/*
 * Copyright (C)       Kurt Granroth
 * Copyright (C) 2004, Mart Kelder (mart.kde@hccnet.nl)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

/*
 * tdeio.h -- Declaration of class KKIODrop.
 */
#ifndef KEG_TDEIODROP_H
#define KEG_TDEIODROP_H

#include "polldrop.h"

class TQWidget;
class KDropDialog;
class KornMailSubject;
class TDEProcess;
class TDEIO_Count;
class TDEIO_Protocol;
class TDEIO_Subjects;
class TDEIO_Read;
class TDEIO_Delete;
class TDEConfigGroup;
class KURL;
template<class> class TQPtrList;
template<class> class TQValueList;
namespace TDEIO { class Job; class MetaData; class Slave; class TransferJob; }

/**
 * Polling monitor for IMAP4 maildrops.
 * @author Kurt Granroth (granroth@kde.org)
 * Changes to poll with TDEIO
 * @author Mart Kelder (mart.kde@hccnet.nl)
 * $version $Id$
 */
class KKioDrop : public KPollableDrop
{
 Q_OBJECT
  
private:
	KURL *_kurl;
	TDEIO::MetaData *_metadata;

	TQString _password;
	
	bool _valid;
		
	const TDEIO_Protocol * _protocol;
	bool _ssl;
	
	TDEIO_Count *_count;
	TDEIO_Subjects *_subjects;
	TDEIO_Read *_read;
	TDEIO_Delete *_delete;

	int _readSubjectsTotalSteps;
	int _deleteMailsTotalSteps;
	//For process
	TDEProcess *_process;
	
	//List of mailurls fetched by the last time emails were counted
	struct FileInfo {
		TQString name;
		long size;
	};
	TQValueList<FileInfo> *_mailurls;
	
	/*
	 * The help-classes of this functions are friend functions, because this way, they can
	 * access the _kurl and _metadata-values without a function; and this way, no signal or
	 * public functions are neccesairy to emit a signal from KKioDrop.
	 */
	friend class TDEIO_Count;
	friend class TDEIO_Subjects;
	friend class TDEIO_Read;
	friend class TDEIO_Delete;
	friend class TDEIO_Single_Subjects;
public:
	static const char *ProtoConfigKey;
	static const char *HostConfigKey;
	static const char *PortConfigKey;
	static const char *UserConfigKey;
	static const char *MailboxConfigKey;
	static const char *PassConfigKey;
	static const char *SavePassConfigKey;
	static const char *MetadataConfigKey;

public:
	/**
	* KKioDrop Constructor
	*/
	KKioDrop();
	KKioDrop( TDEConfigGroup* );

	/** 
	  * Set the server that will be checked for new mail.
	 */
	void setKioServer( const TQString & proto, const TQString & server, int port = -1 );
	void setKioServer( const TQString & proto, const TQString & server, int port,
	                   const TDEIO::MetaData metadata, bool ssl, bool setProtocol = true ); //Last argument inits _protocol

	/** Set the account information for the PROTO server. */
	void setUser( const TQString & user, const TQString & password, const TQString & mailbox, const TQString & auth );

	// The next functions return settings
	TQString protocol() const;
	TQString server() const;
	int port() const;

	TQString user() const;
	TQString password() const;
	TQString mailbox() const;
	TQString auth() const;

	virtual void recheck();
	virtual void forceRecheck();

	virtual bool valid();

	/**
	* KKioDrop Destructor
	*/
	virtual ~KKioDrop();

	virtual bool canReadSubjects(void);
	virtual TQValueVector<KornMailSubject> * doReadSubjects(bool * stop); 
	
	virtual bool canDeleteMails();
	virtual bool deleteMails(TQPtrList<const KornMailId> * ids, bool * stop);

	virtual bool canReadMail ();
	virtual TQString readMail(const KornMailId * id, bool * stop);
	
	virtual KMailDrop* clone () const ;
	virtual bool readConfigGroup ( const TQMap< TQString, TQString >& map, const Protocol * protocol );
	virtual bool writeConfigGroup ( TDEConfigBase& cfg ) const;
	virtual TQString type() const { return TQString::fromUtf8("tdeio"); }
	
	virtual bool synchrone() const { return false; } //class is not synchrone

	//virtual void addConfigPage( KDropCfgDialog * );

	virtual bool asynchrone() const { return true; }

private:
	KKioDrop& operator = ( const KKioDrop& );
	//static void encrypt( TQString& str );
	//static void decrypt( TQString& str );

	/*
	 * The next functions are called from the help-classes (which are friend of the class).
	 * The only thing this functions do is emitting signals.
	 */
	void emitRechecked() { emit rechecked(); }
	void emitChanged( int value ) { emit changed( value, this ); }
	
	void emitReadSubjectsReady( bool success ) { emit readSubjectsReady( success ); }
	void emitReadSubjectsRead( KornMailSubject * subject ) { emit readSubject( subject ); }
	void emitReadSubjectsTotalSteps( int value ) { _readSubjectsTotalSteps = value; emit readSubjectsTotalSteps( value ); }
	void emitReadSubjectsProgress( int value ) { emit readSubjectsProgress( _readSubjectsTotalSteps - value ); }
	
	void emitReadMailReady( TQString* msg ) { emit readMailReady( msg ); }
	
	void emitDeleteMailsReady( bool value ) { emit deleteMailsReady( value ); }
	void emitDeleteMailsTotalSteps( int value ) { _deleteMailsTotalSteps = value; emit deleteMailsTotalSteps( value ); }
	void emitDeleteMailsProgress( int value ) { emit deleteMailsProgress( _deleteMailsTotalSteps - value ); }
	
	void emitShowPassivePopup( TQPtrList< KornMailSubject > *subject, int total )
			{ emit showPassivePopup( subject, total, passiveDate(), this->realName() ); }
	void emitShowPassivePopup( const TQString& error )
	                { if( passivePopup() ) { emit showPassivePopup( error, this->realName() ); } }
	void emitValidChanged() { emit validChanged( valid() ); }

private slots:
	void slotConnectionError( int, const TQString& );
	void slotConnectionWarning( const TQString& );
	void slotConnectionInfoMessage( const TQString& );
	
protected:
	//The next functions are needed for Process;
	virtual bool startProcess();
	virtual bool stopProcess();

public slots:
	virtual void readSubjectsCanceled();
	virtual void readMailCanceled();
	virtual void deleteMailsCanceled();
	
private slots:
	//For Process too
	void processExit(TDEProcess*);
	void receivedStdout( TDEProcess *, char *, int);
};
#endif // KEG_TDEIODROP_H