/**
 * General loader class
 */
import FetchLoaderBackend from "./fetch-loader-backend";
import {LoaderBackend} from "./loader-backend";

export default class Loader {

    /**
     * Loader implementation - defaults to fetch
     */
    private static _loaderBackend: LoaderBackend = new FetchLoaderBackend();


    /**
     * Load a site JSON file
     *
     * @param path
     */
    public static loadSiteJsonFile(path: any, singleInstance: boolean = false): Promise<any> {

        return new Promise<any>(done => {
            this._loaderBackend.loadJSONFile(path).then(result => {
                done(result);
            }).catch(error => {
                done(singleInstance ? {} : []);
            });
        });

    }

    /**
     * Set the loader implementation in use here
     *
     * @param value
     */
    static set loaderBackend(value: LoaderBackend) {
        this._loaderBackend = value;
    }


}