change for local user search

lib/pleroma/user/search.ex

@@ -150,7 +150,7 @@ defp boost_search_rank_query(query, for_user) do
   @spec fts_search_subquery(User.t() | Ecto.Query.t(), String.t()) :: Ecto.Query.t()
   defp fts_search_subquery(query, term) do
     processed_query =
-      term
+      String.trim_trailing(term, "@" <> local_domain())
       |> String.replace(~r/\W+/, " ")
       |> String.trim()
       |> String.split()
@@ -192,6 +192,8 @@ defp fts_search_subquery(query, term) do
 
   @spec trigram_search_subquery(User.t() | Ecto.Query.t(), String.t()) :: Ecto.Query.t()
   defp trigram_search_subquery(query, term) do
+    term = String.trim_trailing(term, "@" <> local_domain())
+
     from(
       u in query,
       select_merge: %{
@@ -209,4 +211,6 @@ defp trigram_search_subquery(query, term) do
     )
     |> User.restrict_deactivated()
   end
+
+  defp local_domain, do: Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host])
 end

test/user_search_test.exs

@@ -217,5 +217,36 @@ test "excludes a blocked users from search result" do
       refute Enum.member?(account_ids, blocked_user2.id)
       assert length(account_ids) == 3
     end
+
+    test "local user has the same search_rank as for users with the same nickname, but another domain" do
+      user = insert(:user)
+      insert(:user, nickname: "lain@mastodon.social")
+      insert(:user, nickname: "lain")
+      insert(:user, nickname: "lain@pleroma.social")
+
+      assert User.search("lain@localhost", resolve: true, for_user: user)
+             |> Enum.each(fn u -> u.search_rank == 0.5 end)
+    end
+
+    test "localhost is the part of the domain" do
+      user = insert(:user)
+      insert(:user, nickname: "another@somedomain")
+      insert(:user, nickname: "lain")
+      insert(:user, nickname: "lain@examplelocalhost")
+
+      result = User.search("lain@examplelocalhost", resolve: true, for_user: user)
+      assert Enum.each(result, fn u -> u.search_rank == 0.5 end)
+      assert length(result) == 2
+    end
+
+    test "local user search with users" do
+      user = insert(:user)
+      local_user = insert(:user, nickname: "lain")
+      insert(:user, nickname: "another@localhost.com")
+      insert(:user, nickname: "localhost@localhost.com")
+
+      [result] = User.search("lain@localhost", resolve: true, for_user: user)
+      assert Map.put(result, :search_rank, nil) |> Map.put(:search_type, nil) == local_user
+    end
   end
 end