using Google.Protobuf.WellKnownTypes;
using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Http;
using System.Text;

namespace Appointment.Entity
{
    public class WechatHelper
    {
        private static HttpClient _HttpClient = null;
        static readonly log4net.ILog log = log4net.LogManager.GetLogger(typeof(WechatHelper));

        static WechatHelper()
        {
            _HttpClient = new HttpClient(new HttpClientHandler());
        }

        public object JsonConvert { get; private set; }

        /// <summary>
        /// 根据小程序登录code获取用户信息
        /// </summary>
        /// <param name="code"></param>
        /// <returns></returns>
        public ApiResult<WeChatLoginRes> Code2Session(string code)
        {
            string appId = BaseConfig.App(new string[] { "WeChat", "AppId" });
            if (string.IsNullOrWhiteSpace(appId)) ApiResult<WeChatLoginRes>.Failed("缺少配置参数 [AppId]！");
            string appSecret = BaseConfig.App(new string[] { "WeChat", "AppSecret" });
            if (string.IsNullOrWhiteSpace(appSecret)) ApiResult<WeChatLoginRes>.Failed("缺少配置参数 [AppSecret]！");

            if (string.IsNullOrWhiteSpace(code) || string.IsNullOrWhiteSpace(appId) || string.IsNullOrWhiteSpace(appSecret))
            {
                return ApiResult<WeChatLoginRes>.Failed("获取小程序配置信息出错");
            }

            string url = $"https://api.weixin.qq.com/sns/jscode2session?appid={appId}&secret={appSecret}&js_code={code}&grant_type=authorization_code";

            var res = _HttpClient.GetAsync(url).Result;
            if (res.StatusCode == HttpStatusCode.OK)
            {
                var result = Encoding.Default.GetString(res.Content.ReadAsByteArrayAsync().Result);
                log.Info($"jscode2session:{result}");
                if (string.IsNullOrWhiteSpace(result) || result.IndexOf("session_key") == -1)
                {
                    return ApiResult<WeChatLoginRes>.Failed("调用微信接口失败,可能code已失效");
                }

                var weChatDto = Newtonsoft.Json.JsonConvert.DeserializeObject<WeChatLoginRes>(result);

                return ApiResult<WeChatLoginRes>.Success("", weChatDto);
            }
            else
            {
                return ApiResult<WeChatLoginRes>.Failed("调用微信接口失败");
            }
        }

        //

        public class LoveInnGetAccessTokenReq
        {
            public string AppId { get; set; }

            public string AppName { get; set; }

            public string AppSecret { get; set; }
        }


        /// <summary>
        /// 模版信息
        /// </summary>
        /// <returns></returns>
        public static string BuildTemlMsg(string toUser, string tmplId, string url, string first, string remark, params object[] args)
        {
            string appId = BaseConfig.App(new string[] { "WeChat", "AppId" });
            if (string.IsNullOrWhiteSpace(appId)) ApiResult<WeChatLoginRes>.Failed("缺少配置参数 [AppId]！");

            StringBuilder sbMsg = new StringBuilder();

            sbMsg.Append("{");
            sbMsg.AppendFormat("\"touser\":\"{0}\",", toUser);
            sbMsg.AppendFormat("\"template_id\":\"{0}\",", tmplId);
            sbMsg.Append("\"miniprogram\":{");
            sbMsg.AppendFormat("\"appid\":\"{0}\",", appId);
            sbMsg.AppendFormat("\"pagepath\":\"{0}\"", url);
            sbMsg.Append("},");
            sbMsg.Append("\"topcolor\":\"#FF0000\",");
            sbMsg.Append("\"data\":");
            sbMsg.Append("{");

            sbMsg.Append("\"first\":");
            sbMsg.Append("{");
            sbMsg.AppendFormat("\"value\":\"{0}\",", first);
            sbMsg.AppendFormat("\"color\":\"{0}\"", "#333333");
            sbMsg.Append("},");

            for (int i = 0; i < args.Length; i++)
            {
                sbMsg.AppendFormat("\"keyword{0}\":", i + 1);
                sbMsg.Append("{");
                sbMsg.AppendFormat("\"value\":\"{0}\",", args[i]);
                sbMsg.AppendFormat("\"color\":\"{0}\"", "#333333");
                sbMsg.Append("},");
            }

            sbMsg.Append("\"remark\":");
            sbMsg.Append("{");
            sbMsg.AppendFormat("\"value\":\"{0}\",", remark);
            sbMsg.AppendFormat("\"color\":\"{0}\"", "#333333");
            sbMsg.Append("}");

            sbMsg.Append("}");
            sbMsg.Append("}");





            return sbMsg.ToString();
        }
    }
}