From f99a7b2a8c8c480f175f15155e8616cdefb59300 Mon Sep 17 00:00:00 2001
From: leonklingele <5585491+leonklingele@users.noreply.github.com>
Date: Wed, 31 Jul 2019 16:48:45 +0200
Subject: [PATCH] Fix engagement for zero-view videos (#654)

Division by zero resulted in 'NaN'.

Fixes https://github.com/omarroth/invidious/issues/653.
---
 src/invidious.cr | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/invidious.cr b/src/invidious.cr
index 315363d7..c43af729 100644
--- a/src/invidious.cr
+++ b/src/invidious.cr
@@ -521,7 +521,11 @@ get "/watch" do |env|
   end
 
   rating = video.info["avg_rating"].to_f64
-  engagement = ((video.dislikes.to_f + video.likes.to_f)/video.views * 100)
+  if video.views > 0
+    engagement = ((video.dislikes.to_f + video.likes.to_f)/video.views * 100)
+  else
+    engagement = 0
+  end
 
   playability_status = video.player_response["playabilityStatus"]?
   if playability_status && playability_status["status"] == "LIVE_STREAM_OFFLINE" && !video.premiere_timestamp