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bitcoinlib

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Generate private/public keys and addresses for the bitcoin network

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bitcoinlib lib key hd derivation_path parser change.ex
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lib/key/hd/derivation_path/parser/change.ex 

defmodule BitcoinLib.Key.HD.DerivationPath.Parser.Change do

  # https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#change

  @receiving_chain_value 0

  @receiving_chain_atom :receiving_chain

  @change_chain_value 1

  @change_chain_atom :change_chain



  @invalid_atom :invalid



  @doc """

  Converts an integer into an atom representing the receiving or change chain



  ## Examples

      iex> BitcoinLib.Key.HD.DerivationPath.Parser.Change.parse(0)

      :receiving_chain

  """

  @spec parse(integer()) :: :receiving_chain | :change_chain | :invalid

  def parse(value) when is_integer(value) do

    case value do

      @receiving_chain_value -> @receiving_chain_atom

      @change_chain_value -> @change_chain_atom

      _ -> @invalid_atom

    end

  end



  def parse(hash) do

    hash

  end

end