Added NightAlert project for travel kit
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219
NightScout/SocketIONightscoutDataSource.cs
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219
NightScout/SocketIONightscoutDataSource.cs
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data.Odbc;
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using System.Diagnostics;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using Newtonsoft.Json.Linq;
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using NightScout.Interfaces;
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using NightscoutLibrary.Configuration;
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using Quobject.EngineIoClientDotNet.Client.Transports;
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using Quobject.SocketIoClientDotNet.Client;
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namespace NightScout
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{
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public class NightscoutDataSource : INightscoutDataSource
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{
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public Socket Socket { get; set; }
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public Manager Manager { get; set; }
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public log4net.ILog Logger { get; set; }
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public IRaspberryPiButtonSource ButtonSource { get; set; }
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public INightscoutAlertConfiguration NightscoutAlertConfiguration { get; set; }
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public event Action Connected;
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public event Action<Object> DataUpdate;
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public event Action<Object> SocketError;
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public event Action<Object> Alarm;
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public event Action<Object> UrgentAlarm;
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public event Action<Object> ClearAlarm;
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public event Action StaleDataAlarm;
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private DateTime lastDataUpdate = DateTime.Now;
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private DateTime lastSgvReading = DateTime.Now;
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public NightscoutDataSource(INightscoutAlertConfiguration configuration, log4net.ILog logger)
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{
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Logger = logger;
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NightscoutAlertConfiguration = configuration;
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ResetManagerAndConnect();
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PrepareSocketEvents();
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}
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public NightscoutDataSource(INightscoutAlertConfiguration configuration, log4net.ILog logger, IRaspberryPiButtonSource buttonSource)
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: this(configuration, logger)
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{
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ButtonSource = buttonSource;
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ButtonSource.ButtonStateChange += ButtonSource_ButtonStateChange;
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}
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public void Emit(String eventName, String data)
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{
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Socket.Emit(eventName, data);
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}
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public void Emit(String eventName, JObject data)
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{
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Socket.Emit(eventName,data);
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}
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public virtual void Authorize()
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{
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JObject authRequest = new JObject {{"client", "web"}};
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Socket.Emit("authorize", authRequest);
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}
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public virtual void ClearAlerts()
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{
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Logger.Info("Sending Clear Alerts Message");
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Socket.Emit("ack", 2, "default", 45 * 60 * 1000);
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Logger.Debug("Sent ack");
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}
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protected virtual void OnConnect()
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{
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Logger.Info("Connected to Socket.IO endpoint");
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if (Connected != null)
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Connected();
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}
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protected virtual void OnDataUpdate(object data)
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{
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Logger.DebugFormat("Data Update: {0}", data);
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if (DataUpdate != null)
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DataUpdate(data);
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//Update lastUpdated
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JObject dataUpdate = JObject.Parse(data.ToString());
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if (dataUpdate["lastUpdated"] != null)
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{ //lastUpdated is in ms
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Int32 lastUpdatedUnixTime = (Int32)(dataUpdate["lastUpdated"].ToObject<Int64>() / 1000);
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lastDataUpdate = UnixTimeStampToDateTime(lastUpdatedUnixTime);
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Logger.InfoFormat("Last data update reset to {0}", lastDataUpdate);
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}
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if (dataUpdate["sgvs"] != null)
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{
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var sgvs = dataUpdate["sgvs"].Children();
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var newestSSgv =
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sgvs.Where(sgv => sgv["mills"] != null).OrderByDescending(sgv => sgv["mills"].Value<Int64>()).First();
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Int64 sgvReadTime = newestSSgv["mills"].Value<Int64>();
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DateTime reading = UnixTimeStampToDateTime(sgvReadTime / 1000);;
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if (reading > lastSgvReading)
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lastSgvReading = reading;
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if(newestSSgv["mgdl"] != null)
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Logger.InfoFormat("New sgv read of {0} mg/dl on {1}", newestSSgv["mgdl"], lastSgvReading);
