jQuery(document).ready(function() {
	// Handle activate form.
	jQuery("#submit-button").click(function(event){
		event.preventDefault();
		activate();
    });
	jQuery("#address").keypress(function(event){
		if (event.which == 13) {
			event.preventDefault();
			activate();
		}
    });
	jQuery("#prodkey").keypress(function(event){
		if (event.which == 13) {
			event.preventDefault();
			activate();
		}
    });
	jQuery("#pin").keypress(function(event){
		if (event.which == 13) {
			event.preventDefault();
			activate();
		}
    });
});

function activate() {
	var address = trim(jQuery("#address").val());
	if (!validateEmail(address)) {
		alert("Please enter a valid email address!");
		jQuery("#address").focus();
		return;
	}
	
	var prodkey = trim(jQuery("#prodkey").val());
	if (!validateProductKey(prodkey)) {
		alert("Please enter a valid Product Key.");
		jQuery("#prodkey").focus();
		return;
	}
	
	var pin = trim(jQuery("#pin").val());
	if (!validatePIN(pin)) {
		alert("Please enter a valid PIN.");
		jQuery("#pin").focus();
		return;
	}

	jQuery("#submit-button").attr('disabled', 'disabled');
	jQuery("#spinner-div").show();
	jQuery.post("http://www.cerience.com/wp-content/plugins/cerience/activate.php", { email: address, prodkey: prodkey, pin: pin }, function(response){
		jQuery("#spinner-div").hide();
		jQuery("#submit-button").removeAttr('disabled');
		response = trim(response);
		if (response == "success") {
			alert("Your activation code was successfully generated and has been emailed to you.");
		} else {
			alert("Unable to generate your activation code. Please check the accuracy of your email address and product key.");
		}
	});
}


function validateEmail(email) {
	if (email == "")
		return false;
	return ((email.indexOf(".") > 0) && (email.indexOf("@") > 0));
}

function validatePIN(pin) {
	regEx = /^[0-9a-fA-F]{8}$/;
	return pin.match(regEx);
}

function validateProductKey(prodKey) {
	regEx = /^[0-9]{10}$/;
	return prodKey.match(regEx);
}

function trim(str) {
	return str.replace(/^\s+|\s+$/g,"");
}