package main

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

var versionSplitRegex = regexp.MustCompile("([0-9]+|[a-z]+)")

func splitVer(ver Version) []string {
	return versionSplitRegex.FindAllString(ver.String(), -1)
}

func SimpleCompareVer(ver1 Version, ver2 Version) int {
	ver1_split := splitVer(ver1)
	ver2_split := splitVer(ver2)

	for i, item := range ver1_split {
		if i >= len(ver2_split) {
			return 1
		}
		item2 := ver2_split[i]
		item_int, err := strconv.ParseInt(item, 10, 32)
		item2_int, err2 := strconv.ParseInt(item2, 10, 32)
		if err == nil && err2 == nil {
			if item_int > item2_int {
				return 1
			}
			if item_int == item2_int {
				continue
			}
			if item_int < item2_int {
				return -1
			}
		}
		if c := strings.Compare(item, ver2_split[i]); c != 0 {
			return c
		}
	}
	return 0
}