"use client";
import * as React from "react";
import { AnimatePresence, motion, MotionConfig } from "motion/react";
import { ArrowLeft, Bookmark, CheckCircle2, Feather, Loader2, Sparkles, X } from "lucide-react";
import { cn } from "@/lib/utils";
import { FOLLOWING, MAX_PAGES, ME_ID, NOTIFICATIONS, POSTS, SEED_NOW, TRENDS, USERS, morePosts } from "./data";
import { LeftNav, Logo, MobileTabBar, type NavKey, type View } from "./feed-nav";
import { Avatar, FollowButton, IconButton, Verified } from "./feed-ui";
import { NotificationsView } from "./notifications-view";
import { PostCard, PostSkeleton, type PostHandlers, type ShareKind } from "./post-card";
import { PostComposer, type PostComposerHandle } from "./post-composer";
import { ProfileView } from "./profile-view";
import { RightRail, SearchBox, TrendList } from "./right-rail";
import type { Comment, NewPost, Post, SocialNotification, SocialUser, Trend } from "./types";
export type { Comment, NewPost, Post, SocialNotification, SocialUser, Trend };
export interface SocialFeedAppProps {
users?: SocialUser[];
initialPosts?: Post[];
notifications?: SocialNotification[];
trends?: Trend[];
currentUserId?: string;
/** Ids the current user follows. */
initialFollowing?: string[];
/** Reference "now" for relative times. Defaults to the seed time (demo) or the client clock (your data). */
now?: Date | string;
/** Load older posts for the infinite feed. Return [] when there are no more. Defaults to a deterministic demo generator. */
loadMore?: (page: number) => Promise<Post[]>;
/** Simulate other people liking and replying to what you post. Defaults to true for the demo data. */
simulateActivity?: boolean;
onPost?: (post: Post) => void;
onLike?: (postId: string, liked: boolean) => void;
onComment?: (postId: string, comment: Comment) => void;
onFollow?: (userId: string, following: boolean) => void;
className?: string;
}
type Toast = { id: number; text: string; action?: { label: string; run: () => void } };
let seq = 0;
const newId = (p: string) => `${p}-${Date.now().toString(36)}-${(++seq).toString(36)}`;
export function SocialFeedApp({
users: usersProp = USERS,
initialPosts,
notifications: notificationsProp,
trends = TRENDS,
currentUserId = ME_ID,
initialFollowing = FOLLOWING,
now: nowProp,
loadMore,
simulateActivity,
onPost,
onLike,
onComment,
onFollow,
className,
}: SocialFeedAppProps) {
const demo = !initialPosts;
const simulate = simulateActivity ?? demo;
const [posts, setPosts] = React.useState<Post[]>(initialPosts ?? POSTS);
const [users, setUsers] = React.useState<SocialUser[]>(usersProp);
const [following, setFollowing] = React.useState<Set<string>>(() => new Set(initialFollowing));
const [notifs, setNotifs] = React.useState<SocialNotification[]>(notificationsProp ?? (demo ? NOTIFICATIONS : []));
const [fresh, setFresh] = React.useState<Set<string>>(() => new Set());
const [view, setView] = React.useState<View>({ kind: "home" });
const [history, setHistory] = React.useState<View[]>([]);
const [feedTab, setFeedTab] = React.useState<"foryou" | "following">("foryou");
const [query, setQuery] = React.useState("");
const [page, setPage] = React.useState(1);
const [loading, setLoading] = React.useState(false);
const [done, setDone] = React.useState(false);
const [newIds, setNewIds] = React.useState<Set<string>>(() => new Set());
const [toasts, setToasts] = React.useState<Toast[]>([]);
const [now, setNow] = React.useState(() => new Date(nowProp ?? SEED_NOW));
const [suggestIds] = React.useState(() =>
usersProp
.filter((u) => u.id !== currentUserId && !initialFollowing.includes(u.id))
