import { Event } from './entities/event';

declare var BASE_URL: string;

export default function request(endpoint: string, callback: Function, data?: any) {
    let xmlhttp = new XMLHttpRequest();
    let log = "";

    if (data) {
        log = JSON.stringify(data);
    }

    xmlhttp.onreadystatechange = function () {
        if (xmlhttp.readyState == XMLHttpRequest.DONE) {
            if (xmlhttp.status == 200) {
                callback(this.response);
            } else if (xmlhttp.status != 200) {
                if (this.response == "") {
                    console.log("[FATAL ERROR] The server is currently offline for maintentance. Logging is unavailable at this moment.");
                } else {
                    console.log("[FATAL ERROR] " + this.response + ". Logging will not be continued for this session.");
                }
            }
        }
    };

    xmlhttp.open("POST", BASE_URL + endpoint, true);
    xmlhttp.setRequestHeader("Content-type", "application/json");
    if (log != "") {
        xmlhttp.send(log);
    } else {
        xmlhttp.send();
    }
}