#include <AK/TypeCasts.h>
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/PrimitiveString.h>
#include <LibJS/Runtime/Realm.h>
#include <LibJS/Runtime/TypedArray.h>
#include <LibJS/Runtime/VM.h>
#include <LibJS/Runtime/Value.h>
#include <LibJS/Runtime/ValueInlines.h>
#include <LibWeb/Bindings/AudioNode.h>
#include <LibWeb/Bindings/BiquadFilterNode.h>
#include <LibWeb/Bindings/ExceptionOrUtils.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/WebAudio/AudioParam.h>
#include <LibWeb/WebAudio/BaseAudioContext.h>
#include <LibWeb/WebAudio/BiquadFilterNode.h>
#include <LibWeb/WebIDL/Tracing.h>

namespace Web::Bindings {

void BiquadFilterNodeConstructor::initialize(JS::Realm& realm, JS::NativeFunction& object)
{
    auto& vm = realm.vm();
    [[maybe_unused]] u8 default_attributes = JS::Attribute::Enumerable;

    object.set_prototype(&ensure_web_constructor<AudioNodePrototype>(realm, "AudioNode"_fly_string));
    object.define_direct_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
    object.define_direct_property(vm.names.name, JS::PrimitiveString::create(vm, "BiquadFilterNode"_utf16), JS::Attribute::Configurable);
    object.define_direct_property(vm.names.prototype, &ensure_web_prototype<BiquadFilterNodePrototype>(realm, "BiquadFilterNode"_fly_string), 0);
}

JS::ThrowCompletionOr<GC::Ref<JS::Object>> BiquadFilterNodeConstructor::construct([[maybe_unused]] InterfaceConstructor& constructor, [[maybe_unused]] JS::FunctionObject& new_target)
{
    WebIDL::log_trace(constructor.vm(), "BiquadFilterNodeConstructor::construct");
    auto& vm = constructor.vm();
    [[maybe_unused]] auto& realm = *vm.current_realm();

    // To internally create a new object implementing the interface BiquadFilterNode:

    // 3.2. Let prototype be ? Get(newTarget, "prototype").
    auto prototype = TRY(new_target.get(vm.names.prototype));

    // 3.3. If Type(prototype) is not Object, then:
    if (!prototype.is_object()) {
        // 1. Let targetRealm be ? GetFunctionRealm(newTarget).
        auto* target_realm = TRY(JS::get_function_realm(vm, new_target));

        // 2. Set prototype to the interface prototype object for interface in targetRealm.
        VERIFY(target_realm);
        prototype = &Bindings::ensure_web_prototype<BiquadFilterNodePrototype>(*target_realm, "BiquadFilterNode"_fly_string);
    }

    if (vm.argument_count() < 1)
        return vm.throw_completion<JS::TypeError>(JS::ErrorType::BadArgCountOne, "BiquadFilterNode");

    auto arg0 = vm.argument(0);
    auto context = TRY(throw_dom_exception_if_needed(vm, [&] { return [&]() -> JS::ThrowCompletionOr<GC::Ref<WebAudio::BaseAudioContext>> {
        if (auto impl = arg0.as_if<WebAudio::BaseAudioContext>())
            return *impl;
        return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "BaseAudioContext");
    }(); }));

    auto arg1 = vm.argument(1);
    BiquadFilterOptions options = BiquadFilterOptions {};
    if (!arg1.is_undefined())
        options = TRY(throw_dom_exception_if_needed(vm, [&] { return convert_to_idl_value_for_biquad_filter_options(vm, arg1); }));

    auto impl = TRY(throw_dom_exception_if_needed(vm, [&] { return WebAudio::BiquadFilterNode::construct_impl(realm, context, options); }));

    // 7. Set instance.[[Prototype]] to prototype.
    VERIFY(prototype.is_object());
    impl->set_prototype(&prototype.as_object());

    // FIXME: Steps 8...11. of the "internally create a new object implementing the interface BiquadFilterNode" algorithm
    // (https://webidl.spec.whatwg.org/#js-platform-objects) are currently not handled, or are handled within WebAudio::BiquadFilterNode::construct_impl().

