From 4b885767502632c4f347953933afa388858f0085 Mon Sep 17 00:00:00 2001
From: Raj Rajhans <me@rajrajhans.com>
Date: Sun, 17 Mar 2024 20:33:20 +0530
Subject: [PATCH] Change to :os.system_time to avoid using invalid time while
 checking token expiry (#169)

---
 lib/goth.ex       | 4 ++--
 lib/goth/token.ex | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/goth.ex b/lib/goth.ex
index 787faf0..6e41f22 100644
--- a/lib/goth.ex
+++ b/lib/goth.ex
@@ -159,7 +159,7 @@ defmodule Goth do
   ]
 
   defp read_from_ets(name) do
-    now = System.system_time(:second)
+    now = System.os_time(:second)
 
     case Registry.lookup(@registry, name) do
       [{_pid, %Token{expires: expires}}] when expires <= now -> nil
@@ -267,7 +267,7 @@ defmodule Goth do
 
   defp store_and_schedule_refresh(state, token) do
     put(state.name, token)
-    time_in_seconds = max(token.expires - System.system_time(:second) - state.refresh_before, 0)
+    time_in_seconds = max(token.expires - System.os_time(:second) - state.refresh_before, 0)
 
     Process.send_after(self(), :refresh, time_in_seconds * 1000)
   end
diff --git a/lib/goth/token.ex b/lib/goth/token.ex
index 17e6912..8b52bce 100644
--- a/lib/goth/token.ex
+++ b/lib/goth/token.ex
@@ -398,7 +398,7 @@ defmodule Goth.Token do
 
   defp build_token(%{"access_token" => _} = attrs) do
     %__MODULE__{
-      expires: System.system_time(:second) + attrs["expires_in"],
+      expires: System.os_time(:second) + attrs["expires_in"],
       token: attrs["access_token"],
       type: attrs["token_type"],
       scope: attrs["scope"],