// Init kinda namespace object
var VE = { // Vesta Events object
    core: {}, // core functions
    callbacks: { // events callback functions
        click: {},
        mouseover: {},
        mouseout: {},
        keypress: {}
    },
    helpers: {}, // simple handy methods
    tmp: {}
};

/*
 * Main method that invokes further event processing
 * @param root is root HTML DOM element that. Pass HTML DOM Element or css selector
 * @param event_type (eg: click, mouseover etc..)
 */
VE.core.register = function(root, event_type) {
    var root = !root ? 'body' : root; // if elm is not passed just bind events to body DOM Element
    var event_type = !event_type ? 'click' : event_type; // set event type to "click" by default
    $(root).bind(event_type, function(evt) {
        var elm = $(evt.target);
        VE.core.dispatch(evt, elm, event_type); // dispatch captured event
    });
}

/*
 * Dispatch event that was previously registered
 * @param evt related event object
 * @param elm that was catched
 * @param event_type (eg: click, mouseover etc..)
 */
VE.core.dispatch = function(evt, elm, event_type) {
    if ('undefined' == typeof VE.callbacks[event_type]) {
        return VE.helpers.warn('There is no corresponding object that should contain event callbacks for "'+event_type+'" event type');
    }
    // get class of element
    var classes = $(elm).attr('class');
    // if no classes are attached, then just stop any further processings
    if (!classes) {
        return; // no classes assigned
    }
    // split the classes and check if it related to function
    $(classes.split(/\s/)).each(function(i, key) {
        VE.callbacks[event_type][key] && VE.callbacks[event_type][key](evt, elm);
    });
}

//
//  CALLBACKS
//



/*
 * Suspend action
 */
VE.callbacks.click.do_suspend = function(evt, elm) {
     var ref = elm.hasClass('data-controls') ? elm : elm.parents('.data-controls');
     var url = $('input[name="suspend_url"]', ref).val();
     var dialog_elm = ref.find('.confirmation-text-suspention');
     VE.helpers.createConfirmationDialog(dialog_elm, '', url);
}

/*
 * Unsuspend action
 */
VE.callbacks.click.do_unsuspend = function(evt, elm) {
     var ref = elm.hasClass('data-controls') ? elm : elm.parents('.data-controls');
     var url = $('input[name="unsuspend_url"]', ref).val();
     var dialog_elm = ref.find('.confirmation-text-suspention');
     VE.helpers.createConfirmationDialog(dialog_elm, '', url);
}

/*
 * Delete action
 */
VE.callbacks.click.do_delete = function(evt, elm) {
     var ref = elm.hasClass('data-controls') ? elm : elm.parents('.data-controls');
     var url = $('input[name="delete_url"]', ref).val();
     var dialog_elm = ref.find('.confirmation-text-delete');
     VE.helpers.createConfirmationDialog(dialog_elm, '', url);
}


/*
 * Create dialog box on the fly
 * @param elm Element which contains the dialog contents
 * @param dialog_title 
 * @param confirmed_location_url URL that will be redirected to if user hit "OK"
 * @param custom_config Custom configuration parameters passed to dialog initialization (optional)
 */
VE.helpers.createConfirmationDialog = function(elm, dialog_title, confirmed_location_url, custom_config) {
    var custom_config = !custom_config ? {} : custom_config;
    var config = {
        modal: true,
        autoOpen: true,
        width: 360,
        title: dialog_title,
        close: function() {
            $(this).dialog("destroy");
        },
        buttons: {
            "Ok": function(event, ui) {
                 location.href = confirmed_location_url;
            },
            "Cancel": function() {
                $(this).dialog("close");
                $(this).dialog("destroy");
            }
        }
    }
    config = $.extend(config, custom_config);
    var reference_copied = $(elm).clone();
    $(reference_copied).dialog(config);
}

/*
 * Simple debug output
 */
VE.helpers.warn = function(msg) {
    alert('WARNING: ' + msg);
}