#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/PropertyDescriptor.h>
#include <LibJS/Runtime/Value.h>
#include <LibJS/Runtime/ValueInlines.h>
#include <LibWeb/Bindings/ExceptionOrUtils.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/Bindings/PerformanceNavigation.h>
#include <LibWeb/NavigationTiming/PerformanceNavigation.h>
#include <LibWeb/WebIDL/Tracing.h>
#include <LibWeb/WebIDL/Types.h>

namespace Web::Bindings {

void PerformanceNavigationConstructor::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(0), JS::Attribute::Configurable);
    object.define_direct_property(vm.names.name, JS::PrimitiveString::create(vm, "PerformanceNavigation"_utf16), JS::Attribute::Configurable);
    object.define_direct_property(vm.names.prototype, &ensure_web_prototype<PerformanceNavigationPrototype>(realm, "PerformanceNavigation"_fly_string), 0);

    // 1. FIXME: If const is not exposed in realm, then continue.
    // 2. Let value be the result of converting const’s IDL value to a JavaScript value.
    // 3. Let desc be the PropertyDescriptor{[[Writable]]: false, [[Enumerable]]: true, [[Configurable]]: false, [[Value]]: value}.
    // 4. Let id be const’s identifier.
    // 5. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_property("TYPE_NAVIGATE"_utf16_fly_string, JS::Value(static_cast<WebIDL::UnsignedShort>(0)), JS::Attribute::Enumerable);
    // 1. FIXME: If const is not exposed in realm, then continue.
    // 2. Let value be the result of converting const’s IDL value to a JavaScript value.
    // 3. Let desc be the PropertyDescriptor{[[Writable]]: false, [[Enumerable]]: true, [[Configurable]]: false, [[Value]]: value}.
    // 4. Let id be const’s identifier.
    // 5. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_property("TYPE_RELOAD"_utf16_fly_string, JS::Value(static_cast<WebIDL::UnsignedShort>(1)), JS::Attribute::Enumerable);
    // 1. FIXME: If const is not exposed in realm, then continue.
    // 2. Let value be the result of converting const’s IDL value to a JavaScript value.
    // 3. Let desc be the PropertyDescriptor{[[Writable]]: false, [[Enumerable]]: true, [[Configurable]]: false, [[Value]]: value}.
    // 4. Let id be const’s identifier.
    // 5. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_property("TYPE_BACK_FORWARD"_utf16_fly_string, JS::Value(static_cast<WebIDL::UnsignedShort>(2)), JS::Attribute::Enumerable);
    // 1. FIXME: If const is not exposed in realm, then continue.
    // 2. Let value be the result of converting const’s IDL value to a JavaScript value.
    // 3. Let desc be the PropertyDescriptor{[[Writable]]: false, [[Enumerable]]: true, [[Configurable]]: false, [[Value]]: value}.
    // 4. Let id be const’s identifier.
    // 5. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_property("TYPE_RESERVED"_utf16_fly_string, JS::Value(static_cast<WebIDL::UnsignedShort>(255)), JS::Attribute::Enumerable);
}

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

void PerformanceNavigationPrototype::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 type_id = "type"_utf16_fly_string;
    auto native_type_getter = JS::NativeFunction::create(realm, type_getter, 0, type_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_type_setter;

    // 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 redirect_count_id = "redirectCount"_utf16_fly_string;
    auto native_redirect_count_getter = JS::NativeFunction::create(realm, redirect_count_getter, 0, redirect_count_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_redirect_count_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto redirect_count_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(redirect_count_id, native_redirect_count_getter, native_redirect_count_setter, redirect_count_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, "toJSON"_utf16_fly_string, to_json, 0, default_attributes);


