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Elixir SDK for the Stellar network.
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lib/tx_build/ledger/data.ex
defmodule Stellar.TxBuild.Ledger.Data do
@moduledoc """
Ledger `Data` struct definition.
"""
alias StellarBase.XDR.{Data, String64}
alias Stellar.TxBuild.AccountID
@behaviour Stellar.TxBuild.XDR
@type account_id :: String.t()
@type data_name :: String.t()
@type validation :: {:ok, any()} | {:error, atom()}
@type t :: %__MODULE__{account_id: AccountID.t(), data_name: data_name()}
defstruct [:account_id, :data_name]
@impl true
def new(args, opts \\ [])
def new(args, _opts) do
account_id = Keyword.get(args, :account_id)
data_name = Keyword.get(args, :data_name)
with {:ok, account_id} <- validate_account_id(account_id),
{:ok, data_name} <- validate_data_name(data_name) do
%__MODULE__{account_id: account_id, data_name: data_name}
end
end
@impl true
def to_xdr(%__MODULE__{account_id: account_id, data_name: data_name}) do
data_name = String64.new(data_name)
account_id
|> AccountID.to_xdr()
|> Data.new(data_name)
end
@spec validate_account_id(account_id :: account_id()) :: validation()
defp validate_account_id(account_id) do
case AccountID.new(account_id) do
%AccountID{} = account_id -> {:ok, account_id}
_error -> {:error, :invalid_account}
end
end
@spec validate_data_name(data_name :: data_name()) :: validation()
defp validate_data_name(data_name) when byte_size(data_name) <= 64, do: {:ok, data_name}
defp validate_data_name(_data_name), do: {:error, :invalid_data_name}
end