/**
 * Copyright © 2015  Mattias Andrée <maandree@member.fsf.org>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include "client.h"



/**
 * The name of the process.
 */
char *argv0 = "satrm";



/**
 * Print usage information.
 */
static void
usage(void)
{
	fprintf(stderr, "usage: %s JOB-ID...\n",
	        strrchr(argv0) ? (strrchr(argv0) + 1) : argv0);
	exit(2);
}


/**
 * Remove a job from the queue of jobs.
 * 
 * @param   argc  Should be 2.
 * @param   argv  The command line, should only include the name
 *                of the process and the ID of the job to remove.
 * @return  0     The process was successful.
 * @return  1     The process failed queuing the job.
 * @return  2     User error, you do not know what you are doing.
 * @return  3     satd(1) failed.
 */
int
main(int argc, char *argv[])
{
	size_t n;
	char *msg;
	int i;

	if (argc > 0)  argv0 = argv[0];
	if (argc < 2)  usage();
	if (!strcmp(argv[1], "--")
		argv++, argc--;
	for (i = 1; i < argc; i++)
		if (strchr("-", argv[i][0]))
			usage();

	if (!(msg = malloc(n = measure_array(argv + 1))))
		goto fail;
	store_array(msg, argv + 1);

	if (send_command(SAT_REMOVE, n, msg)) {
		if (errno)
			goto fail;
		free(msg);
		return 3;
	}
	return 0;

fail:
	perror(*argv);
	free(msg);
	return 1;
}