.slice(0, 3)
.map((u) => u.id),
);
const scroller = React.useRef<HTMLDivElement>(null);
const sentinel = React.useRef<HTMLDivElement>(null);
const composer = React.useRef<PostComposerHandle>(null);
const timers = React.useRef<number[]>([]);
const mountedAt = React.useRef(0);
React.useEffect(() => {
mountedAt.current = Date.now();
if (!nowProp && !demo) setNow(new Date());
const t = timers.current;
return () => t.forEach((id) => window.clearTimeout(id));
}, [nowProp, demo]);
const stamp = React.useCallback(() => new Date(now.getTime() + (Date.now() - (mountedAt.current || Date.now()))).toISOString(), [now]);
const later = (ms: number, fn: () => void) => timers.current.push(window.setTimeout(fn, ms));
const userMap = React.useMemo(() => new Map(users.map((u) => [u.id, u])), [users]);
const postMap = React.useMemo(() => new Map(posts.map((p) => [p.id, p])), [posts]);
const me = userMap.get(currentUserId) ?? users[0];
const unread = notifs.filter((n) => !n.read).length;
/* -------------------------------- toasts -------------------------------- */
const toast = React.useCallback((text: string, action?: Toast["action"]) => {
const id = ++seq;
setToasts((ts) => [...ts.slice(-2), { id, text, action }]);
window.setTimeout(() => setToasts((ts) => ts.filter((t) => t.id !== id)), 4000);
}, []);
/* ------------------------------ navigation ------------------------------ */
const go = React.useCallback(
(v: View) => {
setHistory((h) => [...h.slice(-10), view]);
setView(v);
if (v.kind === "notifications") {
setFresh(new Set(notifs.filter((n) => !n.read).map((n) => n.id)));
setNotifs((ns) => ns.map((n) => ({ ...n, read: true })));
}
if (v.kind === "explore") setQuery(v.q ?? "");
requestAnimationFrame(() => scroller.current?.scrollTo({ top: 0 }));
},
[view, notifs],
);
const back = () => {
const prev = history[history.length - 1] ?? { kind: "home" };
setHistory((h) => h.slice(0, -1));
setView(prev);
requestAnimationFrame(() => scroller.current?.scrollTo({ top: 0 }));
};
const nav = (k: NavKey) => {
if (k === "profile") go({ kind: "profile", userId: currentUserId });
else if (k === "explore") go({ kind: "explore" });
else if (k === view.kind) scroller.current?.scrollTo({ top: 0, behavior: "smooth" });
else go({ kind: k });
};
const activeNav: NavKey = view.kind === "profile" ? (view.userId === currentUserId ? "profile" : "home") : view.kind;
const compose = () => {
if (view.kind !== "home") go({ kind: "home" });
requestAnimationFrame(() => {
scroller.current?.scrollTo({ top: 0, behavior: "smooth" });
composer.current?.focus();
});
};
/* -------------------------------- actions ------------------------------- */
const patch = React.useCallback((id: string, fn: (p: Post) => Post) => setPosts((ps) => ps.map((p) => (p.id === id ? fn(p) : p))), []);
const toggleFollow = React.useCallback(
(id: string) => {
const on = !following.has(id);
setFollowing((f) => {
const n = new Set(f);
if (on) n.add(id);
else n.delete(id);
return n;
});
setUsers((us) =>
us.map((u) =>
u.id === id ? { ...u, followers: u.followers + (on ? 1 : -1) } : u.id === currentUserId ? { ...u, following: u.following + (on ? 1 : -1) } : u,
),
);
const u = userMap.get(id);
onFollow?.(id, on);
if (u) toast(on ? `You're now following @${u.handle}` : `Unfollowed @${u.handle}`);
},
[following, currentUserId, userMap, onFollow, toast],
);
const handlers: PostHandlers = React.useMemo(
() => ({
onLike: (id) => {
const p = postMap.get(id);
if (!p) return;
patch(id, (x) => ({ ...x, liked: !x.liked, likes: x.likes + (x.liked ? -1 : 1) }));
onLike?.(id, !p.liked);
},
onRepost: (id) => {
