From bcd76b7dcc1d52668aa680c3e7fdcb238dd4f29e Mon Sep 17 00:00:00 2001
From: Rodrigo Verdiani <rocverdiani@gmail.com>
Date: Mon, 27 Apr 2026 09:28:47 -0300
Subject: [PATCH] feat: implement imgproxy integration with responsive image
 handling and loading states

---
 .../chapter/components/ChapterImage.tsx       | 37 +++++++++++++++++++
 src/features/home/components/MangaCard.tsx    | 10 ++---
 src/pages/Chapter.tsx                         | 23 ++++--------
 src/pages/Manga.tsx                           | 11 +++---
 src/utils/imgproxy.ts                         | 33 +++++++++++++++++
 5 files changed, 89 insertions(+), 25 deletions(-)
 create mode 100644 src/features/chapter/components/ChapterImage.tsx
 create mode 100644 src/utils/imgproxy.ts

diff --git a/src/features/chapter/components/ChapterImage.tsx b/src/features/chapter/components/ChapterImage.tsx
new file mode 100644
index 0000000..58d2b35
--- /dev/null
+++ b/src/features/chapter/components/ChapterImage.tsx
@@ -0,0 +1,37 @@
+import { buildImgproxyUrl, generateSrcSet } from "@/utils/imgproxy.ts";
+import { Skeleton } from "@/components/ui/skeleton";
+import { cn } from "@/lib/utils";
+import { useState } from "react";
+
+interface ChapterImageProps {
+    imageKey: string;
+    pageNumber: number;
+    infiniteScroll?: boolean;
+}
+
+export const ChapterImage = ({ imageKey, pageNumber, infiniteScroll }: ChapterImageProps) => {
+    const [isLoading, setIsLoading] = useState(true);
+
+    return (
+        <div className={cn(
+            "relative w-full overflow-hidden",
+            isLoading && (infiniteScroll ? "min-h-[600px] aspect-[2/3]" : "aspect-[2/3]")
+        )}>
+            {isLoading && (
+                <Skeleton className="absolute inset-0 z-10 h-full w-full" />
+            )}
+            <img
+                src={buildImgproxyUrl(imageKey, 1200)}
+                srcSet={generateSrcSet(imageKey)}
+                sizes="(max-width: 896px) 100vw, 896px"
+                className={cn(
+                    "w-full h-auto block m-0 p-0 border-none transition-opacity duration-300",
+                    isLoading ? "opacity-0" : "opacity-100"
+                )}
+                alt={`Page ${pageNumber}`}
+                loading="lazy"
+                onLoad={() => setIsLoading(false)}
+            />
+        </div>
+    );
+};
\ No newline at end of file
diff --git a/src/features/home/components/MangaCard.tsx b/src/features/home/components/MangaCard.tsx
index 6b32389..48e6d6e 100644
--- a/src/features/home/components/MangaCard.tsx
+++ b/src/features/home/components/MangaCard.tsx
@@ -17,6 +17,8 @@ import { Skeleton } from "@/components/ui/skeleton.tsx";
 import { useAuth } from "@/contexts/AuthContext.tsx";
 import { cn } from "@/lib/utils.ts";
 import { formatToTwoDigitsDateRange } from "@/utils/dateFormatter.ts";
+import { buildImgproxyUrl } from "@/utils/imgproxy.ts";
+
 
 interface MangaCardProps {
 	manga: MangaListDTO;
@@ -89,11 +91,9 @@ export const MangaCard = ({ manga, queryKey }: MangaCardProps) => {
 					<Link to={`/manga/${manga.id}`}>
 						<img
 							src={
-								(manga.coverImageKey &&
-									import.meta.env.VITE_OMV_BASE_URL +
-										"/" +
-										manga.coverImageKey) ||
-								"/placeholder.svg"
+								manga.coverImageKey
+									? buildImgproxyUrl(manga.coverImageKey)
+									: "/placeholder.svg"
 							}
 							alt={manga.title}
 							onLoad={() => setIsImageLoading(false)}
diff --git a/src/pages/Chapter.tsx b/src/pages/Chapter.tsx
index f9abfa1..d58bd31 100644
--- a/src/pages/Chapter.tsx
+++ b/src/pages/Chapter.tsx
@@ -14,6 +14,7 @@ import {
 } from "@/components/ui/dialog";
 import { useReadingProgressSync } from "@/features/chapter/hooks/useReadingProgressSync.ts";
 import { MangaLoadingState } from "@/components/MangaLoadingState.tsx";
+import { ChapterImage } from "@/features/chapter/components/ChapterImage";
 
