war time

// ==UserScript==
// @name         Show War Local Time
// @namespace    https://www.torn.com/profiles.php?XID=1936821
// @version      1.2
// @description  Shows the war end time in local time.
// @author       TheFoxMan
// @match        https://www.torn.com/factions.php*
// @run-at       document-end
// ==/UserScript==

// Made for Phillip_J_Fry [2184575].
// DO NOT EDIT.

if (!Document.prototype.find)
    Object.defineProperties(Document.prototype, {
        find: {
            value(selector) {
                return document.querySelector(selector);
            },
            enumerable: false
        },
        findAll: {
            value(selector) {
                return document.querySelectorAll(selector);
            },
            enumerable: false
        }
    });

if (!Element.prototype.find)
    Object.defineProperties(Element.prototype, {
        find: {
            value(selector) {
                return this.querySelector(selector);
            },
            enumerable: false
        },
        findAll: {
            value(selector) {
                return this.querySelectorAll(selector);
            },
            enumerable: false
        }
    });

async function waitFor(sel, parent = document) {
    return new Promise((resolve) => {
        const intervalID = setInterval(() => {
            const el = parent.find(sel);
            if (el) {
                resolve(el);
                clearInterval(intervalID);
            }
        }, 500);
    });
}

(async () => {
    showWarTimes();

    window.addEventListener("hashchange", showWarTimes);
})();

async function showWarTimes() {
    if (window.location.hash.includes("tab="))
        return;

    const warList = await waitFor("#faction_war_list_id");

    if (window.location.hash.includes("tab="))
        return;

    warList.findAll("[class*='warListItem__']").forEach((war) => {
        if (!war.find("[data-warid]")) return;

        const bottomDiv = war.find("[class*='bottomBox__']");
        const timeLeft = parseTime(bottomDiv.textContent);
        bottomDiv.insertAdjacentHTML("beforeend", "<div>" + (new Date(Date.now() + timeLeft)).toLocaleString() + "</div>");
    });
}

function parseTime(str) {
    const splits = str.split(":").map(x => parseInt(x));
    let time = 0;
    time += splits[0] * 24 * 60 * 60;
    time += splits[1] * 60 * 60;
    time += splits[2] * 60;
    time += splits[3];
    time = time * 1000;
    return time;
}