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Elixir SDK for the Stellar network.
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lib/tx_build/sc_address.ex
defmodule Stellar.TxBuild.SCAddress do
@moduledoc """
`SCAddress` struct definition.
"""
import Stellar.TxBuild.Validations, only: [validate_account_id: 1]
@behaviour Stellar.TxBuild.XDR
alias StellarBase.XDR.{
SCAddressType,
Hash,
SCAddress
}
alias Stellar.TxBuild.AccountID
@type validation :: {:ok, any()} | {:error, atom()}
@type value :: binary()
@type t :: %__MODULE__{
type: atom(),
value: value()
}
@allowed_types ~w(account contract)a
defstruct [:type, :value]
@impl true
def new(args, opts \\ nil)
def new([{type, value}], _opts) when type in @allowed_types do
with {:ok, _value} <- validate_sc_address({type, value}) do
%__MODULE__{
type: type,
value: value
}
end
end
def new(_args, _opts), do: {:error, :invalid_sc_address}
@impl true
def to_xdr(%__MODULE__{type: :account, value: value}) do
type = SCAddressType.new(:SC_ADDRESS_TYPE_ACCOUNT)
value
|> AccountID.new()
|> AccountID.to_xdr()
|> SCAddress.new(type)
end
def to_xdr(%__MODULE__{type: :contract, value: value}) do
type = SCAddressType.new(:SC_ADDRESS_contract)
value
|> Hash.new()
|> SCAddress.new(type)
end
@spec validate_sc_address(tuple :: tuple()) :: validation()
defp validate_sc_address({:account, value}) do
case validate_account_id({:account, value}) do
{:ok, account_id} -> {:ok, account_id}
{:error, _reason} -> {:error, :invalid_account_id}
end
end
defp validate_sc_address({:contract, value}) when is_binary(value), do: {:ok, value}
defp validate_sc_address({:contract, _value}), do: {:error, :invalid_contract_hash}
end