package utils

import (
	"strconv"
	"strings"
)

func getSubVersions(ver string) []int {
	var vers [4]int
	vv := strings.Split(ver, ".")
	for i, v := range vv {
		vers[i], _ = strconv.Atoi(v)
	}
	return vers[:]
}

// VersionCompare
func VersionCompare(a, b string) int {

	aa := getSubVersions(a)
	bb := getSubVersions(b)

	for i := 0; i < len(aa) && i < len(bb); i++ {

		if aa[i] == bb[i] {
			continue
		}

		if aa[i] < bb[i] {
			return -1
		}

		return 1
	}

	if len(aa) == len(bb) {
		return 0
	}
	if len(aa) < len(bb) {
		return -1
	}
	return 1
}