Files
spsays-training/components/layout/site-bottom-nav.tsx
T
2026-07-03 13:32:08 +05:30

135 lines
4.1 KiB
TypeScript

"use client";
/**
* SiteBottomNav — mobile-only bottom tab bar.
*
* Four items: Home · Search · Kautilya · Account.
* Mirrors the Instagram pattern — fixed to the viewport bottom, full
* width, equal-width tabs, the active tab uses the primary color.
*
* Hidden on md+ — desktop uses SiteSidebar.
*/
import Image from "next/image";
import Link from "next/link";
import { usePathname } from "next/navigation";
import { Home, Search, User as UserIcon } from "lucide-react";
import { useAuth } from "@/components/auth/auth-provider";
import { KautilyaIcon } from "@/components/selection-toolbar/shared";
import { cn } from "@/lib/utils";
type Item = {
/** Tab label, used for the aria-label. Bottom nav is icon-only. */
label: string;
href: string;
icon: React.ReactNode;
matchPrefixes?: string[];
};
export function SiteBottomNav() {
const pathname = usePathname();
const { user } = useAuth();
const items: Item[] = [
{ href: "/", label: "Home", icon: <Home className="size-5" /> },
{
href: "/search",
label: "Search",
icon: <Search className="size-5" />,
// Search is the knowledgebase entry point too — keep the tab lit
// while the user is reading anywhere in the library.
matchPrefixes: [
"/search",
"/books",
"/letters",
"/transcriptions",
"/essays",
"/glossary",
"/journals",
"/magazines",
"/other-documents",
"/disciples",
],
},
{
href: "/ask",
label: "Kautilya",
icon: <KautilyaIcon className="size-5" />,
},
{
href: user ? "/u/me" : "/login",
label: user ? "You" : "Sign in",
// Show the user's uploaded avatar when available so the nav
// feels personalized. Falls back to the generic person glyph
// for anonymous viewers and signed-in users who haven't
// uploaded a picture yet. The avatar circle is slightly larger
// (size-6 vs the size-5 icons elsewhere) so it reads as an
// identifying glyph rather than fading in with the other tabs.
icon: user?.avatar_url ? (
<Image
src={user.avatar_url}
alt=""
width={28}
height={28}
className="size-7 rounded-full object-cover ring-1 ring-foreground/10"
unoptimized
/>
) : (
<UserIcon className="size-5" />
),
matchPrefixes: ["/u/me", "/login", "/signup"],
},
];
function isActive(item: Item): boolean {
if (item.matchPrefixes) {
return item.matchPrefixes.some((p) =>
p === "/" ? pathname === "/" : pathname.startsWith(p),
);
}
if (item.href === "/") return pathname === "/";
return pathname === item.href || pathname.startsWith(`${item.href}/`);
}
return (
<nav
aria-label="Primary"
className={cn(
"md:hidden fixed inset-x-0 bottom-0 z-40",
"bg-background/95 backdrop-blur border-t border-border",
"pb-[env(safe-area-inset-bottom)]",
)}
>
<ul className="flex items-stretch justify-around py-2">
{items.map((item) => {
const active = isActive(item);
return (
<li
key={item.label}
// flex + items-center + justify-center so the fixed-size
// pill below sits centred inside its equal-width cell;
// without these the pill collapses to the left edge of
// each `flex-1` slot.
className="flex-1 flex items-center justify-center"
>
<Link
href={item.href}
aria-label={item.label}
aria-current={active ? "page" : undefined}
className={cn(
"w-12 h-12 rounded-md flex flex-col items-center justify-center",
active
? "text-white bg-primary"
: "text-muted-foreground hover:text-foreground",
)}
>
{item.icon}
</Link>
</li>
);
})}
</ul>
</nav>
);
}