Handle not playing as not an error

lib/sergei/consumer.ex

@@ -65,7 +65,13 @@ defmodule Sergei.Consumer do
           %{type: 4, data: %{content: msg, flags: 2 ** 6}}
 
         {:error, msg} ->
-          %{type: 4, data: %{content: msg, flags: 2 ** 6}}
+          %{
+            type: 4,
+            data: %{
+              content: "error: #{msg}\n\nPlease contact <@447533152567689226> for help",
+              flags: 2 ** 6
+            }
+          }
       end
 
     Api.create_interaction_response!(interaction, response)
@@ -109,6 +115,9 @@ defmodule Sergei.Consumer do
       :ok ->
         {:ok, "Pausing..."}
 
+      :not_playing ->
+        {:ok, "I'm not playing anything right now."}
+
       {:error, err} ->
         Logger.error("Failed to pause media: #{err}")
         {:error, "This is embarrasing..."}
@@ -121,6 +130,9 @@ defmodule Sergei.Consumer do
       :ok ->
         {:ok, "Resuming..."}
 
+      :not_playing ->
+        {:ok, "I'm not playing anything right now."}
+
       {:error, err} ->
         Logger.error("Failed to resume media: #{err}")
         {:error, "This is embarrasing..."}

lib/sergei/player.ex

@@ -20,10 +20,12 @@ defmodule Sergei.Player do
     GenServer.call(__MODULE__, {:play, guild_id, channel_id, url})
   end
 
+  @spec pause(integer()) :: :ok | :not_playing | {:error, String.t()}
   def pause(guild_id) do
     GenServer.call(__MODULE__, {:pause, guild_id})
   end
 
+  @spec resume(integer()) :: :ok | :not_playing | {:error, String.t()}
   def resume(guild_id) do
     GenServer.call(__MODULE__, {:resume, guild_id})
   end
@@ -57,7 +59,7 @@ defmodule Sergei.Player do
 
   @impl true
   def handle_call({_, guild_id}, _from, state) when not is_map_key(state, guild_id) do
-    {:reply, {:error, "I'm not playing anything right now"}, state}
+    {:reply, :not_playing, state}
   end
 
   @impl true