/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_dom_SharedWorkerParent_h
#define mozilla_dom_dom_SharedWorkerParent_h

#include "mozilla/dom/PSharedWorkerParent.h"
#include "mozilla/dom/quota/CheckedUnsafePtr.h"
#include "mozilla/ipc/BackgroundUtils.h"
#include "nsISupportsImpl.h"

namespace mozilla::dom {

class MessagePortIdentifier;
class RemoteWorkerData;
class SharedWorkerManagerWrapper;

/**
 * PBackground actor that relays life-cycle events (freeze/thaw, suspend/resume,
 * close) to the PBackground SharedWorkerManager and relays error/termination
 * back to the child.
 */
class SharedWorkerParent final
    : public mozilla::dom::PSharedWorkerParent,
      public SupportsCheckedUnsafePtr<CheckIf<DiagnosticAssertEnabled>> {
 public:
  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(SharedWorkerParent)

  SharedWorkerParent();

  void Initialize(const RemoteWorkerData& aData, uint64_t aWindowID,
                  const MessagePortIdentifier& aPortIdentifier);

  void ManagerCreated(
      already_AddRefed<SharedWorkerManagerWrapper> aWorkerManagerWrapper);

  void ErrorPropagation(nsresult aError);

  mozilla::ipc::IPCResult RecvClose();

  mozilla::ipc::IPCResult RecvSuspend();

  mozilla::ipc::IPCResult RecvResume();

  mozilla::ipc::IPCResult RecvFreeze();

  mozilla::ipc::IPCResult RecvThaw();

  bool IsSuspended() const { return mSuspended; }

  bool IsFrozen() const { return mFrozen; }

  uint64_t WindowID() const { return mWindowID; }

 private:
  ~SharedWorkerParent();

  void ActorDestroy(IProtocol::ActorDestroyReason aReason) override;

  nsCOMPtr<nsIEventTarget> mBackgroundEventTarget;
  RefPtr<SharedWorkerManagerWrapper> mWorkerManagerWrapper;

  enum {
    eInit,
    ePending,
    eActive,
    eClosed,
  } mStatus;

  uint64_t mWindowID;

  bool mSuspended;
  bool mFrozen;
};

}  // namespace mozilla::dom

#endif  // mozilla_dom_dom_SharedWorkerParent_h
