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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/threading/non_thread_safe.h"
#include "chrome/browser/invalidation/invalidation_frontend.h"
#include "chrome/browser/profiles/profile_keyed_service.h"
#include "sync/notifier/object_id_invalidation_map.h"

#ifndef CHROME_BROWSER_INVALIDATION_P2P_INVALIDATION_SERVICE_H_
#define CHROME_BROWSER_INVALIDATION_P2P_INVALIDATION_SERVICE_H_

namespace syncer {
class P2PInvalidator;
}

class Profile;

namespace invalidation {

// This service is a wrapper around P2PInvalidator.  Unlike other
// InvalidationServices, it can both send and receive invalidations.  It is used
// only in tests, where we're unable to connect to a real invalidations server.
class P2PInvalidationService
    : public base::NonThreadSafe,
      public ProfileKeyedService,
      public InvalidationFrontend {
 public:
  explicit P2PInvalidationService(Profile* profile);
  virtual ~P2PInvalidationService();

  // Overrides ProfileKeyedService method.
  virtual void Shutdown() OVERRIDE;

  // InvalidationFrontend implementation.
  // It is an error to have registered handlers when Shutdown() is called.
  virtual void RegisterInvalidationHandler(
      syncer::InvalidationHandler* handler) OVERRIDE;
  virtual void UpdateRegisteredInvalidationIds(
      syncer::InvalidationHandler* handler,
      const syncer::ObjectIdSet& ids) OVERRIDE;
  virtual void UnregisterInvalidationHandler(
      syncer::InvalidationHandler* handler) OVERRIDE;
  virtual void AcknowledgeInvalidation(
      const invalidation::ObjectId& id,
      const syncer::AckHandle& ack_handle) OVERRIDE;
  virtual syncer::InvalidatorState GetInvalidatorState() const OVERRIDE;
  virtual std::string GetInvalidatorClientId() const;

  void UpdateCredentials(const std::string& username,
                         const std::string& password);

  void SendInvalidation(
      const syncer::ObjectIdInvalidationMap& invalidation_map);

 private:
  scoped_ptr<syncer::P2PInvalidator> invalidator_;
  std::string invalidator_id_;

  DISALLOW_COPY_AND_ASSIGN(P2PInvalidationService);
};

}  // namespace invalidation

#endif  // CHROME_BROWSER_INVALIDATION_P2P_INVALIDATION_SERVICE_H_