import { logger } from "../common/logger";
import { Actions } from "../common";
import { messageSubscribers } from "./messaging";

export class Caches {
    private _state: string = "";
    constructor() {
        messageSubscribers.addListener(Actions.UPLOAD_STATE, (request, sender, sendResponse) => {
            sendResponse('recieved!');
            this.setState(request.fileName, request.state)
        });
    }
    get state(): string {
        let s = this._state;
        this._state = "";
        return s;
    }
    setState(name: string, content: string) {
        this._state = content;
        logger.info(`State (${name}) recieved. To load it: some_var = new Extractor().load()`);
        // clear cache in 30 seconds
        setTimeout(() => {
            if (this._state) {
                logger.info(`Uploaded state is cleaned after 30 second.`);
                this._state = "";
            }
        }, 30000);
    }
}

export const caches = new Caches();