#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <netdb.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <iostream.h>

void RcvMsg(int desc);

int main (int argc, char** argv)
{
  if (argc != 4)
    {
      cout << "zeroC <socktype> <server ip address> <port>\n";
      cout << "\twhere socktype: \n\t\t1 -> SOCK_STREAM\n\t\t2 -> SOCK_CLUSTER\n";
      return 1;
    }

  int socktype = atoi(argv[1]);
  if ((socktype <= 0) || (socktype > 2))
    {
      cout << "Socktype must be 1 for SOCK_STREAM or 2 for SOCK_CLUSTER\n";
      return 1;
    }
  
  int sockDeclVal = 0;
  switch(socktype)
    {
    case 1:
      sockDeclVal = SOCK_STREAM;
      break;
    case 2:
      sockDeclVal = SOCK_CLUSTER;
      break;
    }
  
  char* machineName = argv[2];
  int port = atoi(argv[3]);
  
  struct hostent* host = gethostbyname(machineName);
  
  struct sockaddr_in sockStruct;
  sockStruct.sin_family =  AF_INET;
  sockStruct.sin_port = port;
  sockStruct.sin_addr.s_addr = inet_addr(machineName);
  
  int desc = socket(PF_INET, sockDeclVal, 0); //0->ip
  if (desc == -1)
    {
      cout << "Error setting protocol\n";
      return 1;
    }
  
  
  if ( connect(desc, (const sockaddr*)&sockStruct, sizeof(sockStruct)) == -1)
    {
      cout << "Failed to connect, " << strerror(errno) << "\n";
      return 1;
    }
  
  //we have connected
  
  RcvMsg(desc);
  RcvMsg(desc);
  RcvMsg(desc);
  
  close(desc);
  
  return 0;
};


void RcvMsg(int desc)
{
  char msgLenStr[5];
  if (recv(desc, (void*)msgLenStr, 2, MSG_WAITALL) != 2)
    {
      cout << "Did not recv the next message length\n";
      exit(1);
    }
  msgLenStr[2] = 0;
  int len = atoi(msgLenStr);
  int rcvAmount = 0;
  char* newMsg = new char[len];
  if (rcvAmount = recv(desc, (void*)newMsg, len, MSG_WAITALL) != len)
    {
      cout << "Wanted to recv " << len << " but only got " << rcvAmount;
      exit(1);
    }
  newMsg[len-1] = 0;
  cout <<  newMsg << "\n";
}