// Cyphesis Online RPG Server and AI Engine
// Copyright (C) 2000,2001 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 RULESETS_ENTITY_H
#define RULESETS_ENTITY_H

#include "LocatedEntity.h"

#include <iostream>
#include <unordered_map>

/// \brief This is the base class from which all in-game objects inherit.
///
/// This class should not normally be instantiated directly.
/// This class provides hard-coded attributes which are common to most
/// in game objects, the dynamic attributes map, and a means to access both
/// transparently without needing to know which are which.
/// This is now also intended to be the base for in-game persistance.
/// It implements the basic types required for persistance.
/// \ingroup EntityClasses
class Entity : public LocatedEntity {
  protected:

    /// Map of delegate properties.
    std::multimap<int, std::string> m_delegates;

    /// A static map tracking the number of existing entities per type.
    /// A monitor by the name of "entity_count{type=*}" will be created
    /// per type.
    static std::unordered_map<const TypeNode*, std::unique_ptr<int>> s_monitorsMap;

  public:
    explicit Entity(const std::string & id, long intId);
    virtual ~Entity();

    void setType(const TypeNode * t) override;

    PropertyBase * setAttr(const std::string & name, const Atlas::Message::Element &) override;
    const PropertyBase * getProperty(const std::string & name) const override;

    PropertyBase * modProperty(const std::string & name, const Atlas::Message::Element& def_val = Atlas::Message::Element()) override;
    PropertyBase * setProperty(const std::string & name, PropertyBase * prop) override;

    void addToMessage(Atlas::Message::MapType &) const override;
    void addToEntity(const Atlas::Objects::Entity::RootEntity &) const override;

    virtual void ActuateOperation(const Operation &, OpVector &);
    virtual void AppearanceOperation(const Operation &, OpVector &);
    virtual void AttackOperation(const Operation &, OpVector &);
    virtual void CombineOperation(const Operation &, OpVector &);
    virtual void CreateOperation(const Operation &, OpVector &);
    virtual void DeleteOperation(const Operation &, OpVector &);
    virtual void DisappearanceOperation(const Operation &, OpVector &);
    virtual void DivideOperation(const Operation &, OpVector &);
    virtual void EatOperation(const Operation &, OpVector &);
    virtual void GetOperation(const Operation &, OpVector &);
    virtual void ImaginaryOperation(const Operation &, OpVector &);
    virtual void InfoOperation(const Operation &, OpVector &);
    virtual void LookOperation(const Operation &, OpVector &);
    virtual void MoveOperation(const Operation &, OpVector &);
    virtual void NourishOperation(const Operation &, OpVector &);
    virtual void SetOperation(const Operation &, OpVector &);
    virtual void SightOperation(const Operation &, OpVector &);
    virtual void SoundOperation(const Operation &, OpVector &);
    virtual void TalkOperation(const Operation &, OpVector &);
    virtual void TickOperation(const Operation &, OpVector &);
    virtual void TouchOperation(const Operation &, OpVector &);
    virtual void UpdateOperation(const Operation &, OpVector &);
    virtual void UseOperation(const Operation &, OpVector &);
    virtual void WieldOperation(const Operation &, OpVector &);
    virtual void RelayOperation(const Operation &, OpVector &);

    virtual void externalOperation(const Operation & op, Link &);
    virtual void operation(const Operation &, OpVector &);

    HandlerResult callDelegate(const std::string &,
                               const Operation &,
                               OpVector &);
    void callOperation(const Operation &, OpVector &);

    void installDelegate(int, const std::string &) override;
    void removeDelegate(int, const std::string &) override;

    void addChild(LocatedEntity& childEntity) override;

    void removeChild(LocatedEntity& childEntity) override;

    void onContainered(const LocatedEntity* oldLocation) override;
    void onUpdated() override;

    void destroy() override;

    Domain * getDomain() override ;
    const Domain * getDomain() const override ;

    void sendWorld(const Operation & op) override;

    friend class Entitytest;
    friend class PropertyEntityintegration;
};

inline std::ostream & operator<<(std::ostream& s, Location& v)
{
    s << "{";
    if (v.m_loc != 0) {
        s << v.m_loc->getId();
    } else {
        s << "null";
    }
    if (v.pos().isValid()) {
        s << "," << v.pos();
        if (v.velocity().isValid()) {
            s << "," << v.velocity();
        }
    }
    return s << "}";
}

#endif // RULESETS_ENTITY_H