    return *impl;
}

void BiquadFilterNodePrototype::initialize(JS::Realm& realm, JS::Object& object)
{
    [[maybe_unused]] auto& vm = realm.vm();
    [[maybe_unused]] u8 default_attributes = JS::Attribute::Enumerable | JS::Attribute::Configurable | JS::Attribute::Writable;

    object.set_prototype(GC::Ref { ensure_web_prototype<AudioNodePrototype>(realm, "AudioNode"_fly_string) });

    auto type_id = "type"_utf16_fly_string;
    auto native_type_getter = JS::NativeFunction::create(realm, type_getter, 0, type_id, &realm, "get"sv);
    auto native_type_setter = JS::NativeFunction::create(realm, type_setter, 1, type_id, &realm, "set"sv);

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto type_attributes = default_attributes;

    // 5. Let desc be the PropertyDescriptor{[[Get]]: getter, [[Set]]: setter, [[Enumerable]]: true, [[Configurable]]: configurable}.

    // 7. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_accessor(type_id, native_type_getter, native_type_setter, type_attributes);

    // 8. FIXME: If attr’s type is an observable array type with type argument T, then set target’s backing observable array exotic object for attr to the result of creating an observable array exotic object in realm, given T, attr’s set an indexed value algorithm, and attr’s delete an indexed value algorithm.
    auto frequency_id = "frequency"_utf16_fly_string;
    auto native_frequency_getter = JS::NativeFunction::create(realm, frequency_getter, 0, frequency_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_frequency_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto frequency_attributes = default_attributes;

    // 5. Let desc be the PropertyDescriptor{[[Get]]: getter, [[Set]]: setter, [[Enumerable]]: true, [[Configurable]]: configurable}.

    // 7. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_accessor(frequency_id, native_frequency_getter, native_frequency_setter, frequency_attributes);

    // 8. FIXME: If attr’s type is an observable array type with type argument T, then set target’s backing observable array exotic object for attr to the result of creating an observable array exotic object in realm, given T, attr’s set an indexed value algorithm, and attr’s delete an indexed value algorithm.
    auto detune_id = "detune"_utf16_fly_string;
    auto native_detune_getter = JS::NativeFunction::create(realm, detune_getter, 0, detune_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_detune_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto detune_attributes = default_attributes;

    // 5. Let desc be the PropertyDescriptor{[[Get]]: getter, [[Set]]: setter, [[Enumerable]]: true, [[Configurable]]: configurable}.

    // 7. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_accessor(detune_id, native_detune_getter, native_detune_setter, detune_attributes);

    // 8. FIXME: If attr’s type is an observable array type with type argument T, then set target’s backing observable array exotic object for attr to the result of creating an observable array exotic object in realm, given T, attr’s set an indexed value algorithm, and attr’s delete an indexed value algorithm.
    auto q_id = "Q"_utf16_fly_string;
    auto native_q_getter = JS::NativeFunction::create(realm, q_getter, 0, q_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_q_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto q_attributes = default_attributes;

    // 5. Let desc be the PropertyDescriptor{[[Get]]: getter, [[Set]]: setter, [[Enumerable]]: true, [[Configurable]]: configurable}.

    // 7. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_accessor(q_id, native_q_getter, native_q_setter, q_attributes);

    // 8. FIXME: If attr’s type is an observable array type with type argument T, then set target’s backing observable array exotic object for attr to the result of creating an observable array exotic object in realm, given T, attr’s set an indexed value algorithm, and attr’s delete an indexed value algorithm.
    auto gain_id = "gain"_utf16_fly_string;
    auto native_gain_getter = JS::NativeFunction::create(realm, gain_getter, 0, gain_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_gain_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto gain_attributes = default_attributes;

    // 5. Let desc be the PropertyDescriptor{[[Get]]: getter, [[Set]]: setter, [[Enumerable]]: true, [[Configurable]]: configurable}.

    // 7. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_accessor(gain_id, native_gain_getter, native_gain_setter, gain_attributes);

    // 8. FIXME: If attr’s type is an observable array type with type argument T, then set target’s backing observable array exotic object for attr to the result of creating an observable array exotic object in realm, given T, attr’s set an indexed value algorithm, and attr’s delete an indexed value algorithm.
    object.define_native_function(realm, "getFrequencyResponse"_utf16_fly_string, get_frequency_response, 3, default_attributes);

    object.define_direct_property(vm.well_known_symbol_to_string_tag(), JS::PrimitiveString::create(vm, "BiquadFilterNode"_utf16), JS::Attribute::Configurable);
}

void BiquadFilterNodePrototype::define_unforgeable_attributes(JS::Realm& realm, [[maybe_unused]] JS::Object& object)
{
    [[maybe_unused]] auto& vm = realm.vm();
    [[maybe_unused]] u8 default_attributes = JS::Attribute::Enumerable;
}

