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

namespace ModbusDemo.ErrorCode
{
    public class ErrorCode
    {

        // 静态列表：存储所有错误码
        public static readonly List<ErrorCode> AllErrors = new List<ErrorCode>();

        // 错误码值
        public byte Code { get; }

        // 错误描述
        public string Description { get; }

        // 私有构造函数，只能通过静态方法创建错误码
        private ErrorCode(byte code, string description)
        {
            Code = code;
            Description = description;

            // 自动添加到错误码列表
            AllErrors.Add(this);
        }

        // 重写 ToString 方法
        public override string ToString() => $"Error 0x{Code:X2}: {Description}";

        // 隐式转换为 byte
        public static implicit operator byte(ErrorCode error) => error.Code;

        // 根据错误码值查找错误码
        public static ErrorCode FromByte(byte code) => AllErrors.FirstOrDefault(e => e.Code == code);

        // 定义所有错误码
        public static readonly ErrorCode FunctionCodeError = new ErrorCode(0x01, "功能码错误");
        public static readonly ErrorCode DomainStartAddressError = new ErrorCode(0x02, "域数据首地址错误");
        public static readonly ErrorCode DataContentError = new ErrorCode(0x03, "数据内容错误");
        public static readonly ErrorCode DataTypeError = new ErrorCode(0x10, "数据类型错误");
        public static readonly ErrorCode DomainDataCountError = new ErrorCode(0x11, "域数据个数错误");
        public static readonly ErrorCode DataCountMismatch = new ErrorCode(0x12, "数据个数与内部区域数据个数不符");
        public static readonly ErrorCode WriteOperationDenied = new ErrorCode(0x13, "不能进行写操作");
        public static readonly ErrorCode CrcCheckError = new ErrorCode(0x14, "CRC校验错误");
        public static readonly ErrorCode DatabaseException = new ErrorCode(0x15, "数据库异常");
    }

}