Make search a callback

lib/pleroma/search/database_search.ex

@@ -15,6 +15,7 @@ defmodule Pleroma.Search.DatabaseSearch do
 
   @behaviour Pleroma.Search.SearchBackend
 
+  @impl true
   def search(user, search_query, options \\ []) do
     index_type = if Pleroma.Config.get([:database, :rum_enabled]), do: :rum, else: :gin
     limit = Enum.min([Keyword.get(options, :limit), 40])

lib/pleroma/search/meilisearch.ex

@@ -75,6 +75,7 @@ def meili_delete!(path) do
       )
   end
 
+  @impl true
   def search(user, query, options \\ []) do
     limit = Enum.min([Keyword.get(options, :limit), 40])
     offset = Keyword.get(options, :offset, 0)

lib/pleroma/search/search_backend.ex

@@ -1,10 +1,17 @@
 defmodule Pleroma.Search.SearchBackend do
+  @doc """
+  Search statuses with a query, restricting to only those the user should have access to.
+  """
+  @callback search(user :: Pleroma.User.t(), query :: String.t(), options :: [any()]) :: [
+              Pleroma.Activity.t()
+            ]
+
   @doc """
   Add the object associated with the activity to the search index.
 
   The whole activity is passed, to allow filtering on things such as scope.
   """
-  @callback add_to_index(activity :: Pleroma.Activity.t()) :: nil
+  @callback add_to_index(activity :: Pleroma.Activity.t()) :: :ok | {:error, any()}
 
   @doc """
   Remove the object from the index.
@@ -13,5 +20,5 @@ defmodule Pleroma.Search.SearchBackend do
   is what contains the actual content and there is no need for fitlering when removing
   from index.
   """
-  @callback remove_from_index(object :: Pleroma.Object.t()) :: nil
+  @callback remove_from_index(object :: Pleroma.Object.t()) :: {:ok, any()} | {:error, any()}
 end