chore: update pnpm-lock.yaml to reflect lockfile v6, update dependencies versions, and remove redundant nested dependency details

frontend/src/components/content-list.tsx

@@ -4,6 +4,7 @@ import * as React from "react";
 import { useInfiniteScroll } from "@/app/(dashboard)/_hooks/use-infinite-scroll";
 import { ContentCard } from "@/components/content-card";
 import { Spinner } from "@/components/ui/spinner";
+import { useAudio } from "@/providers/audio-provider";
 import type { Content, PaginatedResponse } from "@/types/content";
 
 interface ContentListProps {
@@ -15,10 +16,48 @@ interface ContentListProps {
 }
 
 export function ContentList({ fetchFn, title }: ContentListProps) {
+	const { setActiveVideo } = useAudio();
 	const [contents, setContents] = React.useState<Content[]>([]);
 	const [loading, setLoading] = React.useState(true);
 	const [offset, setOffset] = React.useState(0);
 	const [hasMore, setHasMore] = React.useState(true);
+	const containerRef = React.useRef<HTMLDivElement>(null);
+
+	// biome-ignore lint/correctness/useExhaustiveDependencies: On a besoin de contents pour ré-attacher l'observer quand la liste change
+	React.useEffect(() => {
+		const observer = new IntersectionObserver(
+			(entries) => {
+				// On cherche l'entrée avec le plus grand ratio d'intersection parmi celles qui dépassent le seuil
+				let bestEntry: IntersectionObserverEntry | null = null;
+				let maxRatio = 0;
+
+				for (const entry of entries) {
+					if (entry.isIntersecting && entry.intersectionRatio > maxRatio) {
+						maxRatio = entry.intersectionRatio;
+						bestEntry = entry;
+					}
+				}
+
+				if (bestEntry && maxRatio >= 0.6) {
+					const contentId = bestEntry.target.getAttribute("data-content-id");
+					if (contentId) {
+						setActiveVideo(contentId);
+					}
+				}
+			},
+			{
+				threshold: [0, 0.2, 0.4, 0.6, 0.8, 1.0], // Plusieurs seuils pour une détection plus fine du "meilleur"
+				root: containerRef.current,
+			},
+		);
+
+		const elements = containerRef.current?.querySelectorAll("[data-content-id]");
+		elements?.forEach((el) => {
+			observer.observe(el);
+		});
+
+		return () => observer.disconnect();
+	}, [setActiveVideo, contents]);
 
 	const fetchInitial = React.useCallback(async () => {
 		setLoading(true);
@@ -51,7 +90,11 @@ export function ContentList({ fetchFn, title }: ContentListProps) {
 				offset: offset + 10,
 			});
 
-			setContents((prev) => [...prev, ...response.data]);
+			setContents((prev) => {
+				const newIds = new Set(response.data.map((item) => item.id));
+				const filteredPrev = prev.filter((item) => !newIds.has(item.id));
+				return [...filteredPrev, ...response.data];
+			});
 			setOffset((prev) => prev + 10);
 			setHasMore(response.data.length === 10);
 		} catch (error) {
@@ -68,11 +111,18 @@ export function ContentList({ fetchFn, title }: ContentListProps) {
 	});
 
 	return (
-		<div className="max-w-7xl mx-auto py-8 px-4 space-y-8">
-			{title && <h1 className="text-2xl font-bold">{title}</h1>}
-			<div className="columns-1 sm:columns-2 lg:columns-3 xl:columns-4 gap-6">
+		<div
+			ref={containerRef}
+			className="mx-auto px-4 h-screen flex flex-col justify-start items-center overflow-y-auto snap-y snap-mandatory no-scrollbar"
+		>
+			{title && <h1 className="text-2xl font-bold py-8">{title}</h1>}
+			<div className="max-w-xl flex flex-col justify-start items-center">
 				{contents.map((content) => (
-					<div key={content.id} className="break-inside-avoid mb-6">
+					<div
+						key={content.id}
+						data-content-id={content.id}
+						className="w-full snap-start snap-always py-4"
+					>
 						<ContentCard content={content} onUpdate={fetchInitial} />
 					</div>
 				))}