import { EventEmitter } from "node:events";

import { createContext } from "react";

export type PublicProps = {
  /**
	The stdin stream passed to `render()` in `options.stdin`, or `process.stdin` by default. Useful if your app needs to handle user input.
	*/
  readonly stdin: NodeJS.ReadableStream;

  /**
	Ink exposes this function via own `<StdinContext>` to be able to handle Ctrl+C, that's why you should use Ink's `setRawMode` instead of `process.stdin.setRawMode`. If the `stdin` stream passed to Ink does not support setRawMode, this function does nothing.
	*/
  readonly setRawMode: (value: boolean) => void;

  /**
	A boolean flag determining if the current `stdin` supports `setRawMode`. A component using `setRawMode` might want to use `isRawModeSupported` to nicely fall back in environments where raw mode is not supported.
	*/
  readonly isRawModeSupported: boolean;
};

export type Props = PublicProps & {
  /**
	Enable or disable bracketed paste mode on the terminal. When enabled, pasted text is wrapped in escape sequences that allow it to be distinguished from typed input.
	*/
  readonly setBracketedPasteMode: (value: boolean) => void;

  readonly internal_exitOnCtrlC: boolean;

  readonly internal_eventEmitter: EventEmitter;
};

/**
`StdinContext` is a React context that exposes the input stream.
*/
// eslint-disable-next-line @typescript-eslint/naming-convention
export const StdinContext = createContext<Props>({
  stdin: process.stdin,
  // eslint-disable-next-line @typescript-eslint/naming-convention
  internal_eventEmitter: new EventEmitter(),
  setRawMode() {},
  setBracketedPasteMode() {},
  isRawModeSupported: false,
  // eslint-disable-next-line @typescript-eslint/naming-convention
  internal_exitOnCtrlC: true,
});

StdinContext.displayName = "InternalStdinContext";