#region Disclaimer / License

// Copyright (C) 2010, Jackie Ng
// http://trac.osgeo.org/mapguide/wiki/maestro, jumpinjackie@gmail.com
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//

#endregion Disclaimer / License

using Maestro.Shared.UI;
using OSGeo.MapGuide.MaestroAPI;
using OSGeo.MapGuide.ObjectModels;
using System;
using System.IO;
using System.Text;

namespace Maestro.Base.Services.DragDropHandlers
{
    internal class XmlResFileHandler : IDragDropHandler
    {
        public string HandlerAction
        {
            get { return Strings.XmlResHandlerAction; }
        }

        public bool HandleDrop(IServerConnection conn, string file, string folderId)
        {
            try
            {
                var wb = Workbench.Instance;
                var exp = wb.ActiveSiteExplorer;

                string xml = File.ReadAllText(file);
                int counter = 0;
                string name = Path.GetFileNameWithoutExtension(file);

                try
                {
                    //The easiest way to tell if this XML file is legit
                    var res = ObjectFactory.DeserializeXml(xml);
                    string resId = $"{folderId + name}.{res.ResourceType.ToString()}"; //NOXLATE
                    while (conn.ResourceService.ResourceExists(resId))
                    {
                        counter++;
                        resId = $"{folderId + name} ({counter}).{res.ResourceType.ToString()}"; //NOXLATE
                    }
                    res.ResourceID = resId;
                    conn.ResourceService.SaveResource(res);
                }
                catch //We may be working with an unknown resource type or schema version here so try blind before bailing
                {
                    string resType = Path.GetExtension(file);
                    string resId = $"{folderId + name}.{resType}"; //NOXLATE
                    while (conn.ResourceService.ResourceExists(resId))
                    {
                        counter++;
                        resId = $"{folderId + name} ({counter}).{resType}"; //NOXLATE
                    }
                    using (var ms = new MemoryStream(Encoding.UTF8.GetBytes(xml)))
                    {
                        conn.ResourceService.SetResourceXmlData(resId, ms);
                    }
                }
                return true;
            }
            catch (Exception ex)
            {
                ErrorDialog.Show(ex);
                return false;
            }
        }

        public override string ToString()
        {
            return Strings.XmlResHandlerAction;
        }

        public bool CanHandleFileExtension(string fileExtension)
        {
            return true;
        }
    }
}