// Create the XHR object.
function ic_cors_request_create(method, url) {
  var xhr = new XMLHttpRequest();
  if ("withCredentials" in xhr) {
    // XHR for Chrome/Firefox/Opera/Safari.
    xhr.open(method, url, true);
  } else if (typeof XDomainRequest != "undefined") {
    // XDomainRequest for IE.
    xhr = new XDomainRequest();
    xhr.open(method, url);
  } else {
    // CORS not supported.
    xhr = null;
  }
  return xhr;
}

// Make the actual CORS request.
function ic_booktable_init() {
  // This is a sample server that supports CORS.
  var url = 'https://resngo.com/en/engine/booktable.php';
  var xhr = ic_cors_request_create('GET', url);
  if (!xhr) {
    alert('CORS not supported');
    return;
  }

  // Response handlers.
  xhr.onload = function() {
    var text = xhr.responseText;
    document.getElementById('booktable_div').innerHTML=text;
  };

  xhr.onerror = function() {
    alert('Hiba!');
  };
  xhr.send();
}

ic_booktable_init();

function ic_booktable_form_submit(){
  //adatok ellenorzese
  
  var ic_booktable_error='';

  function validateEmail(email) {
    var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(email);
  }

  var booktable_form = document.forms[0];

  var bookings_guest_name=document.getElementById('bookings_guest_name_input').value;
  var bookings_guest_email=document.getElementById('bookings_guest_email_input').value;
  var bookings_guest_phone=document.getElementById('bookings_guest_phone_input').value;
  var bookings_guests=document.getElementById('bookings_guests_select').value;
  var bookings_arrival_time=document.getElementById('bookings_arrival_time_select').value;
  var bookings_arrival_date=document.getElementById('bookings_arrival_date_select').value;
  //var bookings_restaurant_lang_code=document.getElementById('bookings_restaurant_lang_code').value;

  if(bookings_arrival_date==0)ic_booktable_error+=booktable_form.elements['bookings_error_arrival_date'].value+'\n';
  if(bookings_guests==0)ic_booktable_error+=booktable_form.elements['bookings_error_guests'].value+'\n';
  if(bookings_arrival_time==0)ic_booktable_error+=booktable_form.elements['bookings_error_arrival_time'].value+'\n';
  if(bookings_guest_name.length<3 || bookings_guest_name=='')ic_booktable_error+=booktable_form.elements['bookings_error_guest_name'].value+'\n';
  if(!validateEmail(bookings_guest_email))ic_booktable_error+=booktable_form.elements['bookings_error_guest_email'].value+'\n';
  if(bookings_guest_phone.length<7 || bookings_guest_phone=='')ic_booktable_error+=booktable_form.elements['bookings_error_guest_phone'].value+'\n';
  
  if(ic_booktable_error==''){ 
    var url = 'https://resngo.com/en/engine/booktable.php?bookings_guest_name='+bookings_guest_name+'&bookings_guest_email='+bookings_guest_email+'&bookings_guest_phone='+bookings_guest_phone+'&bookings_guests='+bookings_guests+'&bookings_arrival_time='+bookings_arrival_time+'&bookings_arrival_date='+bookings_arrival_date+'&step=2&bookings_restaurant_lang_code=';
    console.log(url);
    var xhr = ic_cors_request_create('GET', url);
    
    if (!xhr) {
      alert('CORS not supported');
      return;
    }

    xhr.onload = function() {
      var text = JSON.parse(xhr.responseText);
      document.getElementById('booktable_div').innerHTML=text.response;
    };
      xhr.onerror = function() {
      alert('Hiba!');
    };

    xhr.send();

  }else{
//hibajelzes
    alert(ic_booktable_error);
  }
}