using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using BatCharging.Model;

namespace BatCharging.Service
{
    /// <summary>
    /// 站控设置尖峰平谷时间段标识消息封装-3.4.9	
    /// </summary>
    public class MsgPeakTimeEncoder
    {
        /// <summary>
        /// 获取鉴权消息包字节列表
        /// </summary>
        /// <returns></returns>
        public byte[] GetMsgPeakTimePeriod(byte[] destAddr, SharpPeakTimeRangeIde timeRng)
        {
            byte[] result = null;

            APCI headAPCI = new APCI();
            headAPCI.StartChar = CmnChargerConst.APCI_START_CHAR;
            headAPCI.PackLen = 0;  //临时赋值为零,具体数值看下面的计算结果
            headAPCI.CtlArea = 0;  //控制域
            headAPCI.DestAddr = destAddr;//目的地址
            headAPCI.SrcAddr = 0;//源地址，本系统中，源地址统一为：00000000（即为0）

            byte randomNum = CmnChargerParam.GetByteRandomNum();

            ASDU headASDU = new ASDU();
            headASDU.FrameTypeNo = 45;   //帧类型号
            headASDU.MsgBodyCount = 1;   //信息体个数
            headASDU.TransReason = 3;    //传送原因
            headASDU.PublicAddr = 0;     //公共地址
            headASDU.MsgBodyAddr = new byte[] { 0, 0, 0 };  //信息体地址

            if(timeRng!=null)
            {
                timeRng.RecordType = 47;  //记录类型
                headASDU.MsgBodyContents = GetMsgContents(timeRng);          //信息体
                headAPCI.PackLen = Convert.ToUInt16(24 + headASDU.MsgBodyContents.Length);  //报文长度
            }
            List<byte> lstResult = MsgHeadApciEncoder.BuildBaseAPCI(headAPCI);
            lstResult.AddRange(MsgHeadAsduEncoder.BuildBaseASDU(headASDU).ToArray());
            result = lstResult.ToArray();
            return result;
        }

        /// <summary>
        /// 获取鉴权消息体字节数组
        /// </summary>
        /// <param name="auth"></param>
        /// <returns>鉴权消息体字节数组</returns>
        private byte[] GetMsgContents(SharpPeakTimeRangeIde timeRng)
        {
            byte[] results = null;
            if (timeRng != null)
            {
                List<byte> lstContent = new List<byte>();
                lstContent.Add(timeRng.RecordType);
                lstContent.Add(timeRng.NumTimePeriods);
                for(int i=0;i<timeRng.NumTimePeriods;i++)
                {
                    string strTimePeriod = "";
                    byte peakIden = 0;
                    switch (i)
                    {
                        case 0:
                            {
                                strTimePeriod = timeRng.StartTimePeriod1;
                                peakIden = timeRng.TimePeriodPeakIden1;
                                break;
                            }
                        case 1:
                            {
                                strTimePeriod = timeRng.StartTimePeriod2;
                                peakIden = timeRng.TimePeriodPeakIden2;
                                break;
                            }
                        case 2:
                            {
                                strTimePeriod = timeRng.StartTimePeriod3;
                                peakIden = timeRng.TimePeriodPeakIden3;
                                break;
                            }
                        case 3:
                            {
                                strTimePeriod = timeRng.StartTimePeriod4;
                                peakIden = timeRng.TimePeriodPeakIden4;
                                break;
                            }
                        case 4:
                            {
                                strTimePeriod = timeRng.StartTimePeriod5;
                                peakIden = timeRng.TimePeriodPeakIden5;
                                break;
                            }
                        case 5:
                            {
                                strTimePeriod = timeRng.StartTimePeriod6;
                                peakIden = timeRng.TimePeriodPeakIden6;
                                break;
                            }
                        case 6:
                            {
                                strTimePeriod = timeRng.StartTimePeriod7;
                                peakIden = timeRng.TimePeriodPeakIden7;
                                break;
                            }
                        case 7:
                            {
                                strTimePeriod = timeRng.StartTimePeriod8;
                                peakIden = timeRng.TimePeriodPeakIden8;
                                break;
                            }
                    }
                    if (strTimePeriod.Length > 0)
                    {
                        byte[] temps = GetTimePeriodBytes(strTimePeriod);
                        lstContent.Add(temps[0]);
                        lstContent.Add(temps[1]);
                        lstContent.Add(peakIden);
                    }
                }
                results = lstContent.ToArray();
            }
            return results;
        }

        /// <summary>
        /// 把时段的BCD码字符串("HH:mm")转换为两个字节的字节数组
        /// </summary>
        /// <param name=""></param>
        /// <returns></returns>
        private byte[] GetTimePeriodBytes(string strTimePeriod)
        {
            byte[] results = new byte[] { 0, 0 };
            if (!string.IsNullOrEmpty(strTimePeriod))
            {
                string[] strTemps = strTimePeriod.Split(":");
                if(strTemps!=null)
                {
                    if(strTemps.Length==2)
                    {
                        results[0] = ByteUtils.BCDToByte(Convert.ToByte(strTemps[0]));
                        results[1] = ByteUtils.BCDToByte(Convert.ToByte(strTemps[1]));
                    }
                }                
            }
            return results;
        }


    }
}