common.js

const PREFIX = "osasoft-better-subscriptions_";

const DEFAULT_SETTINGS = {
    "settings.hide.watched.label": true,
    "settings.hide.watched.default": true,
    "settings.hide.watched.refresh.rate": 3000,
    "settings.log.enabled": false
};

const SETTINGS_KEY = "settings";

let brwsr;
try {
    brwsr = browser;
} catch (e) {
    if (e instanceof ReferenceError) {
        brwsr = chrome;
    }
}

function getStorage() {
    return brwsr.storage.local; //TODO: use sync?
}

function getSyncStorage() {
    return brwsr.storage.sync;
}

function setVideoInStorage(videoId) {
    let obj = {};
    obj[videoId] = Date.now();
    getStorage().set(obj);
}

function hide(element) {
    element.classList.add("hidden");
}

function show(element) {
    element.classList.remove("hidden");
}