// Copyright (c) 2012, Outercurve Foundation.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// - Redistributions of source code must  retain  the  above copyright notice, this
//   list of conditions and the following disclaimer.
//
// - Redistributions in binary form  must  reproduce the  above  copyright  notice,
//   this list of conditions  and  the  following  disclaimer in  the documentation
//   and/or other materials provided with the distribution.
//
// - Neither  the  name  of  the  Outercurve Foundation  nor   the   names  of  its
//   contributors may be used to endorse or  promote  products  derived  from  this
//   software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,  BUT  NOT  LIMITED TO, THE IMPLIED
// WARRANTIES  OF  MERCHANTABILITY   AND  FITNESS  FOR  A  PARTICULAR  PURPOSE  ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL,  SPECIAL,  EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO,  PROCUREMENT  OF  SUBSTITUTE  GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  HOWEVER  CAUSED AND ON
// ANY  THEORY  OF  LIABILITY,  WHETHER  IN  CONTRACT,  STRICT  LIABILITY,  OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING  IN  ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

namespace WebsitePanel.Providers.Web.Iis.Utility
{
    using System;
	using System.Collections.Generic;
	using Microsoft.Web.Administration;
	using System.Collections;

    internal static class ConfigurationUtility
    {
        public static bool ShouldPersist(string oldValue, string newValue)
        {
            if (String.IsNullOrEmpty(oldValue))
            {
                return !String.IsNullOrEmpty(newValue);
            }
            if (newValue == null)
            {
                return false;
            }
            return ((newValue.Length == 0) || !oldValue.Equals(newValue, StringComparison.Ordinal));
        }

        public static string GetQualifiedVirtualPath(string virtualPath)
        {
            if (!virtualPath.StartsWith("/"))
                return "/" + virtualPath;
            //
            return virtualPath;
        }

        public static string GetNonQualifiedVirtualPath(string virtualPath)
        {
            if (virtualPath == "/")
                return virtualPath;
            //
            if (virtualPath.StartsWith("/"))
                return virtualPath.Substring(1);
            //
            return virtualPath;
        }
    }
}