/*
** Copyright (C) 2010 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
**
** 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 3, 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.
**
*/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /*HAVE_CONFIG_H*/

#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include "mu-msg.h"
#include "mu-maildir.h"
#include "mu-index.h"
#include "mu-msg-iter.h"
#include "mu-msg-str.h"

#include "mu-util.h"
#include "mu-output-link.h"


/* create a linksdir if it not exist yet; if it already existed,
 * remove old links if opts->clearlinks was specified */
gboolean
mu_output_link_create_dir (const char *linksdir, gboolean clearlinks)
{
	g_return_val_if_fail (linksdir, FALSE);

	if (access (linksdir, F_OK) != 0) {
		if (!mu_maildir_mkmdir (linksdir, 0700, TRUE)) 
			return FALSE;

	} else if (clearlinks)
		mu_maildir_clear_links (linksdir);
	
	return TRUE;
}

gboolean
mu_output_link_row (MuMsgIter *iter, const char* linksdir)
{
	const char *path;
	const MuMsgField *pathfield;

	g_return_val_if_fail (iter, FALSE);
	g_return_val_if_fail (linksdir, FALSE);	
	g_return_val_if_fail (!mu_msg_iter_is_done (iter), FALSE);
		
	pathfield = mu_msg_field_from_id (MU_MSG_FIELD_ID_PATH);
				
	path = mu_msg_iter_get_field (iter, pathfield);
	if (!path)
		return FALSE;
	
	/* this might happen  if the database is not up-to-date, not an error */
	if (access (path, R_OK) != 0) {
		if (errno == ENOENT)
			g_warning ("Cannot find source message %s: "
				   "the database is not up-to-date", path);
		else
			g_warning ("Cannot read source message %s: %s", path,
				   strerror (errno));
		return FALSE;
	}
	
	if (!mu_maildir_link (path, linksdir))
		return FALSE;
		 
	return TRUE;
}