Pull rank_videos into seperate thread

src/invidious.cr

@@ -109,26 +109,36 @@ threads.times do
   end
 end
 
-macro templated(filename)
+top_videos = [] of Video
-    render "src/views/#{{{filename}}}.ecr", "src/views/layout.ecr"
-  end
 
-get "/" do |env|
+spawn do
+  loop do
     top = rank_videos(PG_DB, 120)
+    client = get_client(pool)
 
     args = [] of String
     1..(top.size - 1).times { |i| args << "($#{i + 1}), " }
     args << "($#{top.size}) "
     args = args.join("")
 
-  videos = [] of Video
     PG_DB.query("SELECT * FROM videos d INNER JOIN (VALUES #{args}) v(id) USING (id)", top) do |rs|
       rs.each do
         video = rs.read(Video)
-      videos << video
+        top_videos << video
+      end
+    end
+
+    pool << client
+
+    sleep 5.minutes
   end
+end
+
+macro templated(filename)
+    render "src/views/#{{{filename}}}.ecr", "src/views/layout.ecr"
   end
 
+get "/" do |env|
   templated "index"
 end
 
@@ -259,7 +269,7 @@ get "/:path" do |env|
 end
 
 error 500 do |env|
-  "Error 500"
+  templated "index"
 end
 
 public_folder "assets"

src/views/index.ecr

@@ -2,7 +2,7 @@
 <title>Invidious</title>
 <% end %>
 
-<% videos.each_slice(4) do |slice| %>
+<% top_videos.each_slice(4) do |slice| %>
 <div class="pure-g">
 <% slice.each do |video| %>
     <% player_response = JSON.parse(video.info["player_response"]) %>