Move API under GraphQL context

lib/graphql/api/utils.ex

@@ -0,0 +1,43 @@
+defmodule Mobilizon.GraphQL.API.Utils do
+  @moduledoc """
+  Utils for API.
+  """
+
+  alias Mobilizon.Config
+  alias Mobilizon.Service.Formatter
+
+  @doc """
+  Creates HTML content from text and mentions
+  """
+  @spec make_content_html(String.t(), list(), String.t()) :: String.t()
+  def make_content_html(text, additional_tags, content_type) do
+    with {text, mentions, tags} <- format_input(text, content_type, []) do
+      {text, mentions, additional_tags ++ Enum.map(tags, fn {_, tag} -> tag end)}
+    end
+  end
+
+  def format_input(text, "text/plain", options) do
+    text
+    |> Formatter.html_escape("text/plain")
+    |> Formatter.linkify(options)
+    |> (fn {text, mentions, tags} -> {String.replace(text, ~r/\r?\n/, "<br>"), mentions, tags} end).()
+  end
+
+  def format_input(text, "text/html", options) do
+    text
+    |> Formatter.html_escape("text/html")
+    |> Formatter.linkify(options)
+  end
+
+  def make_report_content_text(nil), do: {:ok, nil}
+
+  def make_report_content_text(comment) do
+    max_size = Config.get([:instance, :max_report_comment_size], 1000)
+
+    if String.length(comment) <= max_size do
+      {:ok, Formatter.html_escape(comment, "text/plain")}
+    else
+      {:error, "Comment must be up to #{max_size} characters"}
+    end
+  end
+end