/***************************************************************************
 *   Copyright (C) 2006 by Sébastien Laot                                 *
 *   slaout@linux62.org                                                    *
 *                                                                         *
 *   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.             *
 ***************************************************************************/
#ifndef LIKEBACK_H
#define LIKEBACK_H

#include <kdialog.h>
#include <qtimer.h>

class QTextEdit;
class QToolButton;
class QPushButton;
class KProcess;
class KConfig;
class KAboutData;

/**
  * @author S�astien Laot <slaout@linux62.org>
  */
class LikeBack : public QWidget
{
  Q_OBJECT
  public:
        enum Button { ILike = 0x01, IDoNotLike = 0x02, IFoundABug = 0x04, Configure = 0x10,
                      AllButtons = ILike | IDoNotLike | IFoundABug | Configure };
        enum WindowListing { NoListing, WarnUnnamedWindows, AllWindows };
        LikeBack(Button buttons = AllButtons);
        ~LikeBack();
        static void showInformationMessage();
        static LikeBack* instance();
        static QString customLanguageMessage();
        static bool allowFeatureWishes();
        static QString  hostName();
        static QString  remotePath();
        static Q_UINT16 hostPort();
        static void setServer(QString hostName, QString remotePath, Q_UINT16 hostPort = 80);
        static void setWindowNamesListing(WindowListing windowListing);
        static void setCustomLanguageMessage(const QString &message);
        static void setAllowFeatureWishes(bool allow);
        static bool enabled();
        static void disable();
        static void enable();
        static bool userWantToParticipate(); /// << @Returns true if the user have not disabled LikeBack for this version
        static bool emailAddressAlreadyProvided();
        static QString emailAddress(); /// << @Returns the email user address, or ask it to the user if he haven't provided or ignored it
        static void setEmailAddress(const QString &address); /// << Calling emailAddress() will ask it to the user the first time
        static bool isDevelopmentVersion(const QString &version = QString::null); /// << @Returns true if version is an alpha/beta/rc/svn/cvs version. Use kapp->aboutData()->version is @p version is empty
        static void init(Button buttons = AllButtons); /// << Initialize the LikeBack system: enable it if the application version is a development one.
        static void init(bool isDevelopmentVersion, Button buttons = AllButtons);  /// << Initialize the LikeBack system: enable it if @p isDevelopmentVersion is true.
        static void init(KConfig* config, KAboutData* about, Button buttons = AllButtons);
        static QString activeWindowPath();
        static KAboutData* about();
  public slots:
        void iLike();
        void iDoNotLike();
        void iFoundABug();
        void configure();

  private slots:
        void autoMove();
        void showDialog(Button button);
        void openConfigurePopup();
        void doNotHelpAnymore();
        void showWhatsThisMessage();
        void askEMail();
//      void beginFetchingEmail();
        void endFetchingEmailFrom(); // static QString fetchingEmail();
  private:
        QTimer       m_timer;
        Button       m_buttons;
        QToolButton *m_configureButton;
        QString      m_fetchedEmail;
        KProcess    *m_process;
        static QString        s_hostName;
        static QString        s_remotePath;
        static Q_UINT16       s_hostPort;
        static QString        s_customLanguageMessage;
        static bool           s_allowFeatureWishes;
        static WindowListing  s_windowListing;
        static LikeBack      *s_instance;
        static int            s_disabledCount;
        static KConfig       *s_config;
        static KAboutData    *s_about;
};

class LikeBackDialog : public KDialog
{
  Q_OBJECT
  public:
        LikeBackDialog(LikeBack::Button reason, QString windowName, QString context);
        ~LikeBackDialog();
  private:
        LikeBack::Button  m_reason;
        QTextEdit        *m_comment;
        QPushButton      *m_sendButton;
        QString           m_windowName;
        QString           m_context;
  private slots:
        void send();
        void requestFinished(int id, bool error);
        void commentChanged();
};

#endif // LIKEBACK_H