#include <InMemoryBuffer.h>

#include "ItemType.h"
#include "ItemSkill.h"
#include "ItemStack.h"

ItemType::ItemType( int id, ItemSkillLevelUpRule *levelUpRule, const ItemType *zBrokenType )
    : ReferenceCounter(),
    id( id ),
    levelUpRule( levelUpRule ),
    zBrokenType( zBrokenType )
{
    StaticRegistry<ItemType>::INSTANCE.registerT( this, id );
}

ItemType::~ItemType()
{
    if( levelUpRule )
        levelUpRule->release();
}

void ItemType::loadSuperItem( Item *zItem, Framework::Reader *zReader ) const
{
    zReader->lese( (char *)&zItem->damage, 4 );
    zReader->lese( (char *)&zItem->maxDamage, 4 );
    zReader->lese( (char *)&zItem->durability, 4 );
    zReader->lese( (char *)&zItem->maxDurability, 4 );
    unsigned char flags = 0;
    zReader->lese( (char *)&flags, 1 );
    zItem->eatable = ( flags | 1 ) == flags;
    zItem->placeable = ( flags | 2 ) == flags;
    zItem->equippable = ( flags | 4 ) == flags;
    zItem->solid = ( flags | 8 ) == flags;
    zItem->usable = ( flags | 16 ) == flags;
    zReader->lese( (char *)&zItem->maxStackSize, 1 );
    unsigned char len = 0;
    zReader->lese( (char *)&len, 1 );
    zItem->name.fillText( ' ', len );
    zReader->lese( zItem->name, len );
}

void ItemType::saveSuperItem( Item *zItem, Framework::Writer *zWriter ) const
{
    zWriter->schreibe( (char *)&zItem->damage, 4 );
    zWriter->schreibe( (char *)&zItem->maxDamage, 4 );
    zWriter->schreibe( (char *)&zItem->durability, 4 );
    zWriter->schreibe( (char *)&zItem->maxDurability, 4 );
    unsigned char flags = (unsigned char)( ( ( ( ( zItem->usable << 1 ) | zItem->solid << 1 ) | zItem->equippable << 1 ) | zItem->placeable << 1 ) | zItem->eatable );
    zWriter->schreibe( (char *)&flags, 1 );
    zWriter->schreibe( (char *)&zItem->maxStackSize, 1 );
    unsigned char len = (unsigned char)zItem->name.getLength();
    zWriter->schreibe( (char *)&len, 1 );
    zWriter->schreibe( zItem->name, len );
}

int ItemType::getId() const
{
    return id;
}

const ItemType *ItemType::zBrokenItemType() const
{
    return zBrokenType;
}

ItemStack *ItemType::createItemStack( int size ) const
{
    Item *item = createItem();
    if( !item )
        return 0;
    return new ItemStack( item, MIN( size, item->getMaxStackSize() ) );
}

ItemSkill *ItemType::createDefaultItemSkill() const
{
    return 0;
}

void ItemType::levelUpItemSkill( ItemSkill *zSkill ) const
{
    if( levelUpRule )
        levelUpRule->applyOn( zSkill );
}

Item *ItemType::loadItem( Framework::Reader *zReader ) const
{
    Item *item = createItem();
    loadSuperItem( item, zReader );
    return item;
}

void ItemType::saveItem( Item *zItem, Framework::Writer *zWriter ) const
{
    saveSuperItem( zItem, zWriter );
}

Item *ItemType::cloneItem( Item *zItem ) const
{
    Framework::InMemoryBuffer buffer;
    saveItem( zItem, &buffer );
    return loadItem( &buffer );
}