using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Linq;
using System.Xml.XPath;

namespace bnhtrade.Core.Data.AmazonMWS
{
    public class CurrentDateTime
    {
        public DateTime GetUtc()
        {
            var xmlDoc = new XmlDocument();
            xmlDoc.Load("https://mws.amazonservices.com/");
            DateTime returnTime = default(DateTime);

            XmlNodeList elemList = xmlDoc.GetElementsByTagName("Timestamp");
            for (int i = 0; i < elemList.Count; i++)
            {
                string attrVal = elemList[i].Attributes["timestamp"].Value;
                if (!string.IsNullOrWhiteSpace(attrVal))
                {
                    returnTime = DateTime.SpecifyKind(DateTime.Parse(attrVal), DateTimeKind.Utc);
                    break;
                }
            }

            if (returnTime == default(DateTime))
            {
                throw new Exception("Error requesting time from Amazon");
            }

            returnTime = returnTime.AddTicks(-(returnTime.Ticks % TimeSpan.TicksPerSecond));

            return returnTime;
        }
        public DateTime GetLocal()
        {
            return GetUtc().ToLocalTime();
        }
    }
}