/**
* jQuery dotNet Plugin - http://code.google.com/p/jquerydotnetplugin/
* Copyright (c) 2008 Walter Poch (http://wpoch.com.ar || http://wpoch.wordpress.com)
* Licensed under the GPL (http://www.gnu.org/copyleft/gpl.html) license.
*
* $Date: 2008-09-05
*
* $Date: 2009-03-13 by bigsan.chen@gmail.com
*    (^) remove evalJSON helper method, because jQuery will return json object itself.
*    (+) add serialize function detection. Now we can call service like this: $.callDotNet(urlMethod, jsonData, onSuccess);
*
* $Date: 2009-03-26 by bigsan.chen@gmail.com
*    (^) data parameter becomes a must, so the function signature is now function(url, data, onSuccess, onFailure, userContext).
*          and the signatures of onSuccess, onFailure becomes function(result, userContext, methodName)
*/
// Plugin definition
(function($) {
    // Plugin implementation
    $.callDotNet = function(url, data, options, onSuccess, onFailure, userContext) {
        // Helper method
        var serialize = function(object) {
            if (typeof (object) == "string" || object == null) return object;

            var f = (window["Sys"] && Sys.Serialization && Sys.Serialization.JavaScriptSerializer.serialize) || (window["JSON"] && JSON.stringify);
            if ($.isFunction(f)) {
                return f(object);
            }
            else {
                var msg = "Cannot find serializer function, try the following solution:\n\n";
                msg += " 1. Make sure there is a ScriptManger server control on your page, or\n";
                msg += " 2. get JSON javascript from http://www.json.org/js.html, or\n";
                msg += " 3. pass in manually serialized string type data parameter.\n";
                throw new Error(-1, msg);
            }
        }

        data = serialize(data);
        //var methodName = /[^/]+$/.exec(url)[0];
        var methodName = new RegExp("[^/]+$").exec(url)[0];

        //ADDED
        var asyncOption = true;
        if (options !== undefined) {
            if (options.async !== undefined && options.async == false) {
                asyncOption = false;
            }
        }

        return $.ajax({
            type: "POST",
            url: url,
            data: data,
            async: asyncOption,
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: function(msg) {
                //debugger;
                return onSuccess(msg.d, userContext, methodName);
            },
            error: function(error) {
                var f = onFailure || $.callDotNet.onError;
                f(error, userContext, methodName);
            }
        });
    }

    // Default implementation of the error function
    $.callDotNet.onError = function(error) {
        alert("There was an error processing your request.\n"
                    + "[" + error.status + "]"
                    + " [" + error.statusText + "]");
    }
})(jQuery);