import { Server } from "../Server";
import { Request } from "../Request";
import { Response } from "../Response";
/**
 * @summary
 * Class to handle directory requests.
 * When there is first request to directory with default
 * `index.js` script inside, this class is automatically
 * created and method `Start()` is executed.
 * All request are normally handled by method `HttpHandle()`.
 * If there is detected any file change inside this file
 * or inside file included in this file (on development server
 * instance), the module `web-dev-server` automaticly reloads
 * all necesssary dependent source codes, stops previous instance
 * by method `Stop`() and recreates this application instance again
 * by `Start()` method. The same realoding procedure is executed,
 * if there is any unhandled error inside method `HttpHandle()`
 * (to develop more comfortably).
 */
export interface IApplication {
    /**
     * @summary Application start point.
     */
    Start?(server: Server, firstRequest: Request, firstResponse: Response): Promise<void>;
    /**
     * @summary
     * This method is executed each request to directory with
     * `index.js` script inside or into any non-existing directory,
     * inside directory with this script.
     */
    HttpHandle?(request: Request, response: Response): Promise<void>;
    /**
     * @summary Application end point, called on unhandled error
     * (on development server instance) or on server stop event.
     */
    Stop?(server: Server): Promise<void>;
}