defmodule Mobilizon.Web.Views.Utils do
@moduledoc """
Utils for views
"""
alias Mobilizon.Service.Metadata.Utils, as: MetadataUtils
import Mobilizon.Web.Gettext, only: [dgettext: 2]
import Plug.Conn, only: [put_status: 2, halt: 1]
# sobelow_skip ["Traversal.FileModule"]
@spec inject_tags(Enum.t(), String.t()) :: {:ok, {:safe, String.t()}} | {:error, atom()}
def inject_tags(tags, locale \\ "en") do
with path <- Path.join(Application.app_dir(:mobilizon, "priv/static"), "index.html"),
{:exists, true} <- {:exists, File.exists?(path)},
{:ok, index_content} <- File.read(path),
safe <- do_replacements(index_content, MetadataUtils.stringify_tags(tags), locale) do
{:ok, {:safe, safe}}
else
{:exists, false} -> {:error, :index_not_found}
{:error, error} when is_atom(error) -> {:error, error}
end
end
@spec return_error(Plug.Conn.t(), atom()) :: Plug.Conn.t()
def return_error(conn, error) do
conn
|> put_status(500)
|> Phoenix.Controller.put_view(Mobilizon.Web.ErrorView)
|> Phoenix.Controller.render("500.html", %{details: details(error)})
|> halt()
end
defp details(:index_not_found) do
[dgettext("errors", "Index file not found. You need to recompile the front-end.")]
end
defp details(_) do
[]
end
@spec replace_meta(String.t(), String.t()) :: String.t()
defp replace_meta(index_content, tags) do
index_content
|> String.replace("", tags)
|> String.replace("", tags)
end
@spec do_replacements(String.t(), String.t(), String.t()) :: String.t()
defp do_replacements(index_content, tags, locale) do
index_content
|> replace_meta(tags)
|> String.replace(
"",
""
)
end
@spec get_locale(Plug.Conn.t()) :: String.t()
def get_locale(%Plug.Conn{assigns: assigns}) do
Map.get(assigns, :locale)
end
@ltr_languages ["ar", "ae", "he", "fa", "ku", "ur"]
@spec get_language_direction(String.t()) :: String.t()
defp get_language_direction(locale) when locale in @ltr_languages, do: "rtl"
defp get_language_direction(_locale), do: "ltr"
end