From a7de222b0f98b636b269993ba20fa69192060a12 Mon Sep 17 00:00:00 2001
From: 2 * r + 2 * t <61896496+soramanew@users.noreply.github.com>
Date: Tue, 1 Apr 2025 16:42:52 +1100
Subject: thumbnailer: use png

Use png instead of jpg for transparency
Also don't thumbnail images smaller than thumbnail size
---
 src/utils/thumbnailer.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/utils/thumbnailer.ts b/src/utils/thumbnailer.ts
index ffd1c67..7551870 100644
--- a/src/utils/thumbnailer.ts
+++ b/src/utils/thumbnailer.ts
@@ -14,7 +14,12 @@ export default class Thumbnailer {
 
     static getThumbPath(path: string) {
         const dir = path.slice(path.indexOf("/") + 1, path.lastIndexOf("/")).replaceAll("/", "-");
-        return `${this.thumbnailDir}/${dir}-${basename(path)}.jpg`;
+        return `${this.thumbnailDir}/${dir}-${basename(path)}.png`;
+    }
+
+    static async shouldThumbnail(path: string) {
+        const [width, height] = (await execAsync(`identify -ping -format "%w %h" ${path}`)).split(" ").map(parseInt);
+        return width > this.thumbWidth || height > this.thumbHeight;
     }
 
     static async #thumbnail(path: string, attempts: number): Promise<string> {
@@ -40,6 +45,8 @@ export default class Thumbnailer {
     }
 
     static async thumbnail(path: string): Promise<string> {
+        if (!(await this.shouldThumbnail(path))) return path;
+
         let thumbPath = this.getThumbPath(path);
 
         // If not lazy (i.e. force gen), delete existing thumbnail
-- 
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