WebGemini Utility UserScript

// ==UserScript==
// @name         WebGemini Time Addon
// @namespace    https://gist.github.com/tarekis
// @version      0.1
// @description  Get da time!
// @author       Clemens Himmer
// @match        http://srv0056/*
// ==/UserScript==


(function() {
    // Utility Methods
    function insertAfter(newNode, referenceNode) {
        referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
    }
    function floatZero(inputInt){
        if(inputInt < 10){
            return "0"+inputInt;
        }
        else{
            return inputInt;
        }
    }
    function timeDifference(inputDateA,inputDateB){
        var resultDate = new Date(inputDateA - inputDateB);
        // If the results don't overlap
        if(resultDate.getHours()*60 + resultDate.getMinutes() + resultDate.getTimezoneOffset() > 0){
            resultDate.setMinutes(resultDate.getMinutes() + resultDate.getTimezoneOffset());
            return resultDate;
        }
        else{
            return new Date(0,0,0,0);
        }
    }
    Element.prototype.remove = function() {
        this.parentElement.removeChild(this);
    };

    var domArray = document.getElementById("ctl00_ContentPlaceHolder1_DataGridBuchungen").childNodes[1].childNodes;
    var timeNodes = [];
    // Read time nodes
    for(var i = 1, len = domArray.length -1; i < len; i++)
    {
        timeNodes.push(domArray[i]);
    }
    var currentDate = new Date();
    // Convert to dates
    for(i = 0, len0 = timeNodes.length; i < len0; i++)
    {
        var rawValue = timeNodes[i].childNodes[2].innerHTML;
        var splitRawValue = rawValue.split(":");
        timeNodes[i] = new Date(currentDate.getFullYear(),currentDate.getMonth(),currentDate.getDate(),splitRawValue[0],splitRawValue[1],0);
    }
    // Check if lunch was made yet
    var noLunch = false;
    if(timeNodes.length === 1){
        noLunch = true;
    }
    // If not currently in a pause or finished, add the current Date for calculation purposes
    var lastTimeNodeIsCurrent = false;
    if(timeNodes.length % 2 === 1)
    {
        timeNodes.push(currentDate);
        lastTimeNodeIsCurrent = true;
    }
    // Calculate the time user has worked today
    var overallTime = 0;
    for(var j = 0, len1 = timeNodes.length; j < len1; j+=2)
    {
        overallTime += timeNodes[j+1] - timeNodes[j];
    }
    var currentTotalTime = new Date(0,0,0,0,0,0,overallTime);
    var averageTotalTimeNeeded = new Date(0,0,0,8,30,0);
    var maximumTotalTime = new Date(0,0,0,9,0,0);
    var lunchBreak = 0;
    var lunchBreakTime = 0;
    // If no lunch break was made yet, assume half an hour
    if(noLunch){
        lunchBreak = 1.8e6; // Half an hour in ms
    }
    else{
        lunchBreakTime = timeDifference(timeNodes[2] - timeNodes[1]);
    }
    // Clear and (re)show all values for the current time
    function showCurrentValues(){
        // Clear old values
        currentDate = new Date();
        if(lastTimeNodeIsCurrent){
            timeNodes.pop();
            timeNodes.push(currentDate);
            overallTime = 0;
            for(var j = 0, len1 = timeNodes.length; j < len1; j+=2)
            {
                overallTime += timeNodes[j+1] - timeNodes[j];
            }
            currentTotalTime = new Date(0,0,0,0,0,0,overallTime);
        }
        var currentTotalTimeElement = document.getElementById("currentTotalTime");
        var averageTotalTimeElement = document.getElementById("averageTotalTime");
        var maximumTotalTimeElement = document.getElementById("maximumTotalTime");
        if(currentTotalTimeElement && averageTotalTimeElement && maximumTotalTimeElement){
            currentTotalTimeElement.remove();
