#region
/* -----------------------------------------------------------------------
 * <copyright file="Permission.cs" company="GRNet">
 * 
 * Copyright 2011-2012 GRNET S.A. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 *   1. Redistributions of source code must retain the above
 *      copyright notice, this list of conditions and the following
 *      disclaimer.
 *
 *   2. 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.
 *
 *
 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``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 GRNET S.A 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.
 *
 * The views and conclusions contained in the software and
 * documentation are those of the authors and should not be
 * interpreted as representing official policies, either expressed
 * or implied, of GRNET S.A.
 * </copyright>
 * -----------------------------------------------------------------------
 */
#endregion

using System;
using Caliburn.Micro;

namespace Pithos.Client.WPF
{
    public class Permission:PropertyChangedBase
    {
        private string _userName;
        public string UserName
        {
            get { return _userName; }
            set
            {
                _userName = value;
                NotifyOfPropertyChange(()=>UserName);
            }
        }

        private bool _read=true;
        public bool Read
        {
            get { return _read; }
            set
            {
                _read = value;                
                _write = !value;
                NotifyOfPropertyChange(() => Write);
                NotifyOfPropertyChange(() => Read);
                NotifyOfPropertyChange(() => Value);
            }
        }

        private bool _write;

        public bool Write
        {
            get { return _write; }
            set
            {
                _write = value;
                _read = !value;
                NotifyOfPropertyChange(()=>Write);
                NotifyOfPropertyChange(() => Read);
                NotifyOfPropertyChange(() => Value);
            }
        }

        public Permission(string userName, string permission)
        {
            UserName = userName;
            var trimmed = permission.Trim();
            Read = "read".Equals(trimmed,StringComparison.InvariantCultureIgnoreCase);
            Write = "write".Equals(trimmed, StringComparison.InvariantCultureIgnoreCase);
            //Value = permission;
        }

        
        public string Value
        {
            get
            {
                if (Write)
                    return "write";
                if (Read)
                    return "read";
                return null;
            }
            
        }

        public Permission()
        {
            
        }

        public Permission Clone()
        {
            return new Permission {UserName = UserName, Read = Read};
        }
    }
}