agent_backend/components/ui/empty.tsx

import { cva, type VariantProps } from 'class-variance-authority';

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

function Empty({ className, ...props }: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot="empty"
      className={cn(
        'gap-4 rounded-xl border-dashed p-6 flex w-full min-w-0 flex-1 flex-col items-center justify-center text-center text-balance',
        className,
      )}
      {...props}
    />
  );
}

function EmptyHeader({ className, ...props }: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot="empty-header"
      className={cn('gap-2 flex max-w-sm flex-col items-center', className)}
      {...props}
    />
  );
}

const emptyMediaVariants = cva(
  'mb-2 flex shrink-0 items-center justify-center [&_svg]:pointer-events-none [&_svg]:shrink-0',
  {
    variants: {
      variant: {
        default: 'bg-transparent',
        icon: "bg-muted text-foreground flex size-8 shrink-0 items-center justify-center rounded-lg [&_svg:not([class*='size-'])]:size-4",
      },
    },
    defaultVariants: {
      variant: 'default',
    },
  },
);

function EmptyMedia({
  className,
  variant = 'default',
  ...props
}: React.ComponentProps<'div'> & VariantProps<typeof emptyMediaVariants>) {
  return (
    <div
      data-slot="empty-icon"
      data-variant={variant}
      className={cn(emptyMediaVariants({ variant, className }))}
      {...props}
    />
  );
}

function EmptyTitle({ className, ...props }: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot="empty-title"
      className={cn(
        'text-sm font-medium tracking-tight cn-font-heading',
        className,
      )}
      {...props}
    />
  );
}

function EmptyDescription({ className, ...props }: React.ComponentProps<'p'>) {
  return (
    <div
      data-slot="empty-description"
      className={cn(
        'text-sm/relaxed text-muted-foreground [&>a]:underline [&>a]:underline-offset-4 [&>a:hover]:text-primary',
        className,
      )}
      {...props}
    />
  );
}

function EmptyContent({ className, ...props }: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot="empty-content"
      className={cn(
        'gap-2.5 text-sm flex w-full max-w-sm min-w-0 flex-col items-center text-balance',
        className,
      )}
      {...props}
    />
  );
}

export {
  Empty,
  EmptyHeader,
  EmptyTitle,
  EmptyDescription,
  EmptyContent,
  EmptyMedia,
};