/**发布环境 使用发布环境 发布的正式签名KEY**/
#define Distribution

///**测试环境 使用测试环境 使用测试的签名KEY**/
//#undef Distribution 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Security.Cryptography;
using System.Text;
//using HDL_ON.Entity;
using RestSharp;
using Shared.SimpleControl;



namespace Shared
{
    public class HttpUtil
    {

        ///// <summary>
        ///// API_HTTPS
        ///// </summary>
        //public const string API_HTTPS = "https://";
        /// <summary>
        /// RegionMark
        /// </summary>
        public const string RegionMark = "HDL";
        /// <summary>
        /// 请求超时时间
        /// </summary>
        public const int TIME_OUT = 10;
        /// <summary>
        /// 特殊接口请求超时时间
        /// </summary>
        public const int TIME_OUT_LONG = 20;
        /////// <summary>
        /////// Bearer 暂时设为空，从登陆成功的返回的headerPrefix参数动态获取
        /////// </summary>
        //public const string TOKEN_BEARER = "Bearer ";





#if Distribution
        ///**********正式环境**********
        /// <summary>
        /// 固定域名,正式环境
        /// 公共域名就近解析
        /// </summary>
        public const string GlobalRequestHttpsHost = "https://bahrain-gateway.hdlcontrol.com";
        /// <summary>
        /// 
        /// </summary>
        const string APP_KEY = "HDL-HOME-IND-APP";
        /// <summary>
        /// 
        /// </summary>
        const string SECRET_KEY = "yPL345bn68gHnvilG4tYbq3cTYkiHu";

#else
        ///**********测试环境**********
        /// <summary>
        /// 固定域名,测试境
        /// 公共域名就近解析
        /// </summary>
        public const string GlobalRequestHttpsHost = "https://china-gateway.hdlcontrol.com";
        /// <summary>
        /// 
        /// </summary>
        const string APP_KEY = "HDL-APP-TENANT";
        /// <summary>
        /// 
        /// </summary>
        const string SECRET_KEY = "CeL345bn28gHnvi9G4tYcq3cTYkiiC";
#endif



        #region **********签名校验**********
        ///// <summary>
        ///// 
        ///// </summary>
        //const string APP_KEY = "HDL-HOME-APP-TEST";
        ///// <summary>
        ///// 
        ///// </summary>
        //const string SECRET_KEY = "WeJ8TY88vbakCcnvH8G1tDUqzLWY8yss";



        /// <summary>
        /// 获取当前时间戳值
        /// </summary>
        /// <returns></returns>
        static string GetTimestamp ()
        {
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime (new System.DateTime (1970, 1, 1)); // 当地时区
            return ((long)(DateTime.Now - startTime).TotalMilliseconds).ToString (); // 相差秒数
            //return ((long)(DateTime.Now - startTime).TotalSeconds).ToString(); // 相差秒数
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="signstr"></param>
        /// <returns></returns>
        static string SignMD5Encrypt (string s)
        {
            byte [] sign = MD5.Create ().ComputeHash (UTF8Encoding.UTF8.GetBytes (s));
            string signstr = string.Empty;
            foreach (byte item in sign) {
                signstr += item.ToString ("X2");
            }
            return signstr.ToLower ();
        }

        /// <summary>
        /// 判断当前值是否需要参与签名，保持跟云端一致
        /// 空字符串不参与
        /// 数组,集合,对象不参与
        /// </summary>
        /// <param name="valueStr"></param>
        /// <returns></returns>
        static bool IfValueNeedSign (string valueStr)
        {
            if (string.IsNullOrEmpty (valueStr) || valueStr.StartsWith ("{") || valueStr.StartsWith ("[")) {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 2020-11-02
        /// 基础服务的接口都要校验sign
        /// 计算sign签名
        /// </summary>
        /// <returns></returns>
        public static string GetSignRequestJson (object requestObj)
        {
            try {
                //1. 将model实体转为Dictionary<string, object>
                var paramDictionary = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, object>> (Newtonsoft.Json.JsonConvert.SerializeObject (requestObj));
                //2. 计算sign
                if (paramDictionary != null) {
                    paramDictionary.Add ("appKey", APP_KEY);
                    paramDictionary.Add ("timestamp", GetTimestamp ());
                    //2.1 字典升序
                    paramDictionary = paramDictionary.OrderBy (o => o.Key).ToDictionary (o => o.Key, p => p.Value);
                    //2.2 拼接按URL键值对
                    string str = string.Empty;
                    foreach (KeyValuePair<string, object> item in paramDictionary) {
                        //Value为null不参加校验
                        if (item.Value != null) {
                            //检测当前参数是否需要参与校验
                            if (IfValueNeedSign (item.Value.ToString ())) {
                                //如果是bool类型，要转小写
                                if (item.Value is bool) {
                                    str += item.Key + "=" + item.Value.ToString ().ToLower () + "&";
                                } else {
                                    str += item.Key + "=" + item.Value.ToString () + "&";
                                }
                            }
                        }
                    }

                    //2.3 拼接SECRET_KEY
                    str = str.Substring (0, str.Length - 1) + SECRET_KEY;
                    //2.4 MD5转换+转小写
                    var signstr = SignMD5Encrypt (str);
                    paramDictionary.Add ("sign", signstr);
                    var signResult = Newtonsoft.Json.JsonConvert.SerializeObject (paramDictionary);
                    return signResult;
                } else {
                    return "";
                }
            } catch {
                return "";
            }
        }

        #endregion
    }

    /// <summary>
    /// 响应参数
    /// </summary>
    [Serializable]
    public class ResponsePackNew
    {
        /// <summary>
        /// 响应状态码
        /// </summary>
        public string Code;

        /// <summary>
        /// 响应内容
        /// </summary>
        public object Data;

        /// <summary>
        /// 响应错误信息
        /// </summary>
        public string message;

        /// <summary>
        /// 这个是请求错误时的扩展数据,以后所有的附带扩展数据都会放在这里面动态维护
        /// </summary>
        public object extra;


    }

}