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

namespace HybirdFrameworkServices.Charger.BatCharging.Service
{
    public static class BcdTimeConverter
    {
        public static long ConvertToBcdTime(DateTime dateTime)
        {
            // 将DateTime的各个部分分离出来  
            int year = dateTime.Year;
            int month = dateTime.Month;
            int day = dateTime.Day;
            int hour = dateTime.Hour;
            int minute = dateTime.Minute;
            int second = dateTime.Second;
            int millisecond = dateTime.Millisecond;

            // BCD编码转换函数  
            byte BcdEncode(int value)
            {
                return (byte)((value / 10 * 16) + (value % 10));
            }

            // 构造BCD时间  
            // 注意：这里假设毫秒只取前两位（十位和个位），忽略剩余的毫秒数  
            byte secondTens = BcdEncode(second / 10);
            byte secondUnits = BcdEncode(second % 10);
            byte minuteTens = BcdEncode(minute / 10);
            byte minuteUnits = BcdEncode(minute % 10);
            byte hourTens = BcdEncode(hour / 10);
            byte hourUnits = BcdEncode(hour % 10);
            byte dayTens = BcdEncode(day / 10);
            byte dayUnits = BcdEncode(day % 10);
            byte monthTens = BcdEncode(month / 10);
            byte monthUnits = BcdEncode(month % 10);
            byte yearTens = BcdEncode(year / 10);
            byte yearUnits = BcdEncode(year % 10);

            // 组合成一个8字节的数  
            long bcdTime = (long)secondTens << 56 | (long)secondUnits << 52 |
                           (long)minuteTens << 48 | (long)minuteUnits << 44 |
                           (long)hourTens << 40 | (long)hourUnits << 36 |
                           (long)dayTens << 32 | (long)dayUnits << 28 |
                           (long)monthTens << 24 | (long)monthUnits << 20 |
                           (long)yearTens << 16 | (long)yearUnits;

            return bcdTime;
        }
        public static byte[] ConvertToBcdTimeByte(DateTime dateTime)
        {
            // 将DateTime的各个部分分离出来  
            int year = dateTime.Year;
            int month = dateTime.Month;
            int day = dateTime.Day;
            int hour = dateTime.Hour;
            int minute = dateTime.Minute;
            int second = dateTime.Second;
            int millisecond = dateTime.Millisecond;

            byte[] bytes= new byte[8];
            bytes[0]= (byte)year;
            bytes[1]= (byte)month;
            bytes[2]= (byte)day;
            bytes[3]= (byte)hour;
            bytes[4]= (byte)minute;
            bytes[5]= (byte)second;
            bytes[6]= (byte)0;
            bytes[7]= (byte)0;
            return bytes;
        }
    }
}