From 7b54b603b71b6521735f67acb9df43c6473cd849 Mon Sep 17 00:00:00 2001
From: QIU SHENGMING <Kero64@126.com>
Date: Mon, 12 Jan 2026 23:33:14 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=20rehype-image-optimization.?=
 =?UTF-8?q?mjs?=
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---
 rehype-image-optimization.mjs | 37 +++++++++++++++++++++++------------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/rehype-image-optimization.mjs b/rehype-image-optimization.mjs
index d751c7c..128e02a 100644
--- a/rehype-image-optimization.mjs
+++ b/rehype-image-optimization.mjs
@@ -4,29 +4,31 @@ export function rehypeImageOptimization() {
   return (tree) => {
     visit(tree, 'element', (node) => {
       
-      // 1. 基础防御
+      // 1. 基础防御：只处理 img 标签且有属性的
       if (node.tagName !== 'img' || !node.properties) return;
       
       const src = node.properties.src;
+      // 没有 src 或者是相对路径导致解析失败的，直接跳过
       if (!src) return;
 
       let urlObj;
       try {
         urlObj = new URL(src);
       } catch (e) {
+        // 相对路径兜底优化
         node.properties.loading = 'lazy';
         node.properties.decoding = 'async';
         return; 
       }
 
-      // 2. 业务逻辑：只处理 img.mckero.com
+      // 2. 业务逻辑：只处理 img.mckero.com (你的橱窗)
       if (urlObj.hostname !== 'img.mckero.com') {
         node.properties.loading = 'lazy';
         node.properties.decoding = 'async';
         return;
       }
 
-      // 3. 业务逻辑：跳过 WebP/AVIF
+      // 3. 业务逻辑：跳过 WebP/AVIF (Worker 处理不了)
       const pathname = urlObj.pathname.toLowerCase();
       if (pathname.endsWith('.webp') || pathname.endsWith('.avif')) {
         node.properties.loading = 'lazy';
@@ -34,33 +36,44 @@ export function rehypeImageOptimization() {
         return; 
       }
 
-      // 4. 构造 Worker 链接
-      const generateWorkerUrl = (originalSrc, width) => {
+      // ============================================================
+      // 🚨 核心修正：适配 Photon 的 action 参数 🚨
+      // 格式：action=resize!宽,高,模式
+      // 高度设为 0 代表自适应，模式 2 代表缩放
+      // ============================================================
+      const generateWorkerUrl = (originalSrc, targetWidth) => {
         const workerUrl = new URL('https://opt.mckero.com/');
+        
+        // 1. 设置 url 参数 (原图地址)
         workerUrl.searchParams.set('url', originalSrc);
-        if (width) workerUrl.searchParams.set('width', width);
+        
+        // 2. 设置 action 参数 (这才是 Worker 能看懂的指令！)
+        if (targetWidth) {
+          // 例如：resize!800,0,2
+          workerUrl.searchParams.set('action', `resize!${targetWidth},0,2`);
+        }
+        
         return workerUrl.toString();
       };
 
       // ============================================================
-      // 最终版配置：四大金刚 (500, 800, 1200, 1600)
+      // 生成四档 srcset (500, 800, 1200, 1600)
       // ============================================================
 
-      // 默认 src: 给 800w (兼容性最好)
+      // 默认 src: 给 800w (兼容性兜底)
       node.properties.src = generateWorkerUrl(src, 800);
 
-      // 生成 srcset
       const s500 = generateWorkerUrl(src, 500);
       const s800 = generateWorkerUrl(src, 800);
       const s1200 = generateWorkerUrl(src, 1200);
-      const s1600 = generateWorkerUrl(src, 1600); // 新增：MacBook/4K 专用
+      const s1600 = generateWorkerUrl(src, 1600);
       
       node.properties.srcset = `${s500} 500w, ${s800} 800w, ${s1200} 1200w, ${s1600} 1600w`;
 
-      // sizes 逻辑 (保持不变)
-      // 手机端占满屏，电脑端最大 800px
+      // sizes 逻辑 (手机满屏，电脑最大800)
       node.properties.sizes = '(max-width: 600px) 100vw, 800px';
       
+      // 标准优化属性
       node.properties.loading = 'lazy';
       node.properties.decoding = 'async';
     });