/**
 * Callbacks visible in the frontend by Shell clients.
 */

import type { IDriveFSOptions } from './drive_fs';

/**
 * Send output string to be displayed in terminal.
 */
export interface IOutputCallback {
  (output: string): void;
}

/**
 * Initialise DriveFS to mount external drive into the shell's filesystem.
 */
export interface IInitDriveFSCallback {
  (options: IDriveFSOptions): void;
}

/**
 * Return dictionary of query params to be used when fetching the specified filename.
 */
export interface IQueryParamsCallback {
  (filename: string): { [key: string]: string };
}

export interface ISize {
  rows: number;
  columns: number;
}

/**
 * Return window size as [rows, columns] where rows and columns are integers >= 0.
 * If the size is unknown they will be zero.
 */
export interface ISizeCallback {
  (): ISize;
}