//
//	aegis - project change supervisor
//	Copyright (C) 2005-2008 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/file.h>
#include <common/error.h> // for assert
#include <libaegis/project/file.h>
#include <common/trace.h>


string_ty *
project_file_path(project_ty *pp, fstate_src_ty *src)
{
    trace(("project_file_path(pp = %8.8lX, src = %08lX)\n{\n", (long)pp,
	(long)src));
    trace(("pp->name_get() = \"%s\"\n", pp->name_get()->str_text));
    trace(("src->file_name = \"%s\"\n",
	((src && src->file_name) ? src->file_name->str_text : "")));
    project_ty *ppp = pp;
    for (ppp = pp; ppp; ppp = (ppp->is_a_trunk() ? 0 : ppp->parent_get()))
    {
	change::pointer cp = ppp->change_get();
	fstate_src_ty *src_data = change_file_find(cp, src, view_path_first);
	if (!src_data)
	    continue;
	switch (src_data->action)
	{
	case file_action_transparent:
	    continue;

	case file_action_remove:
	    break;

	case file_action_create:
	case file_action_modify:
	case file_action_insulate:
#ifndef DEBUG
	default:
#endif
	    // should be file_action_remove
	    assert(!src_data->deleted_by);
	    if (src_data->deleted_by)
		break;

	    // should be file_action_transparent
	    assert(!src_data->about_to_be_copied_by);
	    if (src_data->about_to_be_copied_by)
		continue;

	    // should be file_action_transparent
	    assert(!src_data->about_to_be_created_by);
	    if (src_data->about_to_be_created_by)
		continue;
	    break;
	}
	string_ty *result = change_file_path(cp, src_data);
	assert(result);
	assert(result->str_text[0] == '/');
	trace(("return \"%s\";\n", result->str_text));
	trace(("}\n"));
	return result;
    }

    //
    // We failed to find the file by UUID, so now we look again by
    // name.  This situation can arrise when two branches independently
    // create the name file (by name), and then a cross branch merge is
    // attempted.
    //
    string_ty *result = project_file_path(pp, src->file_name);
    assert(result);
    trace(("return \"%s\";\n", result->str_text));
    trace(("}\n"));
    return result;
}
