using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;

namespace EdgeTech.SonarComms.Demo
{
    class CReadIniFile
    {
        const string _versionInfo = "$Header: CReadIniFile.cs  Revision:1.7  Thu Apr 19 12:36:20 2012  mps $";
        private string versionInfo;

        public static byte[] ReadFile(string filePath)
        {
            byte[] buffer;
            FileStream fileStream = null;
            if (Utils.doThisPrint(4)) Console.WriteLine("Using initialization file {0}", filePath);
            if (Utils.doThisPrint(5)) Console.WriteLine("---------------------------------------- ");

            try
            {
                fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
                int length = (int)fileStream.Length;  // get file length
                buffer = new byte[length];            // create buffer
                int count;                            // actual number of bytes read
                int sum = 0;                          // total number of bytes read

                // read until Read method returns 0 (end of the stream has been reached)
                while ((count = fileStream.Read(buffer, sum, length - sum)) > 0)
                {
                    sum += count;  // sum is a buffer offset for next reading
                }
            }
            catch (FileNotFoundException)
            {
                if(Utils.doThisPrint(1)) Console.WriteLine("Error: Initialization file {0} not found.  Now exiting.", filePath );
                return null;
            }
            finally
            {
                if(fileStream != null) fileStream.Close();
            }
            return buffer;
        }

        public string getVersionInfo()
        {
            versionInfo = _versionInfo.Remove(0, 9);
            string endStr = " mps $";
            char[] end = endStr.ToCharArray();
            versionInfo = versionInfo.TrimEnd(end);
            return versionInfo;
        }
    }
}