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Elixir SDK for the Stellar network.

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stellar_sdk lib tx_build sc_error.ex
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lib/tx_build/sc_error.ex 

defmodule Stellar.TxBuild.SCError do

  @moduledoc """

  `ScErrorCode` struct definition.

  """

  alias StellarBase.XDR.{SCError, SCErrorType, SCErrorCode}



  @behaviour Stellar.TxBuild.XDR



  @type code ::

          :arith_domain

          | :index_bounds

          | :invalid_input

          | :missing_value

          | :existing_value

          | :exceeded_limit

          | :invalid_action

          | :internal_error

          | :unexpected_type

          | :unexpected_size

  @type type ::

          :contract

          | :wasm_vm

          | :context

          | :storage

          | :object

          | :crypto

          | :events

          | :budget

          | :code

          | :auth



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



  defstruct [:type, :code]



  @types %{

    contract: :SCE_CONTRACT,

    wasm_vm: :SCE_WASM_VM,

    context: :SCE_CONTEXT,

    storage: :SCE_STORAGE,

    object: :SCE_OBJECT,

    crypto: :SCE_CRYPTO,

    events: :SCE_EVENTS,

    budget: :SCE_BUDGET,

    code: :SCE_VALUE,

    auth: :SCE_AUTH

  }



  @codes %{

    arith_domain: :SCEC_ARITH_DOMAIN,

    index_bounds: :SCEC_INDEX_BOUNDS,

    invalid_input: :SCEC_INVALID_INPUT,

    missing_value: :SCEC_MISSING_VALUE,

    existing_value: :SCEC_EXISTING_VALUE,

    exceeded_limit: :SCEC_EXCEEDED_LIMIT,

    invalid_action: :SCEC_INVALID_ACTION,

    internal_error: :SCEC_INTERNAL_ERROR,

    unexpected_type: :SCEC_UNEXPECTED_TYPE,

    unexpected_size: :SCEC_UNEXPECTED_SIZE

  }



  @impl true

  def new(args, opts \\ [])



  def new([{type, code}], _opts)

      when is_map_key(@types, type) and is_map_key(@codes, code) do

    %__MODULE__{type: type, code: code}

  end



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



  @impl true

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

    with {:ok, type} <- retrieve_xdr_type(type),

         {:ok, code} <- retrieve_xdr_code(code) do

      code = SCErrorCode.new(code)



      type

      |> SCErrorType.new()

      |> SCError.new(code)

    end

  end



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



  defp retrieve_xdr_type(type), do: {:ok, Map.get(@types, type)}

  defp retrieve_xdr_code(code), do: {:ok, Map.get(@codes, code)}

end