/*
 * fragment.c
 *
 * Copyright 2022 Jonathan Schöbel <jonathan@Ubermos-2019>
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 *
 *
 */


#include <errno.h>
#include <stdlib.h>
#include <string.h>

#include "macro.h"
#include "error.h"
#include "log.h"

#include "data.h"
#include "validator.h"

#include "fragment.h"


struct SH_Fragment *
SH_Fragment_new (const char * tag, struct SH_Data * data,
		 struct SH_Error * error)
{
	struct SH_Fragment * fragment;

	if (!SH_Validator_check_tag (data->validator, tag))
	{
		ERROR2 ("Tag %s is'nt valid.\n", tag);

		if (error != NULL)
		{
			error->type = VALUE_ERROR;
		}

		return NULL;
	}

	fragment = malloc (sizeof (struct SH_Fragment));
	if (fragment == NULL)
	{
		ERROR1 ("Memory allocation for SH_Fragment failed.\n");

		if (error != NULL)
		{
			error->type = ALLOCATION_FAILED;
		}

		return NULL;
	}

	fragment->data = data;

	fragment->tag = strdup (tag);
	if (errno == ENOMEM)
	{
		ERROR1 ("Memory allocation for fragment tag failed.\n");

		if (error != NULL)
		{
			error->type = ALLOCATION_FAILED;
		}

		return NULL;
	}

	if (error != NULL)
	{
		error->type = SUCCESS;
	}

	return fragment;
}

void
SH_Fragment_free (struct SH_Fragment * fragment, struct SH_Error * error)
{
	free (fragment->tag);
	free (fragment);

	if (error != NULL)
	{
		error->type = SUCCESS;
	}

	return;
}

char *
SH_Fragment_get_tag (struct SH_Fragment * fragment,
		     struct SH_Error * error)
{
	char * tag;

	tag = strdup (fragment->tag);

	if (errno == ENOMEM)
	{
		ERROR1 ("Memory allocation for fragment tag failed.\n");

		if (error != NULL)
		{
			error->type = ALLOCATION_FAILED;
		}

		return NULL;
	}

	if (error != NULL)
	{
		error->type = SUCCESS;
	}

	return tag;
}