Initial commit

lib/iban_ex/error.ex

@@ -0,0 +1,33 @@
+defmodule IbanEx.Error do
+  @moduledoc """
+
+  """
+
+  @type error() ::
+          :unsupported_country_code
+          | :invalid_format
+          | :invalid_length
+          | :invalid_checksum
+          | :can_not_parse_map
+          | atom()
+  @type errors() :: [error()]
+  @errors [
+    :unsupported_country_code,
+    :invalid_format,
+    :invalid_length,
+    :invalid_checksum,
+    :can_not_parse_map
+  ]
+
+  @messages [
+    unsupported_country_code: "Unsupported country code",
+    invalid_format: "IBAN violates required format",
+    invalid_length: "IBAN violates the required length",
+    invalid_checksum: "IBAN's checksum is invalid",
+    can_not_parse_map: "Can't parse map to IBAN struct"
+  ]
+
+  @spec message(error()) :: String.t()
+  def message(error) when error in @errors, do: @messages[error]
+  def message(_error), do: "Undefined error"
+end