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# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.MastodonAPI.MastodonAPI do
import Ecto.Query
import Ecto.Changeset
alias Pleroma.Notification
alias Pleroma.Pagination
alias Pleroma.ScheduledActivity
alias Pleroma.User
alias Pleroma.Web.CommonAPI
@spec follow(User.t(), User.t(), map) :: {:ok, User.t()} | {:error, String.t()}
def follow(follower, followed, params \\ %{}) do
result =
if not User.following?(follower, followed) do
CommonAPI.follow(follower, followed)
else
{:ok, follower, followed, nil}
end
with {:ok, follower, _followed, _} <- result do
options = cast_params(params)
set_reblogs_visibility(options[:reblogs], result)
{:ok, follower}
end
end
defp set_reblogs_visibility(false, {:ok, follower, followed, _}) do
CommonAPI.hide_reblogs(follower, followed)
end
defp set_reblogs_visibility(_, {:ok, follower, followed, _}) do
CommonAPI.show_reblogs(follower, followed)
end
@spec get_followers(User.t(), map()) :: list(User.t())
def get_followers(user, params \\ %{}) do
user
|> User.get_followers_query()
|> Pagination.fetch_paginated(params)
end
def get_friends(user, params \\ %{}) do
user
|> User.get_friends_query()
|> Pagination.fetch_paginated(params)
end
def get_notifications(user, params \\ %{}) do
options = cast_params(params)
user
|> Notification.for_user_query(options)
|> restrict(:include_types, options)
|> restrict(:exclude_types, options)
|> restrict(:account_ap_id, options)
|> Pagination.fetch_paginated(params)
end
def get_scheduled_activities(user, params \\ %{}) do
user
|> ScheduledActivity.for_user_query()
|> Pagination.fetch_paginated(params)
end
defp cast_params(params) do
param_types = %{
exclude_types: {:array, :string},
include_types: {:array, :string},
exclude_visibilities: {:array, :string},
reblogs: :boolean,
with_muted: :boolean,
account_ap_id: :string
}
changeset = cast({%{}, param_types}, params, Map.keys(param_types))
changeset.changes
end
defp restrict(query, :include_types, %{include_types: mastodon_types = [_ | _]}) do
where(query, [n], n.type in ^mastodon_types)
end
defp restrict(query, :exclude_types, %{exclude_types: mastodon_types = [_ | _]}) do
where(query, [n], n.type not in ^mastodon_types)
end
defp restrict(query, :account_ap_id, %{account_ap_id: account_ap_id}) do
where(query, [n, a], a.actor == ^account_ap_id)
end
defp restrict(query, _, _), do: query
end
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