"use client";

import * as React from "react";

import { cn } from "@/lib/utils";

export type NotificationFilter = "all" | "unread" | "read";

export interface NotificationItem {
  id: string;
  title: string;
  description?: string;
  timestamp: string;
  read?: boolean;
  icon?: React.ReactNode;
}

export interface NotificationCenterPanelProps {
  notifications: NotificationItem[];
  onMarkAllRead?: () => void;
  onNotificationClick?: (id: string) => void;
  className?: string;
}

const defaultIcon = (
  <svg
    aria-hidden="true"
    viewBox="0 0 24 24"
    fill="none"
    stroke="currentColor"
    strokeWidth="1.6"
    strokeLinecap="round"
    strokeLinejoin="round"
    className="h-5 w-5"
  >
    <path d="M6 8a6 6 0 0 1 12 0c0 7 3 9 3 9H3s3-2 3-9" />
    <path d="M10.3 21a1.94 1.94 0 0 0 3.4 0" />
  </svg>
);

export function NotificationCenterPanel({
  notifications,
  onMarkAllRead,
  onNotificationClick,
  className,
}: NotificationCenterPanelProps) {
  const [filter, setFilter] = React.useState<NotificationFilter>("all");

  const filteredNotifications = notifications.filter((n) => {
    if (filter === "unread") return !n.read;
    if (filter === "read") return n.read;
    return true;
  });

  const unreadCount = notifications.filter((n) => !n.read).length;

  return (
    <div
      className={cn(
        "flex flex-col rounded-2xl border border-border bg-card",
        className
      )}
    >
      <div className="flex items-center justify-between border-b border-border px-5 py-4">
        <div className="flex items-center gap-2">
          <h3 className="text-sm font-semibold text-foreground">
            Notifications
          </h3>
          {unreadCount > 0 ? (
            <span className="inline-flex h-5 min-w-[1.25rem] items-center justify-center rounded-full bg-primary px-1.5 text-xs font-semibold text-primary-foreground">
              {unreadCount}
            </span>
          ) : null}
        </div>
        {unreadCount > 0 ? (
          <button
            type="button"
            onClick={onMarkAllRead}
            className="text-xs font-medium text-muted-foreground transition hover:text-foreground"
          >
            Mark all read
          </button>
        ) : null}
      </div>

      <div className="flex gap-1 border-b border-border px-4 py-2">
        {(["all", "unread", "read"] as NotificationFilter[]).map((f) => (
          <button
            key={f}
            type="button"
            onClick={() => setFilter(f)}
            className={cn(
              "rounded-md px-3 py-1 text-xs font-medium transition",
              filter === f
                ? "bg-muted text-foreground"
                : "text-muted-foreground hover:bg-muted hover:text-foreground"
            )}
          >
            {f.charAt(0).toUpperCase() + f.slice(1)}
          </button>
        ))}
      </div>

      <div className="flex-1 divide-y divide-border overflow-auto">
        {filteredNotifications.length === 0 ? (
          <p className="px-5 py-8 text-center text-sm text-muted-foreground">
            No notifications
          </p>
        ) : (
          filteredNotifications.map((notification) => (
            <button
              key={notification.id}
              type="button"
              onClick={() => onNotificationClick?.(notification.id)}
              className={cn(
                "flex w-full items-start gap-4 px-5 py-4 text-left transition hover:bg-muted",
                !notification.read && "bg-muted/50"
              )}
            >
              <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-full border border-border bg-background text-muted-foreground">
                {notification.icon ?? defaultIcon}
              </div>
              <div className="flex-1 overflow-hidden">
                <div className="flex items-start justify-between gap-2">
                  <p
                    className={cn(
                      "text-sm",
                      notification.read
                        ? "text-muted-foreground"
                        : "font-semibold text-foreground"
                    )}
                  >
                    {notification.title}
                  </p>
                  {!notification.read ? (
                    <span
                      className="mt-1.5 h-2 w-2 shrink-0 rounded-full bg-primary"
                      aria-label="Unread"
                    />
                  ) : null}
                </div>
                {notification.description ? (
                  <p className="mt-0.5 truncate text-xs text-muted-foreground">
                    {notification.description}
                  </p>
                ) : null}
                <p className="mt-1 text-xs text-muted-foreground">
                  {notification.timestamp}
                </p>
              </div>
            </button>
          ))
        )}
      </div>
    </div>
  );
}
Notification Center Panel

Notifications

Dependencies

Files

Installation
