//
//  Program.cs
//
//  Author:
//       Michael Becker <alcexhim@gmail.com>
//
//  Copyright (c) 2019 
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Text;
using UniversalEditor.ObjectModels.Text.Formatted.Items;

namespace UniversalEditor.ConsoleApplication
{
	class MainClass
	{
		public static void Main(string[] args)
		{
			if (args.Length > 0)
			{
				if (args[0] == "--generate-associations")
				{
					string assocs = null;
					if (args.Length > 1)
					{
						if (args[1] == "--reg")
						{
							assocs = GenerateAssociationsREG();
						}
					}

					if (assocs == null)
						assocs = GenerateAssociations();

					Console.WriteLine(assocs);
				}
				else if (args[0] == "--update-associations")
				{
					if (System.Environment.OSVersion.Platform == PlatformID.Unix)
					{
						string filename = "/usr/share/mime/packages/universal-editor.xml";
						string assocs = GenerateAssociations();
						try
						{
							System.IO.File.WriteAllText(filename, assocs);
							System.Diagnostics.Process.Start("update-mime-database", "/usr/share/mime");
							System.Environment.Exit(0);
						}
						catch (UnauthorizedAccessException ex)
						{
							Console.WriteLine("ue: {0}: Permission denied", filename);
							System.Environment.Exit(1);
						}
					}
					else if (System.Environment.OSVersion.Platform == PlatformID.Win32NT)
					{

					}
				}
				else if (args[0] == "--list-associations")
				{
					// wake up the UE
					DataFormatReference[] dfrs = UniversalEditor.Common.Reflection.GetAvailableDataFormats();

					Association[] assocs = Association.GetAllAssociations();
					foreach (Association assoc in assocs)
					{
						Console.WriteLine(assoc.ToString());
					}
					return;
				}
				else if (args[0] == "--list-dataformats")
				{
					DataFormatReference[] dfrs = UniversalEditor.Common.Reflection.GetAvailableDataFormats();
					foreach (DataFormatReference dfr in dfrs)
					{
						Console.WriteLine(dfr.ToString());
					}
					return;
				}
				else if (args[0] == "--find-checksum")
				{
					if (args.Length > 0)
					{
						Console.WriteLine("looking for {0}", args[1]);
						Checksum.Modules.Adler32.Adler32 adlr = new Checksum.Modules.Adler32.Adler32();

						string[] files = new string[args.Length - 2];
						for (int i = 2; i <args.Length; i++)
						{
							files[i - 2] = args[i];
						}

						Type[] types = MBS.Framework.Reflection.GetAvailableTypes(new Type[] { typeof(Checksum.ChecksumModule) });
						for (int i = 0; i < types.Length; i++)
						{
							Checksum.ChecksumModule module = (types[i].Assembly.CreateInstance(types[i].FullName) as Checksum.ChecksumModule);
							if (module == null) continue;

							Console.WriteLine("=== {0} ===", module.GetType().Name);

							for (int j = 0; j < files.Length; j++)
							{
								Console.Write(System.IO.Path.GetFileName(files[j]).PadRight(30));

								if (System.IO.File.Exists(files[j]))
								{
									long calc = module.Calculate(System.IO.File.ReadAllBytes(files[j]));
									calc = (int)(calc);
									Console.Write(calc.ToString());
								}
								else
								{
									Console.Write("NOT FOUND");
								}
								// Console.Write(calc.ToString("x"));
								Console.WriteLine();
							}
							Console.WriteLine();
						}
					}
				}
			}

			return;

			System.IO.MemoryStream ms = new System.IO.MemoryStream();
			System.IO.Stream st = Console.OpenStandardInput();
			System.IO.Stream stout = Console.OpenStandardOutput();

			while (true)
			{
				byte b = (byte) st.ReadByte();
				if (b == 0xFF) break;

				ms.WriteByte(b);
			}

			UniversalEditor.DataFormats.Text.Formatted.RichText.RTFDataFormat rtf = new DataFormats.Text.Formatted.RichText.RTFDataFormat();
			UniversalEditor.ObjectModels.Text.Formatted.FormattedTextObjectModel ftom = new ObjectModels.Text.Formatted.FormattedTextObjectModel();