            averageTotalTimeElement.remove();
            maximumTotalTimeElement.remove();
        }
        // Calculate Dates
        var timeLeftToAverageTotalTimeNeeded = new Date(averageTotalTimeNeeded - currentTotalTime + lunchBreak);
        var averageTotalTime = new Date(new Date().setMilliseconds(currentDate.getMilliseconds() + timeLeftToAverageTotalTimeNeeded.getTime()));
        var timeLeftToMaximumTotalTime = new Date(maximumTotalTime - currentTotalTime + lunchBreak);
        var maximumTotalTimeLeavingTime = new Date(new Date().setMilliseconds(currentDate.getMilliseconds() + timeLeftToMaximumTotalTime.getTime()));
        // Add display Elements to Document
        // Create current Time Element
        var currentTotalTimeDiv = document.createElement("div");
        currentTotalTimeDiv.setAttribute("style", "left: 750px; position: absolute; top: 32px;width:500px;font-family: Arial;font-size: small;");
        currentTotalTimeDiv.setAttribute("id", "currentTotalTime");
        currentTotalTimeDiv.innerHTML = "Total Time if leaving now:</br><b>"+floatZero(currentTotalTime.getHours()) +":"+ floatZero(currentTotalTime.getMinutes())+"</b>";
        // Create time to average Element
        var averageTotalTimeDiv = document.createElement("div");
        // If lunch was shorter than 60 minutes, add a 9 hour maximum worktime reminder
        averageTotalTimeDiv.setAttribute("style", "left: 750px; position: absolute; top: 67px;width:500px;font-family: Arial;font-size: small;");
        averageTotalTimeDiv.setAttribute("id", "averageTotalTime");
        var averageTotalTimeReadable = floatZero(averageTotalTime.getHours()) +":"+ floatZero(averageTotalTime.getMinutes());
        var averageTotalTimeLeft = timeDifference(averageTotalTime,currentDate);
        var averageTotalTimeLeftReadable = floatZero(averageTotalTimeLeft.getHours()) +":"+ floatZero(averageTotalTimeLeft.getMinutes());
        averageTotalTimeDiv.innerHTML = "Leaving time for average working hours" + (noLunch ? " with a 30 minute lunch time" : "") + ":</br><b>"+averageTotalTimeReadable+"</b>"+ (averageTotalTimeLeft.getFullYear() >= 1970 ? ", " + averageTotalTimeLeftReadable+" left": "");
        // Create time to maximum Element
        var maximumTotalTimeDiv = document.createElement("div");
        if(lunchBreakTime < 3.6e6){
            maximumTotalTimeDiv.setAttribute("style", "left: 750px; position: absolute; top: 102px;width:500px;font-family: Arial;font-size: small;");
            maximumTotalTimeDiv.setAttribute("id", "maximumTotalTime");
            var maximumTotalTimeReadable = floatZero(maximumTotalTimeLeavingTime.getHours()) +":"+ floatZero(maximumTotalTimeLeavingTime.getMinutes());
            var maximumTotalTimeLeft = timeDifference(maximumTotalTimeLeavingTime,currentDate);
            var maximumTotalTimeLeftReadable = floatZero(maximumTotalTimeLeft.getHours()) +":"+ floatZero(maximumTotalTimeLeft.getMinutes());
            maximumTotalTimeDiv.innerHTML = "Leaving time for <b>maximum</b> working hours" + (noLunch ? " with a 30 minute lunch time" : " ") + ":</br><b>"+maximumTotalTimeReadable+"</b>"+ (maximumTotalTimeLeft.getFullYear() >= 1970 ? ", " + maximumTotalTimeLeftReadable+" left": "");
        }
        // Append Elements
        insertAfter(currentTotalTimeDiv,document.getElementById("ctl00_ContentPlaceHolder1_DataGridBuchungen"));
        insertAfter(averageTotalTimeDiv,document.getElementById("ctl00_ContentPlaceHolder1_DataGridBuchungen"));
        insertAfter(maximumTotalTimeDiv,document.getElementById("ctl00_ContentPlaceHolder1_DataGridBuchungen"));
    }
    // Initiate minutly refresh interval
    showCurrentValues();
    setInterval(showCurrentValues, 60000);
})();