#pragma once

#include <string>
#include <SDL_net.h>

#define MAX_PACKET_SIZE 250

class UDPbase
{
	IPaddress addr;
	public:
		UDPbase (const char* host, const Uint16 port)
		{
			if (SDLNet_ResolveHost (&addr, host, SDLNet_Read16 (&port)) < 0)
			{
				throw "SDLNet_ResolveHost: " + std::string (SDLNet_GetError ());
			}
		}
		~UDPbase (void)
		{
		}
		UDPsocket Open (void)
		{
			return Open (addr.port);
		}
		UDPsocket Open (const Uint16 port)
		{
			UDPsocket sock = NULL;
			IPaddress* addr;
			if (NULL == (sock = SDLNet_UDP_Open (port)))
			{
				throw "SDLNet_UDP_Open: " + std::string (SDLNet_GetError ());
			}
			if (NULL != (addr = SDLNet_UDP_GetPeerAddress (sock, -1)))
			{
				SDL_Log ("Opened UDP port %d", SDLNet_Read16 (&addr->port));
			}
			return sock;
		}
		int Bind (UDPsocket sock, const int channel)
		{
			int binding;
			SDL_assert (NULL != sock);
			if (-1 == (binding = SDLNet_UDP_Bind (sock, channel, &addr)))
			{
				throw "SDLNet_UDP_Bind: " + std::string (SDLNet_GetError ());
			}
			SDL_Log ("Binding UDP socket %s ch%d", this->toString ().c_str (), binding);
			return binding;
		}
		void Close (UDPsocket sock)
		{
			SDL_assert (NULL != sock);
			SDLNet_UDP_Close (sock);
			sock = NULL;
		}
		std::string toString (void)
		{
			return std::string (SDLNet_ResolveIP (&addr)) + ":" + std::to_string (addr.port);
		}
};