/**
 * 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.
 */

'use client';

import { cva, type VariantProps } from 'class-variance-authority';
import * as React from 'react';

import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Textarea } from '@/components/ui/textarea';
import { cn } from '@/lib/utils';

function InputGroup({ className, ...props }: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot="input-group"
      role="group"
      className={cn(
        'group/input-group relative flex h-8 w-full min-w-0 items-center rounded-lg border border-input transition-colors outline-none in-data-[slot=combobox-content]:focus-within:border-inherit in-data-[slot=combobox-content]:focus-within:ring-0 has-disabled:bg-input/50 has-disabled:opacity-50 has-[[data-slot=input-group-control]:focus-visible]:border-ring has-[[data-slot=input-group-control]:focus-visible]:ring-3 has-[[data-slot=input-group-control]:focus-visible]:ring-ring/50 has-[[data-slot][aria-invalid=true]]:border-destructive has-[[data-slot][aria-invalid=true]]:ring-3 has-[[data-slot][aria-invalid=true]]:ring-destructive/20 has-[>[data-align=block-end]]:h-auto has-[>[data-align=block-end]]:flex-col has-[>[data-align=block-start]]:h-auto has-[>[data-align=block-start]]:flex-col has-[>textarea]:h-auto dark:bg-input/30 dark:has-disabled:bg-input/80 dark:has-[[data-slot][aria-invalid=true]]:ring-destructive/40 has-[>[data-align=block-end]]:[&>input]:pt-3 has-[>[data-align=block-start]]:[&>input]:pb-3 has-[>[data-align=inline-end]]:[&>input]:pr-1.5 has-[>[data-align=inline-start]]:[&>input]:pl-1.5',
        className
      )}
      {...props}
    />
  );
}

const inputGroupAddonVariants = cva(
  "flex h-auto cursor-text items-center justify-center gap-2 py-1.5 text-sm font-medium text-muted-foreground select-none group-data-[disabled=true]/input-group:opacity-50 [&>kbd]:rounded-[calc(var(--radius)-5px)] [&>svg:not([class*='size-'])]:size-4",
  {
    variants: {
      align: {
        'inline-start':
          'order-first pl-2 has-[>button]:ml-[-0.3rem] has-[>kbd]:ml-[-0.15rem]',
        'inline-end':
          'order-last pr-2 has-[>button]:mr-[-0.3rem] has-[>kbd]:mr-[-0.15rem]',
        'block-start':
          'order-first w-full justify-start px-2.5 pt-2 group-has-[>input]/input-group:pt-2 [.border-b]:pb-2',
        'block-end':
          'order-last w-full justify-start px-2.5 pb-2 group-has-[>input]/input-group:pb-2 [.border-t]:pt-2',
      },
    },
    defaultVariants: {
      align: 'inline-start',
    },
  }
);

function InputGroupAddon({
  className,
  align = 'inline-start',
  ...props
}: React.ComponentProps<'div'> & VariantProps<typeof inputGroupAddonVariants>) {
  return (
    <div
      role="group"
      data-slot="input-group-addon"
      data-align={align}
      className={cn(inputGroupAddonVariants({ align }), className)}
      onClick={(e) => {
        if ((e.target as HTMLElement).closest('button')) {
          return;
        }
        e.currentTarget.parentElement?.querySelector('input')?.focus();
      }}
      {...props}
    />
  );
}

const inputGroupButtonVariants = cva(
  'flex items-center gap-2 text-sm shadow-none',
  {
    variants: {
      size: {
        xs: "h-6 gap-1 rounded-[calc(var(--radius)-3px)] px-1.5 [&>svg:not([class*='size-'])]:size-3.5",
        sm: '',
        'icon-xs':
          'size-6 rounded-[calc(var(--radius)-3px)] p-0 has-[>svg]:p-0',
        'icon-sm': 'size-8 p-0 has-[>svg]:p-0',
      },
    },
    defaultVariants: {
      size: 'xs',
    },
  }
);

function InputGroupButton({
  className,
  type = 'button',
  variant = 'ghost',
  size = 'xs',
  ...props
}: Omit<React.ComponentProps<typeof Button>, 'size'> &
  VariantProps<typeof inputGroupButtonVariants>) {
  return (
    <Button
      type={type}
      data-size={size}
      variant={variant}
      className={cn(inputGroupButtonVariants({ size }), className)}
      {...props}
    />
  );
}

function InputGroupText({ className, ...props }: React.ComponentProps<'span'>) {
  return (
    <span
      className={cn(
        "flex items-center gap-2 text-sm text-muted-foreground [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    />
  );
}

function InputGroupInput({
  className,
  ...props
}: React.ComponentProps<'input'>) {
  return (
    <Input
      data-slot="input-group-control"
      className={cn(
        'flex-1 rounded-none border-0 bg-transparent shadow-none ring-0 focus-visible:ring-0 disabled:bg-transparent aria-invalid:ring-0 dark:bg-transparent dark:disabled:bg-transparent',
        className
      )}
      {...props}
    />
  );
}

function InputGroupTextarea({
  className,
  ...props
}: React.ComponentProps<'textarea'>) {
  return (
    <Textarea
      data-slot="input-group-control"
      className={cn(
        'flex-1 resize-none rounded-none border-0 bg-transparent py-2 shadow-none ring-0 focus-visible:ring-0 disabled:bg-transparent aria-invalid:ring-0 dark:bg-transparent dark:disabled:bg-transparent',
        className
      )}
      {...props}
    />
  );
}

export {
  InputGroup,
  InputGroupAddon,
  InputGroupButton,
  InputGroupInput,
  InputGroupText,
  InputGroupTextarea,
};
