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akkoma/lib/pleroma/web/mastodon_api/views/poll_view.ex
2020-04-22 14:06:39 +02:00

80 lines
2.4 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.MastodonAPI.PollView do
use Pleroma.Web, :view
alias Pleroma.Web.CommonAPI.Utils
def render("show.json", %{object: object, multiple: multiple, options: options} = params) do
{end_time, expired} = end_time_and_expired(object)
{options, votes_count} = options_and_votes_count(options)
%{
# Mastodon uses separate ids for polls, but an object can't have
# more than one poll embedded so object id is fine
id: to_string(object.id),
expires_at: end_time,
expired: expired,
multiple: multiple,
votes_count: votes_count,
voters_count: (multiple || nil) && voters_count(object),
options: options,
voted: voted?(params),
emojis: Pleroma.Web.MastodonAPI.StatusView.build_emojis(object.data["emoji"])
}
end
def render("show.json", %{object: object} = params) do
case object.data do
%{"anyOf" => options} when is_list(options) ->
render(__MODULE__, "show.json", Map.merge(params, %{multiple: true, options: options}))
%{"oneOf" => options} when is_list(options) ->
render(__MODULE__, "show.json", Map.merge(params, %{multiple: false, options: options}))
_ ->
nil
end
end
defp end_time_and_expired(object) do
case object.data["closed"] || object.data["endTime"] do
end_time when is_binary(end_time) ->
end_time = NaiveDateTime.from_iso8601!(end_time)
expired = NaiveDateTime.compare(end_time, NaiveDateTime.utc_now()) == :lt
{Utils.to_masto_date(end_time), expired}
_ ->
{nil, false}
end
end
defp options_and_votes_count(options) do
Enum.map_reduce(options, 0, fn %{"name" => name} = option, count ->
current_count = option["replies"]["totalItems"] || 0
{%{
title: name,
votes_count: current_count
}, current_count + count}
end)
end
defp voters_count(%{data: %{"voters" => [_ | _] = voters}}) do
length(voters)
end
defp voters_count(_), do: 0
defp voted?(%{object: object} = opts) do
if opts[:for] do
existing_votes = Pleroma.Web.ActivityPub.Utils.get_existing_votes(opts[:for].ap_id, object)
existing_votes != [] or opts[:for].ap_id == object.data["actor"]
else
false
end
end
end