using AutoMapper.Execution;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Xunit;

namespace HengshanPaymentTerminal.Test
{
    public class CalculatorTest
    {
        

        [Fact]
        public void crc16()
        {
            byte[] bytes = { 0x00, 0x00, 0x01, 0x00, 0x01, 0x30};
            ushort value = HengshanCRC16.ComputeChecksum(bytes);
            byte[] bytes1 = HengshanCRC16.ComputeChecksumToBytes(bytes);
            Console.WriteLine($"CRC TEST RESULT:{value},hex:{BitConverter.ToString(bytes1).Replace("-"," ")}");
        }

        [Fact]
        public void testByte2Int()
        {
            int int1 = Bcd2Int(0x00, 0x00 );
            int int2 = Bcd2Int(0x00, 0x01 );
            int int3 = Bcd2Int(0x00, 0x09 );
            int int4 = Bcd2Int(0x00, 0x10 );
            int int5 = Bcd2Int(0x01, 0x10 );
            int int6 = Bcd2Int(0x09, 0x10 );
            int int7 = Bcd2Int(0x10, 0x10 );
            int int8 = Bcd2Int(0x99, 0x99 );
            Console.WriteLine();
        }

        public int Bcd2Int(byte byte1, byte byte2)
        {
            // 提取第一个字节的高四位和低四位  
            int digit1 = (byte1 >> 4) & 0x0F; // 高四位  
            int digit2 = byte1 & 0x0F;        // 低四位  

            // 提取第二个字节的高四位和低四位  
            int digit3 = (byte2 >> 4) & 0x0F; // 高四位  
            int digit4 = byte2 & 0x0F;        // 低四位  

            // 组合成一个整数  
            int result = digit1 * 1000 + digit2 * 100 + digit3 * 10 + digit4;

            return result;
        }

        [Fact]
        public void testInt2Bytes()
        {
            byte[] byte1 = Int2Bytes(0);
            byte[] byte2 = Int2Bytes(01);
            byte[] byte3 = Int2Bytes(99);
            byte[] byte4 = Int2Bytes(100);
            byte[] byte5 = Int2Bytes(9999);
            Console.WriteLine();
        }
        
        public byte[] Int2Bytes(int number)
        {
            // 提取千位、百位、十位和个位  
            int thousands = number / 1000;
            int hundreds = (number / 100) % 10;
            int tens = (number / 10) % 10;
            int units = number % 10;

            // 将千位和百位组合成一个字节（千位在高四位，百位在低四位）  
            byte firstByte = (byte)((thousands * 16) + hundreds); // 乘以16相当于左移4位  

            // 将十位和个位组合成一个字节（十位在高四位，个位在低四位）  
            byte secondByte = (byte)((tens * 16) + units);

            // 返回结果数组  
            return new byte[] { firstByte, secondByte };
        }

        [Fact]
        private void stringFromate()
        {
            byte[] timeBytes = { 0x20, 0x24, 0x12, 0x09, 0x14, 0x02, 0x11 };
            string time = 0x20.ToString("X2");
            Console.WriteLine(time);
        }

        [Fact]
        private void bytes2DateTime()
        {
            string formate = "yyyyMMddHHmmss";
            string timeStr = "20241209141011";
            DateTime parsedDateTime;

            bool success = DateTime.TryParseExact(timeStr, formate, null, System.Globalization.DateTimeStyles.None, out parsedDateTime);
            Console.WriteLine(parsedDateTime);
        }

        [Fact]
        private void testNumber2Bytes()
        {
            byte[] bytes = HengshanPayTermHandler.NumberToByteArrayWithPadding(123123, 5);
            string result = BitConverter.ToString(bytes).Replace("-", "");
            Console.WriteLine(result);
        }

        [Fact]
        private void testFormatDecimal()
        {
            byte[] bytes1 = HengshanPayTermHandler.FormatDecimal(new decimal(12.1));
            string result1 = BitConverter.ToString(bytes1).Replace("-", "");
            Console.WriteLine(result1);

            byte[] bytes2 = HengshanPayTermHandler.FormatDecimal(new decimal(12.10));
            string result2 = BitConverter.ToString(bytes2).Replace("-", "");
            Console.WriteLine(result2);

            byte[] bytes3 = HengshanPayTermHandler.FormatDecimal(new decimal(12.54));
            string result3 = BitConverter.ToString(bytes3).Replace("-", "");
            Console.WriteLine(result3);

           
        }

        [Fact]
        private void testConverDateTimeToBytes()
        {
            DateTime dateTime = DateTime.Now;
            byte[] bytes = HengshanPayTermHandler.ConvertDateTimeToByteArray(dateTime);
            string result = BitConverter.ToString(bytes).Replace("-", " ");
            Console.WriteLine(result);
        }
    }
}