function initPayPalButton() {
var description = document.querySelector('#smart-button-container #description');
var amount = document.querySelector('#smart-button-container #amount');
var descriptionError = document.querySelector('#smart-button-container #descriptionError');
var priceError = document.querySelector('#smart-button-container #priceLabelError');
var invoiceid = document.querySelector('#smart-button-container #invoiceid');
var invoiceidError = document.querySelector('#smart-button-container #invoiceidError');
var invoiceidDiv = document.querySelector('#smart-button-container #invoiceidDiv');
var elArr = [description, amount];
if (invoiceidDiv.firstChild.innerHTML.length > 1) {
invoiceidDiv.style.display = "block";
}
var purchase_units = [];
purchase_units[0] = {};
purchase_units[0].amount = {};
function validate(event) {
return event.value.length > 0;
}
paypal.Buttons({
style: {
color: 'gold',
shape: 'rect',
label: 'pay',
layout: 'vertical',
},
onInit: function (data, actions) {
actions.disable();
if(invoiceidDiv.style.display === "block") {
elArr.push(invoiceid);
}
elArr.forEach(function (item) {
item.addEventListener('keyup', function (event) {
var result = elArr.every(validate);
if (result) {
actions.enable();
} else {
actions.disable();
}
});
});
},
onClick: function () {
if (description.value.length < 1) {
descriptionError.style.visibility = "visible";
} else {
descriptionError.style.visibility = "hidden";
}
if (amount.value.length < 1) {
priceError.style.visibility = "visible";
} else {
priceError.style.visibility = "hidden";
}
if (invoiceid.value.length < 1 && invoiceidDiv.style.display === "block") {
invoiceidError.style.visibility = "visible";
} else {
invoiceidError.style.visibility = "hidden";
}
purchase_units[0].description = description.value;
purchase_units[0].amount.value = amount.value;
if(invoiceid.value !== '') {
purchase_units[0].invoice_id = invoiceid.value;
}
},
createOrder: function (data, actions) {
return actions.order.create({
purchase_units: purchase_units,
});
},
onApprove: function (data, actions) {
return actions.order.capture().then(function (orderData) {
// Full available details
console.log('Capture result', orderData, JSON.stringify(orderData, null, 2));
// Show a success message within this page, e.g.
const element = document.getElementById('paypal-button-container');
element.innerHTML = '';
element.innerHTML = '
Thank you for your payment!
';
// Or go to another URL: actions.redirect('thank_you.html');
});
},
onError: function (err) {
console.log(err);
}
}).render('#paypal-button-container');
}
initPayPalButton();