[[maybe_unused]] static JS::ThrowCompletionOr<WebAudio::BiquadFilterNode*> impl_from(JS::VM& vm, JS::Value js_value)
{

    if (auto impl = js_value.as_if<WebAudio::BiquadFilterNode>())
        return impl.ptr();
    return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "BiquadFilterNode");
}

[[maybe_unused]] static JS::ThrowCompletionOr<WebAudio::BiquadFilterNode*> impl_from(JS::VM& vm)
{
    auto this_value = vm.this_value();
    if (this_value.is_nullish())
        this_value = &vm.current_realm()->global_object();
    return impl_from(vm, this_value);
}

JS_DEFINE_NATIVE_FUNCTION(BiquadFilterNodePrototype::type_getter)
{
    WebIDL::log_trace(vm, "BiquadFilterNodePrototype::type_getter");
    [[maybe_unused]] auto& realm = *vm.current_realm();

    auto* idl_object = TRY(impl_from(vm));


    auto R = TRY(throw_dom_exception_if_needed(vm, [&] { return idl_object->type(); }));

    return JS::PrimitiveString::create(vm, idl_enum_to_string(R));
}

JS_DEFINE_NATIVE_FUNCTION(BiquadFilterNodePrototype::frequency_getter)
{
    WebIDL::log_trace(vm, "BiquadFilterNodePrototype::frequency_getter");
    [[maybe_unused]] auto& realm = *vm.current_realm();

    auto* idl_object = TRY(impl_from(vm));


    auto R = TRY(throw_dom_exception_if_needed(vm, [&] { return idl_object->frequency(); }));

    return JS::Value(R);
}

JS_DEFINE_NATIVE_FUNCTION(BiquadFilterNodePrototype::detune_getter)
{
    WebIDL::log_trace(vm, "BiquadFilterNodePrototype::detune_getter");
    [[maybe_unused]] auto& realm = *vm.current_realm();

    auto* idl_object = TRY(impl_from(vm));


    auto R = TRY(throw_dom_exception_if_needed(vm, [&] { return idl_object->detune(); }));

    return JS::Value(R);
}

JS_DEFINE_NATIVE_FUNCTION(BiquadFilterNodePrototype::q_getter)
{
    WebIDL::log_trace(vm, "BiquadFilterNodePrototype::q_getter");
    [[maybe_unused]] auto& realm = *vm.current_realm();

    auto* idl_object = TRY(impl_from(vm));


    auto R = TRY(throw_dom_exception_if_needed(vm, [&] { return idl_object->q(); }));

    return JS::Value(R);
}

JS_DEFINE_NATIVE_FUNCTION(BiquadFilterNodePrototype::gain_getter)
{
    WebIDL::log_trace(vm, "BiquadFilterNodePrototype::gain_getter");
    [[maybe_unused]] auto& realm = *vm.current_realm();

    auto* idl_object = TRY(impl_from(vm));


    auto R = TRY(throw_dom_exception_if_needed(vm, [&] { return idl_object->gain(); }));

    return JS::Value(R);
}

JS_DEFINE_NATIVE_FUNCTION(BiquadFilterNodePrototype::type_setter)
{
    WebIDL::log_trace(vm, "BiquadFilterNodePrototype::type_setter");
    [[maybe_unused]] auto& realm = *vm.current_realm();

    // 1. Let V be undefined.
    auto V = JS::js_undefined();

    // 2. If any arguments were passed, then set V to the value of the first argument passed.
    if (vm.argument_count() > 0)
        V = vm.argument(0);

    // 3. Let id be attribute’s identifier.

    // 4. Let idlObject be null.
    [[maybe_unused]] WebAudio::BiquadFilterNode* idl_object = nullptr;

    // 5. If attribute is a regular attribute:

    // 1. Let jsValue be the this value, if it is not null or undefined, or realm’s global object otherwise. (This will subsequently cause a TypeError in a few steps, if the global object does not implement target and [LegacyLenientThis] is not specified.)
    auto js_value = vm.this_value();
    if (js_value.is_nullish())
        js_value = &realm.global_object();

    // 2. FIXME: If jsValue is a platform object, then perform a security check, passing jsValue, attribute’s identifier, and "setter".

