#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/Realm.h>
#include <LibJS/Runtime/Value.h>
#include <LibJS/Runtime/ValueInlines.h>
#include <LibWeb/Bindings/CountQueuingStrategy.h>
#include <LibWeb/Bindings/ExceptionOrUtils.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/Bindings/QueuingStrategyInit.h>
#include <LibWeb/Streams/CountQueuingStrategy.h>
#include <LibWeb/WebIDL/CallbackType.h>
#include <LibWeb/WebIDL/Tracing.h>

namespace Web::Bindings {

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

    
    object.define_direct_property(vm.names.length, JS::Value(1), JS::Attribute::Configurable);
    object.define_direct_property(vm.names.name, JS::PrimitiveString::create(vm, "CountQueuingStrategy"_utf16), JS::Attribute::Configurable);
    object.define_direct_property(vm.names.prototype, &ensure_web_prototype<CountQueuingStrategyPrototype>(realm, "CountQueuingStrategy"_fly_string), 0);
}

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

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

    // 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<CountQueuingStrategyPrototype>(*target_realm, "CountQueuingStrategy"_fly_string);
    }

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

    auto arg0 = vm.argument(0);
    auto init = TRY(throw_dom_exception_if_needed(vm, [&] { return convert_to_idl_value_for_queuing_strategy_init(vm, arg0); }));

    auto impl = TRY(throw_dom_exception_if_needed(vm, [&] { return Streams::CountQueuingStrategy::construct_impl(realm, init); }));

    // 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 CountQueuingStrategy" algorithm
    // (https://webidl.spec.whatwg.org/#js-platform-objects) are currently not handled, or are handled within Streams::CountQueuingStrategy::construct_impl().

    return *impl;
}

void CountQueuingStrategyPrototype::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(realm.intrinsics().object_prototype());

    auto high_water_mark_id = "highWaterMark"_utf16_fly_string;
    auto native_high_water_mark_getter = JS::NativeFunction::create(realm, high_water_mark_getter, 0, high_water_mark_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_high_water_mark_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto high_water_mark_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(high_water_mark_id, native_high_water_mark_getter, native_high_water_mark_setter, high_water_mark_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 size_id = "size"_utf16_fly_string;
    auto native_size_getter = JS::NativeFunction::create(realm, size_getter, 0, size_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_size_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto size_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(size_id, native_size_getter, native_size_setter, size_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_direct_property(vm.well_known_symbol_to_string_tag(), JS::PrimitiveString::create(vm, "CountQueuingStrategy"_utf16), JS::Attribute::Configurable);
}

void CountQueuingStrategyPrototype::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<Streams::CountQueuingStrategy*> impl_from(JS::VM& vm, JS::Value js_value)
{

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

[[maybe_unused]] static JS::ThrowCompletionOr<Streams::CountQueuingStrategy*> 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(CountQueuingStrategyPrototype::high_water_mark_getter)
{
    WebIDL::log_trace(vm, "CountQueuingStrategyPrototype::high_water_mark_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->high_water_mark(); }));

    return JS::Value(R);
}

JS_DEFINE_NATIVE_FUNCTION(CountQueuingStrategyPrototype::size_getter)
{
    WebIDL::log_trace(vm, "CountQueuingStrategyPrototype::size_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->size(); }));

    return R->callback;
}

} // namespace Web::Bindings