// *****************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under    *
// * GNU General Public License: https://www.gnu.org/licenses/gpl-3.0          *
// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
// *****************************************************************************

#ifndef ICON_BUFFER_H_8425703245726394256
#define ICON_BUFFER_H_8425703245726394256

#include <vector>
#include <memory>
#include <zen/zstring.h>
#include <wx/image.h>
#include "afs/abstract.h"


namespace fff
{
class IconBuffer
{
public:
    enum class IconSize
    {
        small,
        medium,
        large
    };

    explicit IconBuffer(IconSize sz);
    ~IconBuffer();

    static int getPixSize(IconSize sz); //expected and *maximum* icon size in pixel
    int getPixSize() const { return getPixSize(iconSizeType_); } //

    void                   setWorkload      (const std::vector<AbstractPath>& load); //(re-)set new workload of icons to be retrieved;
    bool                   readyForRetrieval(const AbstractPath& filePath);
    std::optional<wxImage> retrieveFileIcon (const AbstractPath& filePath); //... and mark as hot
    wxImage getIconByExtension(const Zstring& filePath); //...and add to buffer
    //retrieveFileIcon() + getIconByExtension() are safe to call from within WM_PAINT handler! no COM calls (...on calling thread)

    static wxImage genericFileIcon (IconSize sz);
    static wxImage genericDirIcon  (IconSize sz);
    static wxImage linkOverlayIcon (IconSize sz);
    static wxImage plusOverlayIcon (IconSize sz);
    static wxImage minusOverlayIcon(IconSize sz);

private:
    struct Impl;
    const std::unique_ptr<Impl> pimpl_;

    const IconSize iconSizeType_;
};

bool hasLinkExtension(const Zstring& filepath);
}

#endif //ICON_BUFFER_H_8425703245726394256