function codeMatches() {
	var match = $('#code').val().match(/[0-9]{3}-?[0-9]{3}/g)
	return match != null && match.length == 1 && match[0] == $('#code').val();
}

function numberMatches() {
	var country_code = $('#countrycode').val().replace(/\D/g, '');
	return $('#number').val().replace(/\D/g, '').length > 5 && country_code.length > 0 && country_code.length < 4;
}

$('#code').on('change', function() {
	if (!codeMatches())
		$('#code').attr('style', 'background-color:#ff6666;');
	else
		$('#code').attr('style', '');
});

$('#number').on('change', function() {//TODO
	if (!numberMatches())
		$('#number').attr('style', 'background-color:#ff6666;');
	else
		$('#number').attr('style', '');
});

$('#init-go').click(function() {
	if (codeMatches() && numberMatches()) {
		var signaling_key = getRandomBytes(32 + 20);
		var password = btoa(getRandomBytes(16));
		password = password.substring(0, password.length - 2);
		var number = "+" + $('#countrycode').val().replace(/\D/g, '') + $('#number').val().replace(/\D/g, '');

		$('#init-setup').hide();
		$('#verify1done').html('');
		$('#verify2done').html('');
		$('#verify3done').html('');
		$('#verify').show();

		doAjax({call: 'devices', httpType:  'PUT', urlParameters: '/' + $('#code').val(), user: number, password: password,
			jsonData: {signalingKey: btoa(getString(signaling_key)), supportsSms: false, fetchesMessages: true},
			success_callback: function(response) {
				var number_id = number + "." + response;
				storage.putEncrypted("password", password);
				storage.putEncrypted('signaling_key', signaling_key);
				storage.putUnencrypted("number_id", number_id);
				$('#verify1done').html('done');

				getKeysForNumber(number, function(identityKey) {
					subscribeToPush(function(message) {
						//TODO receive spuhared identity key
						$('#verify2done').html('done');
						var keys = crypto.generateKeys();
						$('#verify3done').html('done');
						doAjax({call: 'keys', httpType: 'PUT', do_auth: true, jsonData: keys,
							success_callback: function(response) {
								$('#complete-number').html(number);
								$('#verify').hide();
								$('#setup-complete').show();
								registrationDone();
							}, error_callback: function(code) {
								alert(code); //TODO
							}
						});
					});
					requestIdentityPrivKeyFromMasterDevice(number);
				}, function(error_msg) {
					alert(error_msg); //TODO
				});
			}, error_callback: function(code) {
				var error;
				switch(code) {
				case 403:
					error = "Invalid code, please try again.";
					break;
				case -1:
					error = "Error connecting to server, please check your network connection.";
					break;
				default:
					error = "Unknown error, please try again later.";
					console.log("Got error code " + code);
				}
				alert(error); //TODO
			}
		});
	}
});

if (!isRegistrationDone()) {
	$('#init-setup').show();
} else {
	$('#complete-number').html(storage.getUnencrypted("number_id").split(".")[0]);
	$('#setup-complete').show();
}