*module.Chart, error) {
 		chart.Priority += module.Priority
 	}
 
+	seen := make(map[string]struct{})
+	var a string
 	for _, cfg := range cfg.Dimensions {
+		if cfg.Algorithm != "" {
+			seen[cfg.Algorithm] = struct{}{}
+			a = cfg.Algorithm
+		}
 		dim := &module.Dim{
 			ID:   strings.TrimPrefix(cfg.OID, "."),
 			Name: cfg.Name,
@@ -98,6 +104,13 @@ func newChart(cfg ChartConfig) (*module.Chart, error) {
 			return nil, err
 		}
 	}
+	if len(seen) == 1 && a != "" && len(chart.Dims) > 1 {
+		for _, d := range chart.Dims {
+			if d.Algo == "" {
+				d.Algo = module.DimAlgo(a)
+			}
+		}
+	}
 
 	return chart, nil
 }