using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Gs.DevApp.ToolBox;
using System.Resources;
using System.Drawing;
using Newtonsoft.Json;
using Gs.DevApp.Models;

namespace Gs.DevApp.ToolBox
{
    /// <summary>
    /// 通用类
    /// </summary>
    public class Utility
    {
        private static string WebApiUrl = System.Configuration.ConfigurationSettings.AppSettings.Get("WebApiUrl").ToString();

        /// <summary>
        /// httpPost访问服务
        /// </summary>
        /// <param name="url">服务地址</param>
        /// <param name="meth">方法名称</param>
        /// <param name="param">参数</param>
        /// <returns></returns>
        public static string HttpPost(string url, string meth, string param)
        {
            if (string.IsNullOrEmpty(url))
                url = WebApiUrl;
            url += meth;
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
            request.Method = "POST";
            request.ContentType = "application/json";
            request.Headers.Add("token", GetBasicAuthTicket());
            request.Accept = "*/*";
            request.Timeout = 15000;
            request.AllowAutoRedirect = false;
            StreamWriter requestStream = null;
            WebResponse response = null;
            string responseStr = null;
            try
            {
                requestStream = new StreamWriter(request.GetRequestStream());
                requestStream.Write(param);
                requestStream.Close();
                response = request.GetResponse();
                if (response != null)
                {
                    StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
                    responseStr = reader.ReadToEnd();
                    //File.WriteAllText(Server.MapPath("~/") + @"\test.txt", responseStr); 
                    reader.Close();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                request = null;
                requestStream = null;
                response = null;
            }
            return responseStr;
        }
        /// <summary>
        /// 根据图片名读取资源文件,不带后缀名
        /// </summary>
        /// <param name="imageName"></param>
        /// <returns></returns>
        public static Image GetImgFromResource(string imageName)
        {
            // 获取当前程序集
            Assembly assembly = Assembly.GetExecutingAssembly();
            // 创建资源管理器来访问资源
            ResourceManager resourceManager = new ResourceManager("GsDxApp.Properties.Resources", assembly);
            // 尝试获取图片资源
            Image image = resourceManager.GetObject(imageName) as Image;
            if (image != null)
            {
                return image;
            }
            else
            {
                return null;
            }
        }
        /// <summary>
        /// 读取token
        /// </summary>
        /// <returns></returns>
        public static string GetBasicAuthTicket()
        {
            string token = Guid.NewGuid().ToString();
            return token;
        }
        /// <summary>
        /// 标准json串返回 table，
        /// </summary>
        /// <param name="strReturn"></param>
        /// <returns></returns>
        public static ReturnModel<PageListModel> GetTableByJson(string strReturn)
        {
            ReturnModel<PageListModel> rto = new ReturnModel<PageListModel>();
            JObject json = JObject.Parse(strReturn);
            rto.rtnCode = 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());
            JArray array = new JArray();
            var d = json["rtnData"]["list"];
            foreach (var a in d)
            {
                array.Add(a);
            }
            DataTable dt = JsonConvert.DeserializeObject<DataTable>(array.ToString());
            rto.rtnData.list = dt;
            return rto;
        }
    }
}