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logic.js
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logic.js
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$(document).ready(function() {
$('#date_sent_group').datetimepicker({
format : 'DD/MM/YYYY HH:mm'
});
$('#date_group_1').datetimepicker({
format : 'DD/MM/YYYY HH:mm'
});
var nbItems = 1;
fillWithSavedData();
});
var nbItems = 1;
function fillWithSavedData() {
if (localStorage.getItem('data') != null) {
var savedData = JSON.parse(localStorage.getItem('data'));
console.log('savedData:');
console.log(savedData);
// Filling every field except items
for ( var field in savedData) {
$('#'+field).val(savedData[field]);
}
// Adjusting number of item
var savedNbItems = savedData['items'].length;
var diffNbItems = savedNbItems - nbItems;
if (diffNbItems >= 0) {
for (var i = 0; i < diffNbItems; i++) {
addItem();
}
}
else {
for (var i = 0; i < diffNbItems; i++) {
removeItem();
}
}
// Filling item fields
for (var itemIndex = 0; itemIndex < savedNbItems; itemIndex++) {
var savedItem = savedData['items'][itemIndex];
var itemId = itemIndex + 1;
$('#amount_'+itemId).val(savedItem['amount']);
$('#date__'+itemId).val(savedItem['date']);
$('#description_'+itemId).val(savedItem['description']);
$('#units_'+itemId).val(savedItem['units']);
var savedContractor = savedItem['contractor'];
$('#contractor_'+itemId).val(savedContractor);
}
}
console.log('Filling form fields with saved data');
}
function addItem() {
nbItems++;
var item_template =
`<div id="item_${nbItems}">
<h3>Item ${nbItems}</h3>
<div class="form-group">
<label for="description_${nbItems}" class="control-label">Description</label>
<input type="text" class="form-control" placeholder="Description" name="description_${nbItems}" id="description_${nbItems}">
</div>
<div class="row">
<div class="form-group col-md-6">
<label for="date__${nbItems}" class="control-label">Date</label>
<div class='input-group date' id='date_group_${nbItems}'>
<input type='text' class="form-control" name="date__${nbItems}" id="date__${nbItems}" placeholder="Date"/>
<span class="input-group-addon">
<span class="glyphicon glyphicon-calendar"></span>
</span>
</div>
</div>
<div class="form-group col-md-6">
<label for="units_${nbItems}" class="control-label">Duration</label>
<input type="text" class="form-control" placeholder="Duration" name="units_${nbItems}" id="units_${nbItems}">
</div>
</div>
<div class="row">
<div class="form-group col-md-6">
<label for="contractor_${nbItems}" class="control-label">Contractor</label>
<input type="text" class="form-control" id="contractor_${nbItems}" name="contractor_${nbItems}" placeholder="Contractor Name">
</div>
<div class="form-group col-md-6">
<label for="amount_${nbItems}" class="control-label">Cost</label>
<input type="number" class="form-control" placeholder="Cost (£)" name="amount_${nbItems}" id="amount_${nbItems}">
</div>
</div>
</div>`;
$("#items").append(item_template);
$('.date').last().datetimepicker({
format : 'DD/MM/YYYY HH:mm'
});
$('#remove_button').show();
}
function removeItem() {
if (nbItems > 1) {
$('#items').children().last().remove();
nbItems--;
if(nbItems < 2) {
$('#remove_button').hide();
}
}
}
function generateInvoice() {
console.log('Generating invoice');
var pre_data = $('form').serializeArray();
var data = {};
var items = [];
var currentItemIndex = -1;
for (var i = 0; i < pre_data.length; i++) {
var name = pre_data[i]['name'];
var value = pre_data[i]['value'];
if (name.includes('description_')) { // new item
currentItemIndex++;
items[currentItemIndex] = {}; // new item object
items[currentItemIndex]['description'] = value;
} else if (name.includes('date__')) {
items[currentItemIndex]['date'] = value;
} else if (name.includes('contractor_')) {
items[currentItemIndex]['contractor'] = value;
} else if (name.includes('units_')) {
items[currentItemIndex]['units'] = value;
} else if (name.includes('amount_')) {
items[currentItemIndex]['amount'] = value;
} else {
data[name] = value;
}
}
data['items'] = items;
console.log('data: ');
console.log(data);
var net_amount = 0;
for (var i = 0; i < Object.keys(items).length; i++) {
net_amount += parseFloat(items[i]['amount']);
}
data['net_amount'] = (net_amount).toFixed(2);
data['tax_amount'] = (parseFloat(data['vat_rate']) / 100 * net_amount).toFixed(2);
data['gross_amount'] = (parseFloat(net_amount) + parseFloat(data['tax_amount'])).toFixed(2);
data['invoice_amount'] = data['gross_amount'];
localStorage.setItem("data", JSON.stringify(data));
if (window.location.href.indexOf('raw=true') === -1) {
document.body.innerHTML = Mustache.render(document.body.innerHTML, data);
}
fillWithSavedData();
}
function loadImage() { // called automatically when the user chooses a file
var imgs = document.querySelectorAll('img');
var file = document.querySelector('input[type=file]').files[0];
var reader = new FileReader();
reader.onloadend = function() {
imgs[0].src = reader.result;
imgs[1].src = reader.result;
}
if (file) {
reader.readAsDataURL(file); //reads the data as a URL
} else {
imgs.src = "";
}
}
function savePDF() {
location.reload();
generateInvoice();
var invoiceWindow = window.open('');
invoiceWindow.document.write("<link rel='stylesheet' href='css/pdf_styles.css'>");
invoiceWindow.document.write("<link rel='stylesheet' href='css/pdf_preview_styles.css'>");
invoiceWindow.document.write("<link rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css' crossorigin='anonymous'>");
invoiceWindow.document.write("<link rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap-theme.min.css' crossorigin='anonymous'>");
invoiceWindow.document.write($('#invoice').html());
}