    // 1. FIXME: If const is not exposed in realm, then continue.
    // 2. Let value be the result of converting const’s IDL value to a JavaScript value.
    // 3. Let desc be the PropertyDescriptor{[[Writable]]: false, [[Enumerable]]: true, [[Configurable]]: false, [[Value]]: value}.
    // 4. Let id be const’s identifier.
    // 5. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_property("TYPE_NAVIGATE"_utf16_fly_string, JS::Value(static_cast<WebIDL::UnsignedShort>(0)), JS::Attribute::Enumerable);
    // 1. FIXME: If const is not exposed in realm, then continue.
    // 2. Let value be the result of converting const’s IDL value to a JavaScript value.
    // 3. Let desc be the PropertyDescriptor{[[Writable]]: false, [[Enumerable]]: true, [[Configurable]]: false, [[Value]]: value}.
    // 4. Let id be const’s identifier.
    // 5. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_property("TYPE_RELOAD"_utf16_fly_string, JS::Value(static_cast<WebIDL::UnsignedShort>(1)), JS::Attribute::Enumerable);
    // 1. FIXME: If const is not exposed in realm, then continue.
    // 2. Let value be the result of converting const’s IDL value to a JavaScript value.
    // 3. Let desc be the PropertyDescriptor{[[Writable]]: false, [[Enumerable]]: true, [[Configurable]]: false, [[Value]]: value}.
    // 4. Let id be const’s identifier.
    // 5. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_property("TYPE_BACK_FORWARD"_utf16_fly_string, JS::Value(static_cast<WebIDL::UnsignedShort>(2)), JS::Attribute::Enumerable);
    // 1. FIXME: If const is not exposed in realm, then continue.
    // 2. Let value be the result of converting const’s IDL value to a JavaScript value.
    // 3. Let desc be the PropertyDescriptor{[[Writable]]: false, [[Enumerable]]: true, [[Configurable]]: false, [[Value]]: value}.
    // 4. Let id be const’s identifier.
    // 5. Perform ! DefinePropertyOrThrow(target, id, desc).
    object.define_direct_property("TYPE_RESERVED"_utf16_fly_string, JS::Value(static_cast<WebIDL::UnsignedShort>(255)), JS::Attribute::Enumerable);
    object.define_direct_property(vm.well_known_symbol_to_string_tag(), JS::PrimitiveString::create(vm, "PerformanceNavigation"_utf16), JS::Attribute::Configurable);
}

void PerformanceNavigationPrototype::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<NavigationTiming::PerformanceNavigation*> impl_from(JS::VM& vm, JS::Value js_value)
{

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

[[maybe_unused]] static JS::ThrowCompletionOr<NavigationTiming::PerformanceNavigation*> 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(PerformanceNavigationPrototype::type_getter)
{
    WebIDL::log_trace(vm, "PerformanceNavigationPrototype::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::Value(static_cast<WebIDL::UnsignedShort>(R));
}

JS_DEFINE_NATIVE_FUNCTION(PerformanceNavigationPrototype::redirect_count_getter)
{
    WebIDL::log_trace(vm, "PerformanceNavigationPrototype::redirect_count_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->redirect_count(); }));

    return JS::Value(static_cast<WebIDL::UnsignedShort>(R));
}

JS_DEFINE_NATIVE_FUNCTION(PerformanceNavigationPrototype::to_json)
{
    WebIDL::log_trace(vm, "PerformanceNavigationPrototype::to_json");
    auto& realm = *vm.current_realm();

    [[maybe_unused]] auto* idl_object = TRY(impl_from(vm));

    // 4. Let result be OrdinaryObjectCreate(%Object.prototype%).
    auto result = JS::Object::create(realm, realm.intrinsics().object_prototype());

    // 5. For each key → value of map:
    auto type_0_value = TRY(throw_dom_exception_if_needed(vm, [&] { return idl_object->type(); }));

    // 1. Let k be key converted to a JavaScript value.
    auto type_0_key = "type"_utf16_fly_string;

    // 2. Let v be value converted to a JavaScript value.
    auto type_0_value_js = JS::Value(static_cast<WebIDL::UnsignedShort>(type_0_value));

    // 3. Perform ! CreateDataPropertyOrThrow(result, k, v).
    MUST(result->create_data_property(type_0_key, type_0_value_js));
    auto redirect_count_1_value = TRY(throw_dom_exception_if_needed(vm, [&] { return idl_object->redirect_count(); }));

    // 1. Let k be key converted to a JavaScript value.
    auto redirect_count_1_key = "redirectCount"_utf16_fly_string;

    // 2. Let v be value converted to a JavaScript value.
    auto redirect_count_1_value_js = JS::Value(static_cast<WebIDL::UnsignedShort>(redirect_count_1_value));

    // 3. Perform ! CreateDataPropertyOrThrow(result, k, v).
    MUST(result->create_data_property(redirect_count_1_key, redirect_count_1_value_js));

    // 6. Return result.
    return result;
}

} // namespace Web::Bindings