package updateip

import (
	"io"
	"net"
	"net/http"
)

type Resolver interface {
	CurrentIP() (net.IP, error)
}

func NewResolver() Resolver {
	return new(Ipify)
}

type Ipify struct{}

func (Ipify) CurrentIP() (net.IP, error) {
	r, err := http.Get("https://api.ipify.org")
	if err != nil {
		return nil, err
	}

	defer func() { _ = r.Body.Close() }()

	b, err := io.ReadAll(r.Body)
	if err != nil {
		return nil, err
	}

	return net.ParseIP(string(b)), nil
}