using System;
using System.IO;
using System.Text;
using System.Collections;

using Microsoft.SPOT;
using Microsoft.SPOT.IO;

using GHI.Premium.IO;

namespace MFConsoleApplication1
{
    public static class EngrLog
    {
        public static StreamWriter engrLogWriter;
        //public static StreamReader engrLogReader;
        public static String engrLogFilename;
        public static PersistentStorage sdCard = new PersistentStorage("SD");

        private static String[] dataLabels = { "Date", "Time", "Type", "Comment", 
                                                "velocitySetPoint", "pressureSetPoint", "pressureDBar", "lastPressure",
                                                "velocity", "y1", "y2", "v", "u", "uCPS", "I", "bellowsPosition" };
        private static StringBuilder header = new StringBuilder("");

        public static void initEngrLog(String initString)
        {
            sdCard.MountFileSystem();

            VolumeInfo sdVol = new VolumeInfo("SD");
            engrLogFilename = sdVol.RootDirectory + "\\engrLog" + DateTime.Now.ToString("yyyyMMMdd" + "T" + "HHmmss");
            engrLogWriter = new StreamWriter(engrLogFilename, true);

            for (int i = 0; i < dataLabels.Length; i++)
            {
                if (i != 1)
                {
                    header.Append(dataLabels[i]);
                    header.Append("\t");
                }
                else
                {
                    header.Append(dataLabels[i]);
                    header.Append(" (local)\t");
                }
            }

            writeFile(header.ToString());
  
            writeLog(initString);
            writeLog(Program.DateTimeNowMilliSeconds() + "Type\tSystem Data\tComment\tVolume Name = " + sdVol.Name.ToString());
            writeLog(Program.DateTimeNowMilliSeconds() + "Type\tSystem Data\tComment\tVolume Total Size = " + sdVol.TotalSize.ToString());
            writeLog(Program.DateTimeNowMilliSeconds() + "Type\tSystem Data\tComment\tVolume Total Free Space = " + sdVol.TotalFreeSpace.ToString());
            writeLog(Program.DateTimeNowMilliSeconds() + "Type\tSystem Data\tComment\tVolume FileSystem = " + sdVol.FileSystem.ToString());
            writeLog(Program.DateTimeNowMilliSeconds() + "Type\tSystem Data\tComment\tVolume Serial Num = " + sdVol.SerialNumber.ToString());
            writeLog(Program.DateTimeNowMilliSeconds() + "Type\tSystem Data\tComment\tVolume ID = " + sdVol.VolumeID.ToString());
            writeLog(Program.DateTimeNowMilliSeconds() + "Type\tSystem Data\tComment\tVolume Label = " + sdVol.VolumeLabel.ToString());
            writeLog(Program.DateTimeNowMilliSeconds() + "Type\tSystem Data\tComment\tVolume Root Dir = " + sdVol.RootDirectory.ToString());
        }

        public static void writeLog(string logString)
        {
            String fileLogString = "";

            fileLogString = formatLogString(logString);
            writeFile(fileLogString);
        }

        private static string formatLogString(String logString)
        {
          String[] splitString;
            String[] logStringArray = new String[dataLabels.Length];

            splitString = logString.Split('\t');
            int len = splitString.Length;
            for (int i = 0; i < splitString.Length; i++)
            {
                for (int j = 0; j < dataLabels.Length; j++)
                {
                    if (splitString[i] == dataLabels[j])
                        logStringArray[j] = splitString[i + 1];
                }
                i++;
            }

            //String formattedLogString = "";
            StringBuilder formattedLogString = new StringBuilder("");
            for (int i = 0; i < dataLabels.Length; i++)
            {
                //    formattedLogString = formattedLogString + logStringArray[i] + "\t";
                formattedLogString.Append(logStringArray[i]);
                formattedLogString.Append("\t");
            }
            return (formattedLogString.ToString());
        }


        private static void writeFile(String fileString)
        {
            try
            {
                engrLogWriter.WriteLine(fileString);
                engrLogWriter.Flush();
                Debug.Print(fileString);
            }
            catch
            {
                Debug.Print("Engr log file write error");
            }
        }

        public static int uploadData()
        {
            return (0);
        }
    }
}