using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using Newtonsoft.Json;

namespace DSWeb.Areas.Storage.Helper
{
    public class TemplateMessageHelper
    {
        public static bool SendTemplateMessage(string appid, string templateId, List<Tuple<string, string, string>> values, string toUser, string url, out string message)
        {

            StringWriter strWriter = new StringWriter();
            JsonWriter jwriter = new JsonTextWriter(strWriter);
            jwriter.WriteStartObject();
            jwriter.WritePropertyName("touser");
            jwriter.WriteValue(toUser);
            jwriter.WritePropertyName("template_id");
            jwriter.WriteValue(templateId);
            jwriter.WritePropertyName("url");
            jwriter.WriteValue(url);
            jwriter.WritePropertyName("data");

            //data
            jwriter.WriteStartObject();
            foreach (var item in values)
            {
                jwriter.WritePropertyName(item.Item1);
                jwriter.WriteStartObject();
                jwriter.WritePropertyName("value");
                jwriter.WriteValue(item.Item2);
                if (!string.IsNullOrWhiteSpace(item.Item3))
                {
                    jwriter.WritePropertyName("color");
                    jwriter.WriteValue(item.Item3);
                }

                jwriter.WriteEndObject();
            }
            jwriter.WriteEndObject();

            jwriter.WriteEndObject();

            string strJson = strWriter.ToString();
            try
            {
                string token = string.Empty;
                string errorMsg = string.Empty;
                bool success = Dispatch.Helper.TokenHelper.GetMpToken(appid, out token, out errorMsg);
                if (success)
                {
                    //请求模板发送
                    string postUrl = $"https://api.weixin.qq.com/cgi-bin/message/template/send?access_token={token}";
                    string rtnPost = Dispatch.Helper.WebRequestHelper.DoPost(postUrl, strJson);
                    var obj = new { errcode = "", errmsg = "", msgid = "" };
                    var jObj = JsonConvert.DeserializeAnonymousType(rtnPost, obj);
                    if (jObj.errcode == "0")
                    {
                        message = "";
                        return true;
                    }
                    else
                    {
                        message = $"{jObj.errmsg},code:{jObj.errcode}";
                        return false;
                    }
                }
                else
                {
                    message = errorMsg;
                    return false;
                }
            }
            catch (Exception ex)
            {
                message = $"{ex.Message}";
                return false;
            }
        }
    }
}