/*

 * Copyright (c) 2022, Andrew Kaster <akaster@serenityos.org>

 * Copyright (c) 2022, Linus Groh <linusg@serenityos.org>

 * Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#include <LibJS/Heap/Heap.h>

#include <LibJS/Runtime/Realm.h>

#include <LibWeb/Bindings/Intrinsics.h>

#include <LibWeb/Bindings/NavigatorPrototype.h>

#include <LibWeb/Clipboard/Clipboard.h>

#include <LibWeb/HTML/Navigator.h>

#include <LibWeb/HTML/Scripting/Environments.h>

#include <LibWeb/HTML/ServiceWorkerContainer.h>

#include <LibWeb/HTML/Window.h>

#include <LibWeb/Loader/ResourceLoader.h>

#include <LibWeb/Page/Page.h>

namespace Web::HTML {

JS_DEFINE_ALLOCATOR(Navigator);

JS::NonnullGCPtr<Navigator> Navigator::create(JS::Realm& realm)

{

    return realm.heap().allocate<Navigator>(realm, realm);

}

Navigator::Navigator(JS::Realm& realm)

    : PlatformObject(realm)

{

}

Navigator::~Navigator() = default;

void Navigator::initialize(JS::Realm& realm)

{

    Base::initialize(realm);

    WEB_SET_PROTOTYPE_FOR_INTERFACE(Navigator);

}

// https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-pdfviewerenabled

bool Navigator::pdf_viewer_enabled() const

{

    // The NavigatorPlugins mixin's pdfViewerEnabled getter steps are to return the user agent's PDF viewer supported.

    // NOTE: The NavigatorPlugins mixin should only be exposed on the Window object.

    auto const& window = verify_cast<HTML::Window>(HTML::current_global_object());

    return window.page().pdf_viewer_supported();

}

// https://w3c.github.io/webdriver/#dfn-webdriver

bool Navigator::webdriver() const

{

    // Returns true if webdriver-active flag is set, false otherwise.

    // NOTE: The NavigatorAutomationInformation interface should not be exposed on WorkerNavigator.

    auto const& window = verify_cast<HTML::Window>(HTML::current_global_object());

    return window.page().is_webdriver_active();

}

void Navigator::visit_edges(Cell::Visitor& visitor)

{

    Base::visit_edges(visitor);

    visitor.visit(m_mime_type_array);

    visitor.visit(m_plugin_array);

    visitor.visit(m_clipboard);

    visitor.visit(m_user_activation);

    visitor.visit(m_service_worker_container);

    visitor.visit(m_media_capabilities);

}

JS::NonnullGCPtr<MimeTypeArray> Navigator::mime_types()

{

    if (!m_mime_type_array)

        m_mime_type_array = heap().allocate<MimeTypeArray>(realm(), realm());

    return *m_mime_type_array;

}

JS::NonnullGCPtr<PluginArray> Navigator::plugins()

{

    if (!m_plugin_array)

        m_plugin_array = heap().allocate<PluginArray>(realm(), realm());

    return *m_plugin_array;

}

JS::NonnullGCPtr<Clipboard::Clipboard> Navigator::clipboard()

{

    if (!m_clipboard)

        m_clipboard = heap().allocate<Clipboard::Clipboard>(realm(), realm());

    return *m_clipboard;

}

JS::NonnullGCPtr<UserActivation> Navigator::user_activation()

{

    if (!m_user_activation)

        m_user_activation = heap().allocate<UserActivation>(realm(), realm());

    return *m_user_activation;

}

// https://w3c.github.io/pointerevents/#dom-navigator-maxtouchpoints

WebIDL::Long Navigator::max_touch_points()

{

    dbgln("FIXME: Unimplemented Navigator.maxTouchPoints");

    return 0;

}

// https://www.w3.org/TR/tracking-dnt/#dom-navigator-donottrack

Optional<FlyString> Navigator::do_not_track() const

{

    // The value is null if no DNT header field would be sent (e.g., because a tracking preference is not

    // enabled and no user-granted exception is applicable); otherwise, the value is a string beginning with

    // "0" or "1", possibly followed by DNT-extension characters.

    if (ResourceLoader::the().enable_do_not_track())

        return "1"_fly_string;

    return {};

}

JS::NonnullGCPtr<ServiceWorkerContainer> Navigator::service_worker()

{

    if (!m_service_worker_container)

        m_service_worker_container = heap().allocate<ServiceWorkerContainer>(realm(), realm());

    return *m_service_worker_container;

}

JS::NonnullGCPtr<MediaCapabilitiesAPI::MediaCapabilities> Navigator::media_capabilities()

{

    if (!m_media_capabilities)

        m_media_capabilities = heap().allocate<MediaCapabilitiesAPI::MediaCapabilities>(realm(), realm());

    return *m_media_capabilities;

}

}