/**
 * @factory/ui — DropdownMenu (Radix `@radix-ui/react-dropdown-menu` wrapper).
 *
 * Keyboard is HANDLED BY RADIX: ArrowUp/Down move the highlight, Home/End
 * jump, Enter/Space activates the highlighted item, Escape and Tab close
 * (Tab returns focus to the trigger). We only re-export the primitives and
 * add a small anchor-state hook for programmatic open/close.
 */
import * as React from "react";
import * as RadixMenu from "@radix-ui/react-dropdown-menu";
import { clsx } from "clsx";

export const DropdownMenu = RadixMenu.Root;
export const DropdownMenuTrigger = RadixMenu.Trigger;
export const DropdownMenuGroup = RadixMenu.Group;
export const DropdownMenuPortal = RadixMenu.Portal;
export const DropdownMenuRadioGroup = RadixMenu.RadioGroup;

export const DropdownMenuContent = React.forwardRef<
  React.ElementRef<typeof RadixMenu.Content>,
  React.ComponentPropsWithoutRef<typeof RadixMenu.Content>
>(({ className, sideOffset = 4, ...props }, ref) => (
  <RadixMenu.Portal>
    <RadixMenu.Content
      ref={ref}
      sideOffset={sideOffset}
      className={clsx(
        "z-50 min-w-[10rem] rounded-md border border-border bg-popover p-1",
        "text-popover-foreground shadow-md focus:outline-none",
        className,
      )}
      {...props}
    />
  </RadixMenu.Portal>
));
DropdownMenuContent.displayName = "DropdownMenuContent";

export const DropdownMenuItem = React.forwardRef<
  React.ElementRef<typeof RadixMenu.Item>,
  React.ComponentPropsWithoutRef<typeof RadixMenu.Item>
>(({ className, ...props }, ref) => (
  <RadixMenu.Item
    ref={ref}
    className={clsx(
      "relative flex cursor-pointer select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm",
      "outline-none data-[highlighted]:bg-accent data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
      className,
    )}
    {...props}
  />
));
DropdownMenuItem.displayName = "DropdownMenuItem";

export const DropdownMenuCheckboxItem = React.forwardRef<
  React.ElementRef<typeof RadixMenu.CheckboxItem>,
  React.ComponentPropsWithoutRef<typeof RadixMenu.CheckboxItem>
>(({ className, children, checked, ...props }, ref) => (
  <RadixMenu.CheckboxItem
    ref={ref}
    checked={checked ?? false}
    className={clsx(
      "flex cursor-pointer items-center gap-2 rounded-sm px-2 py-1.5 text-sm",
      "outline-none data-[highlighted]:bg-accent",
      className,
    )}
    {...props}
  >
    <RadixMenu.ItemIndicator>✓</RadixMenu.ItemIndicator>
    {children}
  </RadixMenu.CheckboxItem>
));
DropdownMenuCheckboxItem.displayName = "DropdownMenuCheckboxItem";

export const DropdownMenuLabel = ({
  className,
  ...props
}: React.HTMLAttributes<HTMLDivElement>) => (
  <div className={clsx("px-2 py-1.5 text-xs text-muted-foreground", className)} {...props} />
);

export const DropdownMenuSeparator = ({
  className,
  ...props
}: React.ComponentPropsWithoutRef<typeof RadixMenu.Separator>) => (
  <RadixMenu.Separator className={clsx("my-1 h-px bg-border", className)} {...props} />
);

export interface MenuState {
  open: boolean;
  anchor: { x: number; y: number } | null;
  openAt(x: number, y: number): void;
  close(): void;
}

/** Programmatic open/close state; pair with `DropdownMenu open={open} onOpenChange={…}`. */
export function useMenuState(): MenuState {
  const [open, setOpen] = React.useState(false);
  const [anchor, setAnchor] = React.useState<{ x: number; y: number } | null>(null);
  const openAt = React.useCallback((x: number, y: number) => {
    setAnchor({ x, y });
    setOpen(true);
  }, []);
  const close = React.useCallback(() => setOpen(false), []);
  return { open, anchor, openAt, close } as const;
}