'use client';

import * as React from 'react';
import * as SliderPrimitive from '@radix-ui/react-slider';

import { cn } from '../../shared/utils';

/**
 * Draggable range input for numeric value selection.
 *
 * @description
 * Built on Radix UI Slider with robust mobile touch support.
 * Supports single thumb and dual-thumb range selection.
 *
 * @ai-rules
 * 1. Pass the initial value as a numeric array: `defaultValue={[50]}` — NOT `defaultValue={50}`.
 * 2. For dual-thumb range selectors, pass two values: `defaultValue={[20, 80]}`.
 * 3. Connect to React Hook Form via `onValueChange` — the callback receives `number[]`.
 */
const Slider = React.forwardRef<
  React.ElementRef<typeof SliderPrimitive.Root>,
  React.ComponentPropsWithoutRef<typeof SliderPrimitive.Root>
>(({ className, ...props }, ref) => {
  const { defaultValue, value, min = 0, max = 100 } = props;
  const _values = React.useMemo(
    () => (Array.isArray(value) ? value : Array.isArray(defaultValue) ? defaultValue : [min, max]),
    [value, defaultValue, min, max]
  );

  return (
    <SliderPrimitive.Root
      ref={ref}
      data-slot="slider"
      className={cn(
        'relative flex w-full touch-none items-center select-none data-[disabled]:opacity-50 data-[orientation=vertical]:h-full data-[orientation=vertical]:min-h-44 data-[orientation=vertical]:w-auto data-[orientation=vertical]:flex-col',
        className
      )}
      {...props}
    >
      <SliderPrimitive.Track
        data-slot="slider-track"
        className={cn(
          'bg-muted relative grow overflow-hidden rounded-full data-[orientation=horizontal]:h-4 data-[orientation=horizontal]:w-full data-[orientation=horizontal]:ml-2 data-[orientation=horizontal]:mr-1 data-[orientation=vertical]:h-full data-[orientation=vertical]:w-1.5 data-[orientation=vertical]:my-2'
        )}
      >
        <SliderPrimitive.Range
          data-slot="slider-range"
          className={cn(
            'bg-primary absolute rounded-r-sm data-[orientation=horizontal]:h-full data-[orientation=vertical]:rounded-b-sm data-[orientation=vertical]:w-full'
          )}
        />
      </SliderPrimitive.Track>
      {Array.from({ length: _values.length }, (_, index) => (
        <SliderPrimitive.Thumb
          data-slot="slider-thumb"
          key={index}
          aria-label={_values.length > 1 ? `Thumb ${index + 1}` : 'Selecionar valor'}
          className="border-primary bg-background ring-ring/50 block size-4 shrink-0 rounded-full border shadow-sm transition-[color,box-shadow] hover:ring-4 focus-visible:ring-4 focus-visible:outline-hidden disabled:pointer-events-none disabled:opacity-50"
        />
      ))}
    </SliderPrimitive.Root>
  );
});
Slider.displayName = SliderPrimitive.Root.displayName;

export { Slider };