//
// Copyright (C) 2013 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 SHILL_CELLULAR_CELLULAR_CAPABILITY_UNIVERSAL_CDMA_H_
#define SHILL_CELLULAR_CELLULAR_CAPABILITY_UNIVERSAL_CDMA_H_

#include <memory>
#include <string>
#include <vector>

#include <base/memory/weak_ptr.h>
#include <gtest/gtest_prod.h>  // for FRIEND_TEST

#include "shill/cellular/cellular.h"
#include "shill/cellular/cellular_capability_universal.h"
#include "shill/cellular/mm1_modem_modemcdma_proxy_interface.h"

namespace shill {

class CellularCapabilityUniversalCDMA : public CellularCapabilityUniversal {
 public:
  CellularCapabilityUniversalCDMA(Cellular* cellular,
                                  ControlInterface* control_interface,
                                  ModemInfo* modem_info);
  ~CellularCapabilityUniversalCDMA() override;

  // Returns true if the service is activated.
  bool IsActivated() const;

  // Inherited from CellularCapability.
  void OnPropertiesChanged(
      const std::string& interface,
      const KeyValueStore& changed_properties,
      const std::vector<std::string>& invalidated_properties) override;
  bool IsServiceActivationRequired() const override;
  bool IsActivating() const override;
  void Activate(const std::string& carrier,
                Error* error,
                const ResultCallback& callback) override;
  void CompleteActivation(Error* error) override;
  bool IsRegistered() const override;
  void SetUnregistered(bool searching) override;
  void OnServiceCreated() override;
  std::string GetRoamingStateString() const override;
  void SetupConnectProperties(KeyValueStore* properties) override;

  // TODO(armansito): Remove once 3GPP is implemented in its own class
  void Register(const ResultCallback& callback) override;
  void RegisterOnNetwork(const std::string& network_id, Error* error,
                         const ResultCallback& callback) override;
  void RequirePIN(const std::string& pin, bool require, Error* error,
                  const ResultCallback& callback) override;
  void EnterPIN(const std::string& pin, Error* error,
                const ResultCallback& callback) override;
  void UnblockPIN(const std::string& unblock_code,
                  const std::string& pin, Error* error,
                  const ResultCallback& callback) override;
  void ChangePIN(const std::string& old_pin, const std::string& new_pin,
                 Error* error, const ResultCallback& callback) override;
  void Scan(Error* error,
            const ResultStringmapsCallback& callback) override;
  void OnSimPathChanged(const std::string& sim_path) override;

  void GetProperties() override;

 protected:
  // Inherited from CellularCapabilityUniversal.
  void InitProxies() override;
  void ReleaseProxies() override;
  void UpdateServiceOLP() override;

  // Post-payment activation handlers.
  void UpdatePendingActivationState() override;

 private:
  friend class CellularCapabilityUniversalCDMATest;
  FRIEND_TEST(CellularCapabilityUniversalCDMADispatcherTest,
              UpdatePendingActivationState);
  FRIEND_TEST(CellularCapabilityUniversalCDMAMainTest, ActivateAutomatic);
  FRIEND_TEST(CellularCapabilityUniversalCDMAMainTest, IsActivating);
  FRIEND_TEST(CellularCapabilityUniversalCDMAMainTest, IsRegistered);
  FRIEND_TEST(CellularCapabilityUniversalCDMAMainTest,
              IsServiceActivationRequired);
  FRIEND_TEST(CellularCapabilityUniversalCDMAMainTest,
              OnCDMARegistrationChanged);
  FRIEND_TEST(CellularCapabilityUniversalCDMAMainTest, PropertiesChanged);
  FRIEND_TEST(CellularCapabilityUniversalCDMAMainTest, UpdateServiceOLP);
  FRIEND_TEST(CellularCapabilityUniversalCDMAMainTest,
              UpdateServiceActivationStateProperty);

  // CDMA property change handlers
  virtual void OnModemCDMAPropertiesChanged(
      const KeyValueStore& properties,
      const std::vector<std::string>& invalidated_properties);
  void OnCDMARegistrationChanged(MMModemCdmaRegistrationState state_1x,
                                 MMModemCdmaRegistrationState state_evdo,
                                 uint32_t sid, uint32_t nid);

  // CDMA activation handlers
  void ActivateAutomatic();
  void OnActivationStateChangedSignal(uint32_t activation_state,
                                      uint32_t activation_error,
                                      const KeyValueStore& status_changes);
  void OnActivateReply(const ResultCallback& callback,
                       const Error& error);
  void HandleNewActivationStatus(uint32_t error);

  void UpdateServiceActivationStateProperty();

  static std::string GetActivationStateString(uint32_t state);
  static std::string GetActivationErrorString(uint32_t error);

  std::unique_ptr<mm1::ModemModemCdmaProxyInterface> modem_cdma_proxy_;
  // TODO(armansito): Should probably call this |weak_ptr_factory_| after
  // 3gpp refactor
  base::WeakPtrFactory<CellularCapabilityUniversalCDMA> weak_cdma_ptr_factory_;

  // CDMA ActivationState property.
  MMModemCdmaActivationState activation_state_;

  MMModemCdmaRegistrationState cdma_1x_registration_state_;
  MMModemCdmaRegistrationState cdma_evdo_registration_state_;

  uint32_t nid_;
  uint32_t sid_;

  DISALLOW_COPY_AND_ASSIGN(CellularCapabilityUniversalCDMA);
};

}  // namespace shill

#endif  // SHILL_CELLULAR_CELLULAR_CAPABILITY_UNIVERSAL_CDMA_H_