/*
 *	aegis - project change supervisor
 *	Copyright (C) 2001 Peter Miller;
 *	All rights reserved.
 *
 *	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., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: functions to manipulate file_lists
 */

#include <change_set/file_list.h>
#include <mem.h>


void
change_set_file_list_constructor(csflp)
	change_set_file_list_ty *csflp;
{
	csflp->item = 0;
	csflp->length = 0;
	csflp->maximum = 0;
}


void
change_set_file_list_destructor(csflp)
	change_set_file_list_ty *csflp;
{
	size_t		j;

	for (j = 0; j < csflp->length; ++j)
		change_set_file_destructor(csflp->item + j);
	if (csflp->item)
		mem_free(csflp->item);
	csflp->item = 0;
	csflp->length = 0;
	csflp->maximum = 0;
}


#ifdef DEBUG

void
change_set_file_list_validate(csflp)
	change_set_file_list_ty *csflp;
{
	size_t		j;

	for (j = 0; j < csflp->length; ++j)
		change_set_file_validate(csflp->item + j);
}

#endif


void
change_set_file_list_append(csflp, filename, edit, action, tag)
	change_set_file_list_ty *csflp;
	string_ty	*filename;
	string_ty	*edit;
	change_set_file_action_ty action;
	string_list_ty	*tag;
{
	change_set_file_ty *csfp;
	size_t		j;

	/*
	 * If we already have the file, just update the edit number.
	 */
	for (j = 0; j < csflp->length; ++j)
	{
		csfp = csflp->item + j;
		if (str_equal(filename, csfp->filename))
		{
			str_free(csfp->edit);
			csfp->edit = str_copy(edit);
			csfp->action = action;
			return;
		}
	}

	if (csflp->length >= csflp->maximum)
	{
		size_t		nbytes;

		csflp->maximum = csflp->maximum * 2 + 4;
		nbytes = csflp->maximum * sizeof(csflp->item[0]);
		csflp->item = mem_change_size(csflp->item, nbytes);
	}
	csfp = csflp->item + csflp->length++;
	change_set_file_constructor(csfp, filename, edit, action, tag);
}