'use client';

import { createContext, useContext } from 'react';

import type { ComposerAttachHandle } from './types';

/**
 * Exposes the composer's attach pipeline to descendants — chiefly
 * `ComposerMenuButton`, so a `+`-menu "Attach" item reaches the same
 * `openPicker` as the paperclip button without a prop drill.
 *
 * `null` when no attach pipeline is mounted (composer without
 * `showAttachmentButton` / `attach` config).
 */
const AttachContext = createContext<ComposerAttachHandle | null>(null);

export const AttachProvider = AttachContext.Provider;

/** Read the attach pipeline. Returns `null` outside an attach-enabled composer. */
export function useComposerAttachContext(): ComposerAttachHandle | null {
  return useContext(AttachContext);
}