const p = postMap.get(id);
if (!p) return;
patch(id, (x) => ({ ...x, reposted: !x.reposted, reposts: x.reposts + (x.reposted ? -1 : 1) }));
toast(p.reposted ? "Repost removed" : "Reposted to your followers");
},
onBookmark: (id) => {
const p = postMap.get(id);
if (!p) return;
patch(id, (x) => ({ ...x, bookmarked: !x.bookmarked }));
toast(
p.bookmarked ? "Removed from your Bookmarks" : "Added to your Bookmarks",
p.bookmarked ? undefined : { label: "View", run: () => go({ kind: "bookmarks" }) },
);
},
onVote: (id, optionId) =>
patch(id, (x) =>
x.poll && !x.poll.votedId
? { ...x, poll: { ...x.poll, votedId: optionId, options: x.poll.options.map((o) => (o.id === optionId ? { ...o, votes: o.votes + 1 } : o)) } }
: x,
),
onComment: (id, text) => {
const c: Comment = { id: newId("c"), authorId: currentUserId, text, ts: stamp(), likes: 0 };
patch(id, (x) => ({ ...x, comments: [...x.comments, c] }));
onComment?.(id, c);
},
onLikeComment: (postId, cid) =>
patch(postId, (x) => ({ ...x, comments: x.comments.map((c) => (c.id === cid ? { ...c, liked: !c.liked, likes: c.likes + (c.liked ? -1 : 1) } : c)) })),
onShare: (id, kind: ShareKind) => {
const p = postMap.get(id);
const author = p ? userMap.get(p.authorId) : undefined;
const url = `https://orbit.example/${author?.handle ?? "post"}/status/${id}`;
const text = kind === "embed" ? `<blockquote class="orbit-post"><a href="${url}">${url}</a></blockquote>` : url;
if (kind !== "dm") navigator.clipboard?.writeText(text).catch(() => {});
toast(kind === "copy" ? "Link copied to clipboard" : kind === "embed" ? "Embed code copied" : "Ready to send — pick someone in Messages");
},
onOpenProfile: (userId) => go({ kind: "profile", userId }),
onTag: (tag) => go({ kind: "explore", q: `#${tag}` }),
onMention: (handle) => {
const u = users.find((x) => x.handle.toLowerCase() === handle.toLowerCase());
if (u) go({ kind: "profile", userId: u.id });
},
}),
[postMap, patch, onLike, toast, go, currentUserId, stamp, onComment, userMap, users],
);
const createPost = (np: NewPost) => {
const ts = stamp();
const post: Post = {
id: newId("p"),
authorId: currentUserId,
text: np.text,
ts,
likes: 0,
reposts: 0,
views: 1,
comments: [],
image: np.image,
poll: np.poll
? {
endsAt: new Date(new Date(ts).getTime() + np.poll.hours * 3_600_000).toISOString(),
options: np.poll.options.map((label, i) => ({ id: `o${i}`, label, votes: 0 })),
}
: undefined,
};
setPosts((ps) => [post, ...ps]);
setNewIds((s) => new Set(s).add(post.id));
onPost?.(post);
toast("Your post was sent", { label: "View", run: () => go({ kind: "profile", userId: currentUserId }) });
if (!simulate) return;
const likers = users.filter((u) => u.id !== currentUserId).slice(0, 3);
later(2200, () => {
patch(post.id, (x) => ({ ...x, likes: x.likes + likers.length, views: x.views + 48 }));
setNotifs((ns) => [{ id: newId("n"), kind: "like", actorIds: likers.map((u) => u.id), postId: post.id, ts: stamp(), read: false }, ...ns]);
});
const replier = likers[0];
if (replier)
later(4200, () => {
const c: Comment = { id: newId("c"), authorId: replier.id, text: "Love this — more of it please ✨", ts: stamp(), likes: 1 };
patch(post.id, (x) => ({ ...x, comments: [...x.comments, c], views: x.views + 120 }));
setNotifs((ns) => [{ id: newId("n"), kind: "reply", actorIds: [replier.id], postId: post.id, text: c.text, ts: stamp(), read: false }, ...ns]);
});
};
/* ------------------------------ load more ------------------------------- */
const loadNext = React.useCallback(() => {
if (loading || done) return;
setLoading(true);
const next = page + 1;
const authors = users.filter((u) => u.id !== currentUserId).map((u) => u.id);
