package peer

import (
	"io"
	"net"
	"net/netip"
)

type UDPConn interface {
	ReadFromUDPAddrPort(b []byte) (n int, addr netip.AddrPort, err error)
	WriteToUDPAddrPort([]byte, netip.AddrPort) (int, error)
	WriteToUDP([]byte, *net.UDPAddr) (int, error)
}

type ifWriter io.Writer

type udpReader interface {
	ReadFromUDPAddrPort(b []byte) (n int, addr netip.AddrPort, err error)
}

type udpWriter interface {
	WriteToUDPAddrPort([]byte, netip.AddrPort) (int, error)
}

type mcUDPWriter interface {
	WriteToUDP([]byte, *net.UDPAddr) (int, error)
}

type Marshaller interface {
	Marshal([]byte) []byte
}

type dataPacketSender interface {
	SendDataPacket(pkt []byte, peer *remotePeer)
	RelayDataPacket(pkt []byte, peer, relay *remotePeer)
}

type controlPacketSender interface {
	SendControlPacket(pkt Marshaller, peer *remotePeer)
	RelayControlPacket(pkt Marshaller, peer, relay *remotePeer)
}

type encryptedPacketSender interface {
	SendEncryptedDataPacket(pkt []byte, peer *remotePeer)
}

type controlMsgHandler interface {
	HandleControlMsg(pkt any)
}