frontend/src/components/ui/input-group.tsx

'use client';

import * as React from 'react';
import { cva, type VariantProps } from 'class-variance-authority';
import { cn } from '@/lib/utils';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Textarea } from '@/components/ui/textarea';

function InputGroup({ className, ...props }: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot='input-group'
      role='group'
      className={cn(
        'group/input-group border-input dark:bg-input/30 relative flex w-full items-center rounded-md border shadow-xs transition-[color,box-shadow] outline-none',
        'h-9 min-w-0 has-[>textarea]:h-auto',

        // Variants based on alignment.
        'has-[>[data-align=inline-start]]:[&>input]:pl-2',
        'has-[>[data-align=inline-end]]:[&>input]:pr-2',
        'has-[>[data-align=block-start]]:h-auto has-[>[data-align=block-start]]:flex-col has-[>[data-align=block-start]]:[&>input]:pb-3',
        'has-[>[data-align=block-end]]:h-auto has-[>[data-align=block-end]]:flex-col has-[>[data-align=block-end]]:[&>input]:pt-3',

        // Focus state.
        'has-[[data-slot=input-group-control]:focus-visible]:border-ring has-[[data-slot=input-group-control]:focus-visible]:ring-ring/50 has-[[data-slot=input-group-control]:focus-visible]:ring-[3px]',

        // Error state.
        'has-[[data-slot][aria-invalid=true]]:ring-destructive/20 has-[[data-slot][aria-invalid=true]]:border-destructive dark:has-[[data-slot][aria-invalid=true]]:ring-destructive/40',

        className
      )}
      {...props}
    />
  );
}

const inputGroupAddonVariants = cva(
  "text-muted-foreground flex h-auto cursor-text items-center justify-center gap-2 py-1.5 text-sm font-medium select-none [&>svg:not([class*='size-'])]:size-4 [&>kbd]:rounded-[calc(var(--radius)-5px)] group-data-[disabled=true]/input-group:opacity-50",
  {
    variants: {
      align: {
        'inline-start': 'order-first pl-3 has-[>button]:ml-[-0.45rem] has-[>kbd]:ml-[-0.35rem]',
        'inline-end': 'order-last pr-3 has-[>button]:mr-[-0.45rem] has-[>kbd]:mr-[-0.35rem]',
        'block-start': 'order-first w-full justify-start px-3 pt-3 [.border-b]:pb-3 group-has-[>input]/input-group:pt-2.5',
        'block-end': 'order-last w-full justify-start px-3 pb-3 [.border-t]:pt-3 group-has-[>input]/input-group:pb-2.5',
      },
    },
    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('text-sm shadow-none flex gap-2 items-center', {
  variants: {
    size: {
      xs: "h-6 gap-1 px-2 rounded-[calc(var(--radius)-5px)] [&>svg:not([class*='size-'])]:size-3.5 has-[>svg]:px-2",
      sm: 'h-8 px-2.5 gap-1.5 rounded-md has-[>svg]:px-2.5',
      'icon-xs': 'size-6 rounded-[calc(var(--radius)-5px)] 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(
        "text-muted-foreground flex items-center gap-2 text-sm [&_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 focus-visible:ring-0 dark: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-3 shadow-none focus-visible:ring-0 dark:bg-transparent',
        className
      )}
      {...props}
    />
  );
}

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