package types

import (
	"fmt"
	"net"
)

type TxId [4]byte
type Ipv4Addr [4]byte
type HwAddr [16]byte

const (
	ServerPort = 67
	ClientPort = 68
)

func Ipv4AddrFromNetIP(ip net.IP) Ipv4Addr {
	ipv4 := ip.To4()
	return Ipv4Addr{ipv4[0], ipv4[1], ipv4[2], ipv4[3]}
}

func (addr Ipv4Addr) ToNetIPv4() net.IP {
	return net.IPv4(addr[0], addr[1], addr[2], addr[3])
}

func (addr Ipv4Addr) String() string {
	return addr.ToNetIPv4().String()
}

func (addr HwAddr) String() string {
	return fmt.Sprintf("%02x:%02x:%02x:%02x:%02x:%02x", addr[0], addr[1], addr[2], addr[3], addr[4], addr[5])
}

func HwAddrFromString(s string) (addr HwAddr, err error) {
	_, err = fmt.Sscanf(s, "%02x:%02x:%02x:%02x:%02x:%02x", &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5])
	return addr, err
}