// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename       : CID.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Device structures decoders.
//
// --[ Description ] ----------------------------------------------------------
//
//     Decodes MultiMediaCard CID.
//
// --[ License ] --------------------------------------------------------------
//
//     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, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2019 Natalia Portillo
// ****************************************************************************/

using System;
using System.Diagnostics.CodeAnalysis;
using System.Text;

namespace DiscImageChef.Decoders.MMC
{
    [SuppressMessage("ReSharper", "InconsistentNaming")]
    [SuppressMessage("ReSharper", "MemberCanBeInternal")]
    [SuppressMessage("ReSharper", "MemberCanBePrivate.Global")]
    [SuppressMessage("ReSharper", "UnassignedField.Global")]
    public class CID
    {
        public byte   Manufacturer;
        public byte   DeviceType;
        public byte   ApplicationID;
        public string ProductName;
        public byte   ProductRevision;
        public uint   ProductSerialNumber;
        public byte   ManufacturingDate;
        public byte   CRC;
    }

    [SuppressMessage("ReSharper", "InconsistentNaming")]
    [SuppressMessage("ReSharper", "MemberCanBeInternal")]
    [SuppressMessage("ReSharper", "MemberCanBePrivate.Global")]
    public static partial class Decoders
    {
        public static CID DecodeCID(uint[] response)
        {
            if(response?.Length != 4) return null;

            byte[] data = new byte[16];

            byte[] tmp = BitConverter.GetBytes(response[0]);
            Array.Copy(tmp, 0, data, 0, 4);
            tmp = BitConverter.GetBytes(response[1]);
            Array.Copy(tmp, 0, data, 4, 4);
            tmp = BitConverter.GetBytes(response[2]);
            Array.Copy(tmp, 0, data, 8, 4);
            tmp = BitConverter.GetBytes(response[3]);
            Array.Copy(tmp, 0, data, 12, 4);

            return DecodeCID(data);
        }

        public static CID DecodeCID(byte[] response)
        {
            if(response?.Length != 16) return null;

            CID cid = new CID
            {
                Manufacturer        = response[0],
                DeviceType          = (byte)(response[1] & 0x03),
                ProductRevision     = response[9],
                ProductSerialNumber = BitConverter.ToUInt32(response, 10),
                ManufacturingDate   = response[14],
                CRC                 = (byte)((response[15] & 0xFE) >> 1)
            };
            byte[] tmp = new byte[6];
            Array.Copy(response, 3, tmp, 0, 6);
            cid.ProductName = StringHandlers.CToString(tmp);

            return cid;
        }

        public static string PrettifyCID(CID cid)
        {
            if(cid == null) return null;

            StringBuilder sb = new StringBuilder();

            sb.AppendLine("MultiMediaCard Device Identification Register:");
            sb.AppendFormat("\tManufacturer: {0}", VendorString.Prettify(cid.Manufacturer)).AppendLine();
            switch(cid.DeviceType)
            {
                case 0:
                    sb.AppendLine("\tRemovable device");
                    break;
                case 1:
                    sb.AppendLine("\tBGA device");
                    break;
                case 2:
                    sb.AppendLine("\tPOP device");
                    break;
            }

            sb.AppendFormat("\tApplication ID: {0}", cid.ApplicationID).AppendLine();
            sb.AppendFormat("\tProduct name: {0}", cid.ProductName).AppendLine();
            sb.AppendFormat("\tProduct revision: {0:X2}.{1:X2}", (cid.ProductRevision & 0xF0) >> 4,
                            cid.ProductRevision & 0x0F).AppendLine();
            sb.AppendFormat("\tProduct serial number: {0}", cid.ProductSerialNumber).AppendLine();
            string year = "";
            switch(cid.ManufacturingDate & 0x0F)
            {
                case 0:
                    year = "1997 or 2013";
                    break;
                case 1:
                    year = "1998 or 2014";
                    break;
                case 2:
                    year = "1999 or 2015";
                    break;
                case 3:
                    year = "2000 or 2016";
                    break;
                case 4:
                    year = "2001 or 2017";
                    break;
                case 5:
                    year = "2002 or 2018";
                    break;
                case 6:
                    year = "2003 or 2019";
                    break;
                case 7:
                    year = "2004 or 2020";
                    break;
                case 8:
                    year = "2005 or 2021";
                    break;
                case 9:
                    year = "2006 or 2022";
                    break;
                case 10:
                    year = "2007 or 2023";
                    break;
                case 11:
                    year = "2008 or 2024";
                    break;
                case 12:
                    year = "2009 or 2025";
                    break;
                case 13:
                    year = "2010";
                    break;
                case 14:
                    year = "2011";
                    break;
                case 15:
                    year = "2012";
                    break;
            }

            sb.AppendFormat("\tDevice manufactured month {0} of {1}", (cid.ManufacturingDate & 0xF0) >> 4, year)
              .AppendLine();
            sb.AppendFormat("\tCID CRC: 0x{0:X2}", cid.CRC).AppendLine();

            return sb.ToString();
        }

        public static string PrettifyCID(uint[] response) => PrettifyCID(DecodeCID(response));

        public static string PrettifyCID(byte[] response) => PrettifyCID(DecodeCID(response));
    }
}