 const Chapter = () => {
 	const navigate = useNavigate();
@@ -420,11 +421,10 @@ const Chapter = () => {
 									target.style.aspectRatio = "auto";
 								}}
 							>
-								<img
-									src={`${import.meta.env.VITE_OMV_BASE_URL}/${key}`}
-									className="w-full h-auto block m-0 p-0 border-none"
-									alt={`Page ${idx + 1}`}
-									loading="lazy"
+								<ChapterImage
+									imageKey={key}
+									pageNumber={idx + 1}
+									infiniteScroll
 								/>
 							</div>
 						))}
@@ -468,16 +468,9 @@ const Chapter = () => {
 					/* ------------------------------------------------------------------ */
 					<>
 						<div className="relative mx-auto mb-8 overflow-hidden rounded-lg border border-border bg-muted">
-							<img
-								src={
-									import.meta.env.VITE_OMV_BASE_URL +
-									"/" +
-									images[currentPage - 1] || "/placeholder.svg"
-								}
-								alt={`Page ${currentPage}`}
-								width={1000}
-								height={1400}
-								className="h-auto w-full"
+							<ChapterImage
+								imageKey={images[currentPage - 1]}
+								pageNumber={currentPage}
 							/>
 						</div>
 
diff --git a/src/pages/Manga.tsx b/src/pages/Manga.tsx
index 9fc876b..461d5b8 100644
--- a/src/pages/Manga.tsx
+++ b/src/pages/Manga.tsx
@@ -43,6 +43,8 @@ import { MangaChapter } from "@/features/manga/MangaChapter.tsx";
 import { useScrollPersistence } from "@/hooks/useScrollPersistence.ts";
 import { formatToTwoDigitsDateRange } from "@/utils/dateFormatter.ts";
 import { Skeleton } from "@/components/ui/skeleton";
+import { buildImgproxyUrl } from "@/utils/imgproxy.ts";
+
 import { Spinner } from "@/components/ui/spinner";
 
 import { useGetProgress } from "@/api/generated/reading-progress/reading-progress.ts";
@@ -265,12 +267,11 @@ const Manga = () => {
 							<div className="relative aspect-2/3 overflow-hidden rounded-lg border border-border bg-muted w-full">
 								<img
 									src={
-										(mangaData.data?.coverImageKey &&
-											import.meta.env.VITE_OMV_BASE_URL +
-											"/" +
-											mangaData.data?.coverImageKey) ||
-										"/placeholder.svg"
+										mangaData.data?.coverImageKey
+											? buildImgproxyUrl(mangaData.data?.coverImageKey)
+											: "/placeholder.svg"
 									}
+
 									alt={mangaData.data?.title ?? ""}
 									className="absolute inset-0 w-full h-full object-cover"
 								/>
diff --git a/src/utils/imgproxy.ts b/src/utils/imgproxy.ts
new file mode 100644
index 0000000..0cf0c35
--- /dev/null
+++ b/src/utils/imgproxy.ts
@@ -0,0 +1,33 @@
+export const buildImgproxyUrl = (sourceUrl: string, width?: number): string => {
+	const baseUrl = import.meta.env.VITE_IMGPROXY_BASE_URL;
+
+	if (!baseUrl) {
+		// Fallback to original URL logic
+		const originalBase = import.meta.env.VITE_OMV_BASE_URL;
+		if (sourceUrl.startsWith("http")) {
+			return sourceUrl;
+		}
+		return `${originalBase}/${sourceUrl}`;
+	}
+
+	// rs:fit:${width}:0:0 to resize preserving aspect ratio, capping width at `width`
+	// If width is provided, we resize, otherwise we keep original dimensions.
+	const parts = [];
+	if (width) {
+		parts.push(`rs:fit:${width}:0:0`);
+	}
+	parts.push("f:avif");
+
+	const options = parts.join("/");
+
+	return `${baseUrl}/insecure/${options}/plain/s3://${import.meta.env.VITE_S3_BUCKET}/${sourceUrl}`;
+};
+
+export const generateSrcSet = (
+	sourceUrl: string,
+	widths: number[] = [400, 800, 1200, 1800],
+): string => {
+	return widths
+		.map((width) => `${buildImgproxyUrl(sourceUrl, width)} ${width}w`)
+		.join(", ");
+};