using Microsoft.SolverFoundation.Services;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Xml;

namespace OTSExtremum.Business
{
    public class Tools
    {
        /// <summary>
        /// 判断字符串是否是int/double
        /// </summary>
        public static bool IsIntOrDouble(string strNumber)
        {
            Regex objNotNumberPattern = new Regex("[^0-9.-]");
            Regex objTwoDotPattern = new Regex("[0-9]*[.][0-9]*[.][0-9]*");
            Regex objTwoMinusPattern = new Regex("[0-9]*[-][0-9]*[-][0-9]*");
            const string strValidRealPattern = "^([-]|[.]|[-.]|[0-9])[0-9]*[.]*[0-9]+$";
            const string strValidIntegerPattern = "^([-]|[0-9])[0-9]*$";
            Regex objNumberPattern = new Regex("(" + strValidRealPattern + ")|(" + strValidIntegerPattern + ")");
            return !objNotNumberPattern.IsMatch(strNumber) &&
                   !objTwoDotPattern.IsMatch(strNumber) &&
                   !objTwoMinusPattern.IsMatch(strNumber) &&
                   objNumberPattern.IsMatch(strNumber);
        }
        /// <summary>
        /// 数据离群分析，排除外围数据。返回值：1最大值越界；2最小值越界；0正常范围
        /// </summary>
        public static int Grubbls(double[] arrData)
        {
            //格布拉斯（Grubbls）检验法的临界值--ｋ值
            double[] grubbls = {
                0,0,1.156,1.492,1.749,1.944,2.097,2.221,2.323,2.410,2.485,2.550,
                2.607,2.650,2.705,2.747,2.785,2.821,2.854,2.884,2.912,2.939,2.963,2.987,
                3.009,3.029,3.049,3.085,3.103,3.119,3.135,3.150,3.164,3.178,3.178,3.191,
                3.204,3.216,3.228,3.240,3.251,3.261,3.271,3.282,3.292,3.302,3.310,3.319,
                3.329,3.336,3.345,3.353,3.361,3.368,3.376,3.383,3.391,3.397,3.405,3.411,
                3.418,3.424,3.430,3.437,3.442,3.449,3.454,3.46,3.466,3.471
            };
            double xAvg = Mean(arrData);
            int arrNum = arrData.Length;
           
            double sdev = StDev(arrData);
            double max = arrData.Max();
            double min= arrData.Min();
            double Tmax = (max - xAvg) / sdev;
            double Tmin= (xAvg - min) / sdev;
            double T = grubbls[arrData.Count() - 1];
            
            if (Tmax > T)
            {
                return 1;
            }
            else if (Tmin > T)
            {
                return 2;
            }
            else
            {
                return 0;
            }

        }
        //计算标准偏差  
        public static double StDev(double[] arrData) 
        {
            double xAvg = Mean(arrData);
            double sSum = 0;
            double tmpStDev = 0;
            int arrNum = arrData.Length;
        
            for (int j = 0; j < arrNum; j++)
            {
                sSum += ((arrData[j] - xAvg) * (arrData[j] - xAvg));
            }
            tmpStDev = Convert.ToSingle(Math.Sqrt((sSum / (arrNum - 1))).ToString());
            return tmpStDev;
        }
        //平均值
        public static double Mean(double[] arrData)
        {
            double xSum = 0;
            double xAvg = 0;
            
            int arrNum = arrData.Length;
            for (int i = 0; i < arrNum; i++)
            {
                xSum += arrData[i];
            }
            xAvg = xSum / arrNum;
            return xAvg;
        }
        //δmom
        public static double Delta(double[] arrData)
        {
            double sdev = StDev(arrData);
            double xAvg=sdev*Math.Sqrt(6) / 3.1416;//δ
            return xAvg;
        }
        //λmom
        public static double Lambda(double[] arrData)
        {
            double delta = Delta(arrData);
            double mean = Mean(arrData);
            double xAvg = mean - 0.5772 * delta;
            return xAvg;
        }
        /// <summary>
        /// 规划求值
        /// </summary>
        /// <param name="gg">传入原始数据</param>
        /// <returns>double[δ,λ,max]</returns>
        public static double[] OPTMax(double[] gg)
        {
            SolverContext context = SolverContext.GetContext();
            //创建模型
            Model model = context.CreateModel();
            //优化决策因子，变量为实数,Domain.Integer|Domain.IntegerNonnegative为整数优化
            Decision x = new Decision(Domain.Real, "x");
            Decision y = new Decision(Domain.Real, "y");
            //添加
            model.AddDecisions(x, y);

