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

namespace PEP_Tool
{
    public static class LogFile
    {
        public static void WriteLine(string Text)
        {
            Debug.WriteLine(DateTime.Now + "   v" + Properties.Settings.Default.Version + "   " + Text);
            try
            {
                byte[] t = Encoding.ASCII.GetBytes(Text);
                if (!Directory.Exists(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"))) Directory.CreateDirectory(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"));

                //using (var fs = Writer.WaitForFile(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt", FileMode.Append, FileAccess.Write, FileShare.ReadWrite | FileShare.Delete))
                //{
                //    fs.WriteAsync(t, (int)fs.Length, t.Count());
                //}

                WaitForFile(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt", $"{DateTime.Now}   v{Properties.Settings.Default.Version}   {Environment.MachineName}  {Environment.UserDomainName}:{Environment.NewLine}{Environment.NewLine}   {Text.ToString()}{Environment.NewLine}{Environment.NewLine}");
            }
            catch (Exception)
            {
            }
        }

        public static void WriteLine(double Text)
        {
            Debug.WriteLine(DateTime.Now + "   v" + Properties.Settings.Default.Version + "   " + Text);
            try
            {
                if (!Directory.Exists(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"))) Directory.CreateDirectory(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"));
                WaitForFile(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt", $"{DateTime.Now}   v{Properties.Settings.Default.Version}   {Environment.MachineName}  {Environment.UserDomainName}:{Environment.NewLine}{Environment.NewLine}   {Text.ToString()}{Environment.NewLine}{Environment.NewLine}");
            }
            catch (Exception)
            {
            }
        }

        public static void WriteLine(int Text)
        {
            Debug.WriteLine(DateTime.Now + "   v" + Properties.Settings.Default.Version + "   " + Text);
            try
            {
                if (!Directory.Exists(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"))) Directory.CreateDirectory(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"));
                WaitForFile(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt", $"{DateTime.Now}   v{Properties.Settings.Default.Version}   {Environment.MachineName}  {Environment.UserDomainName}:{Environment.NewLine}{Environment.NewLine}   {Text.ToString()}{Environment.NewLine}{Environment.NewLine}");
            }
            catch (Exception)
            {
            }
        }

        public static void WriteLine(bool Text)
        {
            Debug.WriteLine(DateTime.Now + "   v" + Properties.Settings.Default.Version + "   " + Text);
            try
            {
                if (!Directory.Exists(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"))) Directory.CreateDirectory(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"));
                WaitForFile(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt", $"{DateTime.Now}   v{Properties.Settings.Default.Version}   {Environment.MachineName}  {Environment.UserDomainName}:{Environment.NewLine}{Environment.NewLine}   {Text.ToString()}{Environment.NewLine}{Environment.NewLine}");
            }
            catch (Exception)
            {
            }
        }

        public static void WriteLine(Exception Text)
        {
            Debug.WriteLine(DateTime.Now + "   v" + Properties.Settings.Default.Version + "   " + Text);
            try
            {
                if (!Directory.Exists(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"))) Directory.CreateDirectory(Path.GetDirectoryName(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt"));
                WaitForFile(@"\\bku.db.de\db\DB_006\GLW_11\ICE-Fertigung\M2\Personaleinsatzplanung\Log\Log.txt", $"{DateTime.Now}   v{Properties.Settings.Default.Version}   {Environment.MachineName}  {Environment.UserDomainName}:{Environment.NewLine}{Environment.NewLine}   {Text.ToString()}{Environment.NewLine}{Environment.NewLine}");
            }
            catch (Exception)
            {
            }
        }

        public static bool IsFileReady(string filename)
        {
            // If the file can be opened for exclusive access it means that the file
            // is no longer locked by another process.
            try
            {
                using (FileStream inputStream = File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.None))
                    return inputStream.Length > 0;
            }
            catch (Exception)
            {
                return false;
            }
        }


        public static void WaitForFile(string filename, string Text)
        {
            //This will lock the execution until the file is ready
            //TODO: Add some logic to make it async and cancelable
            while (!IsFileReady(filename)) { Task.Delay(20); }
            try
            {
                File.AppendAllText(filename, Text);
            }
            catch (Exception)
            {
                WaitForFile(filename, Text);
            }
        }
    }
}