Extensions

with (person) {
    console.log("Hello " + firstName + " "+ lastName);
}

var p = person;
console.log("Hello " + p.firstName + " "+ p.lastName);

function executeScript(scriptEvent) {
    var a = 1;
    var b = 2;
    // first function call
    var result = addAndIncrement(a, b);
    return result;
}

function increment(x) {
    return x++;
}

function addAndIncrement(a, b) {
    // second function call from a previous function call -> exception
    return increment(a + b);
}

function executeScript(scriptEvent) {
    var a = 1;
    var b = 2;
    // first function call
    var result = addAndIncrement(a, b);
    return result;
}

function increment(x) {
    return x++;
}

function addAndIncrement(a, b) {
    // no other function call -> OK
    return (a + b + 1);
}

/**
 * The script metadata object describes whether or not your extension should be invoked asynchronously, and which events it supports
 * @returns {{ async: boolean, events: string[] }}
 */
function getScriptMetadata() {
    return {
        id: 'myExtensionIdentifier', // optional: id and version will be used later as a mechanism for checking if the script has a newer version
        displayName: 'My Extension', //mandatory: the name displayed in the configuration page
        version: 0, // optional
        async: false,
        events: [
            //supported values:
            //'RESERVATION_CONFIRMED', //fired on reservation confirmation. No results expected.
            //'RESERVATION_EXPIRED', //fired when reservation(s) expired
            //'RESERVATION_CANCELLED', //fired when reservation(s) are cancelled
            //'TICKET_CANCELLED', //fired when ticket(s) (but not the entire reservation) are cancelled
            //'TICKET_ASSIGNED', //fired on ticket assignment. No results expected.
            //'TICKET_CHECKED_IN', //fired when a ticket has been checked in. No results expected.
            //'TICKET_REVERT_CHECKED_IN', //fired when a ticket has been reverted from the checked in status. No results expected.
            //'WAITING_QUEUE_SUBSCRIPTION', //fired on waiting queue subscription. No results expected.
            //'STUCK_RESERVATIONS', //fired when the system has detected stuck reservations. No results expected.
            //'OFFLINE_RESERVATIONS_WILL_EXPIRE', //fired when an offline reservation will expire. No results expected.
            //'EVENT_CREATED', //fired when an event has been created. Return boolean for synchronous variant, no results expected for the asynchronous one.
            //'EVENT_STATUS_CHANGE', //fired when an event status has changed (normally, from DRAFT to PUBLIC). Return boolean for synchronous variant, no results expected for the asynchronous one.
            'INVOICE_GENERATION' //, //fired on invoice generation. Returns the invoice model.
            //'TAX_ID_NUMBER_VALIDATION' //fired in case a TAX ID (VAT/GST) Number has to be formally validated
        ]
        //,
        //parameters: {fields: [{name:'name',description:'description',type:'TEXT',required:true}], configurationLevels: ['SYSTEM', 'ORGANIZATION', 'EVENT']} //parameters
    };
}

/**
 * Executes the extension.
 * @param scriptEvent
 * @returns Object
 */
function executeScript(scriptEvent) {
    console.log('hello from script with event:', scriptEvent);
    console.log('extension parameters are: ', extensionParameters);
    
    // you can log warning and errors too
    // console.warn('this is a warning related to ', executionKey);
    // console.error('uh oh, something happened');
    
    //this sample calls the https://csrng.net/ website and generates a random invoice number
    var randomNumber = simpleHttpClient.get('https://csrng.net/csrng/csrng.php?min=0&max=100').getJsonBody()[0].random;
    console.log('the invoice number will be:', randomNumber);
    return {
        invoiceNumber: randomNumber
    };
}