			FormattedTextItemParagraph p =	new FormattedTextItemParagraph();
			FormattedTextItemLiteral lit = new FormattedTextItemLiteral();
			lit.Text = System.Text.Encoding.UTF8.GetString(ms.ToArray());
			p.Items.Add(lit);

			ftom.Items.Add(p);


			UniversalEditor.Accessors.MemoryAccessor ma = new Accessors.MemoryAccessor();
			UniversalEditor.Document.Save(ftom, rtf, ma);

				byte[] output = ma.ToArray();
			stout.Write(output, 0, output.Length);
		}

		private static string GenerateAssociations()
		{
			StringBuilder sb = new StringBuilder();
			sb.AppendLine("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
			sb.AppendLine("<mime-info xmlns=\"http://www.freedesktop.org/standards/shared-mime-info\">");
			DataFormatReference[] dfrs = UniversalEditor.Common.Reflection.GetAvailableDataFormats();

			Association[] assocs = Association.GetAllAssociations();
			for (int i = 0; i < assocs.Length; i++)
			{
				for (int j = 0; j < assocs[i].Filters.Count; j++)
				{
					string mimetype = String.Format("application/x-universaleditor-a{0}f{1}", i, j);
					if (assocs[i].Filters[j].ContentType != null)
					{
						mimetype = assocs[i].Filters[j].ContentType;
					}
					sb.AppendLine(String.Format("\t<mime-type type=\"{0}\">", mimetype));
					sb.AppendLine(String.Format("\t\t<comment>{0}</comment>", assocs[i].Filters[j].Title));

					// Console.Write("registering '{0}' extensions... ", assocs[i].Filters[j].Title);
					for (int k = 0; k < assocs[i].Filters[j].FileNameFilters.Count; k++)
					{
						sb.AppendLine(String.Format("\t\t<glob pattern=\"{0}\" />", assocs[i].Filters[j].FileNameFilters[k]));
					}
					sb.AppendLine("\t</mime-type>");
				}
			}
			sb.Append("</mime-info>");
			return sb.ToString();
		}
		private static string GenerateAssociationsREG()
		{
			StringBuilder sb = new StringBuilder();
			sb.AppendLine("Windows Registry Editor Version 5.00");

			DataFormatReference[] dfrs = UniversalEditor.Common.Reflection.GetAvailableDataFormats();

			Association[] assocs = Association.GetAllAssociations();
			for (int i = 0; i < assocs.Length; i++)
			{
				for (int j = 0; j < assocs[i].Filters.Count; j++)
				{
					for (int k = 0; k < assocs[i].Filters[j].FileNameFilters.Count; k++)
					{
						string ext = assocs[i].Filters[j].FileNameFilters[k];
						if (ext.StartsWith("*."))
						{
							ext = ext.Substring(1);
						}

						sb.AppendLine(String.Format("[HKEY_CLASSES_ROOT\\{0}{1}]", "UniversalEditor", ext));

						sb.AppendLine(String.Format("[HKEY_CLASSES_ROOT\\{0}{1}\\DefaultIcon]", "UniversalEditor", ext));
						sb.AppendLine("@=\"universal-editor.ico\"");

						sb.AppendLine(String.Format("[HKEY_CLASSES_ROOT\\{0}{1}\\Shell\\Open\\command]", "UniversalEditor", ext));
						sb.AppendLine("@=UniversalEditor.exe \"%1\"");

						sb.AppendLine(String.Format("[HKEY_CLASSES_ROOT\\{0}]", ext));
						sb.AppendLine(String.Format("@=\"{0}{1}\"", "UniversalEditor", ext));
					}
				}
			}
			return sb.ToString();
		}
	}
}