frontend/src/components/ui/select.tsx

import * as React from 'react';
import * as SelectPrimitive from '@radix-ui/react-select';
import { Check, ChevronDown, ChevronUp } from 'lucide-react';
import { cn } from '../../lib/utils';

const Select = SelectPrimitive.Root;
const SelectGroup = SelectPrimitive.Group;
const SelectValue = SelectPrimitive.Value;

const SelectTrigger = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Trigger>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Trigger>
>(({ className, children, ...props }, ref) => (
  <SelectPrimitive.Trigger
    ref={ref}
    className={cn(
      'flex h-11 w-full items-center justify-between rounded-2xl border border-line bg-paper px-4 py-2 text-sm text-ink shadow-[inset_0_1px_0_color-mix(in_oklab,var(--color-paper)_40%,white)] placeholder:text-muted focus:outline-none focus:ring-2 focus:ring-clay/20 disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1',
      className,
    )}
    {...props}
  >
    {children}
    <SelectPrimitive.Icon asChild>
      <ChevronDown className="h-4 w-4 text-muted" />
    </SelectPrimitive.Icon>
  </SelectPrimitive.Trigger>
));
SelectTrigger.displayName = SelectPrimitive.Trigger.displayName;

const SelectScrollUpButton = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.ScrollUpButton>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollUpButton>
>(({ className, ...props }, ref) => (
  <SelectPrimitive.ScrollUpButton
    ref={ref}
    className={cn('flex cursor-default items-center justify-center py-1 text-muted', className)}
    {...props}
  >
    <ChevronUp className="h-4 w-4" />
  </SelectPrimitive.ScrollUpButton>
));
SelectScrollUpButton.displayName = SelectPrimitive.ScrollUpButton.displayName;

const SelectScrollDownButton = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.ScrollDownButton>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollDownButton>
>(({ className, ...props }, ref) => (
  <SelectPrimitive.ScrollDownButton
    ref={ref}
    className={cn('flex cursor-default items-center justify-center py-1 text-muted', className)}
    {...props}
  >
    <ChevronDown className="h-4 w-4" />
  </SelectPrimitive.ScrollDownButton>
));
SelectScrollDownButton.displayName = SelectPrimitive.ScrollDownButton.displayName;

const SelectContent = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Content>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Content>
>(({ className, children, position = 'popper', ...props }, ref) => (
  <SelectPrimitive.Portal>
    <SelectPrimitive.Content
      ref={ref}
      className={cn(
        'relative z-50 max-h-80 min-w-[8rem] overflow-hidden rounded-3xl border border-line bg-paper shadow-[0_28px_80px_-28px_color-mix(in_oklab,var(--color-ink)_20%,transparent)] data-[state=open]:animate-in data-[state=closed]:animate-out',
        position === 'popper' &&
          'data-[side=bottom]:translate-y-1 data-[side=top]:-translate-y-1',
        className,
      )}
      position={position}
      {...props}
    >
      <SelectScrollUpButton />
      <SelectPrimitive.Viewport
        className={cn(
          'p-1.5',
          position === 'popper' &&
            'h-[var(--radix-select-trigger-height)] w-full min-w-[var(--radix-select-trigger-width)]',
        )}
      >
        {children}
      </SelectPrimitive.Viewport>
      <SelectScrollDownButton />
    </SelectPrimitive.Content>
  </SelectPrimitive.Portal>
));
SelectContent.displayName = SelectPrimitive.Content.displayName;

const SelectLabel = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Label>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Label>
>(({ className, ...props }, ref) => (
  <SelectPrimitive.Label ref={ref} className={cn('px-8 py-2 text-xs font-medium text-muted', className)} {...props} />
));
SelectLabel.displayName = SelectPrimitive.Label.displayName;

const SelectItem = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Item>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Item>
>(({ className, children, ...props }, ref) => (
  <SelectPrimitive.Item
    ref={ref}
    className={cn(
      'relative flex w-full cursor-default select-none items-center rounded-2xl py-2.5 pl-8 pr-3 text-sm text-ink outline-none transition data-[disabled]:pointer-events-none data-[disabled]:opacity-40 data-[highlighted]:bg-sand',
      className,
    )}
    {...props}
  >
    <span className="absolute left-3 flex h-3.5 w-3.5 items-center justify-center">
      <SelectPrimitive.ItemIndicator>
        <Check className="h-4 w-4 text-clay" />
      </SelectPrimitive.ItemIndicator>
    </span>

    <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
  </SelectPrimitive.Item>
));
SelectItem.displayName = SelectPrimitive.Item.displayName;

const SelectSeparator = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Separator>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Separator>
>(({ className, ...props }, ref) => (
  <SelectPrimitive.Separator ref={ref} className={cn('-mx-1 my-1 h-px bg-line', className)} {...props} />
));
SelectSeparator.displayName = SelectPrimitive.Separator.displayName;

export {
  Select,
  SelectContent,
  SelectGroup,
  SelectItem,
  SelectLabel,
  SelectSeparator,
  SelectTrigger,
  SelectValue,
};