#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/Value.h>
#include <LibJS/Runtime/ValueInlines.h>
#include <LibWeb/Bindings/ExceptionOrUtils.h>
#include <LibWeb/Bindings/IDBCursor.h>
#include <LibWeb/Bindings/IDBCursorWithValue.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/IndexedDB/IDBCursorWithValue.h>
#include <LibWeb/WebIDL/Tracing.h>

namespace Web::Bindings {

void IDBCursorWithValueConstructor::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<IDBCursorPrototype>(realm, "IDBCursor"_fly_string));
    object.define_direct_property(vm.names.length, JS::Value(0), JS::Attribute::Configurable);
    object.define_direct_property(vm.names.name, JS::PrimitiveString::create(vm, "IDBCursorWithValue"_utf16), JS::Attribute::Configurable);
    object.define_direct_property(vm.names.prototype, &ensure_web_prototype<IDBCursorWithValuePrototype>(realm, "IDBCursorWithValue"_fly_string), 0);
}

JS::ThrowCompletionOr<GC::Ref<JS::Object>> IDBCursorWithValueConstructor::construct([[maybe_unused]] InterfaceConstructor& constructor, [[maybe_unused]] JS::FunctionObject& new_target)
{
    WebIDL::log_trace(constructor.vm(), "IDBCursorWithValueConstructor::construct");
    return constructor.vm().throw_completion<JS::TypeError>(JS::ErrorType::NotAConstructor, "IDBCursorWithValue");
}

void IDBCursorWithValuePrototype::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<IDBCursorPrototype>(realm, "IDBCursor"_fly_string) });

    auto value_id = "value"_utf16_fly_string;
    auto native_value_getter = JS::NativeFunction::create(realm, value_getter, 0, value_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_value_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto value_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(value_id, native_value_getter, native_value_setter, value_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, "IDBCursorWithValue"_utf16), JS::Attribute::Configurable);
}

void IDBCursorWithValuePrototype::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<IndexedDB::IDBCursorWithValue*> impl_from(JS::VM& vm, JS::Value js_value)
{

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

[[maybe_unused]] static JS::ThrowCompletionOr<IndexedDB::IDBCursorWithValue*> 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(IDBCursorWithValuePrototype::value_getter)
{
    WebIDL::log_trace(vm, "IDBCursorWithValuePrototype::value_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->value(); }));

    return R;
}

} // namespace Web::Bindings