refactor: simplify Picture component and remove unused R2 image handling, add figcaption

src/components/ui/Picture.astro

@@ -1,54 +1,16 @@
 ---
-import { R2_BASE } from "@/config/r2.mjs";
-
 export interface Props {
   src: string;
   alt: string;
   class?: string;
-  sizes?: string;
   fetchpriority?: "high" | "low" | "auto";
   loading?: "lazy" | "eager";
 }
 
-const {
-  src,
-  alt,
-  class: className,
-  sizes = "(max-width: 640px) 100vw, (max-width: 1024px) 80vw, 1200px",
-  fetchpriority,
-  loading,
-} = Astro.props;
-
-const WIDTHS = [480, 800, 1200];
-
-const isR2 = src.includes(R2_BASE.replace("https://", ""));
-
-function buildTransformUrl(src: string, width: number) {
-  const path = src.replace(R2_BASE, "");
-  return `${R2_BASE}/cdn-cgi/image/width=${width},format=auto,onerror=redirect${path}`;
-}
-
-const srcset = WIDTHS.map((w) => `${buildTransformUrl(src, w)} ${w}w`).join(
-  ", ",
-);
-const defaultSrc = isR2 ? buildTransformUrl(src, 800) : src;
+const { src, alt, class: className, fetchpriority, loading } = Astro.props;
 ---
 
-{
-  isR2 ? (
-    <picture>
-      <source type="image/webp" srcset={srcset} sizes={sizes} />
-      <img
-        src={defaultSrc}
-        srcset={srcset}
-        sizes={sizes}
-        alt={alt}
-        class={className}
-        fetchpriority={fetchpriority}
-        loading={loading}
-      />
-    </picture>
-  ) : (
+<picture>
   <img
     src={src}
     alt={alt}
@@ -56,5 +18,4 @@ const defaultSrc = isR2 ? buildTransformUrl(src, 800) : src;
     fetchpriority={fetchpriority}
     loading={loading}
   />
-  )
-}
+</picture>

src/plugins/rehype-picture-webp.mjs

@@ -1,14 +1,4 @@
 import { visit } from "unist-util-visit";
-import { R2_BASE } from "../config/r2.mjs";
-
-const WIDTHS = [480, 800, 1200];
-const SIZES = "(max-width: 640px) 100vw, (max-width: 1024px) 80vw, 1200px";
-
-function buildTransformUrl(src, width) {
-  // Extract path từ full URL
-  const path = src.replace(R2_BASE, "");
-  return `${R2_BASE}/cdn-cgi/image/width=${width},format=auto,onerror=redirect${path}`;
-}
 
 export function rehypePictureWebp() {
   return (tree) => {
@@ -16,46 +6,41 @@ export function rehypePictureWebp() {
       if (node.tagName !== "img") return;
       if (!parent || index == null) return;
 
-      const src = node.properties?.src || "";
-
-      // Chỉ xử lý ảnh từ R2
-      if (!src.startsWith(R2_BASE)) return;
-
-      // Tạo srcset với nhiều width
-      const srcset = WIDTHS.map(
-        (w) => `${buildTransformUrl(src, w)} ${w}w`,
-      ).join(", ");
-
-      const defaultSrc = buildTransformUrl(src, 800);
-
-      parent.children[index] = {
+      const alt = node.properties?.alt || node.alt || "";
+      const pictureNode = {
         type: "element",
         tagName: "picture",
         properties: {},
         children: [
-          {
-            type: "element",
-            tagName: "source",
-            properties: {
-              type: "image/webp",
-              srcSet: srcset,
-              sizes: SIZES,
-            },
-            children: [],
-          },
           {
             ...node,
             properties: {
               ...node.properties,
-              src: defaultSrc,
-              srcSet: srcset,
-              sizes: SIZES,
               loading: "lazy",
               decoding: "async",
             },
           },
         ],
       };
+
+      if (alt) {
+        parent.children[index] = {
+          type: "element",
+          tagName: "figure",
+          properties: {},
+          children: [
+            pictureNode,
+            {
+              type: "element",
+              tagName: "figcaption",
+              properties: {},
+              children: [{ type: "text", value: alt }],
+            },
+          ],
+        };
+      } else {
+        parent.children[index] = pictureNode;
+      }
     });
   };
 }