text: // Copyright (c) 2009-2010 Satoshi Nakamoto
  // Copyright (c) 2009-2018 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #ifndef EMRALS_WALLET_FEES_H
  #define EMRALS_WALLET_FEES_H
  
  #include <amount.h>
  
  class CCoinControl;
  class CFeeRate;
  class CWallet;
  struct FeeCalculation;
  
  /**
   * Return the minimum required absolute fee for this size
   * based on the required fee rate
   */
  CAmount GetRequiredFee(const CWallet& wallet, unsigned int nTxBytes);
  
  /**
   * Estimate the minimum fee considering user set parameters
   * and the required fee
   */
  CAmount GetMinimumFee(const CWallet& wallet, unsigned int nTxBytes, const CCoinControl& coin_control, FeeCalculation* feeCalc);
  
  /**
   * Return the minimum required feerate taking into account the
   * minimum relay feerate and user set minimum transaction feerate
   */
  CFeeRate GetRequiredFeeRate(const CWallet& wallet);
  
  /**
   * Estimate the minimum fee rate considering user set parameters
   * and the required fee
   */
  CFeeRate GetMinimumFeeRate(const CWallet& wallet, const CCoinControl& coin_control, FeeCalculation* feeCalc);
  
  /**
   * Return the maximum feerate for discarding change.
   */
  CFeeRate GetDiscardRate(const CWallet& wallet);
  
  #endif // EMRALS_WALLET_FEES_H
  