text: # Copyright (c) 2020 Emanuele Bellocchia
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  
  
  # Imports
  from bip_utils.base58 import Base58Encoder, Base58Alphabets
  from bip_utils.bech32 import BchBech32Encoder
  from bip_utils.conf   import BitcoinConf
  from bip_utils.utils  import CryptoUtils, KeyUtils
  
  
  class P2PKH:
      """ P2PKH class. It allows the Pay-to-Public-Key-Hash address generation. """
  
      @staticmethod
      def ToAddress(pub_key_bytes, net_addr_ver = BitcoinConf.P2PKH_NET_VER.Main(), base58_alph = Base58Alphabets.BITCOIN):
          """ Get address in P2PKH format.
  
          Args:
              pub_key_bytes (bytes)                  : Public key bytes
              net_addr_ver (bytes, optional)         : Net address version, default is Bitcoin main network
              base58_alph (Base58Alphabets, optional): Base58 alphabet, Bitcoin by default
  
          Returns:
              str: Address string
  
          Raises:
              ValueError: If the key is not a public compressed key
          """
          if not KeyUtils.IsPublicCompressed(pub_key_bytes):
              raise ValueError("Public compressed key is required for P2PKH")
  
          return Base58Encoder.CheckEncode(net_addr_ver + CryptoUtils.Hash160(pub_key_bytes), base58_alph)
  
  
  class BchP2PKH:
      """ Bitcoin Cash P2PKH class. It allows the Bitcoin Cash P2PKH generation. """
  
      @staticmethod
      def ToAddress(pub_key_bytes, hrp, net_addr_ver):
          """ Get address in Bitcoin Cash P2PKH format.
  
          Args:
              pub_key_bytes (bytes): Public key bytes
              hrp (str)            : HRP
              net_addr_ver (int)   : Net address version
  
          Returns:
              str: Address string
  
          Raises:
              ValueError: If key is not a public compressed key
          """
          if not KeyUtils.IsPublicCompressed(pub_key_bytes):
              raise ValueError("Public compressed key is required for Bitcoin Cash")
  
          return BchBech32Encoder.Encode(hrp, net_addr_ver, CryptoUtils.Hash160(pub_key_bytes))
  