#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/Value.h>
#include <LibJS/Runtime/ValueInlines.h>
#include <LibWeb/Bindings/ExceptionOrUtils.h>
#include <LibWeb/Bindings/FileSystemEntry.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/EntriesAPI/FileSystemEntry.h>
#include <LibWeb/WebIDL/AbstractOperations.h>
#include <LibWeb/WebIDL/Tracing.h>

namespace Web::Bindings {

void FileSystemEntryConstructor::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, "FileSystemEntry"_utf16), JS::Attribute::Configurable);
    object.define_direct_property(vm.names.prototype, &ensure_web_prototype<FileSystemEntryPrototype>(realm, "FileSystemEntry"_fly_string), 0);
}

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

void FileSystemEntryPrototype::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 is_file_id = "isFile"_utf16_fly_string;
    auto native_is_file_getter = JS::NativeFunction::create(realm, is_file_getter, 0, is_file_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_is_file_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto is_file_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(is_file_id, native_is_file_getter, native_is_file_setter, is_file_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 is_directory_id = "isDirectory"_utf16_fly_string;
    auto native_is_directory_getter = JS::NativeFunction::create(realm, is_directory_getter, 0, is_directory_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_is_directory_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto is_directory_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(is_directory_id, native_is_directory_getter, native_is_directory_setter, is_directory_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 name_id = "name"_utf16_fly_string;
    auto native_name_getter = JS::NativeFunction::create(realm, name_getter, 0, name_id, &realm, "get"sv);
    GC::Ptr<JS::NativeFunction> native_name_setter;

    // 4. Let configurable be false if attr is unforgeable and true otherwise.
    auto name_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(name_id, native_name_getter, native_name_setter, name_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("getParent"_utf16_fly_string, JS::js_undefined(), default_attributes | JS::Attribute::Unimplemented);

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

void FileSystemEntryPrototype::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<EntriesAPI::FileSystemEntry*> impl_from(JS::VM& vm, JS::Value js_value)
{

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

[[maybe_unused]] static JS::ThrowCompletionOr<EntriesAPI::FileSystemEntry*> 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(FileSystemEntryPrototype::is_file_getter)
{
    WebIDL::log_trace(vm, "FileSystemEntryPrototype::is_file_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->is_file(); }));

    return JS::Value(R);
}

JS_DEFINE_NATIVE_FUNCTION(FileSystemEntryPrototype::is_directory_getter)
{
    WebIDL::log_trace(vm, "FileSystemEntryPrototype::is_directory_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->is_directory(); }));

    return JS::Value(R);
}

JS_DEFINE_NATIVE_FUNCTION(FileSystemEntryPrototype::name_getter)
{
    WebIDL::log_trace(vm, "FileSystemEntryPrototype::name_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->name(); }));

    return WebIDL::primitive_string_from_string(vm, R);
}

} // namespace Web::Bindings