/**
 * @file llfloatersnapshot.h
 * @brief Snapshot preview window, allowing saving, e-mailing, etc.
 *
 * $LicenseInfo:firstyear=2004&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2016, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LL_LLFLOATERSNAPSHOT_H
#define LL_LLFLOATERSNAPSHOT_H

#include "llagent.h"
#include "llfloater.h"
#include "llpanelsnapshot.h"
#include "llsnapshotmodel.h"

class LLSpinCtrl;
class LLSnapshotLivePreview;
class LLToolset;

class LLFloaterSnapshotBase : public LLFloater
{
    LOG_CLASS(LLFloaterSnapshotBase);

public:

    LLFloaterSnapshotBase(const LLSD& key);
    virtual ~LLFloaterSnapshotBase();

    /*virtual*/ void draw();
    /*virtual*/ void onClose(bool app_quitting);
    virtual S32 notify(const LLSD& info);

    // TODO: create a snapshot model instead
    virtual void saveTexture() = 0;
    void postSave();
    virtual void postPanelSwitch();
    LLPointer<LLImageFormatted> getImageData();
    LLSnapshotLivePreview* getPreviewView();
    const LLVector3d& getPosTakenGlobal();

    const LLRect& getThumbnailPlaceholderRect() { return mThumbnailPlaceholder->getRect(); }

    void setRefreshLabelVisible(bool value) { if (mRefreshLabel) mRefreshLabel->setVisible(value); }
    void setSuccessLabelPanelVisible(bool value) { if (mSucceessLblPanel) mSucceessLblPanel->setVisible(value); }
    void setFailureLabelPanelVisible(bool value) { if (mFailureLblPanel) mFailureLblPanel->setVisible(value); }
    void inventorySaveFailed();

    class ImplBase;
    friend class ImplBase;
    ImplBase* impl;

protected:
    LLUICtrl* mThumbnailPlaceholder;
    LLUICtrl *mRefreshBtn, *mRefreshLabel;
    LLUICtrl *mSucceessLblPanel, *mFailureLblPanel;
    LLUICtrl* mFreezeFrameCheck = nullptr;
};

class LLFloaterSnapshotBase::ImplBase
{
public:
    typedef enum e_status
    {
        STATUS_READY,
        STATUS_WORKING,
        STATUS_FINISHED
    } EStatus;

    ImplBase(LLFloaterSnapshotBase* floater) : mAvatarPauseHandles(),
        mLastToolset(NULL),
        mAspectRatioCheckOff(false),
        mNeedRefresh(false),
        mSkipReshaping(false),
        mStatus(STATUS_READY),
        mFloater(floater)
    {}
    virtual ~ImplBase()
    {
        //unpause avatars
        mAvatarPauseHandles.clear();
    }

    static void onClickNewSnapshot(void* data);
    static void onClickAutoSnap(LLUICtrl *ctrl, void* data);
    static void onClickNoPost(LLUICtrl *ctrl, void* data);
    static void onClickFilter(LLUICtrl *ctrl, void* data);
    static void onClickUICheck(LLUICtrl *ctrl, void* data);
    static void onClickHUDCheck(LLUICtrl *ctrl, void* data);
    static void onCommitFreezeFrame(LLUICtrl* ctrl, void* data);

    virtual LLPanelSnapshot* getActivePanel(LLFloaterSnapshotBase* floater, bool ok_if_not_found = true) = 0;
    virtual LLSnapshotModel::ESnapshotType getActiveSnapshotType(LLFloaterSnapshotBase* floater);
    virtual LLSnapshotModel::ESnapshotFormat getImageFormat(LLFloaterSnapshotBase* floater) = 0;
    virtual std::string getSnapshotPanelPrefix() = 0;

    LLSnapshotLivePreview* getPreviewView();
    virtual void updateControls(LLFloaterSnapshotBase* floater) = 0;
    virtual void updateLayout(LLFloaterSnapshotBase* floater);
    virtual void updateLivePreview();
    virtual void setStatus(EStatus status, bool ok = true, const std::string& msg = LLStringUtil::null);
    virtual EStatus getStatus() const { return mStatus; }
    virtual void setNeedRefresh(bool need);

    static bool updatePreviewList(bool initialized);

    void setAdvanced(bool advanced) { mAdvanced = advanced; }
    void setSkipReshaping(bool skip) { mSkipReshaping = skip; }

    virtual LLSnapshotModel::ESnapshotLayerType getLayerType(LLFloaterSnapshotBase* floater) = 0;
    virtual void checkAutoSnapshot(LLSnapshotLivePreview* floater, bool update_thumbnail = false);
    void setWorking(bool working);
    virtual void setFinished(bool finished, bool ok = true, const std::string& msg = LLStringUtil::null) = 0;

public:
    LLFloaterSnapshotBase* mFloater;
    std::vector<LLAnimPauseRequest> mAvatarPauseHandles;

