// ==UserScript==
// @name         Turkdigo Pace Calculator
// @author       Turkdigo + clickhappier
// @namespace    Turkdigo
// @description  Calculate the pace at which you need to complete HITs to earn a target minimum wage.
// @match        https://www.mturk.com/mturk*
// @exclude      https://www.mturk.com/mturk/dashboard*
// @exclude      https://www.mturk.com/*hit_scraper
// @require      http://code.jquery.com/jquery-latest.min.js
// @version      2.1c
// @grant        GM_log
// ==/UserScript==
if ( $("[id*='reward.tooltip']").length ) {  // on a page with at least one HIT's info
// get user values
if ( !localStorage.getItem('targetWage') )
var targetWage = 7.25;
else
var targetWage = Number(localStorage.getItem('targetWage'));
if ( !localStorage.getItem('reloadDelay') )
var reloadDelay = 2;
else
var reloadDelay = Number(localStorage.getItem('reloadDelay'));
// Check to see if we're on a HIT page or on a search results page
if ( $("span[class='looksLikeText'] input[value*='violates']").length || $("span#theTime").length ){  // on a HIT page
var rewardItem = "span[class='reward']:gt(0)";  // skip the 'Total Earned' display
var parentPlacement = "hitPage";
}
else {  // on a search results page
var rewardItem = "span[class='reward']";
var parentPlacement = "searchPage";
}
$(rewardItem).each( function(){
var reward = $(this).html().replace("$","");
var calc = ( ( (3600*Number(reward))/targetWage ) - reloadDelay );
var perMin = ( (Math.round((60/(calc+reloadDelay))*100))/100 );
perMin = (Math.round(perMin*10) / 10);  // round to nearest tenth
if (perMin==0) { perMin = '--'; }
var perHr = ( (Math.round((3600/(calc+reloadDelay))*100))/100 );
perHr = (Math.round(perHr*10) / 10);  // round to nearest tenth
var time = parseInt(calc,10);
time = time < 0 ? 0 : time;
var minutes = Math.floor(time/60);
var seconds = time % 60;
minutes = minutes <= 9 ? "0"+minutes : minutes;
seconds = seconds <= 9 ? "0"+seconds : seconds;
var labelCell = '<a id="pace.tooltip" title="Click $/hr to change target wage.\nClick #sec wait to change expected reload delay.">'
+ 'Pace to earn&nbsp;<br><span class="paceWage">$' + targetWage.toFixed(2) + '/hr</span> at&nbsp;<br>'
+ '<span class="paceWait">'+ reloadDelay.toFixed(1) +'sec wait</span>:&nbsp;</a>';
var calcCell = minutes+':'+seconds + ' per HIT <br>(' + perMin + ' HITs/min,<br>' + perHr + ' HITs/hr)';
if ( parentPlacement == "hitPage" ) {
var builtHtml = '<td><img width="25" border="0" height="1" alt="" src="/media/spacer.gif"></img></td>'
+ '<td align="left" valign="top" nowrap class="capsule_field_title">' + labelCell + '</td>'
+ '<td align="left" valign="top" nowrap>' + calcCell + '</td>';
$(this).closest('tr').append(builtHtml);  // insert pace columns
}
else if ( parentPlacement == "searchPage" ) {
var builtHtml = '<td width="18%" align="right"><table><tr>'
+ '<td rowspan="2" align="left" valign="top" nowrap class="capsule_field_title">' + labelCell + '</td>'
+ '<td align="left" valign="top" nowrap>' + calcCell + '</td>'
+ '</tr></table></td>';
$(this).closest('table').closest('td').prop('width', '15%');  // resize reward+HITsAvail column to make room for pace column
$(this).closest('table').closest('td').after(builtHtml);  // insert pace columns
}
} );
$('.paceWage').click( function(){
var promptWage = Number( window.prompt('Enter your target dollars per hour rate.\nRefresh the page to see the new number\'s effects.').replace(' ','').replace('$','').replace('/hr','').replace('/hour','') ).toFixed(2);
if ( promptWage=='' || isNaN(promptWage) ) { promptWage = 7.25; }  // revert to defaults if no valid input received
localStorage.setItem('targetWage', promptWage);
} );
$('.paceWait').click( function(){
var promptWait = Number( window.prompt('Enter your estimated number of seconds\ndelay between HITs for the next one to load.\nRefresh the page to see the new number\'s effects.').replace(' ','').replace('sec','').replace('s','') ).toFixed(1);
if ( promptWait=='' || isNaN(promptWait) ) { promptWait = 2; }  // revert to defaults if no valid input received
localStorage.setItem('reloadDelay', promptWait);
} );
}