components/ui/resizable.tsx

'use client'

import { GripVertical } from 'lucide-react'
import * as ResizablePrimitive from 'react-resizable-panels'

import { cn } from '@/lib/utils'

const ResizablePanelGroup = ({
  className,
  ...props
}: React.ComponentProps<typeof ResizablePrimitive.PanelGroup>) => (
  <ResizablePrimitive.PanelGroup
    className={cn(
      'flex h-full w-full data-[panel-group-direction=vertical]:flex-col',
      className
    )}
    {...props}
  />
)

const ResizablePanel = ResizablePrimitive.Panel

const ResizableHandle = ({
  withHandle,
  className,
  ...props
}: React.ComponentProps<typeof ResizablePrimitive.PanelResizeHandle> & {
  withHandle?: boolean
}) => (
  <ResizablePrimitive.PanelResizeHandle
    className={cn(
      'group relative flex w-2 mx-1 items-center justify-center bg-transparent hover:bg-border/50 transition-colors after:absolute after:inset-y-0 after:left-1/2 after:w-4 after:-translate-x-1/2 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-1 data-[panel-group-direction=vertical]:h-2 data-[panel-group-direction=vertical]:my-1 data-[panel-group-direction=vertical]:mx-0 data-[panel-group-direction=vertical]:w-full data-[panel-group-direction=vertical]:after:left-0 data-[panel-group-direction=vertical]:after:h-4 data-[panel-group-direction=vertical]:after:w-full data-[panel-group-direction=vertical]:after:-translate-y-1/2 data-[panel-group-direction=vertical]:after:translate-x-0 [&[data-panel-group-direction=vertical]>div]:rotate-90 cursor-col-resize data-[panel-group-direction=vertical]:cursor-row-resize',
      className
    )}
    {...props}
  >
    {withHandle && (
      <div className="z-10 flex h-12 w-1 items-center justify-center rounded-full bg-border/30 hover:bg-border/50 transition-colors opacity-0 group-hover:opacity-100">
        <GripVertical className="h-3 w-3 text-muted-foreground/50" />
      </div>
    )}
  </ResizablePrimitive.PanelResizeHandle>
)

export { ResizablePanelGroup, ResizablePanel, ResizableHandle }