/*

 * Copyright (c) 2024, Lucas Chollet <lucas.chollet@serenityos.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#pragma once

#include <AK/OwnPtr.h>

#include <LibGfx/Bitmap.h>

#include <LibWeb/Bindings/PlatformObject.h>

#include <LibWeb/Bindings/Serializable.h>

#include <LibWeb/Bindings/Transferable.h>

#include <LibWeb/Forward.h>

#include <LibWeb/HTML/Canvas/CanvasDrawImage.h>

namespace Web::HTML {

using ImageBitmapSource = Variant<CanvasImageSource, JS::Handle<FileAPI::Blob>, JS::Handle<ImageData>>;

// https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#imagebitmapoptions

struct ImageBitmapOptions {

    // FIXME: Implement these fields

};

class ImageBitmap final : public Bindings::PlatformObject

    , public Web::Bindings::Serializable

    , public Web::Bindings::Transferable {

    WEB_PLATFORM_OBJECT(ImageBitmap, Bindings::PlatformObject);

    JS_DECLARE_ALLOCATOR(ImageBitmap);

public:

    static JS::NonnullGCPtr<ImageBitmap> create(JS::Realm&);

    virtual ~ImageBitmap() override = default;

    // ^Web::Bindings::Serializable

    virtual StringView interface_name() const override { return "ImageBitmap"sv; }

    virtual WebIDL::ExceptionOr<void> serialization_steps(HTML::SerializationRecord&, bool for_storage, HTML::SerializationMemory&) override;

    virtual WebIDL::ExceptionOr<void> deserialization_steps(ReadonlySpan<u32> const&, size_t& position, HTML::DeserializationMemory&) override;

    // ^Web::Bindings::Transferable

    virtual WebIDL::ExceptionOr<void> transfer_steps(HTML::TransferDataHolder&) override;

    virtual WebIDL::ExceptionOr<void> transfer_receiving_steps(HTML::TransferDataHolder&) override;

    virtual HTML::TransferType primary_interface() const override;

    WebIDL::UnsignedLong width() const;

    WebIDL::UnsignedLong height() const;

    void close();

    // Implementation specific:

    void set_bitmap(RefPtr<Gfx::Bitmap>);

    Gfx::Bitmap* bitmap() const;

private:

    explicit ImageBitmap(JS::Realm&);

    // FIXME: We don't implement this flag yet:

    // An ImageBitmap object's bitmap has an origin-clean flag, which indicates whether the bitmap is tainted by content

    // from a different origin. The flag is initially set to true and may be changed to false by the steps of

    // createImageBitmap().

    virtual void initialize(JS::Realm&) override;

    virtual void visit_edges(Cell::Visitor&) override;

    WebIDL::UnsignedLong m_width = 0;

    WebIDL::UnsignedLong m_height = 0;

    RefPtr<Gfx::Bitmap> m_bitmap { nullptr };

};

}