    // 3. Let validThis be true if jsValue implements target, or false otherwise.
    auto maybe_idl_object = impl_from(vm, js_value);

    // 4. If validThis is false and attribute was not specified with the [LegacyLenientThis] extended attribute, then throw a TypeError.
    idl_object = TRY(maybe_idl_object);

    auto original_steps = [&]() -> JS::ThrowCompletionOr<JS::Value> {
        // 6. Let idlValue be determined as follows:
        // -> attribute's type is an enumeration
        // 1. Let S be ? ToString(V).
        auto maybe_idl_value = throw_dom_exception_if_needed(vm, [&] { return convert_to_idl_value_for_biquad_filter_type(vm, V); });

        // 2. If S is not one of the enumeration's values, then return undefined.
        if (maybe_idl_value.is_error())
            return JS::js_undefined();

        // 3. Otherwise, idlValue is the enumeration value equal to S.
        auto idl_value = maybe_idl_value.release_value();

        // 7. Run the setter steps of attribute with idlObject as this and idlValue as the value.
        auto setter_result = [&]() -> JS::ThrowCompletionOr<void> {
            TRY(throw_dom_exception_if_needed(vm, [&] { return idl_object->set_type(idl_value); }));
    return {};
        }();

        if (setter_result.is_error())
            return setter_result.release_error();

        return JS::js_undefined();
    };

    // 8. Return undefined.
    return TRY(original_steps());
}

JS_DEFINE_NATIVE_FUNCTION(BiquadFilterNodePrototype::get_frequency_response)
{
    WebIDL::log_trace(vm, "BiquadFilterNodePrototype::get_frequency_response");
    [[maybe_unused]] auto& realm = *vm.current_realm();
    [[maybe_unused]] WebAudio::BiquadFilterNode* idl_object = TRY(impl_from(vm));

    if (vm.argument_count() < 3)
        return vm.throw_completion<JS::TypeError>(JS::ErrorType::BadArgCountMany, "getFrequencyResponse", "3");

    auto arg0 = vm.argument(0);
    auto frequency_hz = TRY(throw_dom_exception_if_needed(vm, [&] { return [&]() -> JS::ThrowCompletionOr<GC::Ref<JS::Float32Array>> {
        // A JavaScript value V is converted to an IDL typed array value by running the following algorithm:
        // 1. Let T be the IDL type V is being converted to.
        // 2. If V is not an Object, or V does not have a [[TypedArrayName]] internal slot with a value equal to T's name,
        //    then throw a TypeError.
        auto builtin_buffer = arg0.as_if<JS::Float32Array>();
        if (!builtin_buffer)
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "Float32Array");

        auto& viewed_array_buffer = *builtin_buffer->viewed_array_buffer();

        // 2. If the conversion is not to an IDL type associated with the [AllowShared] extended attribute, and
        //    IsSharedArrayBuffer(V.[[ViewedArrayBuffer]]) is true, then throw a TypeError.
        if (viewed_array_buffer.is_shared_array_buffer())
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::SharedArrayBuffer);

        // 3. If the conversion is not to an IDL type associated with the [AllowResizable] extended attribute, and
        //    IsFixedLengthArrayBuffer(V.[[ViewedArrayBuffer]]) is false, then throw a TypeError.
        if (!viewed_array_buffer.is_fixed_length())
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "fixed-length Float32Array");

        // 5. Return the IDL value of type T that is a reference to the same object as V.
        return GC::Ref { *builtin_buffer };
    }(); }));

    auto arg1 = vm.argument(1);
    auto mag_response = TRY(throw_dom_exception_if_needed(vm, [&] { return [&]() -> JS::ThrowCompletionOr<GC::Ref<JS::Float32Array>> {
        // A JavaScript value V is converted to an IDL typed array value by running the following algorithm:
        // 1. Let T be the IDL type V is being converted to.
        // 2. If V is not an Object, or V does not have a [[TypedArrayName]] internal slot with a value equal to T's name,
        //    then throw a TypeError.
        auto builtin_buffer = arg1.as_if<JS::Float32Array>();
        if (!builtin_buffer)
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "Float32Array");

        auto& viewed_array_buffer = *builtin_buffer->viewed_array_buffer();

