import Loader from "../util/loader";
import Config from "../config";

export default class EntityMetaManager {

    /**
     * Array of entity definitions.
     */
    private static _entityDefinitionPromise: Promise<any>;


    /**
     * URL Type map
     */
    private static _urlTypeMapPromise: Promise<any>;

    /**
     * Get definitions
     */
    public static get definitions(): Promise<any> {
        if (!this._entityDefinitionPromise) {
            this._entityDefinitionPromise = Loader.loadSiteJsonFile(Config.instance().siteDataBasePath + "/meta/entities.json");
        }

        return this._entityDefinitionPromise;
    }


    /**
     * Get definitions
     */
    public static get urlTypeMap(): Promise<any> {
        if (!this._urlTypeMapPromise) {
            this._urlTypeMapPromise = Loader.loadSiteJsonFile(Config.instance().siteDataBasePath + "/meta/url-type-map.json");
        }
        return this._urlTypeMapPromise;
    }

}