buffet/network_client.h

/*
 * Copyright 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef BUFFET_NETWORK_CLIENT_H_
#define BUFFET_NETWORK_CLIENT_H_

#include <memory>
#include <vector>

#include <base/cancelable_callback.h>
#include <weave/network.h>

#include "connectivity_client.h"

namespace buffet {

class NetworkClient : public weave::Network {
 public:
  NetworkClient();
  ~NetworkClient() override;

  // Implements the Network interface.
  void AddOnConnectionChangedCallback(
      const OnConnectionChangedCallback& listener) override;
  bool ConnectToService(const std::string& ssid,
                        const std::string& passphrase,
                        const base::Closure& on_success,
                        chromeos::ErrorPtr* error) override;
  weave::NetworkState GetConnectionState() const override;
  void EnableAccessPoint(const std::string& ssid) override;
  void DisableAccessPoint() override;

 private:
  enum class ConnectionState {
    kIdle,
    kInProgress,
    kConnected,
    kTimedOut
  };
  void OnConnectionTimeout();
  void ScheduleNextStatePoll();
  void UpdateConnectionState();

  ConnectivityClient connectivity_client_;
  std::vector<OnConnectionChangedCallback> connection_listeners_;
  base::CancelableClosure connection_timeout_closure_;
  base::CancelableClosure periodic_connection_state_closure_;
  base::Closure connection_success_closure_;
  weave::NetworkState state_;
  bool is_connected_;

  DISALLOW_COPY_AND_ASSIGN(NetworkClient);
};

}  // namespace buffet

#endif  // BUFFET_NETWORK_CLIENT_H_