// Run like this:  simple_client address port
// Results in argv ["./simple_client", "address", "port"]

#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/ip.h>
#include<netdb.h>
#include<arpa/inet.h>
#include<stdio.h>
#include<unistd.h>
#include<stdlib.h>

struct game_header {
	unsigned char mtype;
	uint16_t points, stat_limit, description_length;
} __attribute__((packed));

int main(int args, char ** argv){
	struct sockaddr_in sad;
	sad.sin_port = htons(atoi(argv[2]));
	sad.sin_family = AF_INET;

	int skt = socket(AF_INET, SOCK_STREAM, 0);

	struct hostent* entry = gethostbyname(argv[1]);
	struct in_addr **addr_list = (struct in_addr**)entry->h_addr_list;
	struct in_addr* c_addr = addr_list[0];
	char* ip_string = inet_ntoa(*c_addr);
	sad.sin_addr = *c_addr;
	printf("Connecting to:  %s\n", ip_string);

	connect(skt, (struct sockaddr*)&sad, sizeof(struct sockaddr_in));

	unsigned char stuff[3];
	read(skt, &stuff, 3);
	uint16_t extension_length;
	read(skt, &extension_length, sizeof(uint16_t));
	printf("Message Type:  %u\n", stuff[0]);
	printf("Version:  %u.%u\n", stuff[1], stuff[2]);
	printf("Extension Length:  %u\n", extension_length);

	// We'll use a struct this time, for variety
	struct game_header gh;
	recv(skt, &gh, sizeof(gh), MSG_WAITALL);
	printf("Type:  %u\nInitial Points:  %u\nStat Limit:  %u\nDescription Length:  %u\n",
			gh.mtype, gh.points, gh.stat_limit, gh.description_length);

	char description[gh.description_length + 1];
	recv(skt, description, gh.description_length, 0);
	description[gh.description_length] = 0;
	printf("Description:  %s\n", description);
	
	close(skt);



	return 0;
}