/*
 * Copyright (C) 2010 Stephan Aßmus <superstippi@gmx.de>
 *
 * All rights reserved. Distributed under the terms of the MIT License.
 */
#ifndef DOWNLOAD_PROGRESS_VIEW_H
#define DOWNLOAD_PROGRESS_VIEW_H


#include <GroupView.h>
#include <Path.h>
#include <String.h>
#include <shared/BarberPole.h>


class BEntry;
class BStatusBar;
class BStringView;
class BWebDownload;
class IconView;
class SmallButton;


enum {
        SAVE_SETTINGS = 'svst'
};


class DownloadProgressView : public BGroupView {
public:
                                                                DownloadProgressView(BWebDownload* download);
                                                                DownloadProgressView(const BMessage* archive);

                        bool                            Init(BMessage* archive = NULL);

                        status_t                        SaveSettings(BMessage* archive);
        virtual void                            AttachedToWindow();
        virtual void                            DetachedFromWindow();
        virtual void                            AllAttached();

        virtual void                            Draw(BRect updateRect);

        virtual void                            MessageReceived(BMessage* message);

                        void                            ShowContextMenu(BPoint screenWhere);

                        BWebDownload*           Download() const;
                        const BString&          URL() const;
                        bool                            IsMissing() const;
                        bool                            IsFinished() const;

                        void                            DownloadFinished();
                        void                            CancelDownload();

        static  void                            SpeedVersusEstimatedFinishTogglePulse();

private:
                        void                            _UpdateStatus(off_t currentSize,
                                                                        off_t expectedSize);
                        void                            _UpdateStatusText();
                        void                            _StartNodeMonitor(const BEntry& entry);
                        void                            _StopNodeMonitor();

private:
                        IconView*                       fIconView;
                        BStatusBar*                     fStatusBar;
                        BarberPole*                     fBarberPole;
                        BStringView*            fFileNameView;
                        BStringView*            fInfoView;
                        SmallButton*            fTopButton;
                        SmallButton*            fBottomButton;
                        BWebDownload*           fDownload;
                        BString                         fURL;
                        BPath                           fPath;

                        off_t                           fCurrentSize;
                        off_t                           fExpectedSize;
                        off_t                           fLastSpeedReferenceSize;
                        off_t                           fEstimatedFinishReferenceSize;
                        bigtime_t                       fLastUpdateTime;
                        bigtime_t                       fLastSpeedReferenceTime;
                        bigtime_t                       fProcessStartTime;
                        bigtime_t                       fLastSpeedUpdateTime;
                        bigtime_t                       fEstimatedFinishReferenceTime;
        static  const size_t            kBytesPerSecondSlots = 10;
                        size_t                          fCurrentBytesPerSecondSlot;
                        double                          fBytesPerSecondSlot[kBytesPerSecondSlots];
                        double                          fBytesPerSecond;

        static  bigtime_t                       sLastEstimatedFinishSpeedToggleTime;
        static  bool                            sShowSpeed;
};

#endif // DOWNLOAD_PROGRESS_VIEW_H