using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Documents;

namespace EPD.Data
{
    public class CytAsciiDefine
    {
        public static Dictionary<int, string> ErrorMap = new Dictionary<int, string>()
        {
            {0x0000, "OK"},

            {0x1000, "Format error"},
            {0x1001, "Parameter invalid"},
            {0x1002, "EPD not online"},
            {0x1003, "EPD is initializing"},
            {0x1004, "EPD config file has invalid setting"},
            {0x1005, "EPD calculation failed"},
            {0x1006, "EPD not remote"},

            { 0x1100, "Device has other error" },
            { 0x1101, "Device nvalid" },
            { 0x1102, "No Device" },
            { 0x1103, "Device close failed" },
            { 0x1104, "Device: order not implemented" },
            { 0x1105, "Device: a features not found" },
            { 0x1106, "Device: transfer Error" },
            { 0x1107, "Device: bad user buffer" },
            { 0x1108, "Device: out of bounds" },
            { 0x1109, "Device Saturated" },

            {0x2000, "EPD device error"},
        };

        public static Dictionary<int, string> StateMap = new Dictionary<int, string>()
        {
            {0, "OK"},
            {1, "SYNTAX ERROR: The number of zero limiters in the header is not correct."},
            {2, "SYNTAX ERROR: The number of zero limiters in the body is not correct."},
            {3, "SYNTAX ERROR: The numbers of items in the body do not match the header."},
            {4, "SYNTAX ERROR: Correct value is required."},
            {5, "SYNTAX ERROR: Recognizable text character is required"},
            {6, "MESSAGE ERROR: The numbers of items in the body do not conform to specifications."},
            {7, "HEADER ERROR: Numerical value is beyond the defined range."},
            {8, "HEADER ERROR: The text is not of defined size."},
            {9, "BODY ERROR: Numerical value is beyond the deined range."},
            {10, "BODY ERROR: The tetx is not of defined size."},
            {11, "Sensor ID does not match the current sensor setting."},
            {12, "WatchDog Code: The remote control system is not ready."},
            {13, "WatchDog Code: The sensor subsystem is not ready"},
            {14, "WatchDog Code: The cluster control subsystem is not ready."},
            {15, "WatchDog Code: The available hard disk capacity has reached its upper limit."},
            {16, "WatchDog Code: Mismatch between step names occurred."},
            {17, "Step name is missing."},
            {18, "Required action is beyond the defined range."},
            {19, "Warning is raised in the sensor subsystem."},
        };
    }

    public enum CytAsciiEvent
    {
        Event_Message = 0x01,

        Event_SystemError = 0x02,

        Event_StepStart = 0x03,

        Event_StepDelay = 0x04,

        Event_StepNormalize = 0x05,

        Event_StepSatisfied = 0x06,

        Event_StepTrigger = 0x07,

        Event_StepStop = 0x08,

        Event_TrendData = 0x10,
    }

    public enum CytAsciiCommand
    {
        Reset = 0x00,

        RecipeStart = 0x01,
        RecipeStop = 0x02,

        Complete = 0x03,

        Start = 0x04,
        Stop = 0x05,

        SetWaferInfo = 0x06,

        QueryCfgList = 0x07,

        QueryState = 0x08,

        QueryVer = 0x09,

        Event = 0x0A,

        Connect = 0x10,
        Disconnect = 0x11,

        HeartBeat = 0x20,

        QueryData = 0x30,

        QueryRunStatus = 0x31,

        SetRunStatus = 0x32,

        QueryOperateMode = 0x33,

        SetOperateMode = 0x34,
    }

    public class CytAsciiData
    {
        public int MessageID { get; set; }
        public int CommandID { get; set; }
        public string SenderID { get; set; }
        public string ReceiveID { get; set; }
        public List<string> Params { get; set; }

        public CytAsciiData(int messageID, int commandID, string senderID, string receiveID)
        {
            MessageID = messageID;
            CommandID = commandID;
            SenderID = senderID;
            ReceiveID = receiveID;
            Params = new List<string>();
        }

        private List<string> ToList()
        {
            var lst = new List<string> {MessageID.ToString(), CommandID.ToString(), SenderID, ReceiveID, Params.Count.ToString() };
            lst.AddRange(Params);
            return lst;
        }

        public byte[] ToBytes()
        {
            var lst = ToList();

            var length = 2;
            foreach (var item in lst)
                length += item.Length + 1;

            var pos = 0;
            var bytes = new byte[length];
            foreach (var item in lst)
            {
                Buffer.BlockCopy(Encoding.UTF8.GetBytes(item), 0, bytes, pos, item.Length);
                pos += item.Length + 1;
            }
            bytes[pos] = 0x0D;
            bytes[pos + 1] = 0x0A;

            return bytes;
        }

        public static List<string> ToList(byte[] bytes, int index, ref int len)
        {
            var lst = new List<string>();
            var startIndex = index;

            for (int i = index; i < index + len - 1; i++)
            {
                if (bytes[i] == 0)
                {
                    lst.Add(Encoding.UTF8.GetString(bytes, startIndex, i - startIndex));
                    startIndex = i + 1;
                }
                else if (bytes[i] == 0x0D && bytes[i + 1] == 0x0A)
                {
                    len = i - index + 2;
                    return lst;
                }
            }
            len = -1;
            return lst;
        }
    }

    public struct CytAsciiResponseHeader
    {
        public static readonly int Size = Marshal.SizeOf(typeof(ResponseHeader));

        [MarshalAs(UnmanagedType.U4, SizeConst = 4)]
        public int token;
        [MarshalAs(UnmanagedType.U1, SizeConst = 1)]
        public byte channel;
        [MarshalAs(UnmanagedType.U1, SizeConst = 1)]
        public byte command;
        [MarshalAs(UnmanagedType.U4, SizeConst = 4)]
        public int errorcode;
        [MarshalAs(UnmanagedType.U4, SizeConst = 4)]
        public int length;
    }
}