/*
 *	aegis - project change supervisor
 *	Copyright (C) 2003 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 convert delta numbers to change numbers
 */

#include <change.h>
#include <cstate.h>
#include <project/history.h>
#include <sub.h>


long
project_delta_number_to_change_number(project_ty *pp, long delta_number)
{
    change_ty	    *cp;
    cstate_ty       *cstate_data;
    sub_context_ty  *scp;

    cp = project_change_get(pp);
    cstate_data = change_cstate_get(cp);
    if (cstate_data->branch)
    {
	cstate_branch_history_list_ty *csbhlp;

	csbhlp = cstate_data->branch->history;
	if (csbhlp)
	{
	    size_t          j;

	    for (j = 0; j < csbhlp->length; ++j)
	    {
		cstate_branch_history_ty *hp;

		hp = csbhlp->list[j];
		if (hp->delta_number == delta_number)
		    return hp->change_number;
	    }
	}
    }

    scp = sub_context_new();
    sub_var_set_long(scp, "Name", delta_number);
    project_fatal(pp, scp, i18n("no delta $name"));
    /*NOTREACHED*/
}
