//
//	aegis - project change supervisor
//	Copyright (C) 1999, 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 <common/error.h> // for assert


void
change_architecture_add(change::pointer cp, string_ty *name)
{
    assert(cp->reference_count >= 1);
    cstate_ty *cstate_data = cp->cstate_get();
    if (!cstate_data->architecture)
    {
	cstate_data->architecture =
	    (cstate_architecture_list_ty *)
	    cstate_architecture_list_type.alloc();
    }

    //
    // We must be careful to suppress duplicates, otherwise the
    // architecture prerequisites for state transitions are
    // unsatifiable.
    //
    for (size_t j = 0; j < cstate_data->architecture->length; ++j)
	if (str_equal(name, cstate_data->architecture->list[j]))
	    return;

    meta_type *type_p = 0;
    string_ty **who_p =
	(string_ty **)
	cstate_architecture_list_type.list_parse
	(
    	    cstate_data->architecture,
    	    &type_p
	);
    assert(type_p == &string_type);
    *who_p = str_copy(name);
}