Update public-apps/mysterious.livemd

public-apps/mysterious.livemd

@@ -269,16 +269,20 @@ case File.exists?(file_name) do
   _ -> :ok
 end
 
-binary =
-  Kino.FS.file_path(file_name)
-  |> File.read!()
+binary = File.read!(file_name)
 
 extract_today = fn binary ->
-  [result | _] = :erlang.binary_to_term(binary)
+  case byte_size(binary) do
+    0 ->
+      [result | _] = :erlang.binary_to_term(binary)
 
-  case result.date == Date.utc_today() do
-    true -> {:ok, result.data}
-    _ -> {:no, false}
+      case result.date == Date.utc_today() do
+        true -> {:ok, result.data}
+        _ -> {:no, false}
+      end
+
+    _ ->
+      {:no, false}
   end
 end
 
@@ -478,6 +482,8 @@ today_data =
 Kino.Frame.new(placeholder: false)
 ```
 
+<!-- livebook:{"output":true} -->
+
 ```elixir
 random_message =
   today_data
@@ -489,4 +495,4 @@ send(message_pid, {:message, random_message})
 Kino.Frame.new(placeholder: false)
 ```
 
-<!-- livebook:{"offset":11741,"stamp":{"token":"XCP.vc3mSQeIkJ_U7bagwkvIUj0CSd_xYPlg90_EKSaJdabfZXO3hHUC7y3mKwe-siZE75IRQbiEnP83fb1pV3yqAyYu-WvRjroWPp_8zP4BXMFEEbM_ldiT21ED3Pe9zFTfSKsHs6uxnEPfSGs7zflaGO4chw-V","version":2}} -->
+<!-- livebook:{"offset":12331,"stamp":{"token":"XCP.BqoZIlPPKBOel3GLwywYrcW0jU44QDIMsLIFhYMtsv16Hx4vMvkpKjOubYLksi6HtnjaMJaAXFk-uZwsBBHSt2_8Kpd4Sm5uTBpcMtdf8aw2J-K5BYJSubC9rr6Jlg-Px8FK","version":2}} -->