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Elixir SDK for the Stellar network.

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stellar_sdk lib tx_build soroban_authorized_function.ex
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lib/tx_build/soroban_authorized_function.ex 

defmodule Stellar.TxBuild.SorobanAuthorizedFunction do

  @moduledoc """

  `SorobanAuthorizedFunction` struct definition.

  """

  alias StellarBase.XDR.{SorobanAuthorizedFunction, SorobanAuthorizedFunctionType}

  alias Stellar.TxBuild.{CreateContractArgs, SorobanAuthorizedContractFunction}



  @behaviour Stellar.TxBuild.XDR



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

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

  @type type :: :contract_fn | :create_contract_host_fn

  @type value :: CreateContractArgs.t() | SorobanAuthorizedContractFunction.t()

  @type t :: %__MODULE__{type: type(), value: value()}



  defstruct [:type, :value]



  @allowed_types ~w(contract_fn create_contract_host_fn)a



  @impl true

  def new(value, opts \\ [])



  def new([{type, value}], _opts) when type in @allowed_types do

    with {:ok, value} <- validate_soroban_auth_function({type, value}) do

      %__MODULE__{type: type, value: value}

    end

  end



  def new(_value, _opts), do: {:error, :invalid_soroban_auth_function}



  @impl true

  def to_xdr(%__MODULE__{type: :contract_fn, value: value}) do

    type = SorobanAuthorizedFunctionType.new()



    value

    |> SorobanAuthorizedContractFunction.to_xdr()

    |> SorobanAuthorizedFunction.new(type)

  end



  def to_xdr(%__MODULE__{type: :create_contract_host_fn, value: value}) do

    type =

      SorobanAuthorizedFunctionType.new(:SOROBAN_AUTHORIZED_FUNCTION_TYPE_CREATE_CONTRACT_HOST_FN)



    value

    |> CreateContractArgs.to_xdr()

    |> SorobanAuthorizedFunction.new(type)

  end



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



  @spec validate_soroban_auth_function(tuple()) :: validation()

  defp validate_soroban_auth_function(

         {:contract_fn, %SorobanAuthorizedContractFunction{} = value}

       ),

       do: {:ok, value}



  defp validate_soroban_auth_function({:create_contract_host_fn, %CreateContractArgs{} = value}),

    do: {:ok, value}



  defp validate_soroban_auth_function({type, _value}), do: {:error, :"invalid_#{type}"}

end