using JiShe.CollectBus.Common.Extensions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace JiShe.CollectBus.Protocol
{
    public static class Protocol3761Extensions
    {

         /// <summary>
        /// 3761协议数据字节校验
         /// </summary>
         /// <param name="value"></param>
         /// <returns></returns>
        public static bool Check3761Byte(this string value)
        {
            if (!value.ToUpper().Equals("FF") && !value.ToUpper().Equals("EE"))
                return true;
            return false;
        }

        /// <summary>
        /// 字符串中是否包含字母
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static bool IsLetterExists(this string value)
        {
            return Regex.Matches(value, "[a-zA-Z]").Count > 0;
        }

        /// <summary>
        /// 判断错误代码 
        /// </summary>
        public static Tuple<string,string>? CheckErrorCode(this List<string> data)
        {
            var value = string.Join("", data);
            if (value.IsLetterExists())
            {
                var code = ErrorCodes().Where(f =>  value.Contains(f.Key)).FirstOrDefault();
                if (code.Key != null)
                    return Tuple.Create(code.Key,code.Value);
                else
                  return Tuple.Create("EE", "未知数据错误"); 
            }
            return null;
        }

        /// <summary>
        /// 判断错误代码 
        /// </summary>
        public static Tuple<string, string>? CheckErrorCode(this string value)
        {
            if (value.IsLetterExists())
            {
                var code = ErrorCodes().Where(f => value.Contains(f.Key)).FirstOrDefault();
                if (code.Key != null)
                    return Tuple.Create(code.Key, code.Value);
                else
                    return Tuple.Create("EE", "未知数据错误");
            }
            return null;
        }

        /// <summary>
        /// 错误信息
        /// </summary>
        /// <returns></returns>
        public static Dictionary<string, string> ErrorCodes()
        {
            return new Dictionary<string, string>() 
            {
                { "FF", "电表无此数据项" },
                { "EE", "未知数据错误" },
                { "E1", "数据点缺少(停电)" },
                { "E2", "通讯异常" },
                { "E3", "集中器未配置数据项" },
                { "E4", "电表档案无效" },
                { "E5", "电表无此数据项" },
                { "E6", "电表时间异常" },
                { "E7","暂停抄表" }
            };
        }


        /// <summary>
        /// 费率数
        /// </summary>
        /// <param name="index"></param>
        /// <param name="len"></param>
        /// <returns></returns>
        public static int GetRatingCount(this List<string> hexMessageList ,int index, int len)
        {
            var list = hexMessageList.GetRange(index, len);
            return list.Count > 0 ? list[0].HexToDec() : 0;
        }


        /// <summary>
        /// 抄表时间
        /// </summary>
        /// <param name="index"></param>
        /// <param name="len"></param>
        /// <returns></returns>
        public static string GetReadTime(this List<string> hexMessageList, int index, int len)
        {
            var list = hexMessageList.GetRange(index, len);
            return list.GetReadTime();
        }

        /// <summary>
        /// 抄表时间
        /// </summary>
        /// <param name="data"></param>
        /// <returns></returns>
        public static string GetReadTime(this List<string> data)
        {
            data.Reverse();
            data.Insert(0, DateTime.Now.ToString("yyyy").Substring(0, 2));
            return string.Join("", data);
        }


    }
}