// Copyright (c) 2026 Microsoft Corporation.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.

#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_WRAPPABLE_POINTER_TAGS_H_
#define ELECTRON_SHELL_COMMON_GIN_HELPER_WRAPPABLE_POINTER_TAGS_H_

#include "gin/public/wrappable_pointer_tags.h"
#include "gin/public/wrapper_info.h"

namespace electron {

// Electron-specific WrappablePointerTag values that extend gin's tag range.
enum ElectronWrappablePointerTag : uint16_t {
  kElectronApp = gin::kLastPointerTag + 1,  // electron::api::App
  kElectronAutoUpdater,                     // electron::api::AutoUpdater
  kElectronChunkedDataPipeReadableStream,   // ChunkedDataPipeReadableStream
  kElectronCookies,                         // electron::api::Cookies
  kElectronDataPipeHolder,                  // electron::api::DataPipeHolder
  kElectronDebugger,                        // electron::api::Debugger
  kElectronDownloadItem,                    // electron::api::DownloadItem
  kElectronEvent,                           // gin_helper::internal::Event
  kElectronGlobalShortcut,                  // electron::api::GlobalShortcut
  kElectronExtensions,                      // electron::api::Extensions
  kElectronIPCRenderFrame,                  // (anonymous) IPCRenderFrame
  kElectronIPCServiceWorker,                // (anonymous) IPCServiceWorker
  kElectronJSChunkedDataPipeGetter,         // JSChunkedDataPipeGetter
  kElectronMenu,                            // electron::api::Menu
  kElectronNativeImage,                     // electron::api::NativeImage
  kElectronNetLog,                          // electron::api::NetLog
  kElectronParentPort,                      // electron::ParentPort
  kElectronPowerMonitor,                    // electron::api::PowerMonitor
  kElectronPowerSaveBlocker,                // electron::api::PowerSaveBlocker
  kElectronProtocol,                        // electron::api::Protocol
  kElectronReplyChannel,            // gin_helper::internal::ReplyChannel
  kElectronScreen,                  // electron::api::Screen
  kElectronServiceWorkerContext,    // electron::api::ServiceWorkerContext
  kElectronSession,                 // electron::api::Session
  kElectronSimpleURLLoaderWrapper,  // electron::api::SimpleURLLoaderWrapper
  kElectronTray,                    // electron::api::Tray
  kElectronUtilityProcess,          // electron::api::UtilityProcessWrapper
  kElectronWebFrameRenderer,        // (anonymous) WebFrameRenderer
  kElectronWebRequest,              // electron::api::WebRequest
  kElectronWebSocket,               // electron::api::WebSocketWrapper
  kLastElectronPointerTag = kElectronWebSocket,
};

// Constructs a gin::WrapperInfo from an ElectronWrappablePointerTag,
constexpr gin::WrapperInfo MakeWrapperInfo(ElectronWrappablePointerTag tag) {
  return {{gin::kEmbedderNativeGin},
          static_cast<gin::WrappablePointerTag>(tag)};
}

static_assert(static_cast<uint16_t>(kElectronApp) >
                  static_cast<uint16_t>(gin::kLastPointerTag),
              "Electron tags must start after gin's last tag.");

// Ensure the full range (gin + Electron) fits within v8's allowed tag space.
static_assert(
    kLastElectronPointerTag <
        static_cast<uint16_t>(v8::CppHeapPointerTag::kZappedEntryTag),
    "The defined Electron type tags exceed the range of allowed tags. "
    "Reduce the number of tags or adjust gin::kFirstPointerTag so that "
    "all values fit.");

// Electron's tags extend gin's range (they start at gin::kLastPointerTag + 1),
// so the combined gin + Electron tag range must stay below the tag Node.js
// uses for its cppgc wrappables. That value is provided by the
// EMBEDDER_CPPHEAP_POINTER_TAG define on the libnode GN target (see
// third_party/electron_node/unofficial.gni and src/cppgc_helpers.h). If this
// fires, the gin + Electron tag range has grown into Node's tag.
static_assert(static_cast<uint16_t>(kLastElectronPointerTag) <
                  EMBEDDER_CPPHEAP_POINTER_TAG,
              "gin + Electron tags must stay below the CppHeapPointerTag "
              "used by Node.js for cppgc wrappables.");

}  // namespace electron

#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_WRAPPABLE_POINTER_TAGS_H_
