/*
*	Plugin name : jquery.webservice
*	Author : Jimmy Hattori
*	Created on : 2009-06-11
*	Description : Enable to access .Net webservice.
*	Options:
*		As this plugin is written based on jQuery.ajax, options are exact same as jQuery.ajax except "data" option
*		and other few extra custom options. Followings are options that are specific to this plugin.
*
*       - requestType   string  (optional)
*           Four options of request type.            
*               * "soap1.1" (SOAP 1.1) - default
*               * "soap1.2" (SOAP 1.2)
*               * "httpget" (HTTP GET)
*               * "httppost" (HTTP POST)
*
*		- nameSpace	string	*only required if "soap1.1" or "soap1.2" were selected.
*			Namespace of webservice. In .Net webservice, default is "http://tempurl.org".
*
*		- methodName	string	*required
*			Name of the webmethod to access
*
*		- data	Object	(optional)
*			parameters to be sent to the server if the web method requires values to its arguments.
*			Needs to be written in JSON. (i.e. {memberID:111,firstName:"Foo",lastName:"Foo"})
*		
*		For the rest of options document, see http://docs.jquery.com/Ajax/jQuery.ajax#options.
*
*	Example:
*		$.webservice({
*			url: "Foo.asmx",
*			data: {fooID:1,fooText:"foo-eee!"},
*			dataType: "text",
*			nameSpace: "http://tempuri.org/",
*			methodName: "fooWebMethod",
*			success:function(data,textStatus){				
*				$("#divFood").html(data);
*			}
*		});		
*/

jQuery.webservice = function(options) {
    try {

        var settings = { requestType: "soap1.1",
        error: function(XMLHttpRequest, textStatus, errorThrown) {
        alert(XMLHttpRequest.responseText);
                throw XMLHttpRequest.responseText;
            }
        };
        $.extend(settings, options);

        var oBuffer = new Array();

        if (settings.requestType == "soap1.1" || settings.requestType == "soap1.2")
            settings.nameSpace += (settings.nameSpace.length - 1 == settings.nameSpace.lastIndexOf("/")) ? "" : "/";

        switch (settings.requestType) {
            case "soap1.2":
                settings.methodType = "POST";
                settings.contentType = "application/soap+xml";

                oBuffer.push("<soap12:Envelope ");
                oBuffer.push("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" ");
                oBuffer.push("xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" ");
                oBuffer.push("xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">");
                oBuffer.push("<soap12:Body>");
                oBuffer.push("<" + settings.methodName + " xmlns=\"" + settings.nameSpace + "\">");
                for (key in settings.data) {
                    if (key != "length" && typeof (settings.data[key].prototype) == "undefined")
                        oBuffer.push("<" + key + ">" + settings.data[key] + "</" + key + ">");
                }
                oBuffer.push("</" + settings.methodName + ">");
                oBuffer.push("</soap12:Body>");
                oBuffer.push("</soap12:Envelope>");
                settings.requestData = oBuffer.join("");

                break;
            case "httpget":
                settings.methodType = "GET";
                settings.contentType = "text/xml";

                for (key in settings.data) {
                    if (key != "length" && typeof (settings.data[key].prototype) == "undefined")
                        oBuffer.push(key + "=" + settings.data[key]);
                }

                settings.url += ("/" + settings.methodName + "?" + oBuffer.join("&"));
                settings.requestData = "";

                break;
            case "httppost":
                settings.methodType = "POST";
                settings.contentType = "application/x-www-form-urlencoded";

                for (key in settings.data) {
                    if (key != "length" && typeof (settings.data[key].prototype) == "undefined")
                        oBuffer.push(key + "=" + settings.data[key]);
                }

                settings.url += ("/" + settings.methodName);
                settings.requestData = oBuffer.join("&");

                break;
            default:
                settings.requestType = "soap1.1";
                settings.methodType = "POST";
                settings.contentType = "text/xml";

                oBuffer.push("<soap:Envelope ");
                oBuffer.push("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" ");
                oBuffer.push("xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" ");
                oBuffer.push("xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">");
                oBuffer.push("<soap:Body>");
                oBuffer.push("<" + settings.methodName + " xmlns=\"" + settings.nameSpace + "\">");
                for (key in settings.data) {
                    if (key != "length" && typeof (settings.data[key].prototype) == "undefined")
                        oBuffer.push("<" + key + ">" + settings.data[key] + "</" + key + ">");
                }
                oBuffer.push("</" + settings.methodName + ">");
                oBuffer.push("</soap:Body>");
                oBuffer.push("</soap:Envelope>");

                settings.requestData = oBuffer.join("");

                break;
        }


        $.ajax({ type: settings.methodType,
            cache: false,
            url: settings.url,
            data: settings.requestData,
            contentType: settings.contentType,           
            dataType: settings.dataType,
            success: settings.success,
            error: settings.error,
            beforeSend: function(XMLHttpRequest) {
                if (settings.requestType == "soap1.1" || settings.requestType == "soap1.2")
                    XMLHttpRequest.setRequestHeader("SOAPAction", settings.nameSpace + settings.methodName);
                XMLHttpRequest.setRequestHeader("Content-Length", settings.requestData.length);
                XMLHttpRequest.setRequestHeader("Connection", "close");
            }
        });
        alert(settings.requestData);
    }
    catch (err) {
        alert(err);
        alert("Error occurred in jquery.webservice.js.");
    }
};