#pragma once

#include <ReferenceCounter.h>
#include <functional>

class Item;
class ItemType;

class ItemFilter : public virtual Framework::ReferenceCounter
{
public:
    ItemFilter();
    virtual bool matchItem( const Item *zItem ) const = 0;
};

class CombinedItemFilter : public ItemFilter
{
private:
    ItemFilter *filterA;
    ItemFilter *filterB;
    std::function<bool( bool, bool )> op;

public:
    CombinedItemFilter( ItemFilter *filterA, ItemFilter *filterB, std::function<bool( bool, bool )> op );
    bool matchItem( const Item *zItem ) const override;
};

class AnyItemFilter : public ItemFilter
{
public:
    AnyItemFilter();
    bool matchItem( const Item *zItem ) const override;
};

class TypeItemFilter : public ItemFilter
{
private:
    const ItemType *zType;

public:
    TypeItemFilter( const ItemType *zType );
    bool matchItem( const Item *zItem ) const override;
};