// Cyphesis Online RPG Server and AI Engine
// Copyright (C) 2011 Alistair Riddoch
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA


#include "RuleHandler.h"

#include "common/log.h"
#include "common/compose.hpp"

using Atlas::Message::Element;
using Atlas::Message::MapType;
using Atlas::Message::ListType;

using String::compose;

RuleHandler::~RuleHandler()
{
}

int RuleHandler::getScriptDetails(const Atlas::Message::MapType & script,
                                  const std::string & class_name,
                                  const std::string & context,
                                  std::string & script_package,
                                  std::string & script_class)
{
    MapType::const_iterator J = script.find("name");
    MapType::const_iterator Jend = script.end();

    if (J == Jend || !J->second.isString()) {
        log(ERROR, compose("%1 \"%2\" script has no name.",
                           context, class_name));
        return -1;
    }
    const std::string & script_name = J->second.String();
    J = script.find("language");
    if (J == Jend || !J->second.isString()) {
        log(ERROR, compose("%1 \"%2\" script has no language.",
                           context, class_name));
        return -1;
    }
    const std::string & script_language = J->second.String();
    if (script_language != "python") {
        log(ERROR, compose("%1 \"%2\" script has unknown language \"%3\".",
                           context, class_name, script_language));
        return -1;
    }
    std::string::size_type ptr = script_name.rfind(".");
    if (ptr == std::string::npos) {
        log(ERROR, compose("%1 \"%2\" python script has bad class name \"%3\".",
                           context, class_name, script_name));
        return -1;
    }
    script_package = script_name.substr(0, ptr);
    script_class = script_name.substr(ptr + 1);

    return 0;
}