/*
  Copyright 2010 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/>.
*/


/* This code is meant to submit files to the distren server(s). Let's say server for now. And let's state file purpose in each file just so we don't get screwed up! */


/* Ideas for php-side stuff:
 *
 * PHP adds the users... has captcha and email confirmation wth a pseudo-random number that
 * the user must enter on the site. Apache should be running mod_peruser for safety, and I'm
 * thinking zserver2 for web serving for convenience...
 */


#include "common/config.h"

#include "distren.h"

#include <stdio.h> /* sprintf, printf */
#include <stdlib.h> /* malloc, free */
#include <unistd.h> /* getopt */
#include <confuse.h>
#include <string.h> // for strcat

int main(int argc, char *argv[])
{
  int doLogin = 0;

  char *input;
  char *output;
  char *jobid;

  char *username;
  char *password;

  char curopt;

  distren_t distren;
  distren_job_t distren_job;

  input = NULL;
  output = NULL;

  while(-1 != (curopt = getopt(argc, argv, "i:o:u:p:h")))
    {
      if(curopt == ':')
	{
	  fprintf(stderr, "-%c: is missing an argument\n", optopt);
	  return 1;
	}
      else if(curopt == '?')
	{
	  fprintf(stderr, "-%c: invalid option specified\n", optopt);
	  return 1;
	}
      else if(curopt == 'h')
	{
	  fprintf(stderr, "Usage: %s -i <inputfile> -o <outputfile> [ -u <username> -p <password> ]\n", argv[0]);
	  fprintf(stderr, "\t-i\tSpecifies the input file\n\
\t-o\tSpecifies the output file\n\
\t-h\tShows this help message\n");
	  
	  //  don't return here because options_init will have an overall
	  //  options help page
	  
	}
      else if(curopt == 'u') {
        doLogin = 1;
        username = strdup(optarg);
      }
      else if(curopt == 'p') {
        doLogin = 1;
        password = strdup(optarg);
      }
      else if(curopt == 'i')
	
	 //  TODO: is strdup good or bad? what about
	 //  the idea that all libs should allow plugging different
	 //  malloc/free implementations in?
	 
	input = strdup(optarg);
      else if(curopt == 'o')
	output = strdup(optarg);
    }

  
     // give this error after the general arguments parsing so that
     // the general help from options_init can have effect
  if(!username || !password){
    fprintf(stderr, "Username and password must be specified");
    return 1;
  }
  if(doLogin == 1){
    fprintf(stderr, "Trying username and password on server...");
    return 0;
  }
  if(!input
     || !output)
    {
      fprintf(stderr, "Input and output files must be specified\n");
      return 1;
    }

  fprintf(stderr, "reading from %s\nwriting to %s\n", input, output);

  if(distren_init_mf(&distren, &malloc, &free))
    {
      fprintf(stderr, "error initializing distren handle\n");
      return 1;
    }

  if(distren_submit_file(distren, &distren_job, input))
    {
      fprintf(stderr, "error submitting file\n");
      return 1;
    }

  if(distren_job_getid(distren_job, &jobid))
    {
      fprintf(stderr, "error retrieving job id\n");
      return 1;
    }
  fprintf(stdout, "jobid: %s\n", jobid);

  if(distren_job_retrieve_file(distren_job, output))
    {
      fprintf(stderr, "error retrieving output file\n");
      return 1;
    }

  // if these following lines fail, it'll be reported as a core dump ;-)
  distren_job_free(distren_job);
  distren_free(distren);



 return 0;
};