feat: new-release notice and colocate changelog under domain

3 files changed, 341 insertions, 0 deletions

diff --git a/apps/web/src/lib/changelog/components/changelog-notification.tsx b/apps/web/src/lib/changelog/components/changelog-notification.tsx
new file mode 100644
index 00000000..c45eaaac
--- /dev/null
+++ b/apps/web/src/lib/changelog/components/changelog-notification.tsx
@@ -0,0 +1,90 @@
+"use client";
+
+import { useState, useEffect } from "react";
+import Link from "next/link";
+import { Cancel01Icon } from "@hugeicons/core-free-icons";
+import { HugeiconsIcon } from "@hugeicons/react";
+import { Button } from "@/components/ui/button";
+import { getSortedReleases } from "../utils";
+import type { Release } from "../utils";
+
+const STORAGE_KEY = "last-seen-version";
+
+export function ChangelogNotification() {
+	const [release, setRelease] = useState<Release | null>(null);
+
+	useEffect(() => {
+		const releases = getSortedReleases();
+		const latest = releases[0];
+		if (!latest) return;
+
+		let storedVersion: string | null = null;
+		try {
+			storedVersion = localStorage.getItem(STORAGE_KEY);
+		} catch {
+			// localStorage unavailable
+		}
+
+		// First-time visitor: record the version silently, nothing to announce.
+		if (storedVersion === null) {
+			try {
+				localStorage.setItem(STORAGE_KEY, latest.version);
+			} catch {
+				// ignore
+			}
+			return;
+		}
+
+		// Already seen this version.
+		if (storedVersion === latest.version) return;
+
+		// New version since last visit: record it and show the notification.
+		try {
+			localStorage.setItem(STORAGE_KEY, latest.version);
+		} catch {
+			// ignore
+		}
+
+		setRelease(latest);
+	}, []);
+
+	if (!release) return null;
+
+	return (
+		<div className="fixed bottom-5 left-5 z-50 flex w-72 flex-col gap-3 rounded-xl border bg-card p-4 shadow-lg">
+			<div className="flex items-start justify-between gap-2">
+				<div className="flex flex-col gap-1">
+					<span className="text-sm font-semibold leading-snug">
+						{release.title}
+					</span>
+					<span className="text-xs text-muted-foreground">
+						v{release.version}
+					</span>
+				</div>
+				<Button
+					variant="ghost"
+					size="icon"
+					className="-mr-1 -mt-1 shrink-0"
+					onClick={() => setRelease(null)}
+					aria-label="Dismiss"
+				>
+					<HugeiconsIcon icon={Cancel01Icon} className="size-4" />
+				</Button>
+			</div>
+
+			{release.summary && (
+				<p className="text-xs leading-relaxed text-muted-foreground">
+					{release.summary}
+				</p>
+			)}
+
+			<div className="flex justify-end">
+				<Button asChild size="sm">
+					<Link href="/changelog" onClick={() => setRelease(null)}>
+						See full changelog
+					</Link>
+				</Button>
+			</div>
+		</div>
+	);
+}
diff --git a/apps/web/src/lib/changelog/components/copy-markdown-button.tsx b/apps/web/src/lib/changelog/components/copy-markdown-button.tsx
new file mode 100644
index 00000000..bc7e94bf
--- /dev/null
+++ b/apps/web/src/lib/changelog/components/copy-markdown-button.tsx
@@ -0,0 +1,98 @@
+"use client";
+
+import { useState } from "react";
+import { CheckIcon, ClipboardIcon } from "lucide-react";
+import {
+	getSectionTitle,
+	groupAndOrderChanges,
+	isSectionCollapsible,
+} from "../utils";
+import type { Change } from "../utils";
+import { cn } from "@/utils/ui";
+import { Button } from "@/components/ui/button";
+
+function buildMarkdown({
+	description,
+	changes,
+}: {
+	description?: string;
+	changes: Change[];
+}): string {
+	const lines: string[] = [];
+
+	if (description) {
+		lines.push(description, "");
+	}
+
+	const { grouped, orderedTypes } = groupAndOrderChanges({ changes });
+
+	for (const type of orderedTypes) {
+		if (isSectionCollapsible({ type })) {
+			lines.push(
+				buildCollapsibleMarkdownSection({
+					title: getSectionTitle({ type }),
+					changes: grouped[type],
+				}),
+				"",
+			);
+			continue;
+		}
+
+		lines.push(`## ${getSectionTitle({ type })}`);
+		for (const change of grouped[type]) {
+			lines.push(`- ${change.text}`);
+		}
+		lines.push("");
+	}
+
+	return lines.join("\n").trimEnd();
+}
+
+function buildCollapsibleMarkdownSection({
+	title,
+	changes,
+}: {
+	title: string;
+	changes: Change[];
+}): string {
+	const bulletLines = changes.map((change) => `- ${change.text}`).join("\n");
+
+	return `<details>\n<summary>${title}</summary>\n\n${bulletLines}\n\n</details>`;
+}
+
+export function CopyMarkdownButton({
+	description,
+	changes,
+}: {
+	description?: string;
+	changes: Change[];
+}) {