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}
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}
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protected virtual void OnSocketError(object error)
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{
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//Socket.Close();
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Logger.InfoFormat("Socket Error: {0}", error);
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if (SocketError != null)
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SocketError(error);
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}
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protected virtual void OnAlarm(object alarm)
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{
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Logger.InfoFormat("Alarm: {0}", alarm);
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if (Alarm != null)
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Alarm(alarm);
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}
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protected virtual void OnUrgentAlarm(object alarm)
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{
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Logger.InfoFormat("Urgent Alarm: {0}", alarm);
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if (UrgentAlarm != null)
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UrgentAlarm(alarm);
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}
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protected virtual void OnClearAlarm(object alarm)
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{
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Logger.InfoFormat("Clear Alarm: {0}", alarm);
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if (ClearAlarm != null)
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ClearAlarm(alarm);
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}
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protected virtual void OnStaleDataAlarm()
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{
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if (StaleDataAlarm != null)
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StaleDataAlarm();
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}
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protected void ResetManagerAndConnect()
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{
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//, DisablePing = true, Transports = new List<string>() { "polling" }
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Options options;
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options = new IO.Options();
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Manager = new Manager(new Uri(NightscoutAlertConfiguration.NightscoutBaseURL), options);
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Socket = Manager.Socket("/"); //IO.Socket(configuration.NightscoutBaseURL, options);
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}
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private void HeartbeatThread()
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{
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while (true)
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{
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//30 minutes - (currentTime - lastDataUpdate)
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const double millisecondsToSleep = (5*60*1000); //(30*60*1000) - (DateTime.Now - lastDataUpdate).TotalMilliseconds;
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Thread.Sleep((Int32)millisecondsToSleep);
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if ((DateTime.Now - lastDataUpdate).TotalMinutes >= 20)
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{ //forcefully reset data connection
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Logger.Info("Data update timeout, closing socket");
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Manager.EngineSocket.Close();
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lastDataUpdate = DateTime.Now;
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}
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if ((DateTime.Now - lastSgvReading).TotalMinutes >= 30)
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{ //Stale data alarm
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OnStaleDataAlarm();
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Logger.Info("Data stale alarm");
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lastSgvReading = DateTime.Now;
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}
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}
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}
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private void PrepareSocketEvents()
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{
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Socket.On(Socket.EVENT_CONNECT, OnConnect);
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Socket.On(Socket.EVENT_ERROR, OnSocketError);
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Socket.On("dataUpdate", OnDataUpdate);
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Socket.On("alarm", OnAlarm);
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Socket.On("urgent_alarm", OnUrgentAlarm);
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Socket.On("clear_alarm", OnClearAlarm);
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Manager.On(Manager.EVENT_CONNECT_ERROR, (err) => Logger.InfoFormat("EVENT_CONNECT_ERROR: {0}",err));
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Manager.On(Manager.EVENT_ERROR, (err) => Logger.InfoFormat("EVENT_ERROR: {0}", err));
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Manager.On(Manager.EVENT_RECONNECT_ERROR, (err) => Logger.InfoFormat("EVENT_RECONNECT_ERROR: {0}", err));
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Manager.On(Manager.EVENT_RECONNECT_FAILED, () => Logger.Info("EVENT_RECONNECT_FAILED"));
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Manager.On(Manager.EVENT_CLOSE, (reason) => Logger.InfoFormat("EVENT_CLOSE: {0}", reason));
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Task.Factory.StartNew(HeartbeatThread,TaskCreationOptions.LongRunning);
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}
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private void ButtonSource_ButtonStateChange(bool obj)
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{
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if (obj)
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{ //Button pressed, STOP active alerts
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ClearAlerts();
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}
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}
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private static DateTime UnixTimeStampToDateTime(double unixTimeStamp)
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{
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// Unix timestamp is seconds past epoch
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System.DateTime dtDateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, System.DateTimeKind.Utc);
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dtDateTime = dtDateTime.AddSeconds(unixTimeStamp).ToLocalTime();
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return dtDateTime;
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}
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}
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}
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