'use client';

import * as React from 'react';
import { CheckIcon, ChevronRightIcon, CircleIcon } from '@/icons';
import * as DropdownMenuPrimitive from 'radix-ui/dropdown-menu';

import { cn } from '@/lib/utils';
import { iconSizing } from '@/lib/cva-presets';

/** Shared by every row in the menu, whatever its selection behaviour. */
const menuItemBase = cn(
  'relative flex cursor-default items-center gap-2 rounded-sm py-1.5 text-sm outline-hidden select-none',
  'focus:bg-accent focus:text-accent-foreground',
  'data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
  iconSizing,
  "[&_svg:not([class*='text-'])]:text-muted-foreground"
);

/** Shared by the floating surfaces (root content and submenus). */
const menuSurface = cn(
  'min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground',
  'duration-(--ui-duration-base) ease-(--ui-ease-standard)',
  'data-[state=open]:animate-in data-[state=open]:fade-in-0 data-[state=open]:zoom-in-95',
  'data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95',
  'data-[side=top]:slide-in-from-bottom-2 data-[side=bottom]:slide-in-from-top-2',
  'data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2'
);

export type DropdownMenuProps = React.ComponentProps<typeof DropdownMenuPrimitive.Root>;
export interface DropdownMenuItemProps
  extends React.ComponentProps<typeof DropdownMenuPrimitive.Item> {
  /** Indent the label to line up with rows that have a check or radio marker. */
  inset?: boolean;
  variant?: 'default' | 'destructive';
}

/**
 * Menu of commands triggered by a button.
 *
 * For choosing a *value* in a form, use Select — it submits with the form and
 * is announced as a combobox. This is for actions.
 */
function DropdownMenu(props: DropdownMenuProps) {
  return <DropdownMenuPrimitive.Root data-slot="dropdown-menu" {...props} />;
}

function DropdownMenuPortal(props: React.ComponentProps<typeof DropdownMenuPrimitive.Portal>) {
  return <DropdownMenuPrimitive.Portal data-slot="dropdown-menu-portal" {...props} />;
}

function DropdownMenuTrigger(
  props: React.ComponentProps<typeof DropdownMenuPrimitive.Trigger>
) {
  return <DropdownMenuPrimitive.Trigger data-slot="dropdown-menu-trigger" {...props} />;
}

function DropdownMenuContent({
  className,
  sideOffset = 4,
  ...props
}: React.ComponentProps<typeof DropdownMenuPrimitive.Content>) {
  return (
    <DropdownMenuPrimitive.Portal>
      <DropdownMenuPrimitive.Content
        data-slot="dropdown-menu-content"
        sideOffset={sideOffset}
        className={cn(
          menuSurface,
          'z-(--ui-z-dropdown) max-h-(--radix-dropdown-menu-content-available-height) origin-(--radix-dropdown-menu-content-transform-origin) overflow-x-hidden overflow-y-auto shadow-md',
          className
        )}
        {...props}
      />
    </DropdownMenuPrimitive.Portal>
  );
}

function DropdownMenuGroup(props: React.ComponentProps<typeof DropdownMenuPrimitive.Group>) {
  return <DropdownMenuPrimitive.Group data-slot="dropdown-menu-group" {...props} />;
}

function DropdownMenuItem({
  className,
  inset,
  variant = 'default',
  ...props
}: DropdownMenuItemProps) {
  return (
    <DropdownMenuPrimitive.Item
      data-slot="dropdown-menu-item"
      data-inset={inset}
      data-variant={variant}
      className={cn(
        menuItemBase,
        'px-2 data-[inset]:pl-8',
        'data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 data-[variant=destructive]:focus:text-destructive',
        'dark:data-[variant=destructive]:focus:bg-destructive/20',
        'data-[variant=destructive]:*:[svg]:text-destructive!',
        className
      )}
      {...props}
    />
  );
}

function DropdownMenuCheckboxItem({
  className,
  children,
  checked,
  ...props
}: React.ComponentProps<typeof DropdownMenuPrimitive.CheckboxItem>) {
  return (
    <DropdownMenuPrimitive.CheckboxItem
      data-slot="dropdown-menu-checkbox-item"
      className={cn(menuItemBase, 'pr-2 pl-8', className)}
      checked={checked}
      {...props}
    >
      <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
        <DropdownMenuPrimitive.ItemIndicator>
          <CheckIcon className="size-4" />
        </DropdownMenuPrimitive.ItemIndicator>
      </span>
      {children}
    </DropdownMenuPrimitive.CheckboxItem>
  );
}

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

function DropdownMenuRadioItem({
  className,
  children,
  ...props
}: React.ComponentProps<typeof DropdownMenuPrimitive.RadioItem>) {
  return (
    <DropdownMenuPrimitive.RadioItem
      data-slot="dropdown-menu-radio-item"
      className={cn(menuItemBase, 'pr-2 pl-8', className)}
      {...props}
    >
      <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
        <DropdownMenuPrimitive.ItemIndicator>
          <CircleIcon className="size-2 fill-current" />
        </DropdownMenuPrimitive.ItemIndicator>
      </span>
      {children}
    </DropdownMenuPrimitive.RadioItem>
  );
}

function DropdownMenuLabel({
  className,
  inset,
  ...props
}: React.ComponentProps<typeof DropdownMenuPrimitive.Label> & { inset?: boolean }) {
  return (
    <DropdownMenuPrimitive.Label
      data-slot="dropdown-menu-label"
      data-inset={inset}
      className={cn('px-2 py-1.5 text-sm font-medium data-[inset]:pl-8', className)}
      {...props}
    />
  );
}

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

/** Right-aligned keyboard hint. Purely visual — bind the shortcut yourself. */
function DropdownMenuShortcut({ className, ...props }: React.ComponentProps<'span'>) {
  return (
    <span
      data-slot="dropdown-menu-shortcut"
      className={cn('ml-auto text-xs tracking-widest text-muted-foreground', className)}
      {...props}
    />
  );
}

function DropdownMenuSub(props: React.ComponentProps<typeof DropdownMenuPrimitive.Sub>) {
  return <DropdownMenuPrimitive.Sub data-slot="dropdown-menu-sub" {...props} />;
}

function DropdownMenuSubTrigger({
  className,
  inset,
  children,
  ...props
}: React.ComponentProps<typeof DropdownMenuPrimitive.SubTrigger> & { inset?: boolean }) {
  return (
    <DropdownMenuPrimitive.SubTrigger
      data-slot="dropdown-menu-sub-trigger"
      data-inset={inset}
      className={cn(
        menuItemBase,
        'px-2 data-[inset]:pl-8 data-[state=open]:bg-accent data-[state=open]:text-accent-foreground',
        className
      )}
      {...props}
    >
      {children}
      <ChevronRightIcon className="ml-auto size-4" />
    </DropdownMenuPrimitive.SubTrigger>
  );
}

function DropdownMenuSubContent({
  className,
  ...props
}: React.ComponentProps<typeof DropdownMenuPrimitive.SubContent>) {
  return (
    <DropdownMenuPrimitive.SubContent
      data-slot="dropdown-menu-sub-content"
      className={cn(
        menuSurface,
        'z-(--ui-z-dropdown) origin-(--radix-dropdown-menu-content-transform-origin) shadow-lg',
        className
      )}
      {...props}
    />
  );
}

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