/*

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

 *

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

 */

#pragma once

#include <LibWeb/Bindings/OscillatorNodePrototype.h>

#include <LibWeb/WebAudio/AudioScheduledSourceNode.h>

namespace Web::WebAudio {

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

struct OscillatorOptions : AudioNodeOptions {

    Bindings::OscillatorType type { Bindings::OscillatorType::Sine };

    float frequency { 440 };

    float detune { 0 };

    JS::GCPtr<PeriodicWave> periodic_wave;

};

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

class OscillatorNode : public AudioScheduledSourceNode {

    WEB_PLATFORM_OBJECT(OscillatorNode, AudioScheduledSourceNode);

    JS_DECLARE_ALLOCATOR(OscillatorNode);

public:

    virtual ~OscillatorNode() override;

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

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

    Bindings::OscillatorType type() const;

    WebIDL::ExceptionOr<void> set_type(Bindings::OscillatorType);

    JS::NonnullGCPtr<AudioParam const> frequency() const { return m_frequency; }

    WebIDL::UnsignedLong number_of_inputs() override { return 0; }

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

protected:

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

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

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

private:

    static WebIDL::ExceptionOr<void> verify_valid_type(JS::Realm&, Bindings::OscillatorType);

    // https://webaudio.github.io/web-audio-api/#dom-oscillatornode-type

    Bindings::OscillatorType m_type { Bindings::OscillatorType::Sine };

    // https://webaudio.github.io/web-audio-api/#dom-oscillatornode-frequency

    JS::NonnullGCPtr<AudioParam> m_frequency;

};

}