import { Menu as MenuPrimitive } from "@base-ui/react/menu";
import { Check, ChevronRight, Circle } from "lucide-react";
import type * as React from "react";

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

/**
 * DropdownMenu — Base UI Menu-backed primitive (shadcn-style). Replaces the plan app's
 * hand-rolled Approve dropdown / label picker / header menus. Icons via lucide-react.
 */
function DropdownMenu({ ...props }: MenuPrimitive.Root.Props) {
  return <MenuPrimitive.Root {...props} />;
}

function DropdownMenuPortal({ ...props }: MenuPrimitive.Portal.Props) {
  return <MenuPrimitive.Portal {...props} />;
}

function DropdownMenuTrigger({ ...props }: MenuPrimitive.Trigger.Props) {
  return <MenuPrimitive.Trigger data-slot="dropdown-menu-trigger" {...props} />;
}

const dropdownMenuPopupClassName =
  "z-50 min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground origin-[var(--transform-origin)] transition-[opacity,scale] duration-150 data-[starting-style]:opacity-0 data-[starting-style]:scale-95 data-[ending-style]:opacity-0 data-[ending-style]:scale-95";

function DropdownMenuContent({
  className,
  side,
  sideOffset = 4,
  align,
  alignOffset,
  ...props
}: MenuPrimitive.Popup.Props &
  Pick<MenuPrimitive.Positioner.Props, "side" | "sideOffset" | "align" | "alignOffset">) {
  return (
    <MenuPrimitive.Portal>
      <MenuPrimitive.Positioner
        className="isolate z-50 outline-none"
        side={side}
        sideOffset={sideOffset}
        align={align}
        alignOffset={alignOffset}
      >
        <MenuPrimitive.Popup
          data-slot="dropdown-menu-content"
          className={cn(dropdownMenuPopupClassName, "shadow-md", className)}
          {...props}
        />
      </MenuPrimitive.Positioner>
    </MenuPrimitive.Portal>
  );
}

function DropdownMenuGroup({ ...props }: MenuPrimitive.Group.Props) {
  return <MenuPrimitive.Group data-slot="dropdown-menu-group" {...props} />;
}

function DropdownMenuItem({
  className,
  inset,
  variant = "default",
  ...props
}: MenuPrimitive.Item.Props & {
  inset?: boolean;
  variant?: "default" | "destructive";
}) {
  return (
    <MenuPrimitive.Item
      data-slot="dropdown-menu-item"
      data-inset={inset}
      data-variant={variant}
      className={cn(
        "relative flex cursor-default select-none items-center gap-2 rounded-md px-2 py-1.5 font-medium outline-hidden data-[highlighted]:bg-accent data-[highlighted]:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 data-[inset]:pl-8 data-[variant=destructive]:text-destructive data-[variant=destructive]:data-[highlighted]:bg-destructive/10 data-[variant=destructive]:data-[highlighted]:text-destructive dark:data-[variant=destructive]:data-[highlighted]:bg-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 [&_svg:not([class*='text-'])]:text-muted-foreground",
        className,
      )}
      {...props}
    />
  );
}

function DropdownMenuCheckboxItem({
  className,
  children,
  checked,
  ...props
}: MenuPrimitive.CheckboxItem.Props) {
  return (
    <MenuPrimitive.CheckboxItem
      data-slot="dropdown-menu-checkbox-item"
      className={cn(
        "relative flex cursor-default select-none items-center gap-2 rounded-md py-1.5 pl-8 pr-2 text-sm outline-hidden data-[highlighted]:bg-accent data-[highlighted]:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
        className,
      )}
      checked={checked}
      {...props}
    >
      <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
        <MenuPrimitive.CheckboxItemIndicator>
          <Check className="size-4" />
        </MenuPrimitive.CheckboxItemIndicator>
      </span>
      {children}
    </MenuPrimitive.CheckboxItem>
  );
}

function DropdownMenuRadioGroup({ ...props }: MenuPrimitive.RadioGroup.Props) {
  return <MenuPrimitive.RadioGroup data-slot="dropdown-menu-radio-group" {...props} />;
}

