Users Select Table

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import { type ClassValue, clsx } from "clsx";
import { twMerge } from "tailwind-merge";
 
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

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"use client";
 
import Image from "next/image";
import { forwardRef, useMemo, useState, type ComponentPropsWithoutRef } from "react";
 
import { cn } from "@/lib/cn";
import { Check, Minus } from "lucide-react";
 
type User = Readonly<{
  id: string;
  name: string;
  email: string;
  role: string;
  avatar: string;
}>;
 
const USERS: User[] = [
  {
    id: "u1",
    name: "Bidyut Kundu",
    email: "bidyut@studio.dev",
    role: "Admin",
    avatar: "/profile-picture.png",
  },
  {
    id: "u2",
    name: "Rupam Sen",
    email: "rupam@studio.dev",
    role: "Editor",
    avatar: "/woman.png",
  },
  {
    id: "u3",
    name: "Ava Chen",
    email: "ava@studio.dev",
    role: "Viewer",
    avatar: "/profile-picture.png",
  },
  {
    id: "u4",
    name: "Sofia Ortiz",
    email: "sofia@studio.dev",
    role: "Editor",
    avatar: "/woman.png",
  },
];
 
type UsersSelectTableProps = ComponentPropsWithoutRef<"div">;
 
// Bulk-select users table — header checkbox, row selection, and live count. White admin pattern.
export const UsersSelectTable = forwardRef<HTMLDivElement, UsersSelectTableProps>(
  function UsersSelectTable({ className, ...props }, ref) {
    const [selected, setSelected] = useState<Set<string>>(() => new Set(["u1"]));
 
    const allIds = useMemo(() => USERS.map((u) => u.id), []);
    const allSelected = selected.size === USERS.length;
    const someSelected = selected.size > 0 && !allSelected;
 
    function toggleRow(id: string) {
      setSelected((prev) => {
        const next = new Set(prev);
        if (next.has(id)) next.delete(id);
        else next.add(id);
        return next;
      });
    }
 
    function toggleAll() {
      setSelected(allSelected ? new Set() : new Set(allIds));
    }
 
    return (
      <div
        ref={ref}
        className={cn(
          "w-full max-w-lg overflow-hidden rounded-xl border border-neutral-200 bg-white",
          className,
        )}
        {...props}
      >
        <div className="flex items-center justify-between border-b border-neutral-100 px-4 py-3">
          <p className="text-sm font-semibold text-neutral-900">Users</p>
          <span className="text-xs text-neutral-500">
            {selected.size > 0 ? `${selected.size} selected` : `${USERS.length} total`}
          </span>
        </div>
 
        <div className="overflow-x-auto">
          <table className="w-full min-w-[300px] border-collapse text-left text-sm">
            <thead>
              <tr className="text-xs text-neutral-500">
                <th className="w-10 px-4 py-2.5">
                  <button
                    type="button"
                    onClick={toggleAll}
                    aria-label={allSelected ? "Deselect all" : "Select all"}
                    className={cn(
                      "flex size-4 items-center justify-center rounded border transition-colors",
                      allSelected || someSelected
                        ? "border-neutral-900 bg-neutral-900"
                        : "border-neutral-300 bg-white",
                    )}
                  >
                    {allSelected ? (
                      <Check className="size-2.5 text-white" strokeWidth={3} />
                    ) : someSelected ? (
                      <Minus className="size-2.5 text-white" strokeWidth={3} />
                    ) : null}
                  </button>
                </th>
                <th className="px-2 py-2.5 font-medium">Name</th>
                <th className="hidden px-3 py-2.5 font-medium md:table-cell">Email</th>
                <th className="px-4 py-2.5 font-medium">Role</th>
              </tr>
            </thead>
            <tbody>
              {USERS.map((user) => {
                const isOn = selected.has(user.id);
                return (
                  <tr
                    key={user.id}
                    onClick={() => toggleRow(user.id)}
                    className={cn(
                      "cursor-pointer border-t border-neutral-100 transition-colors",
                      isOn ? "bg-neutral-50" : "hover:bg-neutral-50/80",
                    )}
                  >
                    <td className="px-4 py-3">
                      <span
                        className={cn(
                          "flex size-4 items-center justify-center rounded border transition-colors",
                          isOn ? "border-neutral-900 bg-neutral-900" : "border-neutral-300",
                        )}
                      >
                        {isOn ? <Check className="size-2.5 text-white" strokeWidth={3} /> : null}
                      </span>
                    </td>
                    <td className="px-2 py-3">
                      <div className="flex items-center gap-2.5">
                        <Image
                          src={user.avatar}
                          alt={user.name}
                          width={28}
                          height={28}
                          className="size-7 shrink-0 rounded-full object-cover"
                        />
                        <span className="font-medium text-neutral-900">{user.name}</span>
                      </div>
                    </td>
                    <td className="hidden px-3 py-3 text-neutral-500 md:table-cell">{user.email}</td>
                    <td className="px-4 py-3 text-neutral-600">{user.role}</td>
                  </tr>
                );
              })}
            </tbody>
          </table>
        </div>
      </div>
    );
  },
);
 
UsersSelectTable.displayName = "UsersSelectTable";