//
//	aegis - project change supervisor
//	Copyright (C) 2003-2008 Peter Miller
//
//	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 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, see
//	<http://www.gnu.org/licenses/>.
//

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


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

    cp = pp->change_get();
    cstate_data = cp->cstate_get();
    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
    return 0;
}