From f8e2945266ed84aa7611535b3c4f348d3d10cfed Mon Sep 17 00:00:00 2001
From: Hugo Peixoto <hugo.peixoto@gmail.com>
Date: Sun, 30 Jul 2023 01:13:02 +0100
Subject: [PATCH] Prioritize videos that haven't been downloaded yet

---
 main.rb | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/main.rb b/main.rb
index 1549f26..96c515b 100644
--- a/main.rb
+++ b/main.rb
@@ -54,7 +54,14 @@ get '/videos.json' do
   if amount > 100_000
     { error: "greedy" }.to_json
   else
-    { videos: Video.order("RANDOM()").limit(amount).pluck(:randname) }.to_json
+    videos = Video
+      .left_outer_joins(:downloads)
+      .group("randname")
+      .order("COUNT(1) ASC, RANDOM()")
+      .limit(amount)
+      .pluck(:randname)
+
+    { videos: videos }.to_json
   end
 end