// Copyright 2022 Google LLC. All Rights Reserved. This file and proprietary
// source code may only be used and distributed under the Widevine License
// Agreement.
#ifndef WVCDM_CORE_POLICY_TIMERS_V18_H_
#define WVCDM_CORE_POLICY_TIMERS_V18_H_

#include <inttypes.h>

#include "license_protocol.pb.h"
#include "policy_timers.h"
#include "wv_cdm_types.h"
#include "wv_class_utils.h"

namespace wvcdm {
// OEMCrypto v18 includes support for renewing licenses on load by using
// |initial_renewal_delay_base| and TimerDelayBase.
//
// Backward compatibility may be needed if
//  * OEMCrypto has not been upgraded to v18
//  * Licenses were persisted before the device was upgraded to v18
class PolicyTimersV18 : public PolicyTimers {
 public:
  PolicyTimersV18() = default;
  WVCDM_DISALLOW_COPY_AND_MOVE(PolicyTimersV18);

  ~PolicyTimersV18() override {}

  // UpdateLicense is used in handling a license response, a renewal response,
  // or when restoring or releasing a persistent license.
  // In a renewal the response may only contain policy fields that have
  // changed. In this case an exact copy is not what we want to happen.
  // |renewal_start_time_| is set to the time mentioned in the renewal
  // response.
  // UpdateLicense will return false if |license_start_time| is not
  // present or playback is not allowed due to policy or timer duration
  // expiration.
  bool UpdateLicense(int64_t current_time,
                     const video_widevine::License& license) override;

  // Call this on first decrypt to set the start of playback.
  void BeginDecryption(int64_t current_time) override;

  // Renewal related methods
  bool HasRenewalDelayExpired(int64_t current_time) override;

 private:
  // Indicates whether this is an initial license or a renewal
  bool license_renewal_ = false;
  bool renew_on_first_decrypt_ = false;
  bool can_renew_ = false;
};  // class PolicyTimersV18
}  // namespace wvcdm
#endif  // WVCDM_CORE_POLICY_TIMERS_V18_H_