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path: root/apps/web/src/timeline/bookmarks/preview-overlay-source.tsx
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import type { Bookmark } from "@/timeline";
import {
	EMPTY_PREVIEW_OVERLAY_SOURCE_RESULT,
	type PreviewOverlayDefinition,
	type PreviewOverlaySourceResult,
} from "@/preview/overlays";
import { getBookmarksActiveAtTime } from "./utils";

export const bookmarkNotesPreviewOverlay: PreviewOverlayDefinition = {
	id: "bookmark-notes",
	label: "Show bookmark notes",
	defaultVisible: true,
};

function BookmarkNotesOverlay({
	bookmarks,
}: {
	bookmarks: Array<{ time: number; note: string; color?: string }>;
}) {
	return (
		<div className="flex flex-col gap-1.5" aria-live="polite">
			{bookmarks.map((bookmark) => (
				<div
					key={bookmark.time}
					className="flex max-w-[min(200px,50vw)] px-2.5 py-1.5 text-left text-white text-xs shadow-md backdrop-blur-sm"
					style={{
						backgroundColor: "rgb(0 0 0 / 0.5)",
						borderLeft: bookmark.color
							? `3px solid ${bookmark.color}`
							: "3px solid var(--primary)",
					}}
				>
					{bookmark.note}
				</div>
			))}
		</div>
	);
}

export function getBookmarkPreviewOverlaySource({
	bookmarks,
	time,
	isVisible,
}: {
	bookmarks: Bookmark[];
	time: number;
	isVisible: boolean;
}): PreviewOverlaySourceResult {
	const bookmarksWithNotes = getBookmarksActiveAtTime({
		bookmarks,
		time,
	}).flatMap((bookmark) => {
		if (bookmark.note == null || bookmark.note.trim() === "") {
			return [];
		}

		return [
			{
				time: bookmark.time,
				note: bookmark.note,
				color: bookmark.color,
			},
		];
	});

	if (!isVisible || bookmarksWithNotes.length === 0) {
		return {
			...EMPTY_PREVIEW_OVERLAY_SOURCE_RESULT,
			definitions: [bookmarkNotesPreviewOverlay],
		};
	}

	return {
		definitions: [bookmarkNotesPreviewOverlay],
		instances: [
			{
				id: bookmarkNotesPreviewOverlay.id,
				mount: { kind: "hud", anchor: "top-left", order: 0 },
				plane: "over-interaction",
				pointerEvents: "none",
				render: () => <BookmarkNotesOverlay bookmarks={bookmarksWithNotes} />,
			},
		],
	};
}