using System;
using System.Data;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Web;
using System.Web.Script.Serialization;
using NJL = Newtonsoft.Json.Linq;
using NJ = Newtonsoft.Json;
using HZQR.Common;

namespace SuperMap.RealEstate.Contract.Common
{
    public class Common
    {
        public const string charSet = "1,2,3,4,5,6,7,8,9";

        #region 方法 -> 获取get,post传参的值
        public static string Request(string key)
        {
            var v = HttpContext.Current.Request.Form[key];

            if (v == null)
            {
                v = HttpContext.Current.Request.QueryString[key];
            }

            return v ?? string.Empty;
        }
        #endregion

        #region 方法 -> 发票查验接口
        public static bool GetBillState(string fpdm, string fphm, string kprq, string je, string jym, string BillAppKey, string ServiceUrl)
        {
            bool Flag = false;
            try
            {
                //fpdm:发票代码,fphm:发票号码,kprq:开票日期,je:金额（非专票随便填个值）,jym:校验码后六位（专票随便填个值）
                string[] arg = { fpdm, fphm, kprq, je, jym, BillAppKey, null };
                string reString = WSHelper.InvokeWebService(ServiceUrl, "BillInfoQuery", arg).ToString();
                NJL.JObject _JObject = (NJL.JObject)NJ.JsonConvert.DeserializeObject(reString);
                if (_JObject["BillInfo"].ToString() != "[]")
                {
                    Flag = true;
                }
            }
            catch (Exception ex)
            {
                Flag = false;
            }
            return Flag;
        }
        #endregion

        #region 方法 -> 生成验证码
        /// <summary>    
        /// 生成验证码          
        /// <param name="n">位数</param>   
        /// <returns>验证码字符串</returns>   
        private string CreateRandomCode(int n)
        {
            string[] CharArray = charSet.Split(',');
            string randomCode = "";
            int temp = -1;
            Random rand = new Random();
            for (int i = 0; i < n; i++)
            {
                if (temp != -1)
                {
                    rand = new Random(i * temp * ((int)DateTime.Now.Ticks));
                }
                int t = rand.Next(CharArray.Length - 1);
                if (temp == t)
                {
                    return CreateRandomCode(n);
                }
                temp = t;
                randomCode += CharArray[t];
            }
            return randomCode;
        }
        #endregion

        #region 方法 -> 日期格式转换
        /// <summary>
        /// 将DateTime类型转换为long类型
        /// </summary>
        /// <param name="dt">时间</param>
        /// <returns></returns>
        public static long ConvertDataTimeLong(DateTime dt)
        {
            DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
            TimeSpan toNow = dt.Subtract(dtStart);
            long timeStamp = toNow.Ticks;
            timeStamp = long.Parse(timeStamp.ToString().Substring(0, timeStamp.ToString().Length - 7));
            return timeStamp;
        }

        /// <summary>
        /// 将Long类型转换为DateTime类型
        /// </summary>
        /// <param name="d">long</param>
        /// <returns></returns>s
        public static DateTime ConvertLongDateTime(long d)
        {
            DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
            long lTime = long.Parse(d + "0000000");
            TimeSpan toNow = new TimeSpan(lTime);
            DateTime dtResult = dtStart.Add(toNow);
            return dtResult;
        }
        #endregion

        #region 创建md5 16位大写加密
        public static string CreateMD5(string text)
        {
            var md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
            //换成utf8后对于中文加密也适用
            byte[] output = md5.ComputeHash(System.Text.Encoding.UTF8.GetBytes(text));
            string pass2md5 = BitConverter.ToString(output, 4, 8).Replace("-", "");
            //pass2md5 = pass2md5.ToUpper();
            return pass2md5;
        }
        #endregion

        #region 方法 -> Json 字符串 转换为 DataTable数据集合
        /// <summary>
        /// Json 字符串 转换为 DataTable数据集合
        /// </summary>
        /// <param name="json"></param>
        /// <returns></returns>
        public static DataTable ToDataTable(string json)
        {
            DataTable dataTable = new DataTable();  //实例化
            DataTable result;
            try
            {
                JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer();
                javaScriptSerializer.MaxJsonLength = Int32.MaxValue; //取得最大数值
                ArrayList arrayList = javaScriptSerializer.Deserialize<ArrayList>(json);
                if (arrayList.Count > 0)
                {
                    foreach (Dictionary<string, object> dictionary in arrayList)
                    {
                        if (dictionary.Keys.Count == 0)
                        {
                            result = dataTable;
                            return result;
                        }
                        //Columns
                        if (dataTable.Columns.Count == 0)
                        {
                            foreach (string current in dictionary.Keys)
                            {
                                dataTable.Columns.Add(current, dictionary[current].GetType());
                            }
                        }
                        //Rows
                        DataRow dataRow = dataTable.NewRow();
                        foreach (string current in dictionary.Keys)
                        {
                            dataRow[current] = dictionary[current];
                        }
                        dataTable.Rows.Add(dataRow); //循环添加行到DataTable中
                    }
                }
            }
            catch
            {
            }
            result = dataTable;
            return result;
        }
        #endregion

        #region 方法 -> HTTP报文请求
        /// <summary>
        /// HTTP报文请求
        /// </summary>
        /// <param name="postDataStr">请求参数</param>
        /// <param name="RequestUrl">请求url</param>
        /// <param name="ContentType">资源的媒体类型，默认application/x-www-form-urlencoded</param>
        /// <param name="timeout">超时时间（TCP连接建立的时间和整个请求完成的时间超出了设置的时间，就抛出异常，程序中断）</param>
        /// <param name="securityProtocol">服务器通信的默认安全协议（众马对账通信需使用Tls12,WCF默认通道即可）</param>
        /// <returns></returns>
        public static string HttpUrlPost(string postDataStr, string RequestUrl,
            string ContentType = "application/x-www-form-urlencoded", int timeout = 0)
        {
            try
            {
                CookieContainer cookieContainer = new CookieContainer();
                byte[] postBytes = System.Text.Encoding.UTF8.GetBytes(postDataStr);
                // 设置提交的相关参数
                ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
                HttpWebRequest request = WebRequest.Create(RequestUrl) as HttpWebRequest;
                if (timeout > 0)
                {
                    request.Timeout = timeout * 1000;
                }
                request.Method = "POST";
                request.KeepAlive = false;
                request.ContentType = ContentType;
                request.CookieContainer = cookieContainer;
                request.ContentLength = postBytes.Length;

                using (System.IO.Stream reqStream = request.GetRequestStream())
                {
                    reqStream.Write(postBytes, 0, postBytes.Length);
                }
                using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
                {
                    //在这里对接收到的页面内容进行处理
                    //直到request.GetResponse()程序才开始向目标网页发送post请求
                    System.IO.Stream responseStream = response.GetResponseStream();
                    System.IO.StreamReader reader = new System.IO.StreamReader(responseStream, System.Text.Encoding.GetEncoding("utf-8"));
                    string val = reader.ReadToEnd();
                    return val;
                }
            }
            catch (Exception ex)
            {
                SuperMap.RealEstate.Utility.ErrorLogHelper.Write(ex, "Post请求", "Post请求：" + postDataStr + "，" + RequestUrl);
                return ex.ToString();
            }
        }

        public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
        {
            return true;
        }
        #endregion
    }
}