using System;
using System.Threading;
using Microsoft.SPOT;
using GHI.Processor;
using System.Text;

namespace IMULogger
{
       public class Real_Time_Clock
       {
         // Create stringbuilder to save data and time
           private static StringBuilder sbDateTime = new StringBuilder(500);
         
           // create object to read date and time from RTC
           private static DateTime timeNow;

        //----------------------------------------------------------------------------------------------------
        // Setup the RTC 
        //----------------------------------------------------------------------------------------------------
           public static void setupRTC()
           {
               //DateTime DT;
               try
               {
                   // Read the RTC
                   timeNow = RealTimeClock.GetDateTime();
                   Debug.Print("Current Real-time Clock " + timeNow.ToString());
               }
               catch // If the time is not invalid, like day of the month is 40!
               {
                   Debug.Print("Bad time exception");
                   // Set to something!
                   timeNow = new DateTime(2000, 1, 1, 1, 1, 1, 1);
               }
               if (timeNow.Year < 2015)
               {
                   Debug.Print("Bad time value");
                   // Date is wrong! We need to set
                   // .. get time from user or network ands set RTC
                   // Set the time to 06/20/2016 at 11:00:00 in this example
                   timeNow = new DateTime(2016, 06, 20, 00, 00, 00);
                   RealTimeClock.SetDateTime(timeNow);
               }
               // lost after power cycle or reset:
               Microsoft.SPOT.Hardware.Utility.SetLocalTime(timeNow);
               //while (true)
               //{
               //    Debug.Print("System Time: " + DateTime.Now.ToString());
               //    Debug.Print(" RTC Time: " + RealTimeClock.GetDateTime());
               //    Thread.Sleep(1000);
               //}
           }
        //----------------------------------------------------------------------------------------------------
        // Read the RTC
        //----------------------------------------------------------------------------------------------------
        public static StringBuilder readClock()
        {           
             timeNow = DateTime.Now;
             sbDateTime.Clear();
             sbDateTime.Append(timeNow.ToString("dd-MMM-yyyy"));
             sbDateTime.Append("\t");
             sbDateTime.Append(timeNow.ToString("HH:mm:ss.fff"));
             
             
             //Debug.Print(sbWrite.ToString());
             //Debug.Print(sbWrite.Length.ToString());

             return (sbDateTime);
        }      
    }
}