Add a Google Calendar reminder link to Trademe auction pages
// ==UserScript==
// @name TradeMe Google reminder
// @namespace http://drsr/
// @version 0.8
// @description Add a Google Calendar reminder link to Trademe auction pages
// @require http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js
// @include /https:\/\/www\.trademe\.co\.nz\/.*\/[Ll]isting.*/
// @include /https:\/\/www\.trademe\.co\.nz\/.*\/auction-.*/
// @include /https:\/\/www\.trademe\.co\.nz\/a\.aspx.*/
// @grant GM_addStyle
// @copyright public domain
// ==/UserScript==
// make sure the JQuery is the one loaded by the @require
var myJQ = jQuery.noConflict();
// replace trademe's JS error handler
window.onerror=function(msg, url, linenumber){
console.log('Custom handler Error message: '+msg+'\nURL: '+url+'\nLine Number: '+linenumber);
return true;
};
function getCloseDateTime() {
var closeDateTime = null;
// format of closing time is "Closes: Sat 16th Jun, 3:05 pm." and optionally " This auction may auto-extend"
// doesn't work for periods less than one day where time is e.g. "4 hours", but not really worth a GCAL reminder then
var closing = myJQ("#BidBuyNow_closingContainer,#ClosingTime_ClosingTimeContainer,tm-closing-time").text();
if (closing && closing.indexOf("Closes:") > -1) {
closing = closing.replaceAll("th", "").replaceAll("st","").replaceAll("nd","").replaceAll("am", " am").replaceAll("pm", " pm")
// get just date and time without dayname but including am/pm
closing = myJQ.trim(closing.replace(new RegExp("\n", 'g'), ""));
var closeTime = /Closes:\s+\w+\s+(.*[ap]m).*/.exec(closing);
if (closeTime) {
closeTime = closeTime[1];
// insert year
var timeParts = closeTime.split(",");
closeDateTime = new Date(timeParts[0] + " " + new Date().getFullYear() + " " + timeParts[1]);
}
}
return closeDateTime;
}
/*
* Return a date string as yyyymmddThhmmssZ in UTC.
* based on http://stackoverflow.com/questions/5661487/converting-date-time-to-rfc3339-format-using-either-jquery-or-java-script
*/
// Add leading zero to single digit numbers
function addZ(n) {
return (n<10) ? '0'+n : ''+n;
}
function dateToUTCString(d) {
return d.getUTCFullYear() +
addZ(d.getUTCMonth() + 1) +
addZ(d.getUTCDate()) +
'T' +
addZ(d.getUTCHours()) +
addZ(d.getUTCMinutes()) +
addZ(d.getUTCSeconds()) +
'Z';
}
function addReminderLink(reminderTime) {
var auctionTitle = myJQ("#ListingTitle_title,#ListingTitleBox_TitleText,.tm-marketplace-buyer-options__listing_title").text().trim();
var utcDate = dateToUTCString(reminderTime);
// annoyingly Google Calendar web app won't auto-link to either HTML or plain link in the title or details,
// but other calendar and browser apps e.g. Android should when they popup the reminder
var reminderLink = "https://www.google.com/calendar/event?action=TEMPLATE" +
"&text=TM: " + escape(auctionTitle) +
"&dates=" + utcDate + "/" + utcDate +
"&details=" + escape(location.href);
myJQ(".tm-marketplace-buyer-options__closing-time-rack").after('<tg-rack-item class="o-rack-item">'+
'<div class="o-rack-item__body">'+
'<div class="o-rack-item__main">'+
'<tg-rack-item-primary class="o-rack-item__primary">'+
'<div class="o-rack-item__primary-body">'+
'<div id="tmgr_addToGoogle" class="tmgr_addToGoogle">' +
'<a href="' + reminderLink + '">' +
'<img src="https://www.google.com/calendar/images/ext/gc_button1_en-GB.gif">' +
'</a>' +
'</div>'+
'</div>'+
'</tg-rack-item-primary>'+
'</div>'+
'</div>'+
'</tg-rack-item>');
}
function addReminder() {
if (myJQ("#tmgr_addToGoogle").length==0) {
var reminderTime = getCloseDateTime();
if (reminderTime) {
addReminderLink(reminderTime);
}
}
}
window.setInterval(addReminder, 500);