#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <fcntl.h>
#include <assert.h>
#ifdef WIN32
#include <wabdefs.h>
#include <winnt.h>

/* http://predef.sourceforge.net/precomp.html */
#if (!((defined(_MSC_VER)) && (_MSC_VER < 1300)))
#include <guiddef.h>
#endif

#include <setupapi.h>
#else
#include <dirent.h>
#include <errno.h>
#endif

#include "version.h"
#include "ClientStateAndData.h"
//#include "hca.h"
#include "hcb.h"

#include "hcb.h"
#include "ClientStateAndData.h"
#include "ClientServerMapper.h"


/* Macro for debug printouts */
#ifdef DEBUG
#define D(x) x
#else
#define D(x)
#endif


  ClientServerMapper::ClientServerMapper()
  {
    for (unsigned int i=0; i<SIZE_OF_ARRAY(clientStateAndData); i++)
    {
      clientStateAndData[i] = NULL;
    }
  }

  void ClientServerMapper::newClient(Hcb *hca, int permanent)
  {
    for (unsigned int i=0; i<SIZE_OF_ARRAY(clientStateAndData); i++)
    {
      const ClientStateAndData *c = clientStateAndData[i];
      if (c==NULL)
      {
        clientStateAndData[i] = new ClientStateAndData(hca, permanent);
        return;
      }
    }
    fprintf(stderr,"to many clients\n");
    delete hca;
  };

  // returns:
  // -2 if shutdown server command issued
  // 0 otherwise
  int ClientServerMapper::process()
  {
    for (unsigned int i=0; i<SIZE_OF_ARRAY(clientStateAndData); i++)
    {
      ClientStateAndData *c = clientStateAndData[i];
      if (c!=NULL)
      {
        const int r=c->process();
        if (r==-1)
        {
          D(fprintf(stderr,"one client disconnected\n");)
          delete c;
          clientStateAndData[i]=NULL;
        }
        else if (r==-2)
        {
          D(fprintf(stderr,"client gave shutdown server command\n");)
          delete c;
          clientStateAndData[i]=NULL;
          return -2;
        }
        else if (r<0)
        {
          D(fprintf(stderr,"unknown error from client process\n");)
        }
      }
    }
    return 0;
  }

  ClientStateAndData *clientStateAndData[32];