let express = require('express');
require('dotenv').config();
let app = express();




class EchoServer {
    #paths = {
        "API": {
            "echo": "/:word/echo"
        }
    }

    /* Echo. 

    WORD (string): The data to be repeated. 
    returns: (object) the formatted repeat response
    */
    echo(WORD) {
        let RESPONSE = {"echo": WORD};
        return (RESPONSE);
    }

    /* Create the response. 
    
    REQUEST (object): The request object. 
    RESPONSE (object): The response object. 
    */
    respond(REQUEST, RESPONSE) {
        RESPONSE.json(this.echo(REQUEST.params.word));
    }

    constructor() {
        app.get(this.#paths[`API`][`echo`], (REQUEST, RESPONSE, next) => {this.respond(REQUEST, RESPONSE);})
    }
}

new EchoServer();

module.exports = app;