var URL = '/xmlrpc';
var REQ_CountryOfDeparture = 'xmlrpc.flight.getCountryOfDeparture';
var REQ_CityOfDeparture    = 'xmlrpc.flight.getCityOfDeparture';
var REQ_AirportOfDeparture = 'xmlrpc.flight.getAirportOfDeparture';
var REQ_CountryOfArrival   = 'xmlrpc.flight.getCountryOfArrival'
var REQ_CityOfArrival      = 'xmlrpc.flight.getCityOfArrival';
var REQ_AirportOfArrival   = 'xmlrpc.flight.getAirportOfArrival';

/* Timetable requests */
var Timetable_getCitiesOfDeparture  = 'xmlrpc.flight.timetable.getCitiesOfDeparture';
var Timetable_getCitiesOfArrival    = 'xmlrpc.flight.timetable.getCitiesOfArrival';
var Timetable_searchFlights         = 'xmlrpc.flight.timetable.searchFlights';

/* Fare requests*/
var FareSearchCitiesOfDeparture = 'xmlrpc.flight.fare.searchCitiesOfDeparture';
var FareSearchCitiesOfArrival   = 'xmlrpc.flight.fare.searchCitiesOfArrival';
var FareSearchDatesOfDeparture  = 'xmlrpc.flight.fare.searchDatesOfDeparture';
var FareSearchFlights           = 'xmlrpc.flight.fare.searchFlights';
var FareSearchTimetable         = 'xmlrpc.flight.fare.searchTimetable';
var FareSearchCitiesOfDepartureOW = 'xmlrpc.flight.fare.searchCitiesOfDepartureOW';
var FareSearchCitiesOfArrivalOW   = 'xmlrpc.flight.fare.searchCitiesOfArrivalOW';
var FareSearchDatesOfDepartureOW  = 'xmlrpc.flight.fare.searchDatesOfDepartureOW';
var FareSearchCitiesOfDeparture1RT = 'xmlrpc.flight.fare.searchCitiesOfDeparture1RT';
var FareSearchCitiesOfArrival1RT   = 'xmlrpc.flight.fare.searchCitiesOfArrival1RT';
var FareSearchCitiesOfDeparture2RT = 'xmlrpc.flight.fare.searchCitiesOfDeparture2RT';
var FareSearchCitiesOfArrival2RT   = 'xmlrpc.flight.fare.searchCitiesOfArrival2RT';
var FareSearchDatesOfDeparture1RT  = 'xmlrpc.flight.fare.searchDatesOfDeparture1RT';
var FareSearchDatesOfDeparture2RT  = 'xmlrpc.flight.fare.searchDatesOfDeparture2RT';

var METHODS = [
    REQ_CountryOfDeparture,
    REQ_CityOfDeparture,
    REQ_AirportOfDeparture,
    REQ_CountryOfArrival,
    REQ_CityOfArrival,
    REQ_AirportOfArrival,
    Timetable_getCitiesOfDeparture,
    Timetable_getCitiesOfArrival,
    Timetable_searchFlights,
    FareSearchCitiesOfDeparture,
    FareSearchCitiesOfArrival,
    FareSearchDatesOfDeparture,
    FareSearchFlights,
    FareSearchTimetable,
    FareSearchCitiesOfDepartureOW,
    FareSearchCitiesOfArrivalOW,
    FareSearchDatesOfDepartureOW,
    FareSearchCitiesOfDeparture1RT,
    FareSearchCitiesOfArrival1RT,
    FareSearchCitiesOfDeparture2RT,
    FareSearchCitiesOfArrival2RT,
    FareSearchDatesOfDeparture1RT,
    FareSearchDatesOfDeparture2RT
];

var serviceX = new rpc.ServiceProxy(URL, {
    asynchronous: true,
    sanitize: false,
    methods: METHODS,
    protocol: 'XML-RPC'
});


/**
 * makeRequest(method, params, element, initialValue)
 *
 * запрос rpc метода с параметрами
 * результат запроса записывается в element
 * значение по умолчанию берется из initialValue
 *
 **/
function makeRequest(method, params, element, initialValue) {
    var methodObject = serviceX;
    var propChain = method.split(/\./);
    for(var j = 0; j+1 < propChain.length; j++){
        methodObject = methodObject[propChain[j]];
    }

    methodObject[propChain[propChain.length-1]]({
        params: [ params ],
        onSuccess:function(message){
            //alert('on Success');
            //updateList(element, message);
        },
        onComplete: function(response) {
            updateList(element, initialValue, response.result);
        },
        onException:function(e){
            alert("Unable to request because: " + e);
            return true;
        }
    });
}

/*
 * Изменение списка элементов
 * element - элемент над которым требуются модификации
 * result - массив с идентификаторами и названиями элемента
 */

function updateList(element, initialValue, result) {
    if (element && element[0]) {
        element[0].options.length = 0;

        $(result).each(function() {
            var option = document.createElement("option");
            option.text = $(this).attr('name');
            option.value = $(this).attr('id');

            element[0].options.add(option);
        });

        element.val(initialValue);
        element.attr('disabled', false);
        element.change();
    }
}