agent_backend/components/ui/breadcrumb.tsx

import * as React from 'react';
import { mergeProps } from '@base-ui/react/merge-props';
import { useRender } from '@base-ui/react/use-render';

import { cn } from '@/lib/utils';
import { ChevronRightIcon, MoreHorizontalIcon } from 'lucide-react';

function Breadcrumb({ className, ...props }: React.ComponentProps<'nav'>) {
  return (
    <nav
      aria-label="breadcrumb"
      data-slot="breadcrumb"
      className={cn(className)}
      {...props}
    />
  );
}

function BreadcrumbList({ className, ...props }: React.ComponentProps<'ol'>) {
  return (
    <ol
      data-slot="breadcrumb-list"
      className={cn(
        'text-muted-foreground gap-1.5 text-sm flex flex-wrap items-center wrap-break-word',
        className,
      )}
      {...props}
    />
  );
}

function BreadcrumbItem({ className, ...props }: React.ComponentProps<'li'>) {
  return (
    <li
      data-slot="breadcrumb-item"
      className={cn('gap-1 inline-flex items-center', className)}
      {...props}
    />
  );
}

function BreadcrumbLink({
  className,
  render,
  ...props
}: useRender.ComponentProps<'a'>) {
  return useRender({
    defaultTagName: 'a',
    props: mergeProps<'a'>(
      {
        className: cn('hover:text-foreground transition-colors', className),
      },
      props,
    ),
    render,
    state: {
      slot: 'breadcrumb-link',
    },
  });
}

function BreadcrumbPage({ className, ...props }: React.ComponentProps<'span'>) {
  return (
    <span
      data-slot="breadcrumb-page"
      role="link"
      aria-disabled="true"
      aria-current="page"
      className={cn('text-foreground font-normal', className)}
      {...props}
    />
  );
}

function BreadcrumbSeparator({
  children,
  className,
  ...props
}: React.ComponentProps<'li'>) {
  return (
    <li
      data-slot="breadcrumb-separator"
      role="presentation"
      aria-hidden="true"
      className={cn('[&>svg]:size-3.5', className)}
      {...props}
    >
      {children ?? <ChevronRightIcon className="cn-rtl-flip" />}
    </li>
  );
}

function BreadcrumbEllipsis({
  className,
  ...props
}: React.ComponentProps<'span'>) {
  return (
    <span
      data-slot="breadcrumb-ellipsis"
      role="presentation"
      aria-hidden="true"
      className={cn(
        'size-5 [&>svg]:size-4 flex items-center justify-center',
        className,
      )}
      {...props}
    >
      <MoreHorizontalIcon />
      <span className="sr-only">More</span>
    </span>
  );
}

export {
  Breadcrumb,
  BreadcrumbList,
  BreadcrumbItem,
  BreadcrumbLink,
  BreadcrumbPage,
  BreadcrumbSeparator,
  BreadcrumbEllipsis,
};