using Edge.Core.Parser.BinaryParser.Attributes;
using Edge.Core.Parser.BinaryParser.MessageEntity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HengShan_Pump_TQC_IFSF.MessageEntity
{
    public enum MessageType
    {
        IFSF_MESSAGE_TYPE_READ = 0x00,
        IFSF_MESSAGE_TYPE_ANSWER = 0x20,
        IFSF_MESSAGE_TYPE_WRITE = 0x40,
        /// <summary>
        /// message type is an event, and need Ack.
        /// </summary>
        IFSF_MESSAGE_TYPE_UNSOLICITED_ACK = 0x60,
        IFSF_MESSAGE_TYPE_UNSOLICITED_WITHOUT_ACK = 0x80,
        IFSF_MESSAGE_TYPE_ACK = 0xE0
    }

    public enum MessageCode
    {
        IFSF_MESSAGE_CODE_APPLICATION = 0,
        IFSF_MESSAGE_CODE_HEARTBEAT = 1,
        IFSF_MESSAGE_CODE_COMMUNICATION = 2
    }

    public enum DatabaseAddress
    {
        IFSF_DB_ADDRESS_COMMUNICATION = 0x00,
        IFSF_DB_ADDRESS_CALCULATOR = 0x01,
        IFSF_DB_ADDRESS_FP_ID = (0x20 + 1),
        IFSF_DB_ADDRESS_LN_ID = 0x10,
        IFSF_DB_ADDRESS_PR_ID = 0x40,
        IFSF_DB_ADDRESS_PR_DAT = 0x61,
        IFSF_DB_ADDRESS_TR_DAT = 0x21,
        IFSF_DB_ADDRESS_ERROR_DAT = 0x41,
    }




    public abstract class IfsfMessageBase : MessageTemplateBase
    {
        //private byte messageToken;
        //private MessageType messageType;
        public IfsfMessageBase() { }

        [Format(1, EncodingType.BIN, -9990)]
        [Range(0, 255, "Originator subnet must range in 0 to 255, but actual is: {0}")]
        public byte OriginatorSubnet { get; set; }

        [Format(1, EncodingType.BIN, -9980)]
        [Range(0, 127, "Originator node must range in 0 to 127, but actual is: {0}")]
        public byte OriginatorNode { get; set; }

        [Format(1, EncodingType.BIN, -9970)]
        public MessageCode MessageCode { get; set; }

    }

    public class IfsfMessage : IfsfMessageBase
    {
        public IfsfMessage() { }
        public IfsfMessage(byte msgToken, MessageType msgType)
        {
            this.MessageToken = msgToken;
            this.MessageType = msgType;
        }

        [Format(1, EncodingType.BIN, -9999)]
        [Range(0, 255, "Recipient subnet must range in 1 to 255")]
        public byte RecipientSubnet { get; set; }

        [Format(1, EncodingType.BIN, -9995)]
        [Range(0, 127, "Recipient node must range in 1 to 127, but now is {0}")]
        public byte RecipientNode { get; set; }

        //[Format(1, EncodingType.BIN, -9960)]
        //public byte BlockNumber => 0x80;

        /// <summary>
        /// 000xxxxx (bit map)
        ///     000 indicates the message type is READ 
        ///     xxxxx is the token created by the originator of the message 
        /// 010xxxxx
        ///     010 indicates message type is WRITE
        ///     xxxxx is the token
        /// 111xxxxx
        ///     111 indicates type ACKNOWLEDGE 
        ///     xxxxx is the token
        /// </summary>
        [Format(1, EncodingType.BIN, -9950)]
        public byte RawMessageTokenAndStatus { get; protected set; }
        public byte MessageToken
        {
            get { return (byte)(this.RawMessageTokenAndStatus & 0x1F); }
            set
            {
                if (value > 0x1F) throw new ArgumentOutOfRangeException("message Token max value is 0x1F");
                //E0 = 1110 0000
                this.RawMessageTokenAndStatus = (byte)((this.RawMessageTokenAndStatus & 0xE0) + value);
            }
        }

        public MessageType MessageType
        {
            get { return (MessageType)(this.RawMessageTokenAndStatus & 0xE0); }
            set
            {
                //1F = 0001 1111
                this.RawMessageTokenAndStatus = (byte)((this.RawMessageTokenAndStatus & 0x1F) + ((byte)value));
            }
        }

        public byte[] DatabaseId
        {
            get
            {
                var dbLen = this.RawDatabaseData[0];
                return this.RawDatabaseData.Skip(1).Take(dbLen).ToArray();
            }
            set
            {
                var dbLen = value.Length;
                this.RawDatabaseData = new List<byte>();
                this.RawDatabaseData.Add((byte)dbLen);
                this.RawDatabaseData.AddRange(value);
            }
        }


        [Format(2, EncodingType.BIN, -9940)]
        public int MessageLength { get; protected set; }

        /// <summary>
        /// database address len + databaseId + [dataId + dataLen + dataElement]
        /// </summary>
        [EnumerableFormat("MessageLength", -9920)]
        public List<byte> RawDatabaseData { get; set; }

        public override string ToLogString()
        {
            return this.GetType().Name + "  " + base.ToLogString() + "        MsgType: " + this.MessageType + ", MsgToken: " + this.MessageToken;
        }
    }
}