From e68ad369e9399d33f58678d2a3271cd631c2fe6a Mon Sep 17 00:00:00 2001
From: sophie <sofija@duck.com>
Date: Thu, 19 Sep 2024 01:41:53 +0300
Subject: [PATCH] 1200 byte savings in some cases with gifs

---
 src/plugins/image-optimization.ts | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/src/plugins/image-optimization.ts b/src/plugins/image-optimization.ts
index d4fc641..5353275 100644
--- a/src/plugins/image-optimization.ts
+++ b/src/plugins/image-optimization.ts
@@ -35,15 +35,30 @@ export default class ImageOptimization extends Plugin {
       data = await sharp(file).png({ quality: 100 }).toBuffer();
     }
     if (type == "gif") {
-      // not heavy optimizations, not a fan tbf, but whatever :shrug:
-      data = await sharp(file, { animated: true })
-        .gif({ colors: 16 })
-        .toBuffer();
+      const gif = sharp(file, { animated: true });
+      const pageCount = (await gif.metadata()).pages;
+      if (pageCount == 1) {
+        data = await sharp(file, { animated: false })
+          .gif({ colors: 16 })
+          .toBuffer();
+      } else {
+        data = await sharp(file, { animated: true })
+          .gif({ colors: 16 })
+          .toBuffer();
+      }
     }
 
-    if(nonOptimized.byteLength < data.byteLength) {
-      if(this.logging) {
-        console.log("❌ " + filePath + "("+nonOptimized.byteLength+"B) optimized was " + data.byteLength + "B. It has been skipped.");
+    if (nonOptimized.byteLength < data.byteLength) {
+      if (this.logging) {
+        console.log(
+          "❌ " +
+            filePath +
+            "(" +
+            nonOptimized.byteLength +
+            "B) optimized was " +
+            data.byteLength +
+            "B. It has been skipped."
+        );
       }
       data = nonOptimized;
     }