+	const [copied, setCopied] = useState(false);
+
+	const handleCopy = async () => {
+		const markdown = buildMarkdown({ description, changes });
+		await navigator.clipboard.writeText(markdown);
+		setCopied(true);
+		setTimeout(() => setCopied(false), 2000);
+	};
+
+	return (
+		<Button
+			size="sm"
+			variant="text"
+			onClick={handleCopy}
+			className={cn(
+				"flex items-center gap-1.5",
+				copied && "pointer-events-none",
+			)}
+			title="Copy as markdown"
+		>
+			{copied ? (
+				<CheckIcon className="size-4" />
+			) : (
+				<ClipboardIcon className="size-4" />
+			)}
+			{copied ? "Copied!" : "Copy markdown"}
+		</Button>
+	);
+}
diff --git a/apps/web/src/lib/changelog/components/release.tsx b/apps/web/src/lib/changelog/components/release.tsx
new file mode 100644
index 00000000..475b0a6d
--- /dev/null
+++ b/apps/web/src/lib/changelog/components/release.tsx
@@ -0,0 +1,153 @@
+import type { ReactNode } from "react";
+import Link from "next/link";
+import { cn } from "@/utils/ui";
+import { ReactMarkdownWrapper } from "@/components/ui/react-markdown-wrapper";
+import {
+	getSectionTitle,
+	groupAndOrderChanges,
+	isSectionCollapsible,
+	type Change,
+	type Release,
+} from "../utils";
+import { ArrowRightIcon } from "@hugeicons/core-free-icons";
+import { HugeiconsIcon } from "@hugeicons/react";
+
+export function ReleaseArticle({
+	variant,
+	isLatest,
+	children,
+}: {
+	variant: "list" | "detail";
+	isLatest?: boolean;
+	children: ReactNode;
+}) {
+	if (variant === "list") {
+		return (
+			<article className="relative sm:pl-10">
+				<div aria-hidden className="absolute left-0 top-[3px] hidden sm:block">
+					<div
+						className={cn(
+							"size-[11px] rounded-full border-[1.5px]",
+							isLatest
+								? "border-foreground bg-foreground"
+								: "border-muted-foreground/30 bg-background",
+						)}
+					/>
+				</div>
+				<div className="flex flex-col gap-5">{children}</div>
+			</article>
+		);
+	}
+
+	return <article className="flex flex-col gap-8">{children}</article>;
+}
+
+export function ReleaseMeta({ release }: { release: Release }) {
+	return (
+		<span className="text-sm font-medium tracking-widest text-muted-foreground">
+			{release.version} — {release.date}
+		</span>
+	);
+}
+
+const titleSizes: Record<"h1" | "h2", string> = {
+	h1: "text-4xl",
+	h2: "text-2xl",
+};
+
+export function ReleaseTitle({
+	as: As,
+	href,
+	children,
+}: {
+	as: "h1" | "h2";
+	href?: string;
+	children: ReactNode;
+}) {
+	return (
+		<As className={cn("font-bold tracking-tight", titleSizes[As])}>
+			{href ? (
+				<Link href={href} className="hover:underline underline-offset-4">
+					{children}
+				</Link>
+			) : (
+				children
+			)}
+		</As>
+	);
+}
+
+export function ReleaseDescription({ children }: { children: ReactNode }) {
+	return (
+		<p className="text-base text-foreground leading-relaxed max-w-xl">
+			{children}
+		</p>
+	);
+}
+
+export function ReleaseChanges({ release }: { release: Release }) {
+	const { grouped, orderedTypes } = groupAndOrderChanges({
+		changes: release.changes,
+	});
+
+	return (
+		<div className="flex flex-col gap-4">
+			{orderedTypes.map((type) => (
+				<ReleaseChangeSection key={type} type={type} changes={grouped[type]} />
+			))}
+		</div>
+	);
+}
+
+function ReleaseChangeSection({
+	type,
+	changes,
+}: {
+	type: string;
+	changes: Change[];
+}) {
+	const title = getSectionTitle({ type });
+
+	if (isSectionCollapsible({ type })) {
+		return (
+			<details className="group flex flex-col gap-1.5">
+				<summary className="flex w-fit cursor-pointer list-none items-center gap-1.5 text-base font-semibold text-foreground [&::-webkit-details-marker]:hidden">
+					<span>{title}:</span>
+					<HugeiconsIcon
+						icon={ArrowRightIcon}
+						className="size-3 shrink-0 text-muted-foreground group-open:rotate-90"
+					/>
+				</summary>
+				<ReleaseChangeList changes={changes} />
+			</details>
+		);
+	}
+
+	return (
+		<div className="flex flex-col gap-1.5">
+			<h3 className="text-base font-semibold text-foreground">{title}:</h3>
+			<ReleaseChangeList changes={changes} />
+		</div>
+	);
+}
+
+function ReleaseChangeList({
+	changes,
+	className,
+}: {
+	changes: Change[];
+	className?: string;
+}) {
+	return (
+		<ul className={cn("list-disc space-y-1.5 pl-5", className)}>
+			{changes.map((change) => (
+				<li
+					key={change.text}
+					className="text-base leading-relaxed text-foreground"
+				>
+					<ReactMarkdownWrapper inline>{change.text}</ReactMarkdownWrapper>
+				</li>
+			))}
+		</ul>
+	);
+}