const run = loadMore ?? ((pg: number) => new Promise<Post[]>((r) => window.setTimeout(() => r(pg > MAX_PAGES + 1 ? [] : morePosts(pg - 1, authors)), 750)));
run(next)
.then((more) => {
if (!more.length) setDone(true);
else {
setPosts((ps) => [...ps, ...more.filter((m) => !ps.some((p) => p.id === m.id))]);
setPage(next);
}
})
.catch(() => toast("Couldn't load more posts"))
.finally(() => setLoading(false));
}, [loading, done, page, users, currentUserId, loadMore, toast]);
React.useEffect(() => {
const el = sentinel.current;
const root = scroller.current;
if (!el || !root || view.kind !== "home") return;
const io = new IntersectionObserver((entries) => entries.some((e) => e.isIntersecting) && loadNext(), { root, rootMargin: "200px" });
io.observe(el);
return () => io.disconnect();
}, [loadNext, view.kind]);
/* ------------------------------- keyboard ------------------------------- */
const keyRef = React.useRef<(e: KeyboardEvent) => void>(() => {});
React.useLayoutEffect(() => {
keyRef.current = (e) => {
const t = e.target as HTMLElement;
if (e.metaKey || e.ctrlKey || e.altKey) return;
if (t.closest("input,textarea,select,[contenteditable],[role=menu]")) return;
const articles = [...(scroller.current?.querySelectorAll<HTMLElement>("article") ?? [])];
const i = articles.findIndex((a) => a.contains(document.activeElement));
if (e.key === "j" || e.key === "k") {
e.preventDefault();
const n = articles[Math.max(0, Math.min(articles.length - 1, i + (e.key === "j" ? 1 : -1)))];
n?.focus();
n?.scrollIntoView({ block: "nearest", behavior: "smooth" });
} else if (e.key === "n") {
e.preventDefault();
compose();
} else if (e.key === "/") {
e.preventDefault();
(document.getElementById("sf-rail-search") ?? document.getElementById("sf-explore-search"))?.focus();
if (!document.getElementById("sf-rail-search")) go({ kind: "explore" });
} else if (e.key === "l" && i >= 0) {
articles[i].querySelector<HTMLButtonElement>("button[aria-label^=Like],button[aria-label^=Unlike]")?.click();
} else if (e.key === "Escape" && (view.kind === "profile" || view.kind === "explore")) back();
};
});
React.useEffect(() => {
const onKey = (e: KeyboardEvent) => keyRef.current(e);
window.addEventListener("keydown", onKey);
return () => window.removeEventListener("keydown", onKey);
}, []);
/* -------------------------------- views --------------------------------- */
const card = (p: Post, context?: React.ReactNode) => {
const a = userMap.get(p.authorId);
return a ? (
<PostCard key={p.id} post={p} author={a} users={userMap} me={me} now={now} handlers={handlers} isNew={newIds.has(p.id)} context={context} />
) : null;
};
const header = (title: React.ReactNode, sub?: string, backBtn = false) => (
<div className="sticky top-0 z-20 flex h-[53px] items-center gap-5 border-b bg-background/80 px-4 backdrop-blur-md">
{backBtn && (
<IconButton label="Back" onClick={back} className="-ml-2">
<ArrowLeft className="size-5" />
</IconButton>
)}
<div className="min-w-0">
<h1 className="truncate text-[19px] font-extrabold leading-tight tracking-tight">{title}</h1>
{sub && <p className="truncate text-[12.5px] text-muted-foreground">{sub}</p>}
</div>
</div>
);
const q = query.trim().toLowerCase();
let content: React.ReactNode;
if (view.kind === "home") {
const feed = feedTab === "following" ? posts.filter((p) => following.has(p.authorId) || p.authorId === currentUserId) : posts;
content = (
<>
<div className="sticky top-0 z-20 border-b bg-background/80 backdrop-blur-md">
<div className="flex h-[53px] items-center justify-between px-4 md:hidden">
<button
