mastodon api: implement follow_requests_count

lib/pleroma/web/mastodon_api/views/account_view.ex

@@ -166,6 +166,7 @@ defp do_render("account.json", %{user: user} = opts) do
     |> maybe_put_settings_store(user, opts[:for], opts)
     |> maybe_put_chat_token(user, opts[:for], opts)
     |> maybe_put_activation_status(user, opts[:for])
+    |> maybe_put_follow_requests_count(user, opts[:for])
   end
 
   defp username_from_nickname(string) when is_binary(string) do
@@ -174,6 +175,21 @@ defp username_from_nickname(string) when is_binary(string) do
 
   defp username_from_nickname(_), do: nil
 
+  defp maybe_put_follow_requests_count(
+         data,
+         %User{id: user_id} = user,
+         %User{id: user_id}
+       ) do
+    count =
+      User.get_follow_requests(user)
+      |> length()
+
+    data
+    |> Kernel.put_in([:follow_requests_count], count)
+  end
+
+  defp maybe_put_follow_requests_count(data, _, _), do: data
+
   defp maybe_put_settings(
          data,
          %User{id: user_id} = user,

test/web/mastodon_api/views/account_view_test.exs

@@ -419,4 +419,79 @@ test "shows actual follower/following count to the account owner" do
              } = AccountView.render("account.json", %{user: user, for: user})
     end
   end
+
+  describe "follow requests counter" do
+    test "shows zero when no follow requests are pending" do
+      user = insert(:user)
+
+      assert %{follow_requests_count: 0} =
+               AccountView.render("account.json", %{user: user, for: user})
+
+      other_user = insert(:user)
+      {:ok, _other_user, user, _activity} = CommonAPI.follow(other_user, user)
+
+      assert %{follow_requests_count: 0} =
+               AccountView.render("account.json", %{user: user, for: user})
+    end
+
+    test "shows non-zero when follow requests are pending" do
+      user = insert(:user, %{info: %{locked: true}})
+
+      assert %{locked: true} = AccountView.render("account.json", %{user: user, for: user})
+
+      other_user = insert(:user)
+      {:ok, _other_user, user, _activity} = CommonAPI.follow(other_user, user)
+
+      assert %{locked: true, follow_requests_count: 1} =
+               AccountView.render("account.json", %{user: user, for: user})
+    end
+
+    test "decreases when accepting a follow request" do
+      user = insert(:user, %{info: %{locked: true}})
+
+      assert %{locked: true} = AccountView.render("account.json", %{user: user, for: user})
+
+      other_user = insert(:user)
+      {:ok, other_user, user, _activity} = CommonAPI.follow(other_user, user)
+
+      assert %{locked: true, follow_requests_count: 1} =
+               AccountView.render("account.json", %{user: user, for: user})
+
+      {:ok, _other_user} = CommonAPI.accept_follow_request(other_user, user)
+
+      assert %{locked: true, follow_requests_count: 0} =
+               AccountView.render("account.json", %{user: user, for: user})
+    end
+
+    test "decreases when rejecting a follow request" do
+      user = insert(:user, %{info: %{locked: true}})
+
+      assert %{locked: true} = AccountView.render("account.json", %{user: user, for: user})
+
+      other_user = insert(:user)
+      {:ok, other_user, user, _activity} = CommonAPI.follow(other_user, user)
+
+      assert %{locked: true, follow_requests_count: 1} =
+               AccountView.render("account.json", %{user: user, for: user})
+
+      {:ok, _other_user} = CommonAPI.reject_follow_request(other_user, user)
+
+      assert %{locked: true, follow_requests_count: 0} =
+               AccountView.render("account.json", %{user: user, for: user})
+    end
+
+    test "shows non-zero when historical unapproved requests are present" do
+      user = insert(:user, %{info: %{locked: true}})
+
+      assert %{locked: true} = AccountView.render("account.json", %{user: user, for: user})
+
+      other_user = insert(:user)
+      {:ok, _other_user, user, _activity} = CommonAPI.follow(other_user, user)
+
+      {:ok, user} = User.update_info(user, &User.Info.user_upgrade(&1, %{locked: false}))
+
+      assert %{locked: false, follow_requests_count: 1} =
+               AccountView.render("account.json", %{user: user, for: user})
+    end
+  end
 end