FormatInteger

util.go

@@ -51,6 +51,45 @@ func FormatBytes(bytes int64) string {
 	return fmt.Sprintf("%.2f%cB", float64(bytes)/float64(div), "KMGTPE"[exp])
 }
 
+func FormatInteger(num int) string {
+	if num == 0 {
+		return "0"
+	}
+
+	negative := false
+	if num < 0 {
+		negative = true
+		num = -num
+	}
+
+	str := strconv.Itoa(num)
+	var result strings.Builder
+
+	length := len(str)
+	remainder := length % 3
+	if remainder == 0 {
+		remainder = 3
+	}
+
+	for i, char := range str {
+		if i == 0 {
+			result.WriteRune(char)
+			if remainder == 1 && length > 1 {
+				result.WriteString(",")
+			}
+			continue
+		}
+		if (i-remainder+1)%3 == 0 {
+			result.WriteString(",")
+		}
+		result.WriteRune(char)
+	}
+	if negative {
+		return "-" + result.String()
+	}
+	return result.String()
+}
+
 func If[T any](condition bool, trueVal, falseVal T) T {
 	if condition {
 		return trueVal