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import { useState } from "react";
import {
Bell,
X,
Pill,
Calendar,
AlertCircle,
Info,
CheckCheck,
} from "lucide-react";
import type { Notification } from "@/lib/hooks/useNotifications";
interface NotificationCenterProps {
notifications: Notification[];
count: number;
onDismiss: (id: string) => void;
onDismissAll: () => void;
}
/**
* Notification bell + dropdown panel.
*
* Shows a badge with the active notification count. Clicking the bell
* opens a dropdown listing overdue medications, upcoming appointments,
* and health reminders. Each notification can be dismissed individually
* or all at once.
*
* Desktop: dropdown positioned below the bell.
* Mobile: also a dropdown (could be upgraded to a sheet later).
*/
export function NotificationBell({
notifications,
count,
onDismiss,
onDismissAll,
}: NotificationCenterProps) {
const [open, setOpen] = useState(false);
return (
<div className="relative">
{/* Bell button */}
<button
onClick={() => setOpen(!open)}
className="relative p-2 rounded-xl text-ink-muted hover:text-ink-base hover:bg-surface-2 transition-colors"
aria-label={`Notifications (${count})`}
>
<Bell size={18} />
{count > 0 && (
<span className="absolute -top-0.5 -right-0.5 min-w-[18px] h-[18px] rounded-full bg-danger-500 text-white text-[10px] font-bold flex items-center justify-center px-1 shadow-sm animate-pulse">
{count > 9 ? "9+" : count}
</span>
)}
</button>
{/* Dropdown panel */}
{open && (
<>
{/* Backdrop — closes on click */}
<div
className="fixed inset-0 z-40"
onClick={() => setOpen(false)}
/>
<div className="absolute right-0 top-full mt-2 w-80 max-h-96 bg-surface-1 border border-line/60 rounded-2xl shadow-card z-50 overflow-hidden animate-in fade-in slide-in-from-bottom-4 duration-200">
{/* Header */}
<div className="flex items-center justify-between px-4 py-3 border-b border-line/40">
<h3 className="font-bold text-sm text-ink-base">Notifications</h3>
<div className="flex items-center gap-2">
{count > 0 && (
<button
onClick={onDismissAll}
className="text-[10px] font-semibold text-brand-500 hover:text-brand-600 flex items-center gap-1"
>
<CheckCheck size={12} />
Dismiss all
</button>
)}
<button
onClick={() => setOpen(false)}
className="text-ink-subtle hover:text-ink-base p-0.5"
>
<X size={14} />
</button>
</div>
</div>
{/* Notification list */}
<div className="overflow-y-auto max-h-72">
{notifications.length === 0 ? (
<div className="text-center py-8 px-4">
<Bell size={24} className="mx-auto text-ink-subtle mb-2" />
<p className="text-sm text-ink-muted">All caught up!</p>
<p className="text-xs text-ink-subtle mt-0.5">
No pending reminders right now
</p>
</div>
) : (
notifications.map((n) => (
<div
key={n.id}
className={`flex items-start gap-3 px-4 py-3 border-b border-line/30 last:border-0 ${
n.urgent
? "bg-danger-500/5"
: "hover:bg-surface-2/50"
}`}
>
<NotificationIcon type={n.type} urgent={n.urgent} />
<div className="flex-1 min-w-0">
<span
className={`text-sm font-semibold block ${
n.urgent ? "text-danger-600 dark:text-danger-400" : "text-ink-base"
}`}
>
{n.title}
</span>
<span className="text-xs text-ink-muted block mt-0.5">
{n.message}
</span>
</div>
<button
onClick={() => onDismiss(n.id)}
className="flex-shrink-0 p-1 text-ink-subtle hover:text-ink-base rounded"
title="Dismiss"
>
<X size={12} />
</button>
</div>
))
)}
</div>
</div>
</>
)}
</div>
);
}
function NotificationIcon({
type,
urgent,
}: {
type: Notification["type"];
urgent: boolean;
}) {
const iconMap = {
medication: Pill,
appointment: Calendar,
reminder: AlertCircle,
info: Info,
};
const Icon = iconMap[type] || Info;
return (
<div
className={`w-8 h-8 rounded-full flex items-center justify-center flex-shrink-0 ${
urgent
? "bg-danger-500/15 text-danger-500"
: type === "medication"
? "bg-rose-500/15 text-rose-500"
: type === "appointment"
? "bg-purple-500/15 text-purple-500"
: "bg-brand-500/15 text-brand-500"
}`}
>
<Icon size={14} />
</div>
);
}
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