Add comparable solve times to the MUMS Puzzlehunt leaderboard

mums-leaderboard.js

(() => {window.setInterval(() => {
document.querySelectorAll('.betaveros').forEach((node) => {
    node.parentNode.removeChild(node);
});
const makeNode = (t) => {
    const span = document.createElement('span');
    span.className = 'betaveros';
    span.textContent = t;
    return span;
};

const parseHMS = (s) => {
    let acc = 0;
    s.split(/\s+/).forEach(w => {acc = 60 * acc + parseInt(w);});
    return acc;
};
const pad2 = (n) => (n < 10 ? "0" : "") + n;
const asHMS = (t) => {
    const d = Math.floor(t / 60 / 60 / 24);
    const h = pad2(Math.floor(t / 60 / 60) % 24);
    const m = pad2(Math.floor(t / 60) % 60);
    const s = pad2(t % 60);
    return `${d}d ${h}h ${m}m ${s}s`;
};

let lastRelease = new Date();
lastRelease.setUTCHours(lastRelease.getUTCHours() - ((lastRelease.getUTCHours() + 22) % 24));
lastRelease.setUTCMinutes(0);
lastRelease.setUTCSeconds(0);
const releasedPuzzles = 5 * Math.min(5, lastRelease.getUTCDate() - 6);
const currentCost = Math.floor((Date.now() - lastRelease.getTime()) / 1000);

const table = document.querySelector('table');
table.parentNode.insertBefore(makeNode(`In brackets: best possible total solve time (assuming ${releasedPuzzles} released puzzles, current solves incur ${asHMS(currentCost)}; you will need to add extra days for old unlocked puzzles yourself)`), table);

document.querySelectorAll('tr').forEach((tr) => {
    try {
        const tds = tr.getElementsByTagName('td');
        const points = +tds[3].textContent;
        const solved = +tds[4].textContent;
        const average = parseHMS(tds[5].textContent);
        const solvedTotal = solved * average;
        const unsolvedTotal = (releasedPuzzles - solved) * currentCost;
        const total = solvedTotal + unsolvedTotal;
        if (!isNaN(total)) {
            tds[5].appendChild(makeNode(` [${asHMS(total)}]`));
        }
    } catch (e) {console.error(e);}
});
}, 1000);})();