/* 
* The MessageBoxHelper instance contains functionality for lazy instantiation of message boxes. 
* References: MessageBox.js. 
*/
var namespace = $.namespace("Interfleet.SE");

namespace.MessageBoxHelper = function () {
    function displayErrorMessage(errMsg) {
        var messageBox = new Interfleet.SE.MessageBox();
        var target = 'error-message-box';
        var btns = {};
        btns['Close'] = function () { $(this).dialog('close'); };
        messageBox.setup({
            title: 'An Error Occured',
            target: target,
            buttons: btns
        });
        messageBox.display({
            target: target,
            msg: errMsg
        });
    };

    function displayLoadingMessage() {
        var messageBox = new Interfleet.SE.MessageBox();
        var target = 'loading-message';
        messageBox.setup({
            title: 'Loading',
            target: target
        });
        messageBox.display({
            target: target,
            msg: 'ProcessingRequest'
        });
    };

    function hideLoadingMessage() {
        var messageBox = new Interfleet.SE.MessageBox();
        var target = 'loading-message';
        messageBox.hide({
            target: target
        });
    };

    function displayInfoMessage(info) {
        var messageBox = new Interfleet.SE.MessageBox();
        var target = 'info-message-box';
        var btns = {};
        btns['Close'] = function () { $(this).dialog('close'); };
        messageBox.setup({
            title: 'Labels.Information',
            target: target,
            buttons: btns
        });
        messageBox.display({
            target: target,
            msg: info
        });
    };

    function displayConfirmMessage(text, confirmHandler) {
        var messageBox = new Interfleet.SE.MessageBox();
        var target = 'confirm-message-div';
        var btns = {};
        btns['Yes'] = function () {
            if (typeof confirmHandler == 'function') {
                confirmHandler();
                $(this).dialog('close');
            }
        };
        btns['No'] = function () { $(this).dialog('close'); };
        messageBox.setup({
            title: 'Confirm',
            target: target, 
            buttons: btns
        });
        messageBox.display({
            target: target,
            msg: text
        });
    };

    return {
        displayErrorMessage: displayErrorMessage,
        displayLoadingMessage: displayLoadingMessage,
        hideLoadingMessage: hideLoadingMessage,
        displayInfoMessage: displayInfoMessage,
        displayConfirmMessage: displayConfirmMessage
    };
};