/* -*- 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/. */

#include "RemoteServiceWorkerImpl.h"

#include "mozilla/dom/ClientInfo.h"

#include "mozilla/dom/ClientState.h"

#include "mozilla/ipc/BackgroundChild.h"

#include "mozilla/ipc/PBackgroundChild.h"

#include "ServiceWorkerChild.h"

#include "ServiceWorkerCloneData.h"

namespace mozilla {

namespace dom {

using mozilla::ipc::BackgroundChild;

using mozilla::ipc::PBackgroundChild;

RemoteServiceWorkerImpl::~RemoteServiceWorkerImpl()

{

  MOZ_DIAGNOSTIC_ASSERT(!mWorker);

  Shutdown();

}

void

RemoteServiceWorkerImpl::Shutdown()

{

  if (mShutdown) {

    return;

  }

  mShutdown = true;

  if (mActor) {

    mActor->RevokeOwner(this);

    mActor->MaybeStartTeardown();

    mActor = nullptr;

  }

}

void

RemoteServiceWorkerImpl::AddServiceWorker(ServiceWorker* aWorker)

{

  NS_ASSERT_OWNINGTHREAD(RemoteServiceWorkerImpl);

  MOZ_DIAGNOSTIC_ASSERT(!mWorker);

  MOZ_DIAGNOSTIC_ASSERT(aWorker);

  mWorker = aWorker;

}

void

RemoteServiceWorkerImpl::RemoveServiceWorker(ServiceWorker* aWorker)

{

  NS_ASSERT_OWNINGTHREAD(RemoteServiceWorkerImpl);

  MOZ_DIAGNOSTIC_ASSERT(mWorker);

  MOZ_DIAGNOSTIC_ASSERT(aWorker == mWorker);

  mWorker = nullptr;

}

void

RemoteServiceWorkerImpl::GetRegistration(ServiceWorkerRegistrationCallback&& aSuccessCB,

                                         ServiceWorkerFailureCallback&& aFailureCB)

{

  // TODO

}

void

RemoteServiceWorkerImpl::PostMessage(RefPtr<ServiceWorkerCloneData>&& aData,

                                     const ClientInfo& aClientInfo,

                                     const ClientState& aClientState)

{

  NS_ASSERT_OWNINGTHREAD(RemoteServiceWorkerImpl);

  if (!mActor) {

    return;

  }

  ClonedMessageData data;

  if (!aData->BuildClonedMessageDataForBackgroundChild(mActor->Manager(),

                                                       data)) {

    return;

  }

  mActor->SendPostMessage(data, ClientInfoAndState(aClientInfo.ToIPC(),

                                                   aClientState.ToIPC()));

}

RemoteServiceWorkerImpl::RemoteServiceWorkerImpl(const ServiceWorkerDescriptor& aDescriptor)

  : mActor(nullptr)

  , mWorker(nullptr)

  , mShutdown(false)

{

  PBackgroundChild* parentActor = BackgroundChild::GetOrCreateForCurrentThread();

  if (NS_WARN_IF(!parentActor)) {

    Shutdown();

    return;

  }

  RefPtr<WorkerHolderToken> workerHolderToken;

  if (!NS_IsMainThread()) {

    WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();

    MOZ_DIAGNOSTIC_ASSERT(workerPrivate);

    workerHolderToken =

      WorkerHolderToken::Create(workerPrivate, Canceling,

                                WorkerHolderToken::AllowIdleShutdownStart);

    if (NS_WARN_IF(!workerHolderToken)) {

      Shutdown();

      return;

    }

  }

  ServiceWorkerChild* actor = new ServiceWorkerChild(workerHolderToken);

  PServiceWorkerChild* sentActor =

    parentActor->SendPServiceWorkerConstructor(actor, aDescriptor.ToIPC());

  if (NS_WARN_IF(!sentActor)) {

    Shutdown();

    return;

  }

  MOZ_DIAGNOSTIC_ASSERT(sentActor == actor);

  mActor = actor;

  mActor->SetOwner(this);

}

void

RemoteServiceWorkerImpl::RevokeActor(ServiceWorkerChild* aActor)

{

  MOZ_DIAGNOSTIC_ASSERT(mActor);

  MOZ_DIAGNOSTIC_ASSERT(mActor == aActor);

  mActor->RevokeOwner(this);

  mActor = nullptr;

  mShutdown = true;

}

} // namespace dom

} // namespace mozilla