content_language_map.ex
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content_language_map.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2023 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.EctoType.ActivityPub.ObjectValidators.ContentLanguageMap do
	use Ecto.Type

	import Pleroma.EctoType.ActivityPub.ObjectValidators.LanguageCode,
	only: [good_locale_code?: 1]

	def type, do: :map

	def cast(%{} = object) do
	with {status, %{} = data} when status in [:modified, :ok] <- validate_map(object) do
	{:ok, data}
	else
	{_, nil} -> {:ok, nil}
	{:error, _} -> :error
	end
	end

	def cast(_), do: :error

	def dump(data), do: {:ok, data}

	def load(data), do: {:ok, data}

	defp validate_map(%{} = object) do
	{status, data} =
	object
	\|> Enum.reduce({:ok, %{}}, fn
	{lang, value}, {status, acc} when is_binary(lang) and is_binary(value) ->
	if good_locale_code?(lang) do
	{status, Map.put(acc, lang, value)}
	else
	{:modified, acc}
	end

	_, {_status, acc} ->
	{:modified, acc}
	end)

	if data == %{} do
	{status, nil}
	else
	{status, data}
	end
	end
	end