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

import { cn } from "@/lib/utils";

/**
 * Radix renders exactly the thumbs we put in the tree, so a hard-coded single
 * `<Thumb />` left a two-value slider (the shop's price range) with a handle on
 * the minimum only: the maximum could not be dragged at all. Render one thumb
 * per value instead, which also keeps single-value sliders working.
 */
const Slider = React.forwardRef<
  React.ElementRef<typeof SliderPrimitive.Root>,
  React.ComponentPropsWithoutRef<typeof SliderPrimitive.Root>
>(({ className, value, defaultValue, min = 0, ...props }, ref) => {
  const initialValues = value ?? defaultValue ?? [min];
  const thumbCount = Array.isArray(initialValues) && initialValues.length > 0 ? initialValues.length : 1;

  return (
    <SliderPrimitive.Root
      ref={ref}
      value={value}
      defaultValue={defaultValue}
      min={min}
      className={cn("relative flex w-full touch-none select-none items-center", className)}
      {...props}
    >
      <SliderPrimitive.Track className="relative h-1.5 w-full grow overflow-hidden rounded-full bg-primary/20">
        <SliderPrimitive.Range className="absolute h-full bg-primary" />
      </SliderPrimitive.Track>
      {Array.from({ length: thumbCount }).map((_, index) => (
        <SliderPrimitive.Thumb
          key={index}
          className="block h-[18px] w-[18px] cursor-grab rounded-full border-2 border-brand-gold bg-card shadow-[0_1px_4px_rgb(0_0_0_/_0.3)] transition-transform hover:scale-110 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 focus-visible:ring-offset-background active:cursor-grabbing disabled:pointer-events-none disabled:opacity-50"
        />
      ))}
    </SliderPrimitive.Root>
  );
});
Slider.displayName = SliderPrimitive.Root.displayName;

export { Slider };