/*
 * Tlf - contest logging program for amateur radio operators
 * Copyright (C) 2001-2002-2003 Rein Couperus <pa0rct@amsat.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Library General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <errno.h>
#include <curses.h>
#include "netkeyer.h"

int netkeyer_port = 6789;
char netkeyer_hostaddress[16]="127.0.0.1";
int socket_descriptor;
int close_rc;
ssize_t sendto_rc;
struct sockaddr_in address;
struct hostent *hostbyname;


int netkeyer_init (void)
{

/*
   Translate a host name to IP address
*/
  	hostbyname = gethostbyname(netkeyer_hostaddress);
  	if (hostbyname == NULL)
 	 {
    		perror ("gethostbyname failed");
    	return(-1);
  	}
/*
   Initialize socket address structure for Internet Protocols
   The address comes from the datastructure returned by gethostbyname()
*/ 
  	bzero(&address, sizeof(address)); /* empty data structure */
  	address.sin_family = AF_INET;
  	memcpy(&address.sin_addr.s_addr, hostbyname->h_addr, sizeof(address.sin_addr.s_addr));
  	address.sin_port = htons(netkeyer_port);
/*
   Create a UDP socket
*/
  	socket_descriptor = socket(AF_INET, SOCK_DGRAM, 0);
  	if (socket_descriptor == -1)
  	{
    		perror ("socket call failed");
    	return(-1);
  	}

  return(0);
  }
  /*-------------------------end netkeyer_init---------------*/

int netkeyer_close(void){

   close_rc = close(socket_descriptor);
   if (close_rc == -1)
   {
     perror ("close call failed");
     return(-1);
   }

return(0);
}

  /*-------------------------end netkeyer_close---------------*/

int netkeyer(int cw_op, char *cwmessage)
{
char buf[80];

	switch (cw_op){

		case K_RESET :
  			buf[0]= 27;
			sprintf(buf+1,"0");                                    // reset
 			break;
		case K_MESSAGE :
			sprintf(buf, cwmessage);                     // cw message
 			break;
		case K_SPEED :
  			buf[0]= 27;
			sprintf(buf+1,"2");                                   // speed
			sprintf(buf+2, cwmessage);
 			break;
		case K_TONE :                                               // tone
  			buf[0]= 27;
			sprintf(buf+1,"3");
			sprintf(buf+2, cwmessage);
 			break;
		case K_ABORT :                                           // message abort
  			buf[0]= 27;
			sprintf(buf+1,"4");
 			break;
		case K_STOP :                                              // keyer daemon stop
  			buf[0]= 27;
			sprintf(buf+1,"5");
 			break;
		case K_WORDMODE  :                              // non-interruptable
  			buf[0]= 27;
			sprintf(buf+1,"6");
 			break;
		case K_WEIGHT  :                              // set weight
  			buf[0]= 27;
			sprintf(buf+1,"7");
			sprintf(buf+2, cwmessage);
 			break;
		case K_DEVICE  :                              // set device
  			buf[0]= 27;
			sprintf(buf+1,"8");
			sprintf(buf+2, cwmessage);
 			break;
		case K_ADDRESS  :                              // set device
  			buf[0]= 27;
			sprintf(buf+1,"9");
			sprintf(buf+2, cwmessage);
 			break;
		case K_PTT  :                              // PTT on/off
  			buf[0]= 27;
			sprintf(buf+1,"a");
			sprintf(buf+2, cwmessage);
 			break;
		case K_SET14  :                              // set pin 14 of lp port
  			buf[0]= 27;
			sprintf(buf+1,"b");
			sprintf(buf+2, cwmessage);
 			break;
		case K_TUNE  :                              // tune
  			buf[0]= 27;
			sprintf(buf+1,"c");
			sprintf(buf+2, cwmessage);
 			break;
		case K_TOD  :                              // set Turn On Delay (TXDELAY)
  			buf[0]= 27;
			sprintf(buf+1,"d");
			sprintf(buf+2, cwmessage);
 			break;
		case K_SWITCH  :                              // set band switch output
  			buf[0]= 27;
			sprintf(buf+1,"e");
			sprintf(buf+2, cwmessage);
 			break;
		case K_SIDETONE  :                              // set sidetone output to sound card
  			buf[0]= 27;
			sprintf(buf+1,"f");
			sprintf(buf+2,"s");
 			break;
		case K_STVOLUME  :                              // set sound card output volume
  			buf[0]= 27;
			sprintf(buf+1,"g");
			sprintf(buf+2, cwmessage);
 			break;


		default :
			buf[0]='\0';
	}

	if (buf[0] != '\0') {
		sendto_rc = sendto(socket_descriptor,   buf, sizeof(buf),
			0, (struct sockaddr *)&address, sizeof(address));
	}

	buf[0]='\0';
	cw_op = K_RESET;
//	cwmessage[0]='\0';

	if (sendto_rc == -1)
    	{
     	 	mvprintw(24,0, "Keyer send failed...!");
		refresh();
		sleep(2);
		return(-1);
     	}

return(0);
}