function DropdownMenuRadioItem({
  className,
  children,
  ...props
}: MenuPrimitive.RadioItem.Props) {
  return (
    <MenuPrimitive.RadioItem
      data-slot="dropdown-menu-radio-item"
      className={cn(
        "relative flex cursor-default select-none items-center gap-2 rounded-md py-1.5 pl-8 pr-2 text-sm outline-hidden data-[highlighted]:bg-accent data-[highlighted]:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
        className,
      )}
      {...props}
    >
      <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
        <MenuPrimitive.RadioItemIndicator>
          <Circle className="size-2 fill-current" />
        </MenuPrimitive.RadioItemIndicator>
      </span>
      {children}
    </MenuPrimitive.RadioItem>
  );
}

function DropdownMenuLabel({
  className,
  inset,
  ...props
}: MenuPrimitive.GroupLabel.Props & { inset?: boolean }) {
  return (
    <MenuPrimitive.GroupLabel
      data-slot="dropdown-menu-label"
      data-inset={inset}
      className={cn("px-2 py-1.5 font-medium data-[inset]:pl-8", className)}
      {...props}
    />
  );
}

function DropdownMenuSeparator({ className, ...props }: MenuPrimitive.Separator.Props) {
  return (
    <MenuPrimitive.Separator
      data-slot="dropdown-menu-separator"
      className={cn("-mx-1 my-1 h-px bg-border", className)}
      {...props}
    />
  );
}

function DropdownMenuShortcut({
  className,
  keys,
  children,
  ...props
}: React.ComponentProps<"span"> & { keys?: string[] }) {
  return (
    <span
      data-slot="dropdown-menu-shortcut"
      className={cn("ml-auto flex items-center gap-1 text-[11px] text-muted-foreground", className)}
      {...props}
    >
      {keys
        ? keys.map((key, i) => (
            <span key={key} className="flex items-center gap-1">
              {i > 0 && <span>then</span>}
              <kbd className="font-sans">{key}</kbd>
            </span>
          ))
        : children}
    </span>
  );
}

function DropdownMenuSub({ ...props }: MenuPrimitive.SubmenuRoot.Props) {
  return <MenuPrimitive.SubmenuRoot {...props} />;
}

function DropdownMenuSubTrigger({
  className,
  inset,
  children,
  ...props
}: MenuPrimitive.SubmenuTrigger.Props & { inset?: boolean }) {
  return (
    <MenuPrimitive.SubmenuTrigger
      data-slot="dropdown-menu-sub-trigger"
      data-inset={inset}
      className={cn(
        "flex cursor-default select-none items-center rounded-md px-2 py-1.5 text-sm outline-hidden data-[highlighted]:bg-accent data-[highlighted]:text-accent-foreground data-[inset]:pl-8 data-[popup-open]:bg-accent data-[popup-open]:text-accent-foreground",
        className,
      )}
      {...props}
    >
      {children}
      <ChevronRight className="ml-auto size-4" />
    </MenuPrimitive.SubmenuTrigger>
  );
}

function DropdownMenuSubContent({
  className,
  side = "right",
  sideOffset = 0,
  align = "start",
  alignOffset = -3,
  ...props
}: MenuPrimitive.Popup.Props &
  Pick<MenuPrimitive.Positioner.Props, "side" | "sideOffset" | "align" | "alignOffset">) {
  return (
    <MenuPrimitive.Portal>
      <MenuPrimitive.Positioner
        className="isolate z-50 outline-none"
        side={side}
        sideOffset={sideOffset}
        align={align}
        alignOffset={alignOffset}
      >
        <MenuPrimitive.Popup
          data-slot="dropdown-menu-sub-content"
          className={cn(dropdownMenuPopupClassName, "shadow-lg", className)}
          {...props}
        />
      </MenuPrimitive.Positioner>
    </MenuPrimitive.Portal>
  );
}

export {
  DropdownMenu,
  DropdownMenuPortal,
  DropdownMenuTrigger,
  DropdownMenuContent,
  DropdownMenuGroup,
  DropdownMenuLabel,
  DropdownMenuItem,
  DropdownMenuCheckboxItem,
  DropdownMenuRadioGroup,
  DropdownMenuRadioItem,
  DropdownMenuSeparator,
  DropdownMenuShortcut,
  DropdownMenuSub,
  DropdownMenuSubTrigger,
  DropdownMenuSubContent,
};