From af8ca54d3eef7294e4aa31b6a8181f1bfc86b1f1 Mon Sep 17 00:00:00 2001
From: Claudio Ortolina <cloud8421@gmail.com>
Date: Sat, 25 Oct 2025 10:21:21 +0100
Subject: [PATCH] Run Repo vacuum via Oban scheduled job

This way if there's any resource contention to obtain a db connection,
Oban can manage retries.
---
 config/config.exs                       |  4 +++-
 lib/music_library/worker/repo_vacuum.ex | 10 ++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 lib/music_library/worker/repo_vacuum.ex

diff --git a/config/config.exs b/config/config.exs
index f4a6066a..10978c78 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -85,7 +85,9 @@ config :music_library, Oban,
      crontab: [
        # every 12 hours
        {"0 */12 * * *", MusicLibrary.Worker.ApplyScrobbleRules},
-       {"0 */12 * * *", MusicLibrary.Worker.PruneAssetCache}
+       {"0 */12 * * *", MusicLibrary.Worker.PruneAssetCache},
+       # every day at 3 am,
+       {"0 3 * * *", MusicLibrary.Worker.RepoVacuum}
      ]}
   ]
 
diff --git a/lib/music_library/worker/repo_vacuum.ex b/lib/music_library/worker/repo_vacuum.ex
new file mode 100644
index 00000000..910ea037
--- /dev/null
+++ b/lib/music_library/worker/repo_vacuum.ex
@@ -0,0 +1,10 @@
+defmodule MusicLibrary.Worker.RepoVacuum do
+  use Oban.Worker, queue: :heavy_writes, max_attempts: 3
+
+  require Logger
+
+  @impl Oban.Worker
+  def perform(_) do
+    MusicLibrary.Repo.vacuum()
+  end
+end