// ==UserScript==
// @name         New Userscript
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://nullnyan.net/*
// @grant        none
// ==/UserScript==

window.Hide = {
    board: /\/(\w+)\/?/i.exec(window.location.pathname)[1],

    toggleThread: (opNum, keepRecord) => {
        let op = _.id(`P${opNum}`);
        let board = window.Hide.board;

        if (op) {
            let thread = op.parentNode;
            !localStorage.hiddenThreads && localStorage.setItem('hiddenThreads', '{"placeholder": true}');

            /* Fuck javascript */
            let wholeHiddenList = JSON.parse(localStorage.hiddenThreads);
            let thisBoardHiddenList = wholeHiddenList[board] || {};

            !!thisBoardHiddenList[opNum] ? (!keepRecord ? delete thisBoardHiddenList[opNum] : void(0)) : thisBoardHiddenList[opNum] = true;
            wholeHiddenList[board] = thisBoardHiddenList;
            localStorage.setItem('hiddenThreads', JSON.stringify(wholeHiddenList));

            thread.style.display = (thread.style.display == 'none'?'':'none');
        }
    },

    init: () => {
        let board = window.Hide.board;
        if (!!localStorage.hiddenThreads) {
            for (let num in JSON.parse(localStorage.hiddenThreads)[board]) window.Hide.toggleThread(num, true);
        }
    }
};

Hide.init();                                  // Everything except media is loaded
//window.addEventListener('load', Hide.init); // Page is fully loaded