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ni554n / RARBG - Friendly Release Time Format

// ==UserScript==

// @name                RARBG - Friendly Release Time Format
// @description         Transforms the default "Added" time format into a human readable relative time format.
// @version             2.2

// @namespace           io.github.ni554n
// @match               http*://rarbgto.org/torrents.php*

// @updateURL           https://openuserjs.org/meta/ni554n/RARBG_-_Friendly_Release_Time_Format.meta.js
// @supportURL          https://github.com/ni554n/userscripts/issues
// @license             MIT

// @author              Nissan Ahmed
// @homepageURL         https://ni554n.github.io/
// @contributionURL     https://paypal.me/ni554n

// ==/UserScript==

/* Migration Notice */

console.log(`
 █████  ████████ ████████ ███████ ███    ██ ████████ ██  ██████  ███    ██ 
██   ██    ██       ██    ██      ████   ██    ██    ██ ██    ██ ████   ██ 
███████    ██       ██    █████   ██ ██  ██    ██    ██ ██    ██ ██ ██  ██ 
██   ██    ██       ██    ██      ██  ██ ██    ██    ██ ██    ██ ██  ██ ██ 
██   ██    ██       ██    ███████ ██   ████    ██    ██  ██████  ██   ████ 
                                                                           
                                                                           
`)

console.log(
`Thanks for using "RARBG - Friendly Release Time Format" userscript downloaded from OpenUserJS.

You are seeing this message because due to a change introduced in OpenUserJS,
future updates to this script will no longer be vaiable.

If you like to get updates in the future, please open your userscript manager program,
and remove the "RARBG - Friendly Release Time Format" script.

Then head over to this Github link and install this script again.
https://github.com/ni554n/userscripts/blob/master/rarbg/friendly-release-time-format#installation

It's very easy to do and will take only 3-4 clicks.

Sorry for the inconvenience!`
);


const [releaseTable] = document.getElementsByClassName("lista2t");

if (!releaseTable) throw new Error("Failed to get a reference of the release table.");

// Extract the time zone information from the date time provided on footer.
const footer = document.querySelector(`a[href="/dmca_info.php"]`)?.parentElement;

if (!footer) throw new Error("Failed to get a reference of the website footer.");

const updatedDateString = footer.lastChild.textContent.trim();

const updatedDate = new Date(updatedDateString);
const [timeZoneString] = updatedDateString.match(/(\+|-)\d+$/);

// Transform the added time format in each row except the first row, which is the table header.
for (let i = 1; i < releaseTable.rows.length; i++) {
  const row = releaseTable.rows[i];

  if (row.style.display === "none") continue;

  const addedTimeColumn = row.cells[2];

  const addedTimeString = addedTimeColumn.innerText.trim();
  const addedTimeDate = new Date(`${addedTimeString.replace(" ", "T")}${timeZoneString}`);

  addedTimeColumn.innerText = `${formatAsRelativeTime(addedTimeDate)} ago`;
}

// Format example: 2Y 12M 30d 23h 59m 59s.
function formatAsRelativeTime(addedDate) {
  let duration = Math.abs(addedDate - updatedDate);

  const unitToDuration = {
    s: Math.floor(duration /= 1000) % 60,
    m: Math.floor(duration /= 60) % 60,
    h: Math.floor(duration /= 60) % 24,
    d: Math.floor(duration /= 24) % 30,
    M: Math.floor(duration /= 30) % 12,
    Y: Math.floor(duration /= 12),
  };

  let formattedString = "";

  for (const [unit, duration] of Object.entries(unitToDuration)) {
    if (duration === 0) continue;

    formattedString = `${duration}${unit} ${formattedString}`;
  }

  return formattedString.trim();
};