1 files changed, 43 insertions, 1 deletions
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index 9da674982..6a267ee58 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -9,6 +9,8 @@ defmodule Pleroma.User do
   alias Pleroma.Web.{OStatus, Websub, OAuth}
   alias Pleroma.Web.ActivityPub.{Utils, ActivityPub}
 
+  @type t :: %__MODULE__{}
+
   schema "users" do
     field(:bio, :string)
     field(:email, :string)
@@ -23,6 +25,7 @@ defmodule Pleroma.User do
     field(:local, :boolean, default: true)
     field(:follower_address, :string)
     field(:search_distance, :float, virtual: true)
+    field(:tags, {:array, :string}, default: [])
     field(:last_refreshed_at, :naive_datetime)
     has_many(:notifications, Notification)
     embeds_one(:info, Pleroma.User.Info)
@@ -216,7 +219,7 @@ defmodule Pleroma.User do
     end
   end
 
-  def maybe_follow(%User{} = follower, %User{info: info} = followed) do
+  def maybe_follow(%User{} = follower, %User{info: _info} = followed) do
     if not following?(follower, followed) do
       follow(follower, followed)
     else
@@ -278,6 +281,7 @@ defmodule Pleroma.User do
     end
   end
 
+  @spec following?(User.t(), User.t()) :: boolean
   def following?(%User{} = follower, %User{} = followed) do
     Enum.member?(follower.following, followed.follower_address)
   end
@@ -815,4 +819,42 @@ defmodule Pleroma.User do
 
     CommonUtils.format_input(bio, mentions, tags, "text/plain") |> Formatter.emojify(emoji)
   end
+
+  def tag(user_identifiers, tags) when is_list(user_identifiers) do
+    Repo.transaction(fn ->
+      for user_identifier <- user_identifiers, do: tag(user_identifier, tags)
+    end)
+  end
+
+  def tag(nickname, tags) when is_binary(nickname),
+    do: tag(User.get_by_nickname(nickname), tags)
+
+  def tag(%User{} = user, tags),
+    do: update_tags(user, Enum.uniq(user.tags ++ normalize_tags(tags)))
+
+  def untag(user_identifiers, tags) when is_list(user_identifiers) do
+    Repo.transaction(fn ->
+      for user_identifier <- user_identifiers, do: untag(user_identifier, tags)
+    end)
+  end
+
+  def untag(nickname, tags) when is_binary(nickname),
+    do: untag(User.get_by_nickname(nickname), tags)
+
+  def untag(%User{} = user, tags), do: update_tags(user, user.tags -- normalize_tags(tags))
+
+  defp update_tags(%User{} = user, new_tags) do
+    {:ok, updated_user} =
+      user
+      |> change(%{tags: new_tags})
+      |> Repo.update()
+
+    updated_user
+  end
+
+  defp normalize_tags(tags) do
+    [tags]
+    |> List.flatten()
+    |> Enum.map(&String.downcase(&1))
+  end
 end