// SPDX-License-Identifier: AGPL-3.0-only
// Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0

import type * as React from "react";
import * as ResizablePrimitive from "react-resizable-panels";

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

function ResizablePanelGroup({
  className,
  ...props
}: React.ComponentProps<typeof ResizablePrimitive.Group>): React.ReactElement {
  return (
    <ResizablePrimitive.Group
      data-slot="resizable-panel-group"
      className={cn(
        "flex h-full w-full data-[panel-group-direction=vertical]:flex-col",
        className,
      )}
      {...props}
    />
  );
}

function ResizablePanel({
  ...props
}: React.ComponentProps<typeof ResizablePrimitive.Panel>): React.ReactElement {
  return <ResizablePrimitive.Panel data-slot="resizable-panel" {...props} />;
}

function ResizableHandle({
  withHandle,
  className,
  ...props
}: React.ComponentProps<typeof ResizablePrimitive.Separator> & {
  withHandle?: boolean;
}): React.ReactElement {
  return (
    <ResizablePrimitive.Separator
      data-slot="resizable-handle"
      className={cn(
        "group bg-border/80 relative z-10 flex w-px cursor-col-resize items-center justify-center transition-[background-color,box-shadow] duration-150 ease-out after:absolute after:inset-y-0 after:left-1/2 after:w-2 after:-translate-x-1/2 hover:bg-primary/80 hover:shadow-[0_0_16px_color-mix(in_srgb,var(--primary)_55%,transparent)] active:bg-primary/90 active:shadow-[0_0_18px_color-mix(in_srgb,var(--primary)_70%,transparent)] focus-visible:bg-primary/80 focus-visible:ring-1 focus-visible:ring-ring focus-visible:outline-hidden data-[panel-group-direction=vertical]:h-px data-[panel-group-direction=vertical]:w-full data-[panel-group-direction=vertical]:cursor-row-resize data-[panel-group-direction=vertical]:after:left-0 data-[panel-group-direction=vertical]:after:h-2 data-[panel-group-direction=vertical]:after:w-full data-[panel-group-direction=vertical]:after:translate-x-0 data-[panel-group-direction=vertical]:after:-translate-y-1/2 [&[data-panel-group-direction=vertical]>div]:rotate-90",
        className,
      )}
      {...props}
    >
      {withHandle && (
        <div className="z-10 flex h-6 w-1 shrink-0 rounded-lg bg-border transition-[background-color,box-shadow,transform] duration-150 ease-out group-hover:scale-y-110 group-hover:bg-primary/80 group-hover:shadow-[0_0_12px_color-mix(in_srgb,var(--primary)_65%,transparent)] group-active:bg-primary" />
      )}
    </ResizablePrimitive.Separator>
  );
}

export { ResizablePanelGroup, ResizablePanel, ResizableHandle };
