Some refactorings

utils/gg/gg.go

@@ -1,14 +1,32 @@
 // Package gg implements simple "extensions" to Go language. Based on https://github.com/icza/gog
 package gg
 
-// IfZero returns v if it is a non-zero value, orElse otherwise.
+// If returns v if it is a non-zero value, orElse otherwise.
 //
 // This is similar to elvis operator (?:) in Groovy and other languages.
 // Note: Different from the real elvis operator, the orElse expression will always get evaluated.
-func IfZero[T comparable](v T, orElse T) T {
+func If[T comparable](v T, orElse T) T {
 	var zero T
 	if v != zero {
 		return v
 	}
 	return orElse
 }
+
+// FirstOr is a generic helper function that returns the first non-zero value from
+// a list of comparable values, or a default value if all the values are zero.
+func FirstOr[T comparable](or T, values ...T) T {
+	// Initialize a zero value of the same type as the input values.
+	var zero T
+
+	// Loop through each input value and check if it is non-zero. If a non-zero value
+	// is found, return it immediately.
+	for _, v := range values {
+		if v != zero {
+			return v
+		}
+	}
+
+	// If all the input values are zero, return the default value.
+	return or
+}