Breadcrumb

import { ChevronRight, MoreHorizontal } from "lucide-react";
import { cn } from "@/lib/utils";

/**
 * A trail of locations. The current page sits gently debossed — latched
 * into the chassis — and carries aria-current.
 *
 * @example
 * <Breadcrumb>
 *   <BreadcrumbList>
 *     <BreadcrumbItem><BreadcrumbLink href="/">Bench</BreadcrumbLink></BreadcrumbItem>
 *     <BreadcrumbSeparator />
 *     <BreadcrumbItem><BreadcrumbPage>Channel 3</BreadcrumbPage></BreadcrumbItem>
 *   </BreadcrumbList>
 * </Breadcrumb>
 */
function Breadcrumb(props: React.ComponentProps<"nav">) {
  return <nav data-slot="breadcrumb" aria-label="Breadcrumb" {...props} />;
}

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

function BreadcrumbItem({ className, ...props }: React.ComponentProps<"li">) {
  return (
    <li
      data-slot="breadcrumb-item"
      className={cn("inline-flex items-center gap-1.5", className)}
      {...props}
    />
  );
}

function BreadcrumbLink({
  className,
  children,
  ...props
}: React.ComponentProps<"a">) {
  return (
    <a
      data-slot="breadcrumb-link"
      className={cn(
        "rounded-xs focus-ring transition-colors hover:text-ink",
        className,
      )}
      {...props}
    >
      {children}
    </a>
  );
}

function BreadcrumbPage({ className, ...props }: React.ComponentProps<"span">) {
  return (
    <span
      data-slot="breadcrumb-page"
      role="link"
      aria-disabled="true"
      aria-current="page"
      className={cn(
        "rounded-xs bg-well px-1.5 py-0.5 text-ink shadow-deboss-1",
        className,
      )}
      {...props}
    />
  );
}

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

function BreadcrumbEllipsis({
  className,
  ...props
}: React.ComponentProps<"span">) {
  return (
    <span
      data-slot="breadcrumb-ellipsis"
      role="presentation"
      aria-hidden
      className={cn("flex items-center justify-center", className)}
      {...props}
    >
      <MoreHorizontal className="size-3.5" />
      <span className="sr-only">More locations</span>
    </span>
  );
}

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