package common

import (
	"regexp"
	"strconv"
	"strings"
)

func Unify(s string) string {
	s = strings.TrimSpace(s)
	s = strings.ToLower(s)
	for strings.Contains(s, "  ") {
		s = strings.ReplaceAll(s, "  ", " ")
	}
	return s
}

func ZeroPad(num int, length int) string {
	str := strconv.Itoa(num)
	if len(str) >= length {
		return str
	}
	return strings.Repeat("0", length-len(str)) + str
}

var numericRegex = regexp.MustCompile(`^[\d]+$`)

func IsNumeric(num string) bool {
	return numericRegex.MatchString(num)
}