#include "network.h"

void SendMessage(UDPsocket sock, IPaddress address, ProtocolMessage m) {
	UDPpacket packet = {
		.channel = -1,
		.data    = (void *) &m,
		.len     = MessageSize(m),
		.maxlen  = sizeof(ProtocolMessage),
		.status  = 0,
		.address = address,
	};

	if(!SDLNet_UDP_Send(sock, -1, &packet)) {
		SDL_Log("Messge not sended: %s\n", SDLNet_GetError());
		exit(1);
	}
}

bool RecvMessage(UDPsocket sock, IPaddress * address, ProtocolMessage * m) {
	UDPpacket packet = {
		.channel = -1,
		.data    = (void *) m,
		.len     = sizeof(ProtocolMessage),
		.maxlen  = sizeof(ProtocolMessage),
		.status  = 0,
		.address = (IPaddress) { 0, 0 },
	};

	int status;
	status = SDLNet_UDP_Recv(sock, &packet);
	if(status < 0)
		goto error_recv;
	else if(status == 0)
		goto error_norecv;

	if(address)
		*address = packet.address;

	return true;

error_recv:
	SDL_Log("Messge not received: %s\n", SDLNet_GetError());
	exit(1);
error_norecv:
	return false;
}

bool WaitMessage(UDPsocket sock, IPaddress * address, ProtocolMessage * m, uint32_t timeout) {
	uint32_t lastTime = SDL_GetTicks();
	while(SDL_GetTicks() - lastTime < timeout) {
		if(RecvMessage(sock, address, m))
			return true;
		SDL_Delay(1);
	}
	return false;
}