FCC/Applications/ShellChina_EPS_Project_CarPlatePay_EpsClient_App/MessageEntity/Incoming/MembershipInquiryResponse.cs

using Edge.Core.Parser.BinaryParser.Util;
using ShellChina_EPS_Project_CarPlatePay_EpsClient_App.MessageEntity.Base;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ShellChina_EPS_Project_CarPlatePay_EpsClient_App.MessageEntity.Incoming
{
    public class MembershipInquiryResponse : MembershipInquiryCommand
    {
        /// <summary>
        /// 消息长度	b2
        /// 消息类型 n4
        /// 主位图 b8
        /// </summary>
        private int ContentPrefixLength = 0;
        public MembershipInquiryResponse()
        {
            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
        }

        public override int P_3_处理码 { get { this.ParseFromContent(); return base.P_3_处理码; } }
        public override string P_12_交易流水号 { get { this.ParseFromContent(); return base.P_12_交易流水号; } }
        public override string P_24_会员ID { get { this.ParseFromContent(); return base.P_24_会员ID; } }
        public override string P_34_车牌号码 { get { this.ParseFromContent(); return base.P_34_车牌号码; } }
        /// <summary>
        /// “00000”表示交易成功，“00001”表示交易失败
        /// </summary>
        public override string P_39_交易响应码 { get { this.ParseFromContent(); return base.P_39_交易响应码; } }
        public override string P_40_错误信息 { get { this.ParseFromContent(); return base.P_40_错误信息; } }
        public override string P_41_终端编号 { get { this.ParseFromContent(); return base.P_41_终端编号; } }

        private void ParseFromContent()
        {
            this.P_3_处理码 = base.Content.Skip(ContentPrefixLength).Take(3).GetBCD();
            var dynamicOffset = 3;
            if (base.BitMap.Determine(12))
            {
                this.P_12_交易流水号 = Encoding.ASCII.GetString(base.Content.Skip(ContentPrefixLength + dynamicOffset).Take(9).ToArray());
                dynamicOffset += 9;
            }

            if (base.BitMap.Determine(24))
            {
                this.P_24_会员ID = Encoding.ASCII.GetString(base.Content.Skip(ContentPrefixLength + dynamicOffset).Take(20).ToArray());
                dynamicOffset += 20;
            }

            //field 34 is LLLVAR
            if (base.BitMap.Determine(34))
            {
                int len = base.Content.Skip(ContentPrefixLength + dynamicOffset).Take(2).GetBCD();
                dynamicOffset += 2;
                this.P_34_车牌号码 = Encoding.GetEncoding("GBK").GetString(base.Content.Skip(ContentPrefixLength + dynamicOffset).Take(len).ToArray());
                dynamicOffset += len;
            }

            this.P_39_交易响应码 = Encoding.ASCII.GetString(base.Content.Skip(ContentPrefixLength + dynamicOffset).Take(5).ToArray());
            dynamicOffset += 5;
            //field 40 is LLLVAR
            if (base.BitMap.Determine(40))
            {
                int len = base.Content.Skip(ContentPrefixLength + dynamicOffset).Take(2).GetBCD();
                dynamicOffset += 2;
                this.P_40_错误信息 = Encoding.GetEncoding("GBK").GetString(base.Content.Skip(ContentPrefixLength + dynamicOffset).Take(len).ToArray());
                dynamicOffset += len;
            }

            if (base.BitMap.Determine(41))
                this.P_41_终端编号 = Encoding.ASCII.GetString(base.Content.Skip(ContentPrefixLength + dynamicOffset).Take(12).ToArray());
        }
    }
}