    LLToolset*  mLastToolset;
    LLHandle<LLView> mPreviewHandle;
    bool mAspectRatioCheckOff;
    bool mNeedRefresh;
    bool mAdvanced;
    bool mSkipReshaping;
    EStatus mStatus;
};

class LLFloaterSnapshot : public LLFloaterSnapshotBase
{
    LOG_CLASS(LLFloaterSnapshot);

public:
    LLFloaterSnapshot(const LLSD& key);
    /*virtual*/ ~LLFloaterSnapshot();

    /*virtual*/ bool postBuild();
    /*virtual*/ void onOpen(const LLSD& key);
    /*virtual*/ S32 notify(const LLSD& info);

    static void update();

    void onExtendFloater();
    void on360Snapshot();

    static LLFloaterSnapshot* getInstance();
    static LLFloaterSnapshot* findInstance();
    /*virtual*/ void saveTexture();

    typedef boost::signals2::signal<void(void)> snapshot_saved_signal_t;
    void saveLocal(const snapshot_saved_signal_t::slot_type& success_cb, const snapshot_saved_signal_t::slot_type& failure_cb);
    static void setAgentEmail(const std::string& email);

    bool isWaitingState();

    class Impl;
    friend class Impl;
};

///----------------------------------------------------------------------------
/// Class LLFloaterSnapshot::Impl
///----------------------------------------------------------------------------

class LLFloaterSnapshot::Impl : public LLFloaterSnapshotBase::ImplBase
{
    LOG_CLASS(LLFloaterSnapshot::Impl);
public:
    Impl(LLFloaterSnapshotBase* floater)
        : LLFloaterSnapshotBase::ImplBase(floater)
    {}
    ~Impl()
    {}

    void applyKeepAspectCheck(LLFloaterSnapshotBase* view, bool checked);
    void updateResolution(LLUICtrl* ctrl, void* data, bool do_update = true);
    static void onCommitLayerTypes(LLUICtrl* ctrl, void*data);
    void onImageQualityChange(LLFloaterSnapshotBase* view, S32 quality_val);
    void onImageFormatChange(LLFloaterSnapshotBase* view);
    void applyCustomResolution(LLFloaterSnapshotBase* view, S32 w, S32 h);
    static void onSendingPostcardFinished(LLFloaterSnapshotBase* floater, bool status);
    bool checkImageSize(LLSnapshotLivePreview* previewp, S32& width, S32& height, bool isWidthChanged, S32 max_value);
    void setImageSizeSpinnersValues(LLFloaterSnapshotBase *view, S32 width, S32 height);
    void updateSpinners(LLFloaterSnapshotBase* view, LLSnapshotLivePreview* previewp, S32& width, S32& height, bool is_width_changed);
    static void onSnapshotUploadFinished(LLFloaterSnapshotBase* floater, bool status);

    /*virtual*/ LLPanelSnapshot* getActivePanel(LLFloaterSnapshotBase* floater, bool ok_if_not_found = true);
    /*virtual*/ LLSnapshotModel::ESnapshotFormat getImageFormat(LLFloaterSnapshotBase* floater);
    LLSpinCtrl* getWidthSpinner(LLFloaterSnapshotBase* floater);
    LLSpinCtrl* getHeightSpinner(LLFloaterSnapshotBase* floater);
    void enableAspectRatioCheckbox(LLFloaterSnapshotBase* floater, bool enable);
    void setAspectRatioCheckboxValue(LLFloaterSnapshotBase* floater, bool checked);
    /*virtual*/ std::string getSnapshotPanelPrefix();

    void setResolution(LLFloaterSnapshotBase* floater, const std::string& comboname);
    /*virtual*/ void updateControls(LLFloaterSnapshotBase* floater);

private:
    /*virtual*/ LLSnapshotModel::ESnapshotLayerType getLayerType(LLFloaterSnapshotBase* floater);
    void comboSetCustom(LLFloaterSnapshotBase *floater, const std::string& comboname);
    void checkAspectRatio(LLFloaterSnapshotBase *view, S32 index);
    void setFinished(bool finished, bool ok = true, const std::string& msg = LLStringUtil::null);
};

class LLSnapshotFloaterView : public LLFloaterView
{
public:
    struct Params
    :   public LLInitParam::Block<Params, LLFloaterView::Params>
    {
    };

protected:
    LLSnapshotFloaterView (const Params& p);
    friend class LLUICtrlFactory;

public:
    virtual ~LLSnapshotFloaterView();

    /*virtual*/ bool handleKey(KEY key, MASK mask, bool called_from_parent);
    /*virtual*/ bool handleMouseDown(S32 x, S32 y, MASK mask);
    /*virtual*/ bool handleMouseUp(S32 x, S32 y, MASK mask);
    /*virtual*/ bool handleHover(S32 x, S32 y, MASK mask);
};

extern LLSnapshotFloaterView* gSnapshotFloaterView;

#endif // LL_LLFLOATERSNAPSHOT_H