using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Cache;
using System.Text;
using System.Threading.Tasks;

namespace Gs.WeightIqc.ToolBox
{
    public class UtilityHelper
    {
        private static readonly string WebApiUrl =
          ConfigurationManager.AppSettings["WebApiUrl"];

        /// <summary>
        /// http请求
        /// </summary>
        /// <param name="url">api根地址</param>
        /// <param name="meth">方法名称</param>
        /// <param name="param">json参数</param>
        /// <param name="isLoading">是否loading</param>
        /// <returns></returns>
        public static string HttpPost(string url, string meth, string param, bool isLoading = true)
        {
            HttpWebRequest request = null;
            StreamWriter requestStream = null;
            WebResponse response = null;
            string responseStr = null;
            try
            {
                if (string.IsNullOrEmpty(url))
                    url = WebApiUrl;
                url += meth;
                request = (HttpWebRequest)WebRequest.Create(url);
                request.Method = "POST";
                request.ContentType = "application/json";
                request.Headers.Add("token", GetBasicAuthTicket());
                request.Accept = "*/*";
                request.Timeout = 150000;
                request.AllowAutoRedirect = false;
                request.ServicePoint.Expect100Continue = false;
                HttpRequestCachePolicy noCachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.NoCacheNoStore);
                request.CachePolicy = noCachePolicy;
                requestStream = new StreamWriter(request.GetRequestStream());
                requestStream.Write(param);
                requestStream.Close();
                response = request.GetResponse();
                if (response != null)
                {
                    var reader = new StreamReader(response.GetResponseStream(),
                        Encoding.UTF8);
                    responseStr = reader.ReadToEnd();
                    //File.WriteAllText(Server.MapPath("~/") + @"\test.txt", responseStr); 
                    reader.Close();
                }
            }
            catch (Exception ex)
            {
                LogHelper.Debug(url, param + ":" + ex.Message);
                throw ex;
            }
            finally
            {
                request = null;
                requestStream = null;
                response = null;
            }
            return responseStr;
        }


        /// <summary>
        ///     生成访问服务的token
        /// </summary>
        /// <returns></returns>
        public static string GetBasicAuthTicket()
        {
            var userGuid = "11111111-1111-1111-1111-111111111111";
            var token = userGuid;
            return token;
        }

        /// <summary>
        ///     服务返回的json返回ReturnModel，
        /// </summary>
        /// <param name="strReturn"></param>
        /// <returns></returns>
        public static ReturnModel<dynamic> ReturnToDynamic(string strReturn)
        {
            var rto = new ReturnModel<dynamic>();
            var json = JObject.Parse(strReturn);
            rto.rtnCode = int.Parse(json["rtnCode"].ToString());
            rto.rtnMsg = json["rtnMsg"].ToString();
            rto.rtnData = json["rtnData"];
            return rto;
        }
        /// <summary>
        ///     服务返回的json串返回ReturnModel-->仅仅有list,不分页，
        /// </summary>
        /// <param name="strReturn"></param>
        /// <returns></returns>
        public static ReturnModel<DataTable> ReturnToList(string strReturn)
        {
            var rto = new ReturnModel<DataTable>();
            var json = JObject.Parse(strReturn);
            rto.rtnCode = int.Parse(json["rtnCode"].ToString());
            rto.rtnMsg = json["rtnMsg"].ToString();
            rto.rtnData = new DataTable();
            var array = new JArray();
            var d = json["rtnData"];
            foreach (var a in d) array.Add(a);
            //if (array.Count <=0)
            //    return null;
            var dt = JsonConvert.DeserializeObject<DataTable>(array.ToString());
            rto.rtnData = dt;
            return rto;
        }
        /// <summary>
        ///     服务返回的json转为ReturnModel-->包含TablePage分页，
        /// </summary>
        /// <param name="strReturn"></param>
        /// <returns></returns>
        public static ReturnModel<PageListModel> ReturnToTablePage(
            string strReturn)
        {
            var rto = new ReturnModel<PageListModel>();
            var json = JObject.Parse(strReturn);
            rto.rtnCode = int.Parse(json["rtnCode"].ToString());
            rto.rtnMsg = json["rtnMsg"].ToString();
            rto.rtnData = new PageListModel();
            rto.rtnData.pages = int.Parse(json["rtnData"]["pages"].ToString());
            rto.rtnData.total = int.Parse(json["rtnData"]["total"].ToString());
            rto.rtnData.everyPageSize =
                int.Parse(json["rtnData"]["everyPageSize"].ToString());
            var array = new JArray();
            var d = json["rtnData"]["list"];
            foreach (var a in d) array.Add(a);
            var dt = JsonConvert.DeserializeObject<DataTable>(array.ToString());
            rto.rtnData.list = dt;
            return rto;
        }


    }
}