//   SparkleShare, an instant update workflow to Git.
//   Copyright (C) 2010  Hylke Bons <hylkebons@gmail.com>
//
//   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 Mono.Unix;
using SparkleLib;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;

namespace SparkleShare {

	public class SparkleLinController : SparkleController {

		public SparkleLinController () : base ()
		{

		}


		// Creates a .desktop entry in autostart folder to
		// start SparkleShare automatically at login
		public override void EnableSystemAutostart ()
		{
		
			string autostart_path = SparkleHelpers.CombineMore (SparklePaths.HomePath, ".config", "autostart");
			string desktopfile_path = SparkleHelpers.CombineMore (autostart_path, "sparkleshare.desktop");

			if (!File.Exists (desktopfile_path)) {

				if (!Directory.Exists (autostart_path))
					Directory.CreateDirectory (autostart_path);

					TextWriter writer = new StreamWriter (desktopfile_path);
					writer.WriteLine ("[Desktop Entry]\n" +
					                  "Type=Application\n" +
					                  "Name=SparkleShare\n" +
					                  "Exec=sparkleshare start\n" +
					                  "Icon=folder-sparkleshare\n" +
					                  "Terminal=false\n" +
					                  "X-GNOME-Autostart-enabled=true\n" +
					                  "Categories=Network");
					writer.Close ();

					// Give the launcher the right permissions so it can be launched by the user
					UnixFileInfo file_info = new UnixFileInfo (desktopfile_path);
					file_info.Create (FileAccessPermissions.UserReadWriteExecute);

					SparkleHelpers.DebugInfo ("Controller", "Created: " + desktopfile_path);

				}

		}
		

		// Installs a launcher so the user can launch SparkleShare
		// from the Internet category if needed
		public override void InstallLauncher ()
		{
		
			string apps_path = SparkleHelpers.CombineMore (SparklePaths.HomePath, ".local", "share", "applications");
			string desktopfile_path = SparkleHelpers.CombineMore (apps_path, "sparkleshare.desktop");

			if (!File.Exists (desktopfile_path)) {

				if (!Directory.Exists (apps_path))
					Directory.CreateDirectory (apps_path);

				TextWriter writer = new StreamWriter (desktopfile_path);
				writer.WriteLine ("[Desktop Entry]\n" +
				                  "Type=Application\n" +
				                  "Name=SparkleShare\n" +
				                  "Comment=Share documents\n" +
				                  "Exec=sparkleshare start\n" +
				                  "Icon=folder-sparkleshare\n" +
				                  "Terminal=false\n" +
				                  "Categories=Network;");
				writer.Close ();

				// Give the launcher the right permissions so it can be launched by the user
				UnixFileInfo file_info = new UnixFileInfo (desktopfile_path);
				file_info.FileAccessPermissions = FileAccessPermissions.UserReadWriteExecute;

				SparkleHelpers.DebugInfo ("Controller", "Created '" + desktopfile_path + "'");

			}

		}


		// Adds the SparkleShare folder to the user's
		// list of bookmarked places
		public override void AddToBookmarks ()
		{

			string bookmarks_file_path   = Path.Combine (SparklePaths.HomePath, ".gtk-bookmarks");
			string sparkleshare_bookmark = "file://" + SparklePaths.SparklePath + " SparkleShare";

			if (File.Exists (bookmarks_file_path)) {

				StreamReader reader = new StreamReader (bookmarks_file_path);
				string bookmarks = reader.ReadToEnd ();
				reader.Close ();

				if (!bookmarks.Contains (sparkleshare_bookmark)) {

					TextWriter writer = File.AppendText (bookmarks_file_path);
					writer.WriteLine ("file://" + SparklePaths.SparklePath + " SparkleShare");
					writer.Close ();

				}

			} else {

				StreamWriter writer = new StreamWriter (bookmarks_file_path);
				writer.WriteLine ("file://" + SparklePaths.SparklePath + " SparkleShare");
				writer.Close ();

			}

		}


		// Creates the SparkleShare folder in the user's home folder
		public override bool CreateSparkleShareFolder ()
		{

			if (!Directory.Exists (SparklePaths.SparklePath)) {
		
				Directory.CreateDirectory (SparklePaths.SparklePath);
				SparkleHelpers.DebugInfo ("Controller", "Created '" + SparklePaths.SparklePath + "'");

				string icon_file_path = SparkleHelpers.CombineMore (Defines.DATAROOTDIR, "icons", "hicolor",
					"48x48", "apps", "folder-sparkleshare.png");

				string gvfs_command_path = SparkleHelpers.CombineMore (Path.VolumeSeparatorChar.ToString (),
					"usr", "bin", "gvfs-set-attribute");

				// Add a special icon to the SparkleShare folder
				if (File.Exists (gvfs_command_path)) {

					Process process = new Process ();

					process.StartInfo.RedirectStandardOutput = true;
					process.StartInfo.UseShellExecute = false;

					process.StartInfo.FileName  = "gvfs-set-attribute";
					process.StartInfo.Arguments = SparklePaths.SparklePath + " metadata::custom-icon " +
							                      "file://" + icon_file_path;
					process.Start ();

				}

				return true;

			}

			return false;

		}
		

		public override string EventLogHTML {
			
			get {
				
				string path = SparkleHelpers.CombineMore (Defines.PREFIX,
					"share", "sparkleshare", "html", "event-log.html");
			
				return String.Join (Environment.NewLine, File.ReadAllLines (path));

			}
			
		}

		
		public override string DayEntryHTML {
			
			get {
				
				string path = SparkleHelpers.CombineMore (Defines.PREFIX,
					"share", "sparkleshare", "html", "day-entry.html");
			
				return String.Join (Environment.NewLine, File.ReadAllLines (path));
			
			}
			
		}

		
		public override string EventEntryHTML {
			
			get {
				
				string path = SparkleHelpers.CombineMore (Defines.PREFIX,
					"share", "sparkleshare", "html", "event-entry.html");
			
				return String.Join (Environment.NewLine, File.ReadAllLines (path));
			
			}
			
		}

			
		public override void OpenSparkleShareFolder (string subfolder)
		{

			string open_command_path = SparkleHelpers.CombineMore (Path.VolumeSeparatorChar.ToString (),
				"usr", "bin", "xdg-open");

			if (!File.Exists (open_command_path))
				return;

			string folder = SparkleHelpers.CombineMore (SparklePaths.SparklePath, subfolder);

			Process process = new Process ();
			process.StartInfo.Arguments = folder.Replace (" ", "\\ "); // Escape space-characters
			process.StartInfo.FileName  = "xdg-open";
			process.Start ();
			
		}

	}

}