/*

 * Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>

 *

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

 */

#pragma once

#include <LibWeb/Bindings/GainNodePrototype.h>

#include <LibWeb/WebAudio/AudioNode.h>

namespace Web::WebAudio {

// https://webaudio.github.io/web-audio-api/#GainOptions

struct GainOptions : AudioNodeOptions {

    float gain { 1.0 };

};

// https://webaudio.github.io/web-audio-api/#GainNode

class GainNode : public AudioNode {

    WEB_PLATFORM_OBJECT(GainNode, AudioNode);

    JS_DECLARE_ALLOCATOR(GainNode);

public:

    virtual ~GainNode() override;

    static WebIDL::ExceptionOr<JS::NonnullGCPtr<GainNode>> create(JS::Realm&, JS::NonnullGCPtr<BaseAudioContext>, GainOptions const& = {});

    static WebIDL::ExceptionOr<JS::NonnullGCPtr<GainNode>> construct_impl(JS::Realm&, JS::NonnullGCPtr<BaseAudioContext>, GainOptions const& = {});

    WebIDL::UnsignedLong number_of_inputs() override { return 1; }

    WebIDL::UnsignedLong number_of_outputs() override { return 1; }

    JS::NonnullGCPtr<AudioParam const> gain() const { return m_gain; }

protected:

    GainNode(JS::Realm&, JS::NonnullGCPtr<BaseAudioContext>, GainOptions const& = {});

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

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

private:

    // https://webaudio.github.io/web-audio-api/#dom-gainnode-gain

    JS::NonnullGCPtr<AudioParam> m_gain;

};

}