From 0af807ac9239bfe3eb9b73a76cf50c078b03bf93 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C4=99drzej=20Stuczy=C5=84ski?=
 <jedrzej.stuczynski@gmail.com>
Date: Tue, 7 May 2024 11:47:59 +0100
Subject: [PATCH] fixed overflow subtraction

---
 common/nyxd-scraper/src/block_processor/mod.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/common/nyxd-scraper/src/block_processor/mod.rs b/common/nyxd-scraper/src/block_processor/mod.rs
index cd142c6687..e6af88cdda 100644
--- a/common/nyxd-scraper/src/block_processor/mod.rs
+++ b/common/nyxd-scraper/src/block_processor/mod.rs
@@ -245,13 +245,18 @@ impl BlockProcessor {
             .try_into()
             .unwrap_or_default();
 
-        let to_prune = last_to_keep - lowest;
+        let to_prune = last_to_keep.saturating_sub(lowest);
         match to_prune {
             v if v > 1000 => warn!("approximately {v} blocks worth of data will be pruned"),
             v if v > 100 => info!("approximately {v} blocks worth of data will be pruned"),
+            v if v == 0 => trace!("no blocks to prune"),
             v => debug!("approximately {v} blocks worth of data will be pruned"),
         }
 
+        if to_prune == 0 {
+            return Ok(());
+        }
+
         self.storage
             .prune_storage(last_to_keep, self.last_processed_height)
             .await?;