/***************************************************************************
The Disc Image Chef
----------------------------------------------------------------------------
 
Filename       : PCEngine.cs
Version        : 1.0
Author(s)      : Natalia Portillo
 
Component      : Filesystem plugins

Revision       : $Revision$
Last change by : $Author$
Date           : $Date$
 
--[ Description ] ----------------------------------------------------------
 
Identifies PC-Engine CDs.
 
--[ License ] --------------------------------------------------------------
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as
    published by the Free Software Foundation, either version 3 of the
    License, or (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

----------------------------------------------------------------------------
Copyright (C) 2011-2014 Claunia.com
****************************************************************************/
//$Id$

using System;
using System.Text;
using DiscImageChef;
using System.Collections.Generic;

namespace DiscImageChef.Filesystems
{
    class PCEnginePlugin : Filesystem
    {
        public PCEnginePlugin()
        {
            Name = "PC Engine CD Plugin";
            PluginUUID = new Guid("e5ee6d7c-90fa-49bd-ac89-14ef750b8af3");
        }

        public PCEnginePlugin(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
        {
            Name = "PC Engine CD Plugin";
            PluginUUID = new Guid("e5ee6d7c-90fa-49bd-ac89-14ef750b8af3");
        }

        public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
        {
            if((2 + partitionStart) >= imagePlugin.GetSectors())
                return false;

            byte[] system_descriptor = new byte[23];
            byte[] sector = imagePlugin.ReadSector(1 + partitionStart);

            Array.Copy(sector, 0x20, system_descriptor, 0, 23);

            return Encoding.ASCII.GetString(system_descriptor) == "PC Engine CD-ROM SYSTEM";
        }

        public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
        {
            information = "";
            xmlFSType = new Schemas.FileSystemType();
            xmlFSType.Type = "PC Engine filesystem";
            xmlFSType.Clusters = (long)((partitionEnd - partitionStart + 1) / imagePlugin.GetSectorSize() * 2048);
            xmlFSType.ClusterSize = 2048;
        }

        public override Errno Mount()
        {
            return Errno.NotImplemented;
        }

        public override Errno Mount(bool debug)
        {
            return Errno.NotImplemented;
        }

        public override Errno Unmount()
        {
            return Errno.NotImplemented;
        }

        public override Errno MapBlock(string path, long fileBlock, ref long deviceBlock)
        {
            return Errno.NotImplemented;
        }

        public override Errno GetAttributes(string path, ref FileAttributes attributes)
        {
            return Errno.NotImplemented;
        }

        public override Errno ListXAttr(string path, ref List<string> xattrs)
        {
            return Errno.NotImplemented;
        }

        public override Errno GetXattr(string path, string xattr, ref byte[] buf)
        {
            return Errno.NotImplemented;
        }

        public override Errno Read(string path, long offset, long size, ref byte[] buf)
        {
            return Errno.NotImplemented;
        }

        public override Errno ReadDir(string path, ref List<string> contents)
        {
            return Errno.NotImplemented;
        }

        public override Errno StatFs(ref FileSystemInfo stat)
        {
            return Errno.NotImplemented;
        }

        public override Errno Stat(string path, ref FileEntryInfo stat)
        {
            return Errno.NotImplemented;
        }

        public override Errno ReadLink(string path, ref string dest)
        {
            return Errno.NotImplemented;
        }
    }
}