            //优化
            Solution solution = context.Solve();

            Goal gmax = model.AddGoal("zmax", GoalKind.Maximize, GetFun(gg,x, y));
            //优化
            solution = context.Solve();
          
            double[] ret = new double[] { x.ToDouble(), y.ToDouble(), solution.Goals.First<Goal>().ToDouble() };
            context.ClearModel();

            return ret;
        }
        //返回公式
        private static Term GetFun(double[] gg,Decision delta, Decision lambda)
        {

           // double[] gg = { 140, 240, 532, 205, 150, 110, 200, 180, 220, 300, 70, 390, 100, 90, 320, 190, 250, 150, 280, 250, 490, 120, 500, 200 };
           // Array.Sort(gg);
            Term xx = Model.Log(1 / delta) - (gg[0] - lambda) / delta - Model.Exp((lambda - gg[0]) / delta);
            for (int i = 1; i < gg.Count(); i++)
            {
                xx = xx + Model.Log(1 / delta) - (gg[i] - lambda) / delta - Model.Exp((lambda - gg[i]) / delta);
            }
            return xx;
        }
        /// <summary>
        /// 获取XML节点参数
        /// </summary>
        /// <param name="Name">节点参数名称</param>
        /// <returns>节点参数</returns>
        public static string GetXMLInformations(string xmlFilePath, string Name)
        {
            try
            {
                string value = string.Empty;
                XmlDocument doc = new XmlDocument();

                doc.Load(xmlFilePath);    //加载Xml文件  

                XmlElement root = doc.DocumentElement;   //获取根节点  

                XmlNodeList mainNodes = root.GetElementsByTagName("parameter"); //获取子节点集合  

                foreach (XmlNode node in mainNodes)
                {
                    //获取Name属性值
                    string name = ((XmlElement)node).GetAttribute("Name");
                    if (name.Equals(Name))
                    {
                        value = ((XmlElement)node).GetAttribute("Value");
                    }
                }
                return value;
            }
            catch (Exception)
            {
                return "";
            }
        }
        #region Base64加密解密
        /// <summary>
        /// Base64加密
        /// </summary>
        /// <param name="input">需要加密的字符串</param>
        /// <returns></returns>
        public static string Base64Encrypt(string input)
        {
            return Base64Encrypt(input, new UTF8Encoding());
        }

        /// <summary>
        /// Base64加密
        /// </summary>
        /// <param name="input">需要加密的字符串</param>
        /// <param name="encode">字符编码</param>
        /// <returns></returns>
        public static string Base64Encrypt(string input, Encoding encode)
        {
            return Convert.ToBase64String(encode.GetBytes(input));
        }

        /// <summary>
        /// Base64解密
        /// </summary>
        /// <param name="input">需要解密的字符串</param>
        /// <returns></returns>
        public static string Base64Decrypt(string input)
        {
            return Base64Decrypt(input, new UTF8Encoding());
        }

        /// <summary>
        /// Base64解密
        /// </summary>
        /// <param name="input">需要解密的字符串</param>
        /// <param name="encode">字符的编码</param>
        /// <returns></returns>
        public static string Base64Decrypt(string input, Encoding encode)
        {
            return encode.GetString(Convert.FromBase64String(input));
        }
        #endregion
    }
    //分组数据信息
    public class groupInfo
    {
        //数据
        public double[] values { set; get; }
        //名称
        public string groupTitle { set; get; }
    }
}