133 lines
3.6 KiB
Elixir
133 lines
3.6 KiB
Elixir
defmodule Mobilizon.Service.ActivityPub.Converters.Event do
|
|
@moduledoc """
|
|
Event converter
|
|
|
|
This module allows to convert events from ActivityStream format to our own internal one, and back
|
|
"""
|
|
alias Mobilizon.Actors
|
|
alias Mobilizon.Media
|
|
alias Mobilizon.Media.Picture
|
|
alias Mobilizon.Actors.Actor
|
|
alias Mobilizon.Events.Event, as: EventModel
|
|
alias Mobilizon.Service.ActivityPub.Converter
|
|
alias Mobilizon.Events
|
|
alias Mobilizon.Events.Tag
|
|
alias Mobilizon.Addresses
|
|
alias Mobilizon.Addresses.Address
|
|
|
|
@behaviour Converter
|
|
|
|
require Logger
|
|
|
|
@doc """
|
|
Converts an AP object data to our internal data structure
|
|
"""
|
|
@impl Converter
|
|
@spec as_to_model_data(map()) :: map()
|
|
def as_to_model_data(object) do
|
|
Logger.debug("event as_to_model_data")
|
|
|
|
with {:actor, {:ok, %Actor{id: actor_id}}} <-
|
|
{:actor, Actors.get_actor_by_url(object["actor"])},
|
|
{:address, address_id} <-
|
|
{:address, get_address(object["location"])},
|
|
{:tags, tags} <- {:tags, fetch_tags(object["tag"])} do
|
|
picture_id =
|
|
with true <- Map.has_key?(object, "attachment") && length(object["attachment"]) > 0,
|
|
%Picture{id: picture_id} <-
|
|
Media.get_picture_by_url(
|
|
object["attachment"]
|
|
|> hd
|
|
|> Map.get("url")
|
|
|> hd
|
|
|> Map.get("href")
|
|
) do
|
|
picture_id
|
|
else
|
|
_ -> nil
|
|
end
|
|
|
|
{:ok,
|
|
%{
|
|
"title" => object["name"],
|
|
"description" => object["content"],
|
|
"organizer_actor_id" => actor_id,
|
|
"picture_id" => picture_id,
|
|
"begins_on" => object["startTime"],
|
|
"category" => object["category"],
|
|
"url" => object["id"],
|
|
"uuid" => object["uuid"],
|
|
"tags" => tags,
|
|
"physical_address_id" => address_id
|
|
}}
|
|
else
|
|
err ->
|
|
{:error, err}
|
|
end
|
|
end
|
|
|
|
defp get_address(%{"id" => url} = map) when is_map(map) and is_binary(url) do
|
|
Logger.debug("Address with an URL, let's check against our own database")
|
|
|
|
case Addresses.get_address_by_url(url) do
|
|
%Address{id: address_id} ->
|
|
address_id
|
|
|
|
_ ->
|
|
Logger.debug("not in our database, let's try to create it")
|
|
map = Map.put(map, "url", map["id"])
|
|
do_get_address(map)
|
|
end
|
|
end
|
|
|
|
defp get_address(map) when is_map(map) do
|
|
do_get_address(map)
|
|
end
|
|
|
|
defp get_address(nil), do: nil
|
|
|
|
defp do_get_address(map) do
|
|
map = Mobilizon.Service.ActivityPub.Converters.Address.as_to_model_data(map)
|
|
|
|
case Addresses.create_address(map) do
|
|
{:ok, %Address{id: address_id}} ->
|
|
address_id
|
|
|
|
_ ->
|
|
nil
|
|
end
|
|
end
|
|
|
|
defp fetch_tags(tags) do
|
|
Enum.reduce(tags, [], fn tag, acc ->
|
|
with true <- tag["type"] == "Hashtag",
|
|
{:ok, %Tag{} = tag} <- Events.get_or_create_tag(tag) do
|
|
acc ++ [tag]
|
|
else
|
|
_err ->
|
|
acc
|
|
end
|
|
end)
|
|
end
|
|
|
|
@doc """
|
|
Convert an event struct to an ActivityStream representation
|
|
"""
|
|
@impl Converter
|
|
@spec model_to_as(EventModel.t()) :: map()
|
|
def model_to_as(%EventModel{} = event) do
|
|
%{
|
|
"type" => "Event",
|
|
"to" => ["https://www.w3.org/ns/activitystreams#Public"],
|
|
"title" => event.title,
|
|
"actor" => event.organizer_actor.url,
|
|
"uuid" => event.uuid,
|
|
"category" => event.category,
|
|
"summary" => event.description,
|
|
"publish_at" => (event.publish_at || event.inserted_at) |> DateTime.to_iso8601(),
|
|
"updated_at" => event.updated_at |> DateTime.to_iso8601(),
|
|
"id" => event.url
|
|
}
|
|
end
|
|
end
|