From c148adb225f1676bf464a7d483d5876175813f2e Mon Sep 17 00:00:00 2001
From: Louis Dalibard <louis.dalibard@gmail.com>
Date: Mon, 10 Jun 2024 22:25:05 +0200
Subject: [PATCH] fix: while waiting some other thread could have generated the
 thumbnail

---
 thumbnail/thumbnail.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/thumbnail/thumbnail.go b/thumbnail/thumbnail.go
index b5e5379..d5203c1 100644
--- a/thumbnail/thumbnail.go
+++ b/thumbnail/thumbnail.go
@@ -72,6 +72,14 @@ func GetThumbnail(c *fiber.Ctx, completePath string) {
 		return
 	}
 	WaitForAvailable()
+	/* While waiting some other thread could have generated the thumbnail */
+	thumbnailCacheMutex.RLock()
+	bytesThumb, ok = thumbnailCache[completePath]
+	thumbnailCacheMutex.RUnlock()
+	if ok {
+		c.Write(bytesThumb)
+		return
+	}
 
 	fileExt := filepath.Ext(completePath)
 	if !slices.Contains(SupportedFileTypes, fileExt) {