type="button"
onClick={() => nav("profile")}
aria-label="Your profile"
className="rounded-full outline-none focus-visible:ring-2 focus-visible:ring-ring"
>
<Avatar user={me} size={32} />
</button>
<Logo />
<IconButton label="Explore" onClick={() => nav("explore")}>
<Sparkles className="size-5" />
</IconButton>
</div>
<div role="tablist" aria-label="Feed" className="flex">
{(
[
["foryou", "For you"],
["following", "Following"],
] as const
).map(([k, l]) => (
<button
key={k}
type="button"
role="tab"
aria-selected={feedTab === k}
onClick={() => setFeedTab(k)}
className={cn(
"relative flex h-[53px] flex-1 items-center justify-center text-[15px] outline-none transition hover:bg-muted/60 focus-visible:bg-muted/60 dark:hover:bg-muted/30",
feedTab === k ? "font-bold" : "font-medium text-muted-foreground",
)}
>
{l}
{feedTab === k && (
<motion.span
layoutId="sf-feed-tab"
className="absolute bottom-0 h-1 w-14 rounded-full bg-sky-500"
transition={{ type: "spring", stiffness: 500, damping: 38 }}
/>
)}
</button>
))}
</div>
</div>
<PostComposer ref={composer} me={me} onPost={createPost} className="max-md:hidden" />
{feed.map((p) => card(p))}
<div ref={sentinel} aria-hidden className="h-px" />
{loading && (
<div role="status" aria-label="Loading more posts">
<PostSkeleton />
<PostSkeleton />
</div>
)}
<div className="grid place-items-center py-6">
{done ? (
<p className="flex items-center gap-2 text-[14px] text-muted-foreground">
<CheckCircle2 className="size-4 text-emerald-500" aria-hidden /> You're all caught up
</p>
) : (
<button
type="button"
onClick={loadNext}
disabled={loading}
className="flex h-9 items-center gap-2 rounded-full border px-4 text-[14px] font-semibold text-sky-600 outline-none transition hover:bg-sky-500/10 focus-visible:ring-2 focus-visible:ring-ring disabled:opacity-60 dark:text-sky-400"
>
{loading && <Loader2 className="size-4 animate-spin" aria-hidden />}
{loading ? "Loading" : "Load more"}
</button>
)}
</div>
</>
);
} else if (view.kind === "explore") {
const results = q ? posts.filter((p) => p.text.toLowerCase().includes(q) || userMap.get(p.authorId)?.name.toLowerCase().includes(q)) : [];
const people = q
? users.filter((u) => u.id !== currentUserId && (u.name.toLowerCase().includes(q.replace(/^[@#]/, "")) || u.handle.includes(q.replace(/^[@#]/, ""))))
: [];
content = (
<>
<div className="sticky top-0 z-20 flex items-center gap-2 border-b bg-background/80 px-3 py-2 backdrop-blur-md">
{history.length > 0 && (
<IconButton label="Back" onClick={back}>
<ArrowLeft className="size-5" />
</IconButton>
)}
<SearchBox id="sf-explore-search" value={query} onChange={setQuery} onSubmit={setQuery} className="flex-1" />
</div>
{!q ? (
<>
<div className="relative aspect-[5/2] overflow-hidden border-b">
<div className="absolute inset-0 bg-[radial-gradient(circle_at_20%_20%,oklch(0.75_0.16_300/.9),transparent_55%),radial-gradient(circle_at_80%_70%,oklch(0.7_0.15_220/.9),transparent_55%),linear-gradient(135deg,oklch(0.35_0.1_280),oklch(0.28_0.08_240))]" />
<div className="absolute inset-x-0 bottom-0 bg-gradient-to-t from-black/70 to-transparent p-4 text-white">
<p className="text-[12.5px] font-medium opacity-80">Design · LIVE</p>
<p className="text-[20px] font-extrabold leading-tight">Lumen Summit 2026: everything announced on day one</p>
</div>
</div>
<h2 className="px-4 pb-1 pt-4 text-[20px] font-extrabold tracking-tight">Trending now</h2>
<TrendList trends={trends} onTag={(t) => setQuery(`#${t}`)} />
</>
) : (
<>
{people.length > 0 && (
<section aria-label="People" className="border-b">
<h2 className="px-4 pb-1 pt-3 text-[17px] font-extrabold">People</h2>
