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budget.html
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budget.html
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<!DOCTYPE html>
<html manifest="cache_manifest.manifest">
<head>
<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no" />
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="format-detection" content="telephone=no">
<link rel="apple-touch-icon" href="budget.png"/>
<title>Budget</title>
<style type="text/css">
body {
background-color:#000;
margin:0;
padding:0;
color: white;
font-family: "Helvetica Neue";
font-weight: 100;
height: 100%;
width: 100%;
}
#keypad {
width: 100%;
height: 45%;
position: fixed;
top: 45%;
left: 0;
}
.key {
width: 32%;
height: 32%;
display: inline-block;
margin: 0px;
text-align: center;
vertical-align: middle;
font-size: 48px;
color: white;
}
#remaining {
position: fixed;
top: 0%;
right: 0%;
text-align: right;
font-size: 48pt;
padding-right: 20px;
}
#perday {
font-size: 48pt;
color: white;
text-align: left;
position: fixed;
padding-left: 20px;
left: 0%;
top: 0%;
}
#chart {
position: fixed;
top: 16%;
left: 20px;
right: 20px;
height: 10%;
}
.bar {
display: inline-block;
vertical-align: middle;
border-radius: 25px;
margin-right: 2px;
min-width: 2px;
}
.lastAmount {
display: inline-block;
vertical-align: middle;
font-size: 12px;
color: white;
font-weight: bold;
}
#confirm {
position: fixed;
display: none;
top: 16%;
left: 20px;
right: 20px;
height: 10%;
text-align: center;
z-index: 2;
}
#amount {
text-align: right;
font-size: 48pt;
padding-right: 20px;
position: fixed;
right: 0%;
top: 30%;
}
#category {
position: fixed;
width: 33%;
top: 30%;
left: 20px;
height: 1.25em;
padding-top: .25em;
padding-bottom: .25em;
text-align: center;
font-size: 32pt;
margin-bottom: 4px;
color: white;
border-radius: 25px;
}
.label {
font-size: 12px;
font-weight: bold;
}
.good {
color: #00AFB5;
}
.bad {
color: #A30000;
}
.button {
display: inline-block;
vertical-align: middle;
font-size: 48px;
}
</style>
<script type='text/javascript'>
var categoryColors = {
eat: '#A30000',
groc: '#004777',
misc: '#FF7700',
car: '#EFD28D',
fun: '#00AFB5',
inc: '#000000'
};
var goodColor = "#00AFB5";
var badColor = "#A30000";
var amount = "";
var sign = "-";
var category = "eat";
window.onload = function() {
if(localStorage.getItem("history") === null) {
localStorage.history = "[]";
}
update();
};
function reset() {
localStorage.history = "[]";
amount = "";
sign = "-";
var category = "eat";
update();
}
function appendDigit(digit) {
if(amount.length >= 4)
return;
if(amount === "" && digit === 0)
return;
amount = amount + digit;
update();
}
function deleteLastDigit() {
if(amount.length > 0) {
amount = amount.substring(0, amount.length - 1);
update();
}
}
function addHistory(category, amount) {
var history = JSON.parse(localStorage.getItem('history'));
history.push([ getDate(), category, amount ]);
localStorage.history = JSON.stringify(history);
}
function getAmountRemaining() {
var history = JSON.parse(localStorage.getItem('history'));
var amount = 0;
for(var i = 0; i < history.length; i++)
amount += history[i][2];
return amount;
}
function enter() {
if(amount === "")
return;
var amountNumber = parseInt(amount);
if(sign === "-")
amountNumber = -amountNumber;
addHistory(category, amountNumber);
amount = "";
sign = "-";
update();
}
function undo() {
var history = JSON.parse(localStorage.getItem('history'));
history.pop();
localStorage.history = JSON.stringify(history);
update();
}
function toggleSign() {
if(sign === "+") sign = "-";
else sign = "+";
update();
}
function getPayDay() {
return [25,25,25,25,25,25,25,25,25,25,25,25][(new Date()).getMonth()];
}
function getDaysInMonth() {
today = new Date();
// If we're past pay day, return the number of days in the next month.
if(today.getDate() >= getPayDay())
today.setMonth(today.getMonth() + 1);
return new Date(today.getYear(), today.getMonth(), 0).getDate();
}
function getDaysRemaining() {
var payday = getPayDay();
var daysInMonth = getDaysInMonth();
var date = (new Date()).getDate();
var daysRemaining = date < payday ? (payday - date - 1) : (daysInMonth - date) + payday;
return daysRemaining;
}
function update() {
var signtext = sign === "+" ? "+" : "−";
var daysLeft = getDaysRemaining();
var amountRemaining = getAmountRemaining();
document.getElementById('remaining').innerHTML = "<span>$" + amountRemaining + "<div class='label'>" + daysLeft + " days left</div></span>";
document.getElementById('amount').innerHTML = (amount === "" ? "" : signtext) + "$" + (amount === "" ? "0" : amount);
document.getElementById('keysign').innerHTML = signtext;
document.getElementById('remaining').style.color = amountRemaining < 0 ? badColor : goodColor;
document.getElementById('amount').style.color = amount === "" ? "white" : sign === "-" ? badColor : goodColor;
var perDayText = "$" + (Math.floor(amountRemaining / daysLeft)) + "/day, " + daysLeft + " days";
var net = Math.floor(amountRemaining - (getTotalIncome() / getDaysInMonth()) * daysLeft);
var extraAmountText = "<span style='color:" + (net < 0 ? badColor : goodColor) + "'>$" + net + "<div class='label'>today</div></span>";
document.getElementById('perday').innerHTML = extraAmountText;
document.getElementById('category').innerHTML = category;
document.getElementById('category').style.backgroundColor = categoryColors[category];
plot();
}
function plot() {
var history = JSON.parse(localStorage.history);
var chart = "";
var maxAmount = -1;
for(var i = 0; i < history.length; i++) {
if(history[i][1] !== 'inc')
maxAmount = Math.max(Math.abs(history[i][2]), maxAmount);
}
// Spread the entries across the width of the plot, leaving room for the label at the end.
