// 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


#ifndef SERVER_ENTITY_RULE_HANDLER_H
#define SERVER_ENTITY_RULE_HANDLER_H

#include "RuleHandler.h"
#include <string>
#include <map>
#include <functional>

class EntityBuilder;

class EntityKit;

class EntityFactoryBase;

/// \brief Handle processing and updating of entity type rules
class EntityRuleHandler : public RuleHandler
{
    protected:
        EntityBuilder& m_builder;
        const PropertyManager<LocatedEntity>& m_propertyManager;

        int populateEntityFactory(const std::string& class_name,
                                  EntityFactoryBase* factory,
                                  const Atlas::Message::MapType& class_desc,
                                  std::string& dependent,
                                  std::string& reason);

        int installEntityClass(const std::string& class_name,
                               const std::string& parent,
                               const Atlas::Objects::Root& class_desc,
                               std::string& dependent,
                               std::string& reason,
                               std::map<const TypeNode<LocatedEntity>*, TypeNode<LocatedEntity>::PropertiesUpdate>& changes);

        int installEntityClass(const std::string& class_name,
                               const std::string& parent,
                               const Atlas::Objects::Root& class_desc,
                               std::string& dependent,
                               std::string& reason,
                               std::unique_ptr<EntityFactoryBase> factory,
                               std::map<const TypeNode<LocatedEntity>*, TypeNode<LocatedEntity>::PropertiesUpdate>& changes);

        int modifyEntityClass(const std::string& class_name,
                              const Atlas::Objects::Root& class_desc,
                              std::map<const TypeNode<LocatedEntity>*, TypeNode<LocatedEntity>::PropertiesUpdate>& changes);

        std::map<std::string, std::function<std::unique_ptr<EntityFactoryBase>(EntityFactoryBase*)>> mFactories;

    public:
        explicit EntityRuleHandler(EntityBuilder& eb, const PropertyManager<LocatedEntity>& propertyManager);

        int check(const Atlas::Objects::Root& desc) override;

        int install(const std::string& class_name,
                    const std::string& parent,
                    const Atlas::Objects::Root& desc,
                    std::string& dependent,
                    std::string& reason,
                    std::map<const TypeNode<LocatedEntity>*, TypeNode<LocatedEntity>::PropertiesUpdate>& changes) override;

        int update(const std::string& name,
                   const Atlas::Objects::Root& desc,
                   std::map<const TypeNode<LocatedEntity>*, TypeNode<LocatedEntity>::PropertiesUpdate>& changes) override;


};

#endif // SERVER_ENTITY_RULE_HANDLER_H
