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Elixir SDK for the Stellar network.

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stellar_sdk lib tx_build soroban_authorized_invocation.ex
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lib/tx_build/soroban_authorized_invocation.ex 

defmodule Stellar.TxBuild.SorobanAuthorizedInvocation do

  @moduledoc """

  `SorobanAuthorizedInvocation` struct definition.

  """



  alias Stellar.TxBuild.SorobanAuthorizedFunction

  alias StellarBase.XDR.{SorobanAuthorizedInvocation, SorobanAuthorizedInvocationList}



  @behaviour Stellar.TxBuild.XDR



  @type error :: {:error, atom()}

  @type validation :: {:ok, any()} | error()

  @type soroban_function :: SorobanAuthorizedFunction.t()

  @type sub_invocations :: list(SorobanAuthorizedInvocation.t())



  @type t :: %__MODULE__{function: soroban_function(), sub_invocations: sub_invocations()}



  defstruct [:function, :sub_invocations]



  @impl true

  def new(args, opts \\ [])



  def new(args, _opts) when is_list(args) do

    function = Keyword.get(args, :function)

    sub_invocations = Keyword.get(args, :sub_invocations)



    with {:ok, function} <- validate_function(function),

         {:ok, sub_invocations} <- validate_sub_invocations(sub_invocations) do

      %__MODULE__{function: function, sub_invocations: sub_invocations}

    end

  end



  def new(_args, _opts), do: {:error, :invalid_soroban_auth_invocation}



  @impl true

  def to_xdr(%__MODULE__{function: function, sub_invocations: sub_invocations}) do

    sub_invocations =

      sub_invocations

      |> Enum.map(&to_xdr/1)

      |> SorobanAuthorizedInvocationList.new()



    function

    |> SorobanAuthorizedFunction.to_xdr()

    |> SorobanAuthorizedInvocation.new(sub_invocations)

  end



  def to_xdr(_struct), do: {:error, :invalid_struct}



  @spec validate_function(function :: soroban_function()) :: validation()

  defp validate_function(%SorobanAuthorizedFunction{} = function), do: {:ok, function}

  defp validate_function(_function), do: {:error, :invalid_function}



  @spec validate_sub_invocations(sub_invocations :: sub_invocations()) :: validation()

  defp validate_sub_invocations(sub_invocations) do

    if Enum.all?(sub_invocations, &is_soroban_auth_invocation?/1),

      do: {:ok, sub_invocations},

      else: {:error, :invalid_sub_invocations}

  end



  @spec is_soroban_auth_invocation?(t()) :: boolean()

  defp is_soroban_auth_invocation?(%__MODULE__{}), do: true

  defp is_soroban_auth_invocation?(_struct), do: false

end