using DingTalk.Api;
using DingTalk.Api.Request;
using DingTalk.Api.Response;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using System.Web.Caching;

namespace HH.YiDaSyncNC.Helper
{
    class CommHelper
    {
        private static readonly string appKey = ConfigurationManager.AppSettings["AppKey"];
        private static readonly string appSecret = ConfigurationManager.AppSettings["AppSecret"];

        /// <summary>
        /// 时间转时间戳(秒)
        /// </summary>
        /// <param name="date">时间</param>
        /// <returns></returns>
        public static long GetTimeStamp(DateTime date)
        {
            //var unix = date.ToUniversalTime() - new DateTime(1970, 1, 1, 0, 0, 0, 0);
            //TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
            //return Convert.ToInt64(unix.TotalSeconds * 1000);
            var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
            return Convert.ToInt64((date.ToUniversalTime() - epoch).TotalSeconds);
        }

        /// <summary>
        /// 时间转时间戳(毫秒)
        /// </summary>
        /// <param name="date">日期</param>
        /// <returns></returns>
        public static long GetTimeStamps(DateTime date)
        {
            var unix = date.ToUniversalTime() - new DateTime(1970, 1, 1, 0, 0, 0, 0);
            TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
            return Convert.ToInt64(unix.TotalSeconds * 1000);
        }

        /// <summary>
        /// 时间戳转时间(毫秒)
        /// </summary>
        /// <param name="timestamp"></param>
        /// <returns></returns>
        public static DateTime GetDateTime(long timestamp)
        {
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));//当地时区  
            var time = startTime.AddMilliseconds(timestamp);
            return time;
        }

        #region 获取AccessToken
        public static string GetAccessToken()
        {
            // 将AccessToken存储至缓存
            SetAccessToken(new CacheItemRemovedReason());
            // 输出缓存中存储的AccessToken
            return HttpRuntime.Cache.Get("Dingtalk_AccessToken").ToString();
        }
        #endregion

        #region 设置AccessToken(企业内部开发)
        public static void SetAccessToken(CacheItemRemovedReason reason)
        {
            //企业内部开发
            var accessToken = HttpRuntime.Cache.Get("Dingtalk_AccessToken");
            if (accessToken == null)
            {
                //var time = GetTimeStamp(DateTime.Now);
                //var CorpId = corpid;
                //var AgentId = agentid;
                //var CustomKey = customkey;
                //var CustomSecret = customsecret;

                //string stringToSign = time+"\n"+"suiteTicket";
                //var signature = getSHA256(CustomSecret, stringToSign);

                //DefaultDingTalkClient client = new DefaultDingTalkClient("https://oapi.dingtalk.com/service/get_corp_token");
                //OapiServiceGetCorpTokenRequest req = new OapiServiceGetCorpTokenRequest();
                //req.AuthCorpid = CorpId;
                //OapiServiceGetCorpTokenResponse response = client.Execute(req, CustomKey, CustomSecret, "suiteTicket");
                //HttpRuntime.Cache.Insert("Dingtalk_AccessToken", response.AccessToken, null, DateTime.Now.AddSeconds(3600), Cache.NoSlidingExpiration);

                IDingTalkClient client = new DefaultDingTalkClient("https://oapi.dingtalk.com/gettoken");
                OapiGettokenRequest request = new OapiGettokenRequest();
                request.Appkey = appKey;
                request.Appsecret = appSecret;
                request.SetHttpMethod("GET");
                OapiGettokenResponse response = client.Execute(request);
                HttpRuntime.Cache.Insert("Dingtalk_AccessToken", response.AccessToken, null, DateTime.Now.AddSeconds(3600), Cache.NoSlidingExpiration);
            }
        }
        #endregion
    }
}