#pragma once

#include "BlockType.h"
#include "ReferenceCounter.h"
#include "Item.h"
#include "Inventory.h"
#include "NetworkMessage.h"

#include <Trie.h>
#include <Vec3.h>
#include <Either.h>
#include <VecN.h>

#define CONST_BLOCK(maybeBlock, type) (maybeBlock ? maybeBlock : StaticRegistry<BlockType>::INSTANCE.zElement((int)type)->zDefault())

class ItemType;
class Chunk;
class BasicBlockItemType;

class TickQueue;

class Block : public Inventory
{
private:
	int ticksLeftCounter;
	int currentTickTimeout;
	bool wasTicked;
	bool onTickCalled;
	int dimensionId;

protected:
	bool transparent;
	bool passable;
	float hp;
	float maxHP;
	float hardness;
	const BlockType* zType;
	ItemType* zTool;
	float speedModifier;
	Block* zNeighbours[6];
	int neighbourTypes[6];

	int minTickTimeout;
	int maxTickTimeout;
	bool tickSource;
	bool interactable;
	bool transmissionRequested;
	bool deadAndRemoved;
	unsigned char lightEmisionColor[3];

	/// <summary>
	/// executes block specific things
	/// </summary>
	/// <param name="zqueue">a queue to add neighbor blocks that should be ticked after this block</param>
	/// <param name="numTicks">the number of ticks passed since the last call (only for tickSources)</param>
	/// <param name="blocked">can be set to one to tell that this block needs to be tickt again later in the queue of this tick</param>
	/// <returns>true, iff the block needs to be ticked more often</returns>
	virtual bool onTick(TickQueue* zQueue, int numTicks, bool& blocked) = 0;
	/// <summary>
	/// gets called after each block was tickt.
	/// the order of blocks called will be exactly the same as onTick
	/// </summary>
	virtual void onPostTick() = 0;
	virtual void onDestroy();

public:
	Block(const BlockType* zType, ItemType* zTool, Framework::Vec3<int> pos, bool hasInventory);
	virtual ~Block();

	void tick(TickQueue* zQueue);
	void postTick();
	void setDimensionId(int id);
	virtual void setNeighbour(Direction dir, Framework::Either<Block*, int> neighbor);
	virtual void setNeighbourBlock(Direction dir, Block* zN);
	virtual void setNeighbourType(Direction dir, int type);

	void api(Framework::StreamReader* zRequest, NetworkMessage* zResponse);

	bool isTickSource() const;
	const BlockType* zBlockType() const;
	bool isTransparent() const;
	bool isPassable() const;
	bool isInteractable() const;
	float getHP() const;
	float getMaxHP() const;
	float getHardness() const;
	ItemType* zEffectiveTool() const;
	float getSpeedModifier() const;
	const Framework::Vec3<int> getPos() const;
	int getDimensionId() const;
	bool isVisible() const;
	void setHP(float hp);
	bool isDeadAndRemoved() const;
	const unsigned char* getLightEmisionColor() const;
	virtual void filterPassingLight(unsigned char rgb[3]) const;

	friend BlockType;
};

class BasicBlockItem : public Item
{
protected:
	bool transparent;
	bool passable;
	float hardness;
	int toolId;
	float speedModifier;
	bool interactable;

public:
	BasicBlockItem(const ItemType* zType, const BlockType* zPlacedBlockType, const char* name);
	virtual bool canBeStackedWith(const Item* zItem) const override;

	friend BasicBlockItemType;
	friend BlockType;
};

class BasicBlockItemType : public ItemType
{
protected:
	BasicBlockItemType(int id, const char* name, ItemSkillLevelUpRule* levelUpRule, const ItemType* zBrokenType, ModelInfo model);
	virtual void loadSuperItem(Item* zItem, Framework::StreamReader* zReader) const override;
	virtual void saveSuperItem(const Item* zItem, Framework::StreamWriter* zWriter) const override;
	void initializeItem(BasicBlockItem* zItem, bool transparent, bool passable, float hardness, int toolId, float speedModifier) const;
};