All files / src/components/admin/DataTable ColumnVisibility.tsx

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'use client';

import { useState, useRef, useEffect } from 'react';
import { Table } from '@tanstack/react-table';
import { Icon } from '@/components/ui/icons';
import { cn } from '@/lib/core';

interface ColumnVisibilityDropdownProps<TData> {
  /** Table instance from useReactTable */
  table: Table<TData>;
}

/**
 * Column visibility toggle dropdown for DataTable.
 *
 * Allows users to show/hide table columns dynamically.
 */
export function ColumnVisibilityDropdown<TData>({
  table,
}: ColumnVisibilityDropdownProps<TData>) {
  const [isOpen, setIsOpen] = useState(false);
  const dropdownRef = useRef<HTMLDivElement>(null);

  // Close on click outside
  useEffect(() => {
    const handleClickOutside = (event: MouseEvent) => {
      if (dropdownRef.current && !dropdownRef.current.contains(event.target as Node)) {
        setIsOpen(false);
      }
    };

    if (isOpen) {
      document.addEventListener('mousedown', handleClickOutside);
    }

    return () => {
      document.removeEventListener('mousedown', handleClickOutside);
    };
  }, [isOpen]);

  // Close on Escape
  useEffect(() => {
    const handleKeyDown = (event: KeyboardEvent) => {
      if (event.key === 'Escape') {
        setIsOpen(false);
      }
    };

    if (isOpen) {
      document.addEventListener('keydown', handleKeyDown);
    }

    return () => {
      document.removeEventListener('keydown', handleKeyDown);
    };
  }, [isOpen]);

  const columns = table.getAllColumns().filter((column) => column.getCanHide());

  if (columns.length === 0) return null;

  return (
    <div className="relative" ref={dropdownRef}>
      <button
        onClick={() => setIsOpen(!isOpen)}
        className={cn(
          'p-2 rounded-md transition-colors',
          'hover:bg-gray-100 dark:hover:bg-gray-800',
          isOpen && 'bg-gray-100 dark:bg-gray-800'
        )}
        aria-label="Toggle column visibility"
        aria-expanded={isOpen}
        aria-haspopup="menu"
      >
        <Icon name="columns" className="h-4 w-4 text-gray-500 dark:text-gray-400" />
      </button>

      {isOpen && (
        <div
          className={cn(
            'absolute right-0 top-full mt-1 z-50',
            'min-w-[180px] max-h-[300px] overflow-y-auto',
            'bg-white dark:bg-gray-900',
            'border border-gray-200 dark:border-gray-700',
            'rounded-md shadow-lg',
            'py-1'
          )}
          role="menu"
        >
          <div className="px-3 py-2 text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wide border-b border-gray-200 dark:border-gray-700">
            Toggle Columns
          </div>
          {columns.map((column) => {
            const columnId = column.id;
            const columnName =
              typeof column.columnDef.header === 'string'
                ? column.columnDef.header
                : columnId.charAt(0).toUpperCase() + columnId.slice(1).replace(/([A-Z])/g, ' $1');

            return (
              <label
                key={columnId}
                className={cn(
                  'flex items-center gap-2 px-3 py-2 cursor-pointer',
                  'hover:bg-gray-100 dark:hover:bg-gray-800',
                  'transition-colors'
                )}
                role="menuitemcheckbox"
                aria-checked={column.getIsVisible()}
              >
                <input
                  type="checkbox"
                  checked={column.getIsVisible()}
                  onChange={(e) => column.toggleVisibility(e.target.checked)}
                  className="h-4 w-4 rounded border-gray-300 text-primary-600 focus:ring-primary-500"
                />
                <span className="text-sm text-gray-700 dark:text-gray-300">{columnName}</span>
              </label>
            );
          })}

          {/* Reset button */}
          <div className="border-t border-gray-200 dark:border-gray-700 mt-1 pt-1">
            <button
              onClick={() => table.resetColumnVisibility()}
              className={cn(
                'w-full px-3 py-2 text-left text-sm',
                'text-gray-600 dark:text-gray-400',
                'hover:bg-gray-100 dark:hover:bg-gray-800',
                'transition-colors'
              )}
            >
              Reset to default
            </button>
          </div>
        </div>
      )}
    </div>
  );
}

export default ColumnVisibilityDropdown;