        // 2. If the conversion is not to an IDL type associated with the [AllowShared] extended attribute, and
        //    IsSharedArrayBuffer(V.[[ViewedArrayBuffer]]) is true, then throw a TypeError.
        if (viewed_array_buffer.is_shared_array_buffer())
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::SharedArrayBuffer);

        // 3. If the conversion is not to an IDL type associated with the [AllowResizable] extended attribute, and
        //    IsFixedLengthArrayBuffer(V.[[ViewedArrayBuffer]]) is false, then throw a TypeError.
        if (!viewed_array_buffer.is_fixed_length())
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "fixed-length Float32Array");

        // 5. Return the IDL value of type T that is a reference to the same object as V.
        return GC::Ref { *builtin_buffer };
    }(); }));

    auto arg2 = vm.argument(2);
    auto phase_response = TRY(throw_dom_exception_if_needed(vm, [&] { return [&]() -> JS::ThrowCompletionOr<GC::Ref<JS::Float32Array>> {
        // A JavaScript value V is converted to an IDL typed array value by running the following algorithm:
        // 1. Let T be the IDL type V is being converted to.
        // 2. If V is not an Object, or V does not have a [[TypedArrayName]] internal slot with a value equal to T's name,
        //    then throw a TypeError.
        auto builtin_buffer = arg2.as_if<JS::Float32Array>();
        if (!builtin_buffer)
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "Float32Array");

        auto& viewed_array_buffer = *builtin_buffer->viewed_array_buffer();

        // 2. If the conversion is not to an IDL type associated with the [AllowShared] extended attribute, and
        //    IsSharedArrayBuffer(V.[[ViewedArrayBuffer]]) is true, then throw a TypeError.
        if (viewed_array_buffer.is_shared_array_buffer())
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::SharedArrayBuffer);

        // 3. If the conversion is not to an IDL type associated with the [AllowResizable] extended attribute, and
        //    IsFixedLengthArrayBuffer(V.[[ViewedArrayBuffer]]) is false, then throw a TypeError.
        if (!viewed_array_buffer.is_fixed_length())
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "fixed-length Float32Array");

        // 5. Return the IDL value of type T that is a reference to the same object as V.
        return GC::Ref { *builtin_buffer };
    }(); }));

    [[maybe_unused]] auto R = TRY(throw_dom_exception_if_needed(vm, [&] { return idl_object->get_frequency_response(frequency_hz, mag_response, phase_response); }));
    return JS::js_undefined();
}

// https://webidl.spec.whatwg.org/#idl-enumeration
JS::ThrowCompletionOr<BiquadFilterType> convert_to_idl_value_for_biquad_filter_type(JS::VM& vm, JS::Value value)
{
    // 1. Let S be the result of calling ? ToString(V).
    auto value_as_string = TRY(value.to_utf16_string(vm));

    // 2. If S is not one of E’s enumeration values, then throw a TypeError.
    // 3. Return the enumeration value of type E that is equal to S.
    if (value_as_string == "lowpass"sv)
        return BiquadFilterType::Lowpass;
    if (value_as_string == "highpass"sv)
        return BiquadFilterType::Highpass;
    if (value_as_string == "bandpass"sv)
        return BiquadFilterType::Bandpass;
    if (value_as_string == "lowshelf"sv)
        return BiquadFilterType::Lowshelf;
    if (value_as_string == "highshelf"sv)
        return BiquadFilterType::Highshelf;
    if (value_as_string == "peaking"sv)
        return BiquadFilterType::Peaking;
    if (value_as_string == "notch"sv)
        return BiquadFilterType::Notch;
    if (value_as_string == "allpass"sv)
        return BiquadFilterType::Allpass;
    return vm.throw_completion<JS::TypeError>(JS::ErrorType::InvalidEnumerationValue, value_as_string, "BiquadFilterType");
}

// https://webidl.spec.whatwg.org/#idl-enumeration
Utf16String idl_enum_to_string(BiquadFilterType value)
{
    // The result of converting an IDL enumeration type value to a JavaScript value is the String value that represents the same sequence of code units as the enumeration value.
    switch (value) {
    case BiquadFilterType::Lowpass:
        return "lowpass"_utf16;
    case BiquadFilterType::Highpass:
        return "highpass"_utf16;
    case BiquadFilterType::Bandpass:
        return "bandpass"_utf16;
    case BiquadFilterType::Lowshelf:
        return "lowshelf"_utf16;
    case BiquadFilterType::Highshelf:
        return "highshelf"_utf16;
    case BiquadFilterType::Peaking:
        return "peaking"_utf16;
    case BiquadFilterType::Notch:
        return "notch"_utf16;
    case BiquadFilterType::Allpass:
        return "allpass"_utf16;
    }
    VERIFY_NOT_REACHED();
}

