mobilizon/lib/service/activity/member.ex

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Elixir
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defmodule Mobilizon.Service.Activity.Member do
@moduledoc """
Insert a member activity
"""
alias Mobilizon.Actors
alias Mobilizon.Actors.{Actor, Member}
alias Mobilizon.Service.Activity
alias Mobilizon.Service.Workers.ActivityBuilder
@behaviour Activity
@impl Activity
def insert_activity(member, options \\ [])
def insert_activity(
%Member{parent_id: parent_id, id: member_id} = new_member,
options
) do
subject = Keyword.get(options, :subject)
with author_id <- get_author(new_member, options),
object_id <- if(subject == "member_removed", do: nil, else: to_string(member_id)) do
ActivityBuilder.enqueue(:build_activity, %{
"type" => "member",
"subject" => subject,
"subject_params" => get_subject_params(new_member, options),
"group_id" => parent_id,
"author_id" => author_id,
"object_type" => "member",
"object_id" => object_id,
"inserted_at" => DateTime.utc_now()
})
end
end
def insert_activity(_, _), do: {:ok, nil}
@impl Activity
def get_object(member_id) do
Actors.get_member(member_id)
end
@spec get_author(Member.t(), Member.t() | nil) :: integer()
defp get_author(%Member{actor_id: actor_id}, options) do
moderator = Keyword.get(options, :moderator)
if is_nil(moderator) do
actor_id
else
moderator.id
end
end
@spec get_subject_params(Member.t(), Keyword.t()) :: map()
defp get_subject_params(%Member{actor: actor, role: role, id: member_id}, options) do
# We may need to preload the member to make sure the actor exists
actor =
case actor do
%Actor{} = actor ->
actor
_ ->
case Actors.get_member(member_id) do
%Member{actor: actor} -> actor
_ -> nil
end
end
moderator = Keyword.get(options, :moderator)
old_member = Keyword.get(options, :old_member)
subject_params = %{
member_role: String.upcase(to_string(role))
}
subject_params =
if(is_nil(actor),
do: subject_params,
else:
subject_params
|> Map.put(
:member_actor_federated_username,
Actor.preferred_username_and_domain(actor)
)
|> Map.put(:member_actor_name, actor.name)
)
subject_params =
if(is_nil(old_member),
do: subject_params,
else: Map.put(subject_params, :old_role, String.upcase(to_string(old_member.role)))
)
if is_nil(moderator),
do: subject_params,
else:
Map.put(
subject_params,
:moderator_preferred_username,
Actor.preferred_username_and_domain(moderator)
)
end
end