jQuery.mvc = {};
jQuery.mvc.animation = 'fadeIn';
jQuery.mvc.animationSpeed = '';

jQuery.mvcJson = function(url, callback) {
    jQuery.mvc.request(url, null, "POST", true, null, callback);
};

jQuery.fn.mvcJsonForm = function(callback) {
    var t = jQuery(this);
    var url = t.attr('action');
    jQuery.mvc.request(url, null, "POST", true, t.serialize(), callback);
}

jQuery.fn.mvcAjaxForm = function(showResultIn, callback) {
    var t = jQuery(this);
    var url = t.attr('action');
    jQuery.mvc.request(url, showResultIn, "POST", false, t.serialize(), callback);
}

jQuery.mvc.request = function(url, showResultIn, type, json, data, callback) {
    if (typeof (jQuery.mvc.originalState) == 'undefined')
        jQuery.mvc.originalState = jQuery(document.body).html();

    if (jQuery.isFunction(data)) {
        callback = data;
        data = "";
    }

    if (!data)
        data = "";

    if (jQuery.isFunction(showResultIn)) {
        callback = showResultIn;
        showResultIn = null;
    }

    if (showResultIn) {
        showResultIn = jQuery(showResultIn);
    }

    return jQuery.ajax({
        type: type,
        url: url,
        data: data,
        success: function(resultObj) {
            jQuery.mvc.processRequest(resultObj, callback, false, showResultIn);
        },
        error: function(resultObj, status) {
            jQuery.mvc.processRequest(resultObj, null, true, showResultIn);
        },
        dataType: (json ? "json" : null),
        beforeSend: (!json ? null : function(xml) {
            xml.setRequestHeader("X-IsJson", "true");
        })
    });
};

jQuery.mvc.clearMessages = function() {
    jQuery('#errors').html('');
    jQuery('#messages').html('');
}

jQuery.fn.mvcAddMessage = function(msg) {
    var t = jQuery(this);
    if (t.html() == '')
        t.html('<ul></ul>');
    var ul = jQuery('ul', t);
    ul.append('<li>' + msg + '</li>');
}

jQuery.mvc.processRequest = function(resultObj, callback, isError, showResultIn) {
    jQuery.mvc.clearMessages()
    var msgContainer = jQuery('#messages');
    var errorContainer = jQuery('#errors');
    if ((typeof (resultObj) != 'undefined') &&
        jQuery.isFunction(resultObj.getResponseHeader) &&
        resultObj.getResponseHeader("Content-Type").indexOf("json") >= 0) {
        resultObj = eval("(" + resultObj.responseText + ")");
    }

    var result = true;
    var errorSet = false;
    

    if (result != false && typeof (resultObj) != 'undefined') {
        if (msgContainer && typeof (resultObj.Messages) != 'undefined') {
            jQuery(resultObj.Messages).each(function(t) {
                msgContainer.mvcAddMessage(this);
            });
        }
        if (errorContainer && typeof (resultObj.Errors) != 'undefined') {
            jQuery(resultObj.Errors).each(function(t) {
                errorContainer.mvcAddMessage(this);
            });
            errorSet = true;
        }
    }
    if (result && showResultIn) {
        var html = typeof (resultObj.responseText) == 'undefined' ?
            resultObj : resultObj.responseText;

        showResultIn = jQuery(showResultIn);
        var resId = showResultIn.attr('ID');
        showResultIn.replaceWith(html);
        showResultIn = jQuery('#' + resId);
        if (jQuery.mvc.animation)
            showResultIn.hide();

        var ajaxMsg = jQuery('#ajaxmessages');
        msgContainer.html(ajaxMsg.html());
        ajaxMsg.remove();

        var errorMsg = jQuery('#ajaxerrors');
        errorContainer.html(errorMsg.html());
        errorMsg.remove();
        errorSet = errorMsg.size() > 0;
        jQuery('a.ajaxlink', showResultIn).ajaxify();
        if (jQuery.mvc.animation)
            jQuery(showResultIn).animate({ opacity: "show" }, jQuery.mvc.animation, jQuery.mvc.animationSpeed);
    }

    if (jQuery.isFunction(callback))
        callback(resultObj);
    
    if (isError && !errorSet) {
       /* jQuery(document.body).html(resultObj.responseText); */
    }

    return result;
}
jQuery.mvc.initialize = function() {
    if (typeof (jQuery.mvc.originalState) != 'undefined')
        jQuery(document.body).html(jQuery.mvc.originalState);
    jQuery('a.ajaxlink').ajaxify();
    $("#loading").ajaxStart(function() {
        $(this).show();
    });
    $("#loading").ajaxStop(function() {
        $(this).hide();
    });
}
jQuery().ready(function() {
    jQuery.mvc.initialize();
})

jQuery.fn.ajaxify = function() {
    return this.each(function() {
        var link = jQuery(this);
        if (typeof link.attr('href') != 'undefined' && link.attr('href').substr(1, 1) != '#') {
            link.attr('href', '#' + link.attr('href'));
            link.history(function() {
                var target = link.attr('meta:ajaxtarget');
                var hash = link.attr('href').substr(0, 1)
                var url = link.attr('href');
                while (hash == '#') {
                    url = url.substr(1);
                    hash = url.substr(0, 1);
                }
                jQuery.mvc.request(url, target, "GET", false, 'fullpage=true');
            });
        }
    })
};
jQuery().ready(function() {
    jQuery.ajaxHistory.initialize(jQuery.mvc.initialize);
})