// https://webidl.spec.whatwg.org/#es-dictionary
JS::ThrowCompletionOr<BiquadFilterOptions> convert_to_idl_value_for_biquad_filter_options(JS::VM& vm, JS::Value js_dict)
{
    // 1. If jsDict is not an Object and jsDict is neither undefined nor null, then throw a TypeError.
    if (!js_dict.is_object() && !js_dict.is_nullish())
        return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "BiquadFilterOptions");

    // 2. Let idlDict be an empty ordered map, representing a dictionary of type D.
    // 3. Let dictionaries be a list consisting of D and all of D’s inherited dictionaries, in order from least to most derived.
    // 4. For each dictionary dictionary in dictionaries, in order:
    // NB: We defer construction until the return initializer because some members may not be default-constructible. Inherited dictionaries are represented by the generated C++ struct inheritance.

    // 5. Return idlDict.
    return BiquadFilterOptions {
        TRY(convert_to_idl_value_for_audio_node_options(vm, js_dict)),
        TRY([&]() -> JS::ThrowCompletionOr<float> {
            // 1. Let key be the identifier of member.
            // 2. If jsDict is either undefined or null, then:
            //     1. Let jsMemberValue be undefined.
            // 3. Otherwise,
            //     1. Let jsMemberValue be ? Get(jsDict, key).
            auto js_member_value = JS::js_undefined();
            if (js_dict.is_object())
                js_member_value = TRY(js_dict.as_object().get("Q"_utf16_fly_string));

            // 4. If jsMemberValue is not undefined, then:
            if (!js_member_value.is_undefined()) {
                // 1. Let idlMemberValue be the result of converting jsMemberValue to an IDL value whose type is the type member is declared to be of.
                auto idl_member_value = TRY(throw_dom_exception_if_needed(vm, [&] { return [&]() -> JS::ThrowCompletionOr<float> {
        float x = TRY(js_member_value.to_double(vm));
        if (isinf(x) || isnan(x))
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::InvalidRestrictedFloatingPointParameter, "Q");
        return x;
    }(); }));

                // 2. Set idlDict[key] to idlMemberValue.
                return idl_member_value;
            }
            // 5. Otherwise, if jsMemberValue is undefined but member has a default value, then:
            // 1. Let idlMemberValue be the result of converting member's default value to an IDL value whose type is the type member is declared to be of.
            auto idl_member_value = 1;

            // 2. Set idlDict[key] to idlMemberValue.
            return idl_member_value;
        }()),
        TRY([&]() -> JS::ThrowCompletionOr<float> {
            // 1. Let key be the identifier of member.
            // 2. If jsDict is either undefined or null, then:
            //     1. Let jsMemberValue be undefined.
            // 3. Otherwise,
            //     1. Let jsMemberValue be ? Get(jsDict, key).
            auto js_member_value = JS::js_undefined();
            if (js_dict.is_object())
                js_member_value = TRY(js_dict.as_object().get("detune"_utf16_fly_string));

            // 4. If jsMemberValue is not undefined, then:
            if (!js_member_value.is_undefined()) {
                // 1. Let idlMemberValue be the result of converting jsMemberValue to an IDL value whose type is the type member is declared to be of.
                auto idl_member_value = TRY(throw_dom_exception_if_needed(vm, [&] { return [&]() -> JS::ThrowCompletionOr<float> {
        float x = TRY(js_member_value.to_double(vm));
        if (isinf(x) || isnan(x))
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::InvalidRestrictedFloatingPointParameter, "detune");
        return x;
    }(); }));

                // 2. Set idlDict[key] to idlMemberValue.
                return idl_member_value;
            }
            // 5. Otherwise, if jsMemberValue is undefined but member has a default value, then:
            // 1. Let idlMemberValue be the result of converting member's default value to an IDL value whose type is the type member is declared to be of.
            auto idl_member_value = 0;

