/*****************************************************************************\
 *  api.c - Slurm REST API openapi operations handlers
 *****************************************************************************
 *  Copyright (C) 2019-2020 SchedMD LLC.
 *  Written by Nathan Rini <nate@schedmd.com>
 *
 *  This file is part of Slurm, a resource management program.
 *  For details, see <https://slurm.schedmd.com/>.
 *  Please also read the included file: DISCLAIMER.
 *
 *  Slurm 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.
 *
 *  In addition, as a special exception, the copyright holders give permission
 *  to link the code of portions of this program with the OpenSSL library under
 *  certain conditions as described in each individual source file, and
 *  distribute linked combinations including the two. You must obey the GNU
 *  General Public License in all respects for all of the code used other than
 *  OpenSSL. If you modify file(s) with this exception, you may extend this
 *  exception to your version of the file(s), but you are not obligated to do
 *  so. If you do not wish to do so, delete this exception statement from your
 *  version.  If you delete this exception statement from all source files in
 *  the program, then also delete it here.
 *
 *  Slurm 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 Slurm; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA.
\*****************************************************************************/

#include "config.h"

#include <unistd.h>

#include "slurm/slurm.h"

#include "src/common/data.h"
#include "src/common/log.h"
#include "src/common/xassert.h"
#include "src/common/xmalloc.h"
#include "src/common/xstring.h"

#include "src/slurmrestd/openapi.h"
#include "src/slurmrestd/operations.h"
#include "src/slurmrestd/ops/api.h"
#include "src/slurmrestd/ref.h"
#include "src/slurmrestd/xjson.h"

typedef enum {
	URL_TAG_UNKNOWN = 0,
	URL_TAG_GENERATE,
} url_tag_t;

static int _op_handler_openapi(const char *context_id,
			       http_request_method_t method,
			       data_t *parameters, data_t *query,
			       int tag, data_t *resp)
{
	int rc;

	rc = data_copy(resp, get_openapi_specification()) ?
			SLURM_SUCCESS :
			SLURM_ERROR;

	return rc;
}

extern int init_op_openapi(void)
{
	int rc;

	if ((rc = bind_operation_handler("/openapi.yaml", _op_handler_openapi,
					 URL_TAG_GENERATE)))
		/* no-op */;
	else if ((rc = bind_operation_handler("/openapi.json",
					      _op_handler_openapi,
					      URL_TAG_GENERATE)))
		/* no-op */;
	else if ((rc = bind_operation_handler("/openapi", _op_handler_openapi,
					      URL_TAG_GENERATE)))
		/* no-op */;
	else
		rc = bind_operation_handler("/openapi/v3", _op_handler_openapi,
					    URL_TAG_GENERATE);

	return rc;
}

extern void destroy_op_openapi(void)
{
	unbind_operation_handler(_op_handler_openapi);
}