var width = Math.min(10, 90.0 / history.length);
// Make a bar for each of the entries.
for(var i = 0; i < history.length; i++) {
var category = history[i][1];
if(category !== 'inc') {
var color = categoryColors[category];
var day = dayToString(history[i][0]);
var amount = history[i][2];
var height = Math.floor((100 * Math.abs(amount)) / maxAmount);
var bar = "<div class='bar' style='background-color: " + color + ";width:calc(" + width + "%-2px);height:" + height + "%'></div>";
chart = chart + bar;
}
}
// Make a bar for the last amount for feedback and to facilitate undo.
if(maxAmount >= 0)
chart = chart + " <div class='lastAmount'>$" + Math.abs(amount) + "</div>";
else
chart = "<div class='button'>no purchases</div>";
document.getElementById('chart').innerHTML = chart;
}
function getTotalIncome() {
var history = JSON.parse(localStorage.history);
var totalIncome = 0;
for(var i = 0; i < history.length; i++) {
if(history[i][1] == 'inc')
totalIncome += parseInt(history[i][2]);
}
return totalIncome;
}
function keypadIsVisible() {
return document.getElementById('keypad').style.display == "block";
}
function getDate() {
return (new Date()).getDate();
}
function dayToString(day) {
if(day == getDate()) return "today";
else if(day == getDate() - 1) return "yesterday";
if(day == 11) return "11th";
else if(day == 12) return "11th";
else if(day == 13) return "11th";
var mod = day % 10;
switch(mod) {
case 0: return day + "th";
case 1: return day + "st";
case 2: return day + "nd";
case 3: return day + "rd";
case 4: return day + "th";
case 5: return day + "th";
case 6: return day + "th";
case 7: return day + "th";
case 8: return day + "th";
case 9: return day + "th";
}
}
function toggleCategory() {
var found = false;
var foundFirst = false;
var assigned = false;
var firstCategory = null;
for(var cat in categoryColors) {
if(!foundFirst) {
firstCategory = cat;
foundFirst = true;
}
if(found) {
category = cat;
assigned = true;
break;
}
else if(cat === category)
found = true;
}
if(!assigned)
category = firstCategory;
update();
}
function toggleKeypad() {
var keypad = document.getElementById('keypad');
var history = document.getElementById('history');
var reset = document.getElementById('reset');
if(keypad.style.display == "") {
keypad.style.display = "none";
history.style.display = "block";
reset.style.display = "block";
}
else {
keypad.style.display = "";
history.style.display = "none";
reset.style.display = "none";
}
update();
}
function showConfirm(event) {
event.stopPropagation();
document.getElementById('chart').style.display = "none";
document.getElementById('confirm').style.display = "block";
update();
}
function hideConfirm(event) {
event.stopPropagation();
document.getElementById("chart").style.display = "block";
document.getElementById("confirm").style.display = "none"
update();
}
</script>
</head>
<body>
<div id='budget'>
<div id='remaining'></div>
<div id='perday'></div>
<div class='category' id='category' ontouchstart='toggleCategory();'></div>
<div class='amount' id='amount' ontouchstart='enter();'></div>
<div id='chart' ontouchstart='showConfirm(event)'></div>
<div id='keypad'>
<!-- The non-breaking spaces are here because the iPhone thinks these consecutive digits are a phone number! -->
<span class='key' id='key1' ontouchstart='appendDigit(1);'> 1 </span>
<span class='key' id='key2' ontouchstart='appendDigit(2);'> 2 </span>
<span class='key' id='key3' ontouchstart='appendDigit(3);'> 3 </span>
<span class='key' id='key4' ontouchstart='appendDigit(4);'> 4 </span>
<span class='key' id='key5' ontouchstart='appendDigit(5);'> 5 </span>
<span class='key' id='key6' ontouchstart='appendDigit(6);'> 6 </span>
<span class='key' id='key7' ontouchstart='appendDigit(7);'> 7 </span>
<span class='key' id='key8' ontouchstart='appendDigit(8);'> 8 </span>
<span class='key' id='key9' ontouchstart='appendDigit(9);'> 9 </span>
<span class='key' id='keysign' ontouchstart='toggleSign();'>+</span>
<span class='key' id='key0' ontouchstart='appendDigit(0);'> 0 </span>
<span class='key' id='keydelete' ontouchstart='deleteLastDigit();'>del</span>
</div>
</div>
<div id='confirm'>
<div class='button bad' ontouchstart='hideConfirm(event);'>keep</div>
<div class='button' ontouchstart='undo();hideConfirm(event);'>undo</div>
<div class='button good' ontouchstart='reset(); hideConfirm(event);'>reset</div>
</div>
</body>