/**
 * Copyright 2026 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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

import { Separator } from '@/components/ui/separator';
import { cn } from '@/lib/utils';

const buttonGroupVariants = cva(
  "group/button-group flex w-fit items-stretch *:focus-visible:relative *:focus-visible:z-10 has-[>[data-slot=button-group]]:gap-2 has-[select[aria-hidden=true]:last-child]:[&>[data-slot=select-trigger]:last-of-type]:rounded-r-lg [&>[data-slot=select-trigger]:not([class*='w-'])]:w-fit [&>input]:flex-1",
  {
    variants: {
      orientation: {
        horizontal:
          '[&>*:not(:first-child)]:rounded-l-none [&>*:not(:first-child)]:border-l-0 [&>*:not(:last-child)]:rounded-r-none [&>[data-slot]:not(:has(~[data-slot]))]:rounded-r-lg!',
        vertical:
          'flex-col [&>*:not(:first-child)]:rounded-t-none [&>*:not(:first-child)]:border-t-0 [&>*:not(:last-child)]:rounded-b-none [&>[data-slot]:not(:has(~[data-slot]))]:rounded-b-lg!',
      },
    },
    defaultVariants: {
      orientation: 'horizontal',
    },
  }
);

function ButtonGroup({
  className,
  orientation,
  ...props
}: React.ComponentProps<'div'> & VariantProps<typeof buttonGroupVariants>) {
  return (
    <div
      role="group"
      data-slot="button-group"
      data-orientation={orientation}
      className={cn(buttonGroupVariants({ orientation }), className)}
      {...props}
    />
  );
}

function ButtonGroupText({
  className,
  asChild = false,
  ...props
}: React.ComponentProps<'div'> & {
  asChild?: boolean;
}) {
  const Comp = asChild ? Slot.Root : 'div';

  return (
    <Comp
      className={cn(
        "flex items-center gap-2 rounded-lg border bg-muted px-2.5 text-sm font-medium [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    />
  );
}

function ButtonGroupSeparator({
  className,
  orientation = 'vertical',
  ...props
}: React.ComponentProps<typeof Separator>) {
  return (
    <Separator
      data-slot="button-group-separator"
      orientation={orientation}
      className={cn(
        'relative self-stretch bg-input data-horizontal:mx-px data-horizontal:w-auto data-vertical:my-px data-vertical:h-auto',
        className
      )}
      {...props}
    />
  );
}

export {
  ButtonGroup,
  ButtonGroupSeparator,
  ButtonGroupText,
  buttonGroupVariants,
};
