// Protocol_1_11.cpp

/*
Implements the 1.11 protocol classes:
	- cProtocol_1_11_0
		- release 1.11 protocol (#315)
(others may be added later in the future for the 1.11 release series)
*/

#include "Globals.h"
#include "Protocol_1_11.h"
#include "ProtocolRecognizer.h"
#include "Packetizer.h"

#include "../Root.h"
#include "../Server.h"
#include "../ClientHandle.h"
#include "../CompositeChat.h"
#include "../Bindings/PluginManager.h"
#include "../Entities/Player.h"
#include "../Mobs/Monster.h"





#define HANDLE_READ(ByteBuf, Proc, Type, Var) \
	Type Var; \
	if (!ByteBuf.Proc(Var))\
	{\
		return;\
	}





cProtocol_1_11_0::cProtocol_1_11_0(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) :
	super(a_Client, a_ServerAddress, a_ServerPort, a_State)
{
}





void cProtocol_1_11_0::SendCollectEntity(const cEntity & a_Entity, const cPlayer & a_Player, int a_Count)
{
	ASSERT(m_State == 3);  // In game mode?

	cPacketizer Pkt(*this, 0x48);  // Collect Item packet
	Pkt.WriteVarInt32(a_Entity.GetUniqueID());
	Pkt.WriteVarInt32(a_Player.GetUniqueID());
	Pkt.WriteVarInt32(static_cast<UInt32>(a_Count));
}





void cProtocol_1_11_0::SendHideTitle(void)
{
	ASSERT(m_State == 3);  // In game mode?

	cPacketizer Pkt(*this, 0x45);  // Title packet
	Pkt.WriteVarInt32(4);  // Hide title
}





void cProtocol_1_11_0::SendResetTitle(void)
{
	ASSERT(m_State == 3);  // In game mode?

	cPacketizer Pkt(*this, 0x45);  // Title packet
	Pkt.WriteVarInt32(5);  // Reset title
}





void cProtocol_1_11_0::SendSpawnMob(const cMonster & a_Mob)
{
	ASSERT(m_State == 3);  // In game mode?

	cPacketizer Pkt(*this, 0x03);  // Spawn Mob packet
	Pkt.WriteVarInt32(a_Mob.GetUniqueID());
	// TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now.
	Pkt.WriteBEUInt64(0);
	Pkt.WriteBEUInt64(a_Mob.GetUniqueID());
	Pkt.WriteVarInt32(static_cast<UInt32>(a_Mob.GetMobType()));
	Pkt.WriteBEDouble(a_Mob.GetPosX());
	Pkt.WriteBEDouble(a_Mob.GetPosY());
	Pkt.WriteBEDouble(a_Mob.GetPosZ());
	Pkt.WriteByteAngle(a_Mob.GetPitch());
	Pkt.WriteByteAngle(a_Mob.GetHeadYaw());
	Pkt.WriteByteAngle(a_Mob.GetYaw());
	Pkt.WriteBEInt16(static_cast<Int16>(a_Mob.GetSpeedX() * 400));
	Pkt.WriteBEInt16(static_cast<Int16>(a_Mob.GetSpeedY() * 400));
	Pkt.WriteBEInt16(static_cast<Int16>(a_Mob.GetSpeedZ() * 400));
	WriteEntityMetadata(Pkt, a_Mob);
	Pkt.WriteBEUInt8(0xff);  // Metadata terminator
}





void cProtocol_1_11_0::SendTitleTimes(int a_FadeInTicks, int a_DisplayTicks, int a_FadeOutTicks)
{
	ASSERT(m_State == 3);  // In game mode?

	cPacketizer Pkt(*this, 0x45);  // Title packet
	Pkt.WriteVarInt32(3);  // Set title display times
	Pkt.WriteBEInt32(a_FadeInTicks);
	Pkt.WriteBEInt32(a_DisplayTicks);
	Pkt.WriteBEInt32(a_FadeOutTicks);
}






void cProtocol_1_11_0::HandlePacketBlockPlace(cByteBuffer & a_ByteBuffer)
{
	int BlockX, BlockY, BlockZ;
	if (!a_ByteBuffer.ReadPosition64(BlockX, BlockY, BlockZ))
	{
		return;
	}

	HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Face);
	HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Hand);
	HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, CursorX);
	HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, CursorY);
	HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, CursorZ);
	m_Client->HandleRightClick(BlockX, BlockY, BlockZ, FaceIntToBlockFace(Face), FloorC(CursorX * 16), FloorC(CursorY * 16), FloorC(CursorZ * 16), m_Client->GetPlayer()->GetEquippedItem());
}





void cProtocol_1_11_0::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
{
	cServer * Server = cRoot::Get()->GetServer();
	AString ServerDescription = Server->GetDescription();
	int NumPlayers = Server->GetNumPlayers();
	int MaxPlayers = Server->GetMaxPlayers();
	AString Favicon = Server->GetFaviconData();
	cRoot::Get()->GetPluginManager()->CallHookServerPing(*m_Client, ServerDescription, NumPlayers, MaxPlayers, Favicon);

	// Version:
	Json::Value Version;
	Version["name"] = "Cuberite 1.11";
	Version["protocol"] = cProtocolRecognizer::PROTO_VERSION_1_11_0;

	// Players:
	Json::Value Players;
	Players["online"] = NumPlayers;
	Players["max"] = MaxPlayers;
	// TODO: Add "sample"

	// Description:
	Json::Value Description;
	Description["text"] = ServerDescription.c_str();

	// Create the response:
	Json::Value ResponseValue;
	ResponseValue["version"] = Version;
	ResponseValue["players"] = Players;
	ResponseValue["description"] = Description;
	if (!Favicon.empty())
	{
		ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str());
	}

	// Serialize the response into a packet:
	Json::FastWriter Writer;
	cPacketizer Pkt(*this, 0x00);  // Response packet
	Pkt.WriteString(Writer.write(ResponseValue));
}





cProtocol_1_11_1::cProtocol_1_11_1(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) :
	super(a_Client, a_ServerAddress, a_ServerPort, a_State)
{
}





void cProtocol_1_11_1::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
{
	cServer * Server = cRoot::Get()->GetServer();
	AString ServerDescription = Server->GetDescription();
	int NumPlayers = Server->GetNumPlayers();
	int MaxPlayers = Server->GetMaxPlayers();
	AString Favicon = Server->GetFaviconData();
	cRoot::Get()->GetPluginManager()->CallHookServerPing(*m_Client, ServerDescription, NumPlayers, MaxPlayers, Favicon);

	// Version:
	Json::Value Version;
	Version["name"] = "Cuberite 1.11.1";
	Version["protocol"] = cProtocolRecognizer::PROTO_VERSION_1_11_1;

	// Players:
	Json::Value Players;
	Players["online"] = NumPlayers;
	Players["max"] = MaxPlayers;
	// TODO: Add "sample"

	// Description:
	Json::Value Description;
	Description["text"] = ServerDescription.c_str();

	// Create the response:
	Json::Value ResponseValue;
	ResponseValue["version"] = Version;
	ResponseValue["players"] = Players;
	ResponseValue["description"] = Description;
	if (!Favicon.empty())
	{
		ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str());
	}

	// Serialize the response into a packet:
	Json::FastWriter Writer;
	cPacketizer Pkt(*this, 0x00);  // Response packet
	Pkt.WriteString(Writer.write(ResponseValue));
}