package updater

import (
	"bytes"
	"net"
	"sort"
)

func uniqueSortedIPs(ips []net.IP) []net.IP {
	uniqueIPs := make(map[string]struct{})
	for _, ip := range ips {
		uniqueIPs[ip.String()] = struct{}{}
	}
	ips = make([]net.IP, len(uniqueIPs))
	i := 0
	for ip := range uniqueIPs {
		ips[i] = net.ParseIP(ip)
		i++
	}
	sort.Slice(ips, func(i, j int) bool {
		return bytes.Compare(ips[i], ips[j]) < 0
	})
	return ips
}