#ifndef __CLIENT_H__
#define __CLIENT_H__


#include "../global.h"
#include <boost/thread.hpp>
#include "../lib/IGameCallback.h"
#include "../lib/CondSh.h"
#include <queue>

/*
 * Client.h, part of VCMI engine
 *
 * Authors: listed in file AUTHORS in main folder
 *
 * License: GNU General Public License v2.0 or later
 * Full text of license available in license.txt file, in main folder
 *
 */

class CBattleGameInterface;
struct StartInfo;
class CGameState;
class CGameInterface;
class CConnection;
class CCallback;
struct BattleAction;
struct SharedMem;
class CClient;
struct CPathsInfo;
namespace boost { class thread; }

void processCommand(const std::string &message, CClient *&client);

//structure to handle running server and connecting to it
class CServerHandler
{
private:
	void callServer(); //calls server via system(), should be called as thread
public:
	timeHandler th;
	boost::thread *serverThread; //thread that called system to run server
	SharedMem *shared; //interprocess memory (for waiting for server)
	bool verbose; //whether to print log msgs
	std::string port; //port number in text form

	//functions setting up local server
	void startServer(); //creates a thread with callServer
	void waitForServer(); //waits till server is ready
	CConnection * connectToServer(); //connects to server

	//////////////////////////////////////////////////////////////////////////
	static CConnection * justConnectToServer(const std::string &host = "", const std::string &port = ""); //connects to given host without taking any other actions (like setting up server)

	CServerHandler(bool runServer = false);
	~CServerHandler();
};

class CClient : public IGameCallback
{
public:
	CCallback *cb;
	std::set<CCallback*> callbacks; //callbacks given to player interfaces
	std::map<ui8,CGameInterface *> playerint;
	std::map<ui8,CBattleGameInterface *> battleints;
	bool hotSeat;
	CConnection *serv;
	BattleAction *curbaction;
	CPathsInfo *pathInfo;

	CondSh<bool> waitingRequest;

	std::queue<CPack *> packs;
	boost::mutex packsM;

	void waitForMoveAndSend(int color);
	//void sendRequest(const CPackForServer *request, bool waitForRealization);
	CClient(void);
	CClient(CConnection *con, StartInfo *si);
	~CClient(void);

	void init();
	void newGame(CConnection *con, StartInfo *si); //con - connection to server
	void endGame(bool closeConnection = true);
	void stopConnection();
	void save(const std::string & fname);
	void loadGame(const std::string & fname);
	void run();
	void finishCampaign( CCampaignState * camp );
	void proposeNextMission( CCampaignState * camp );

	bool terminate;	// tell to terminate
	boost::thread *connectionHandler; //thread running run() method

	//////////////////////////////////////////////////////////////////////////
	//from IGameCallback
	int getCurrentPlayer();
	int getSelectedHero();

	//not working yet, will be implement somewhen later with support for local-sim-based gameplay
	void changeSpells(int hid, bool give, const std::set<ui32> &spells){};
	bool removeObject(int objid){return false;};
	void setBlockVis(int objid, bool bv){};
	void setOwner(int objid, ui8 owner){};
	void setHoverName(int objid, MetaString * name){};
	void setObjProperty(int objid, int prop, si64 val){};
	void changePrimSkill(int ID, int which, si64 val, bool abs=false){};
	void changeSecSkill(int ID, int which, int val, bool abs=false){}; 
	void showInfoDialog(InfoWindow *iw){};
	void showBlockingDialog(BlockingDialog *iw, const CFunctionList<void(ui32)> &callback){};
	ui32 showBlockingDialog(BlockingDialog *iw){return 0;}; //synchronous version of above
	void showGarrisonDialog(int upobj, int hid, bool removableUnits, const boost::function<void()> &cb){};
	void showThievesGuildWindow(int requestingObjId){};
	void giveResource(int player, int which, int val){};

	void giveCreatures (const CArmedInstance * objid, const CGHeroInstance * h, const CCreatureSet &creatures, bool remove) {};
	void takeCreatures (int objid, TSlots creatures){};
	void takeCreatures (int objid, std::vector<CStackBasicDescriptor> creatures){};
	bool changeStackType(const StackLocation &sl, CCreature *c){return false;};
	bool changeStackCount(const StackLocation &sl, TQuantity count, bool absoluteValue = false){return false;};
	bool insertNewStack(const StackLocation &sl, const CCreature *c, TQuantity count){return false;};
	bool eraseStack(const StackLocation &sl, bool forceRemoval = false){return false;};
	bool swapStacks(const StackLocation &sl1, const StackLocation &sl2){return false;}
	bool addToSlot(const StackLocation &sl, const CCreature *c, TQuantity count){return false;}
	void tryJoiningArmy(const CArmedInstance *src, const CArmedInstance *dst, bool removeObjWhenFinished, bool allowMerging){}
	bool moveStack(const StackLocation &src, const StackLocation &dst, TQuantity count = -1){return false;}

	void giveHeroNewArtifact(const CGHeroInstance *h, const CArtifact *artType, int pos) OVERRIDE {};
	void giveHeroArtifact(const CGHeroInstance *h, const CArtifactInstance *a, int pos) OVERRIDE {};
	void putArtifact(const ArtifactLocation &al, const CArtifactInstance *a) OVERRIDE {}; 
	void removeArtifact(const ArtifactLocation &al) OVERRIDE {};
	void moveArtifact(const ArtifactLocation &al1, const ArtifactLocation &al2) OVERRIDE {};

	void showCompInfo(ShowInInfobox * comp){};
	void heroVisitCastle(int obj, int heroID){};
	void stopHeroVisitCastle(int obj, int heroID){};
	//void giveHeroArtifact(int artid, int hid, int position){}; 
	//void giveNewArtifact(int hid, int position){};
	bool removeArtifact(const CArtifact* art, int hid){return false;};
	void startBattleI(const CArmedInstance *army1, const CArmedInstance *army2, int3 tile, const CGHeroInstance *hero1, const CGHeroInstance *hero2, bool creatureBank = false, boost::function<void(BattleResult*)> cb = 0, const CGTownInstance *town = NULL){}; //use hero=NULL for no hero
	void startBattleI(const CArmedInstance *army1, const CArmedInstance *army2, int3 tile, boost::function<void(BattleResult*)> cb = 0, bool creatureBank = false){}; //if any of armies is hero, hero will be used
	void startBattleI(const CArmedInstance *army1, const CArmedInstance *army2, boost::function<void(BattleResult*)> cb = 0, bool creatureBank = false){}; //if any of armies is hero, hero will be used, visitable tile of second obj is place of battle
	void setAmount(int objid, ui32 val){};
	bool moveHero(si32 hid, int3 dst, ui8 instant, ui8 asker = 255){return false;};
	void giveHeroBonus(GiveBonus * bonus){};
	void setMovePoints(SetMovePoints * smp){};
	void setManaPoints(int hid, int val){};
	void giveHero(int id, int player){};
	void changeObjPos(int objid, int3 newPos, ui8 flags){};
	void sendAndApply(CPackForClient * info){};
	void heroExchange(si32 hero1, si32 hero2){};

	//////////////////////////////////////////////////////////////////////////
	friend class CCallback; //handling players actions
	friend void processCommand(const std::string &message, CClient *&client); //handling console
	
	void handlePack( CPack * pack ); //applies the given pack and deletes it
	void updatePaths();
	void battleStarted(const BattleInfo * info);

	//////////////////////////////////////////////////////////////////////////

	template <typename Handler> void serialize(Handler &h, const int version);
};

#endif // __CLIENT_H__