{people.slice(0, 3).map((u) => (
<div key={u.id} className="flex items-center gap-3 px-4 py-2.5">
<button
type="button"
onClick={() => go({ kind: "profile", userId: u.id })}
className="flex min-w-0 flex-1 items-center gap-3 text-left outline-none focus-visible:ring-2 focus-visible:ring-ring"
>
<Avatar user={u} size={40} />
<span className="min-w-0">
<span className="flex items-center gap-1 font-bold">
<span className="truncate">{u.name}</span>
{u.verified && <Verified />}
</span>
<span className="block truncate text-[13.5px] text-muted-foreground">@{u.handle}</span>
</span>
</button>
<FollowButton following={following.has(u.id)} onToggle={() => toggleFollow(u.id)} name={u.name} />
</div>
))}
</section>
)}
{results.length ? (
results.map((p) => card(p))
) : (
<div className="px-8 py-14 text-center">
<p className="text-[22px] font-extrabold tracking-tight">No results for “{query.trim()}”</p>
<p className="mt-1 text-[14px] text-muted-foreground">Try searching for something else, or check the spelling.</p>
</div>
)}
</>
)}
</>
);
} else if (view.kind === "bookmarks") {
const marks = posts.filter((p) => p.bookmarked);
content = (
<>
{header("Bookmarks", `@${me.handle}`)}
{marks.length ? (
marks.map((p) => card(p))
) : (
<div className="px-8 py-16 text-center">
<span className="mx-auto grid size-12 place-items-center rounded-full bg-amber-500/10 text-amber-600 dark:text-amber-400">
<Bookmark className="size-5" />
</span>
<p className="mt-3 text-[22px] font-extrabold tracking-tight">Save posts for later</p>
<p className="mt-1 text-[14px] text-muted-foreground">Bookmark posts to easily find them again in the future.</p>
</div>
)}
</>
);
} else if (view.kind === "notifications") {
content = (
<NotificationsView
items={notifs}
fresh={fresh}
users={userMap}
posts={postMap}
now={now}
onOpenProfile={handlers.onOpenProfile}
onTag={handlers.onTag}
onMention={handlers.onMention}
/>
);
} else {
const user = userMap.get(view.userId);
if (user) {
const authored = posts.filter((p) => p.authorId === user.id);
const replies = posts.flatMap((p) => p.comments.filter((c) => c.authorId === user.id).map((comment) => ({ post: p, comment })));
const likes = user.id === currentUserId ? posts.filter((p) => p.liked) : [];
content = (
<ProfileView
key={user.id}
user={user}
me={me}
following={following.has(user.id)}
followers={user.followers}
followingCount={user.following}
posts={authored}
replies={replies}
likes={likes}
users={userMap}
now={now}
handlers={handlers}
onFollow={() => toggleFollow(user.id)}
onBack={back}
onEdit={() => toast("Profile editing is up to you — wire it to your API")}
/>
);
}
}
return (
<MotionConfig reducedMotion="user">
<div className={cn("relative isolate flex h-[760px] w-full flex-col overflow-hidden bg-background text-foreground antialiased", className)}>
<div className="mx-auto flex min-h-0 w-full max-w-[1265px] flex-1">
<header className="hidden w-[76px] shrink-0 md:block xl:w-[260px]">
<LeftNav active={activeNav} me={me} unread={unread} onNav={nav} onCompose={compose} />
</header>
<main
ref={scroller}
aria-label={view.kind === "home" ? "Home timeline" : view.kind}
className="relative min-w-0 flex-1 overflow-y-auto overscroll-contain border-x [scrollbar-width:thin] md:max-w-[600px]"
>
{view.kind !== "home" && <div className="sr-only" aria-live="polite">{`Showing ${view.kind}`}</div>}
{content}
</main>
<aside aria-label="Trends and suggestions" className="hidden min-h-0 w-[330px] shrink-0 overflow-y-auto [scrollbar-width:thin] lg:block xl:w-[350px]">
<RightRail
query={view.kind === "explore" ? "" : query}
