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SpaceHey timestamps with better relative dates and full dates on hover. Shows relative time for recent posts (< 30 days) and exact dates for older content.
// ==UserScript==
// @name Improved SpaceHey Dates
// @namespace https://vasi.dev
// @version 1.0.2
// @description SpaceHey timestamps with better relative dates and full dates on hover. Shows relative time for recent posts (< 30 days) and exact dates for older content.
// @author Vasilis
// @match https://*.spacehey.com/*
// @icon https://static.spacehey.net/icons/clock.png
// @run-at document-idle
// @grant none
// @license MIT
// ==/UserScript==
(function () {
"use strict";
const dateFormatterWithTime = new Intl.DateTimeFormat(undefined, {
dateStyle: "long",
timeStyle: "medium",
});
const dateFormatterNoTime = new Intl.DateTimeFormat(undefined, {
dateStyle: "medium",
});
function formatDate(timestamp, showTime = true) {
const date = new Date(timestamp * 1000);
return (showTime ? dateFormatterWithTime : dateFormatterNoTime).format(
date
);
}
function getRelativeTime(timestamp) {
const now = Math.floor(Date.now() / 1000);
const diff = timestamp - now;
const MS_IN_SECOND = 1000;
const MS_IN_MINUTE = 60 * MS_IN_SECOND;
const MS_IN_HOUR = 60 * MS_IN_MINUTE;
const MS_IN_DAY = 24 * MS_IN_HOUR;
const MS_IN_MONTH = 30 * MS_IN_DAY;
const diffMs = Math.abs(diff * 1000);
if (diffMs < MS_IN_MINUTE) return "just now";
if (diffMs < MS_IN_HOUR) {
const minutes = Math.round(diffMs / MS_IN_MINUTE);
return diff > 0
? `in ${minutes === 1 ? "1 minute" : minutes + " minutes"}`
: `${minutes === 1 ? "1 minute" : minutes + " minutes"} ago`;
}
if (diffMs < MS_IN_DAY) {
const hours = Math.round(diffMs / MS_IN_HOUR);
return diff > 0
? `in ${hours === 1 ? "1 hour" : hours + " hours"}`
: `${hours === 1 ? "1 hour" : hours + " hours"} ago`;
}
if (diffMs < MS_IN_MONTH) {
const days = Math.round(diffMs / MS_IN_DAY);
if (days === 1) return diff > 0 ? "tomorrow" : "yesterday";
return diff > 0 ? `in ${days} days` : `${days} days ago`;
}
return false; // otherwise we will show the exact date
}
function setTimestamp(element) {
const timestamp = element.getAttribute("data-timestamp");
const relativeTime = getRelativeTime(timestamp);
element.textContent = relativeTime || formatDate(timestamp, false);
element.title = formatDate(timestamp);
element.dataset.timeProcessed = "true";
}
function updateTimeElements() {
const timeElements = document.querySelectorAll("time[data-timestamp]");
timeElements.forEach((element) => {
if (!element.dataset.timeProcessed) {
setTimestamp(element);
}
});
}
// spacehey updates its timestamps every 6 seconds, resulting in replacing our changes
// we need to observe the elements and update them again
const observer = new MutationObserver((mutations) => {
observer.disconnect(); // avoid infinite loop on firefox
mutations.forEach((mutation) => {
if (mutation.target.matches("time[data-timestamp]")) {
const element = mutation.target;
if (element.dataset.timeProcessed === "true") {
setTimestamp(element);
}
}
});
document.querySelectorAll("time[data-timestamp]").forEach((element) => {
observer.observe(element, {
characterData: true,
childList: true,
subtree: false,
});
});
});
// required for IMs since timestamps are loaded dynamically
const documentObserver = new MutationObserver((mutations) => {
mutations.forEach((mutation) => {
mutation.addedNodes.forEach((node) => {
if (node.nodeType === Node.ELEMENT_NODE) {
const timeElements = node.querySelectorAll("time[data-timestamp]");
timeElements.forEach((element) => {
setTimestamp(element);
observer.observe(element, { characterData: true, childList: true });
});
}
});
});
});
documentObserver.observe(document.body, { childList: true, subtree: true });
updateTimeElements();
document.querySelectorAll("time[data-timestamp]").forEach((element) => {
observer.observe(element, { characterData: true, childList: true });
});
})();