#pragma once

#include <AK/Optional.h>
#include <AK/String.h>
#include <AK/Types.h>
#include <AK/Variant.h>
#include <AK/Vector.h>
#include <LibGC/Ptr.h>
#include <LibJS/Forward.h>
#include <LibJS/Runtime/NativeFunction.h>
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/Value.h>
#include <LibWeb/Bindings/InterfaceObject.h>
#include <LibWeb/Forward.h>
#include <LibWeb/WebIDL/Types.h>

namespace Web::Bindings {

struct IntersectionObserverConstructor {
public:
    static void initialize(JS::Realm&, JS::NativeFunction&);
    static JS::ThrowCompletionOr<GC::Ref<JS::Object>> construct(InterfaceConstructor&, JS::FunctionObject&);

private:
};

struct IntersectionObserverPrototype {
public:
    static void initialize(JS::Realm&, JS::Object&);
    static void define_unforgeable_attributes(JS::Realm&, JS::Object&);

private:
    JS_DECLARE_NATIVE_FUNCTION(root_getter);
    JS_DECLARE_NATIVE_FUNCTION(root_margin_getter);
    JS_DECLARE_NATIVE_FUNCTION(scroll_margin_getter);
    JS_DECLARE_NATIVE_FUNCTION(thresholds_getter);
    JS_DECLARE_NATIVE_FUNCTION(delay_getter);
    JS_DECLARE_NATIVE_FUNCTION(track_visibility_getter);
    JS_DECLARE_NATIVE_FUNCTION(observe);
    JS_DECLARE_NATIVE_FUNCTION(unobserve);
    JS_DECLARE_NATIVE_FUNCTION(disconnect);
    JS_DECLARE_NATIVE_FUNCTION(take_records);
};

struct IntersectionObserverInit {
    WebIDL::Long delay { 0 };
    Variant<GC::Ref<DOM::Element>, GC::Ref<DOM::Document>, Empty> root { Variant<GC::Ref<DOM::Element>, GC::Ref<DOM::Document>, Empty> { Empty {} } };
    String root_margin { "0px"_string };
    String scroll_margin { "0px"_string };
    Variant<double, Vector<double>> threshold { Variant<double, Vector<double>> { 0 } };
    bool track_visibility { false };
};

JS::ThrowCompletionOr<IntersectionObserverInit> convert_to_idl_value_for_intersection_observer_init(JS::VM&, JS::Value);

} // namespace Web::Bindings