/*
 * Copyright 2002, The Olmeki Team.
 * Distributed under the terms of the Olmeki License.
 */

#ifndef _JABBER_HANDLER_H
#define _JABBER_HANDLER_H

#include <list>

#include <String.h>

#include "ObjectList.h"

#include <expat.h>

#include "JabberAgent.h"
#include "JabberContact.h"
#include "JabberElement.h"
#include "JabberMessage.h"
#include "JabberPresence.h"
#include "JabberRegistration.h"
#include "JabberVCard.h"
#include "JabberPlug.h"

class VCardManager;

class JabberHandler {
public:
								JabberHandler(const BString & name, JabberPlug*);
	virtual 					~JabberHandler();
			void						Dispose();			
			void 						LogOn();
			void 						LogOff();

			//void 						Register();
			void 						Register(JabberRegistration * registration);
			void 						Register(JabberAgent * agent);

			BString 					GetName() const;

			void 						SetHost(const BString & host);
			void 						SetUsername(const BString & username);
			void 						SetPassword(const BString & password);
			void 						SetPort(int32 port);
			void 						SetPriority(int32 priority);
			void 						SetResource(const BString & resource);

			void 						UpdateJid();
			BString 					GetJid() const;

			bool						IsAuthorized();
			void 						RemoveContact(const JabberContact * contact);

			int32 						ReceivedData(const char *,int32);

protected: 
	typedef BObjectList<JabberElement> ElementList;
	typedef std::list<BString> StrList;
	typedef BObjectList<JabberContact> RosterList;
	typedef BObjectList<JabberAgent> AgentList;

			bool 						SendMessage(JabberMessage & message);

			void						SetOwnNickname(const BString& nick);

			bool 						StartComposingMessage(JabberContact * contact);
			bool 						StopComposingMessage(JabberContact * contact);

			void 						SetStatus(int32 status, const BString & message);

			void 						TimeStamp(JabberMessage & message);

			void 						AddContact(const BString & name, const BString & jid, const BString & group);
			void 						AcceptSubscription(const BString & jid);
			void 						UpdateRoster(JabberPresence * presence);

			// The JabberHandler takes ownership of the contact
			void 						UpdateRoster(JabberContact * contact);
			// by xeD
			RosterList*					getRosterList(){ return fRoster; };

			//Callbacks
		virtual void 				Authorized();
		virtual void 				Message(JabberMessage * message)=0; 
		virtual void 				Presence(JabberPresence * presence) =0;
		virtual void 				Roster(RosterList * roster) =0;
		virtual void 				Agents(AgentList * agents) =0;
		virtual void 				Disconnected(const BString & reason) = 0;
		virtual void 				SubscriptionRequest(JabberPresence * presence) = 0;
		virtual void 				Registration(JabberRegistration * registration) = 0;
		virtual	void				Unsubscribe(JabberPresence * presence) = 0;
		virtual	void				OwnContactInfo(JabberContact* contact) = 0;
protected:
friend class VCardManager;		
		virtual void				GotBuddyPhoto(const BString & jid, const BString & imagePath) = 0;

private:
	enum ID { 
		AUTH = 0, 
		ROSTER = 2
	};
	
				BString 					fHost;
				BString 					fUsername;
				BString 					fJid;
				BString 					fPassword;
				int32 						fPort;
				BString 					fResource;
				int32 						fPriority;

				ElementList*				fElementStack;
				StrList*					fNsStack;
				StrList*					fTypeStack;
				StrList*					fFromStack;
				RosterList*					fRoster;
				AgentList*					fAgents;

				int32 						fSocket;
				JabberPlug*					fPlug;

				XML_Parser 					fParser;
				bool 						fAuthorized;
				
				VCardManager*				fVCardManager;
				
				BString						fCurrentPresenceId;
				BString						fLastAuthId;
				int32						fIncrementalId;

//protected:
public:
//friend class VCardManager;
				void						RequestVCard(const BString & jid);					
				
protected:
				void 						Send(const BString & xml);
				void 						Authorize();
				bool 						BeginSession();
				void 						EndSession();
				void 						SendVersion();
				void 						RequestRoster();
				void 						RequestAgents();
				void						RequestSelfVCard();
				void						RequestVCard(JabberContact* contact);

				JabberMessage* 				BuildMessage();
				JabberPresence* 			BuildPresence();
				RosterList *				BuildRoster();
				AgentList * 				BuildAgents();
				JabberRegistration* 		BuildRegistration();
				JabberVCard*				BuildVCard(const BString& from);

				//int32 					GetConnection();
				const JabberAgent*	 		IsAgent(const BString & jid);
				const char* 				HasAttribute(const char* name, const char** attributes, int32 count);
				const char* 				HasAttribute(const char* name, const char** attributes);

				void 						StripResource(BString & jid);
				BString 					TwoDigit(int32, BString &);

				static void StartElement(void* pUserData, const char* pName, const char** pAttr);
				static void EndElement(void* pUserData, const char* pName);
				static void Characters(void* pUserData, const char* pString, int pLen);

private:
				void	CleanUpEnvirorment();

};

#endif	// _JABBER_HANDLER_H