/* This file is part of Eclat.
   Copyright (C) 2012 Sergey Poznyakoff.
 
   Eclat 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 3, or (at your option)
   any later version.
 
   Eclat 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 General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with Eclat.  If not, see <http://www.gnu.org/licenses/>. */

#include "eclat.h"

int
eclat_describe_tags(CURL *curl, int argc, char **argv)
{
	int i, j, k;
	struct ec2_query *q;
	char *url;
	char *bufptr = NULL;
	size_t bufsize = 0;
	size_t bs;
	CURLcode res;
	struct wordsplit ws;
	int wsflags;
	
	q = eclat_query_create(use_ssl ? EC2_QF_HTTPS : 0, endpoint, "/");
	eclat_query_add_param(q, "Action", "DescribeTags");

	ws.ws_delim = ",";
	wsflags = WRDSF_DEFFLAGS | WRDSF_DELIM;
	for (i = 0, j = 1; i < argc; i++) {
		char *p = strchr(argv[i], '=');
		if (!p)
			die(EX_USAGE, "maformed filter: %s", argv[i]);
		*p++ = 0;
		grecs_asprintf(&bufptr, &bufsize, "Filter.%d.Name", j);
		eclat_query_add_param(q, bufptr, argv[i]);

		if (wordsplit(p, &ws, wsflags))
			die(EX_SOFTWARE, "wordsplit failed at \"%s\": %s",
			    p, wordsplit_strerror(&ws));
		wsflags |= WRDSF_REUSE;

		for (k = 0; k < ws.ws_wordc; k++) {
			grecs_asprintf(&bufptr, &bufsize, "Filter.%d.Value.%d",
				       j, k+1);
			eclat_query_add_param(q, bufptr, ws.ws_wordv[k]);
		}
	}
	if (wsflags & WRDSF_REUSE)
		wordsplit_free(&ws);
	free(bufptr);
	
	eclat_query_add_param(q, "AWSAccessKeyId", access_key);
	
	eclat_query_signature(q, secret_key);
	url = eclat_query_to_url(q, NULL);

	debug(ECLAT_DEBCAT_MAIN, 1, ("using URL: %s", url));
	curl_easy_setopt(curl, CURLOPT_URL, url);

	free(url);
	eclat_query_free(q);

	if (dry_run_mode)
		debug(ECLAT_DEBCAT_MAIN, 1, ("not sending request"));
	else {
		res = curl_easy_perform(curl);
		
		if (res != CURLE_OK)
			err("CURL: %s", curl_easy_strerror(res));
	}
	
	return 0;
}