/*
  Copyright 2009 Nathan Phillip Brink, Ethan Zonca, Matthew Orlando

  This file is a part of DistRen.

  DistRen is free software: you can redistribute it and/or modify
  it under the terms of the GNU Affero General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  DistRen 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 Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License
  along with DistRen.  If not, see <http://www.gnu.org/licenses/>.

 */

/*
 * **********************************************************************************
 * Slave functions / etc resides below. Wouldn't a seperate file make this easier??
 *
 * Slave listens on server for a command in the format of each function...
 * We need if's for returns... ==> watchdog
 * **********************************************************************************
*/

// Provides DISTREN_REQUEST* which is in reality, DISTREN_SEND(signal)
#include "protocol.h"

int main(int argc, char *arvg[])
{

	///////////////////// Semi-pseudo Slave Code ///////////////////////////


	int slavestatus = 0;

	if('no username in config file, no key present'){
		fprintf(stderr "run distrend -c username] [emailaddr] to register")
	}
	if('they use a -c flag according to getopt, with 2 args'){
		*key = register_user(username, email); // register_user returns a uniquely random url to a key
		get("http://protofusion.org/distren/key/%s",key);
		fprintf(stderr, "you registered, hopefully successfully. Invoke distrend with no args now.");
	}
	if('username is in conf file and key is present'){
		loginuser(username);
	}

	if('slave recieves "start frame#, job#"'){
		fprintf(stderr, "Got frame %d in job %d, preparing to render...",frame,job);
		get('http://distren.protofusion.org/srv/job#.tgz');
		exec('tar -xvf job#.tgz /tmp/distren/job#'); // somehow
		exec_blender(jobname.blendfile, jobnum.framenum.JPG, jobnum); // (check the args, we'll need to adjust for different output formats)... set SLAVESTATUS=1 while rendering, SLAVESTATUS=2 when done
	}
	if(SLAVESTATUS==2){
		fprintf(stderr, "Finished frame %d in job %d",framenum,jobnum);
		SLAVESTATUS=0;
	}
	if(SLAVESTATUS==0){
		tell_the_server(DISTREN_REQUEST_DONEFRAME);
		fprintf(stderr, "Idle. No frames to render.");
	}
	while(SLAVESTATUS==1){
		tell_the_server(DISTREN_REQUEST_PROGRESS);
		fprintf(stderr, "Rendering frame %d in job %d...",framenum,jobnum);
		delay(1000); // or not... this should be more event-driven, but should still give a heartbeat to the server
	}

  return 0;
}