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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.EctoType.ActivityPub.ObjectValidators.Recipients do
   6   use Ecto.Type
   7
   8   alias Pleroma.EctoType.ActivityPub.ObjectValidators.ObjectID
   9
  10   def type, do: {:array, ObjectID}
  11
  12   def cast(object) when is_binary(object) do
  13     cast([object])
  14   end
  15
  16   def cast(object) when is_map(object) do
  17     case ObjectID.cast(object) do
  18       {:ok, data} -> {:ok, data}
  19       _ -> :error
  20     end
  21   end
  22
  23   def cast(data) when is_list(data) do
  24     data
  25     |> Enum.reduce_while({:ok, []}, fn element, {:ok, list} ->
  26       case ObjectID.cast(element) do
  27         {:ok, id} ->
  28           {:cont, {:ok, [id | list]}}
  29
  30         _ ->
  31           {:cont, {:ok, list}}
  32       end
  33     end)
  34   end
  35
  36   def cast(data) do
  37     {:error, data}
  38   end
  39
  40   def dump(data) do
  41     {:ok, data}
  42   end
  43
  44   def load(data) do
  45     {:ok, data}
  46   end
  47 end