onQuery={setQuery}
onSearch={(v) => go({ kind: "explore", q: v })}
trends={trends}
suggestions={suggestIds.map((id) => userMap.get(id)).filter((u): u is SocialUser => !!u)}
following={following}
onFollow={toggleFollow}
onTag={(t) => go({ kind: "explore", q: `#${t}` })}
onOpenProfile={(id) => go({ kind: "profile", userId: id })}
showSearch={view.kind !== "explore"}
/>
</aside>
</div>
<MobileTabBar active={activeNav} unread={unread} onNav={nav} />
{/* Mobile compose */}
<AnimatePresence>{view.kind === "home" && <MobileCompose me={me} onPost={createPost} />}</AnimatePresence>
{/* Toasts */}
<div aria-live="polite" className="pointer-events-none absolute inset-x-0 bottom-20 z-[60] flex flex-col items-center gap-2 px-4 md:bottom-6">
<AnimatePresence initial={false}>
{toasts.map((t) => (
<motion.div
key={t.id}
layout
initial={{ opacity: 0, y: 20, scale: 0.92 }}
animate={{ opacity: 1, y: 0, scale: 1 }}
exit={{ opacity: 0, y: 10, scale: 0.95, transition: { duration: 0.15 } }}
transition={{ type: "spring", stiffness: 500, damping: 32 }}
role="status"
className="pointer-events-auto flex max-w-full items-center gap-3 rounded-full bg-sky-500 py-2 pl-4 pr-2 text-[14px] font-medium text-white shadow-xl shadow-sky-500/25"
>
<span className="min-w-0 truncate">{t.text}</span>
{t.action && (
<button
type="button"
onClick={() => {
t.action?.run();
setToasts((ts) => ts.filter((x) => x.id !== t.id));
}}
className="h-7 rounded-full px-2.5 text-[13px] font-bold underline-offset-2 outline-none hover:bg-white/15 hover:underline focus-visible:ring-2 focus-visible:ring-white"
>
{t.action.label}
</button>
)}
<button
type="button"
aria-label="Dismiss"
onClick={() => setToasts((ts) => ts.filter((x) => x.id !== t.id))}
className="grid size-6 place-items-center rounded-full text-white/80 outline-none hover:bg-white/15 focus-visible:ring-2 focus-visible:ring-white"
>
<X className="size-3.5" />
</button>
</motion.div>
))}
</AnimatePresence>
</div>
</div>
</MotionConfig>
);
}
/** Floating compose button + sheet for small screens. */
function MobileCompose({ me, onPost }: { me: SocialUser; onPost: (p: NewPost) => void }) {
const [open, setOpen] = React.useState(false);
const ref = React.useRef<PostComposerHandle>(null);
React.useEffect(() => {
if (open) requestAnimationFrame(() => ref.current?.focus());
}, [open]);
return (
<>
<motion.button
type="button"
initial={{ scale: 0 }}
animate={{ scale: 1 }}
exit={{ scale: 0 }}
whileTap={{ scale: 0.92 }}
onClick={() => setOpen(true)}
aria-label="Write a post"
className="absolute bottom-[72px] right-4 z-30 grid size-14 place-items-center rounded-full bg-sky-500 text-white shadow-lg shadow-sky-500/30 outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 md:hidden"
>
<Feather className="size-6" />
</motion.button>
<AnimatePresence>
{open && (
<motion.div
role="dialog"
aria-modal="true"
aria-label="New post"
initial={{ y: "100%" }}
animate={{ y: 0 }}
exit={{ y: "100%" }}
transition={{ type: "spring", stiffness: 420, damping: 42 }}
onKeyDown={(e) => e.key === "Escape" && setOpen(false)}
className="absolute inset-0 z-50 flex flex-col bg-background md:hidden"
>
<div className="flex h-[53px] items-center px-2">
<button
type="button"
onClick={() => setOpen(false)}
className="h-9 rounded-full px-3 text-[15px] font-medium outline-none hover:bg-accent focus-visible:ring-2 focus-visible:ring-ring"
>
Cancel
</button>
</div>
<PostComposer
ref={ref}
inputId="sf-compose-sheet"
me={me}
onPost={(p) => {
onPost(p);
setOpen(false);
}}
className="border-b-0"
/>
</motion.div>
)}
</AnimatePresence>
</>
);
}
export default SocialFeedApp;