            // 2. Set idlDict[key] to idlMemberValue.
            return idl_member_value;
        }()),
        TRY([&]() -> JS::ThrowCompletionOr<float> {
            // 1. Let key be the identifier of member.
            // 2. If jsDict is either undefined or null, then:
            //     1. Let jsMemberValue be undefined.
            // 3. Otherwise,
            //     1. Let jsMemberValue be ? Get(jsDict, key).
            auto js_member_value = JS::js_undefined();
            if (js_dict.is_object())
                js_member_value = TRY(js_dict.as_object().get("frequency"_utf16_fly_string));

            // 4. If jsMemberValue is not undefined, then:
            if (!js_member_value.is_undefined()) {
                // 1. Let idlMemberValue be the result of converting jsMemberValue to an IDL value whose type is the type member is declared to be of.
                auto idl_member_value = TRY(throw_dom_exception_if_needed(vm, [&] { return [&]() -> JS::ThrowCompletionOr<float> {
        float x = TRY(js_member_value.to_double(vm));
        if (isinf(x) || isnan(x))
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::InvalidRestrictedFloatingPointParameter, "frequency");
        return x;
    }(); }));

                // 2. Set idlDict[key] to idlMemberValue.
                return idl_member_value;
            }
            // 5. Otherwise, if jsMemberValue is undefined but member has a default value, then:
            // 1. Let idlMemberValue be the result of converting member's default value to an IDL value whose type is the type member is declared to be of.
            auto idl_member_value = 350;

            // 2. Set idlDict[key] to idlMemberValue.
            return idl_member_value;
        }()),
        TRY([&]() -> JS::ThrowCompletionOr<float> {
            // 1. Let key be the identifier of member.
            // 2. If jsDict is either undefined or null, then:
            //     1. Let jsMemberValue be undefined.
            // 3. Otherwise,
            //     1. Let jsMemberValue be ? Get(jsDict, key).
            auto js_member_value = JS::js_undefined();
            if (js_dict.is_object())
                js_member_value = TRY(js_dict.as_object().get("gain"_utf16_fly_string));

            // 4. If jsMemberValue is not undefined, then:
            if (!js_member_value.is_undefined()) {
                // 1. Let idlMemberValue be the result of converting jsMemberValue to an IDL value whose type is the type member is declared to be of.
                auto idl_member_value = TRY(throw_dom_exception_if_needed(vm, [&] { return [&]() -> JS::ThrowCompletionOr<float> {
        float x = TRY(js_member_value.to_double(vm));
        if (isinf(x) || isnan(x))
            return vm.throw_completion<JS::TypeError>(JS::ErrorType::InvalidRestrictedFloatingPointParameter, "gain");
        return x;
    }(); }));

                // 2. Set idlDict[key] to idlMemberValue.
                return idl_member_value;
            }
            // 5. Otherwise, if jsMemberValue is undefined but member has a default value, then:
            // 1. Let idlMemberValue be the result of converting member's default value to an IDL value whose type is the type member is declared to be of.
            auto idl_member_value = 0;

            // 2. Set idlDict[key] to idlMemberValue.
            return idl_member_value;
        }()),
        TRY([&]() -> JS::ThrowCompletionOr<BiquadFilterType> {
            // 1. Let key be the identifier of member.
            // 2. If jsDict is either undefined or null, then:
            //     1. Let jsMemberValue be undefined.
            // 3. Otherwise,
            //     1. Let jsMemberValue be ? Get(jsDict, key).
            auto js_member_value = JS::js_undefined();
            if (js_dict.is_object())
                js_member_value = TRY(js_dict.as_object().get("type"_utf16_fly_string));

            // 4. If jsMemberValue is not undefined, then:
            if (!js_member_value.is_undefined()) {
                // 1. Let idlMemberValue be the result of converting jsMemberValue to an IDL value whose type is the type member is declared to be of.
                auto idl_member_value = TRY(throw_dom_exception_if_needed(vm, [&] { return convert_to_idl_value_for_biquad_filter_type(vm, js_member_value); }));

                // 2. Set idlDict[key] to idlMemberValue.
                return idl_member_value;
            }
            // 5. Otherwise, if jsMemberValue is undefined but member has a default value, then:
            // 1. Let idlMemberValue be the result of converting member's default value to an IDL value whose type is the type member is declared to be of.
            auto idl_member_value = BiquadFilterType::Lowpass;

            // 2. Set idlDict[key] to idlMemberValue.
            return idl_member_value;
        }()),
    };
}

} // namespace Web::Bindings