'use client';

import * as React from 'react';
import * as ScrollAreaPrimitive from '@radix-ui/react-scroll-area';

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

/**
 * Cross-platform styled scrollable area.
 *
 * @description
 * Replaces the native OS scrollbar (which looks different on Windows/macOS/Linux)
 * with a consistent, smooth, styled scrollbar across all platforms.
 *
 * @ai-rules
 * 1. NEVER use `overflow-auto` or `overflow-y-auto` directly in complex modal layouts (e.g., `<DialogContent>`) — use `<ScrollArea>`.
 * 2. The root element MUST have a fixed height or `max-h-` class — without it, the area will grow infinitely.
 */
function ScrollArea({
  className,
  children,
  ...props
}: React.ComponentProps<typeof ScrollAreaPrimitive.Root>) {
  return (
    <ScrollAreaPrimitive.Root
      data-slot="scroll-area"
      className={cn('relative', className)}
      {...props}
    >
      <ScrollAreaPrimitive.Viewport
        data-slot="scroll-area-viewport"
        tabIndex={0}
        role="region"
        aria-label="Região rolável"
        className="focus-visible:ring-ring/50 size-full rounded-[inherit] transition-[color,box-shadow] outline-none focus-visible:ring-[3px] focus-visible:outline-1"
      >
        {children}
      </ScrollAreaPrimitive.Viewport>
      <ScrollBar />
      <ScrollAreaPrimitive.Corner />
    </ScrollAreaPrimitive.Root>
  );
}

function ScrollBar({
  className,
  orientation = 'vertical',
  ...props
}: React.ComponentProps<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>) {
  return (
    <ScrollAreaPrimitive.ScrollAreaScrollbar
      data-slot="scroll-area-scrollbar"
      orientation={orientation}
      className={cn(
        'flex touch-none p-px transition-colors select-none',
        orientation === 'vertical' && 'h-full w-2.5 border-l border-l-transparent',
        orientation === 'horizontal' && 'h-2.5 flex-col border-t border-t-transparent',
        className
      )}
      {...props}
    >
      <ScrollAreaPrimitive.ScrollAreaThumb
        data-slot="scroll-area-thumb"
        className="bg-border relative flex-1 rounded-full"
      />
    </ScrollAreaPrimitive.ScrollAreaScrollbar>
  );
}

export { ScrollArea, ScrollBar };