using System;
using System.IO;

public class fluorconverter
{
    //Averages the multiple scans from Hitachi F-2500 FL Spectrophotometer
    //V.V. 03/01/2011. vvostri@gmail.com
    public static void Main()
    {
        string filename;

        do
        {
            Console.WriteLine("Enter file name");
            filename = Console.ReadLine();

            if (File.Exists(filename))
            {
                StreamReader streamvariable = File.OpenText(filename);
                string lineinfile;
                int Nscans = 0;
                int Ndata = 0;

                while ((lineinfile = streamvariable.ReadLine()) != null)
                {
                    if (lineinfile == "nm\tData")
                    {
                        Nscans = Nscans + 1;
                        while ((lineinfile = streamvariable.ReadLine()) != null && (lineinfile.Substring(0, 1)) != "S")
                        {
                            Ndata = Ndata + 1;
                        }
                    }
                }
                Ndata = Ndata / Nscans;
                streamvariable.Close();
                double[,] data = new double[Nscans + 3, Ndata];
                Nscans = 0;

                streamvariable = File.OpenText(filename);
                while ((lineinfile = streamvariable.ReadLine()) != null)
                {
                    if (lineinfile == "nm\tData")
                    {
                        Nscans = Nscans + 1;
                        Ndata = 0;

                        while ((lineinfile = streamvariable.ReadLine()) != null && (lineinfile.Substring(0, 1)) != "S")
                        {
                            data[0, Ndata] = Convert.ToDouble(lineinfile.Substring(0, lineinfile.LastIndexOf("\t")));

                            if ((lineinfile.Substring(lineinfile.IndexOf("\t") + 1, lineinfile.Length - lineinfile.LastIndexOf("\t") - 1)) == "*****")
                            {
                                data[Nscans, Ndata] = 10000;
                            }
                            else
                            {
                                data[Nscans, Ndata] = Convert.ToDouble(lineinfile.Substring(lineinfile.IndexOf("\t") + 1, lineinfile.Length - lineinfile.LastIndexOf("\t") - 1));
                            }

                            Ndata = Ndata + 1;
                        }
                    }
                }
                streamvariable.Close();

                double max = 0;
                for (int counter = 0; counter != Ndata; counter = counter + 1)
                {
                    for (int counter2 = 0; counter2 != Nscans; counter2 = counter2 + 1)
                    {
                        data[Nscans + 1, counter] = data[Nscans + 1, counter] + data[counter2 + 1, counter];
                        double temp = data[Nscans + 1, counter];
                    }
                    data[Nscans + 1, counter] = data[Nscans + 1, counter] / Nscans;
                    if (data[Nscans + 1, counter] > max)
                    {
                        max = data[Nscans + 1, counter];
                    }
                }

                for (int counter = 0; counter != Ndata; counter = counter + 1)
                {
                    data[Nscans + 2, counter] = data[Nscans + 1, counter] / max;
                }

                FileStream file = new FileStream(filename + ".csv", FileMode.Create, FileAccess.Write);
                StreamWriter sw = new StreamWriter(file);
                {
                    for (int counter = 0; counter != Ndata; counter = counter + 1)
                    {
                        sw.Write(data[0, counter]);
                        sw.Write(",");
                        sw.Write(data[Nscans + 1, counter]);
                        sw.Write(",");
                        sw.Write(data[Nscans + 2, counter]);
                        sw.Write("\r\n");
                    }
                }
                sw.Close();
                file.Close();
                Console.WriteLine("File {0} has been converted\n", filename);
            }

            else
            {
                Console.WriteLine("File {0} not found\n", filename);
            }

        } while (filename != "quit");
    }
}