6 files changed, 395 insertions, 0 deletions
diff --git a/ShiftOS.Engine/ShiftFS/IShiftNode.cs b/ShiftOS.Engine/ShiftFS/IShiftNode.cs
new file mode 100644
index 0000000..f3a1a19
--- /dev/null
+++ b/ShiftOS.Engine/ShiftFS/IShiftNode.cs
@@ -0,0 +1,23 @@
+using System;
+using Whoa;
+
+namespace ShiftOS.Engine.ShiftFS
+{
+	public interface IShiftNode
+	{
+		
+		string Name { get; set; }
+
+		
+		string FullName { get; }
+
+		
+		ShiftDirectory Parent { get; set; }
+
+		
+		ShiftTree Drive { get; }
+
+		
+		Guid Guid { get; }
+	}
+}
+\ No newline at end of file
diff --git a/ShiftOS.Engine/ShiftFS/ShiftDirectory.cs b/ShiftOS.Engine/ShiftFS/ShiftDirectory.cs
new file mode 100644
index 0000000..249738f
--- /dev/null
+++ b/ShiftOS.Engine/ShiftFS/ShiftDirectory.cs
@@ -0,0 +1,89 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using Whoa;
+
+namespace ShiftOS.Engine.ShiftFS
+{
+	[Serializable]
+	public class ShiftDirectory : List<IShiftNode>, IShiftNode
+	{
+		public ShiftDirectory(string name) => Name = name;
+		public ShiftDirectory(string name, ShiftDirectory parent)
+		{
+			Name = name;
+			Parent = parent;
+		}
+
+
+		public IShiftNode this[string name] => this.First(n => string.Equals(n.Name, name, StringComparison.Ordinal));
+
+		
+		public string Name { get; set; }
+
+		public IEnumerable<ShiftFile> Flatten()
+		{
+			foreach (var item in this)
+			{
+				switch (item)
+				{
+					case ShiftFile file:
+						yield return file;
+						break;
+					case ShiftDirectory dir:
+						foreach (var shiftNode in dir.Flatten())
+						{
+							yield return shiftNode;
+						}
+						break;
+				}
+			}
+		}
+
+		public IEnumerable<ShiftDirectory> FlattenFolders()
+		{
+			foreach (var item in this)
+			{
+				if (!(item is ShiftDirectory dir)) continue;
+				yield return dir;
+
+				foreach (var subdir in dir.FlattenFolders())
+				{
+					yield return subdir;
+				}
+			}
+		}
+	 
+		public string FullName
+		{
+			get
+			{
+				var list = new List<string> { Name };
+				var currentNode = Parent;
+				while (currentNode?.Parent != null )
+				{
+					list.Add(currentNode.Name);
+					currentNode = currentNode.Parent;
+				}
+				
+				return Path.Combine(list.Reverse<string>().ToArray());
+			}
+		}
+
+		public ShiftDirectory Parent
+		{
+			get => Drive.FlattenFolders().FirstOrDefault(x => x.Contains(this));
+			set
+			{
+				value.Add(this);
+				Parent?.Remove(this);
+			}
+		}
+
+		public ShiftTree Drive => ShiftFS.Drives.First(d => d.FlattenFolders().Contains(this));
+
+		
+		public Guid Guid { get; } = Guid.NewGuid();
+	}
+}
+\ No newline at end of file
diff --git a/ShiftOS.Engine/ShiftFS/ShiftFS.cs b/ShiftOS.Engine/ShiftFS/ShiftFS.cs
new file mode 100644
index 0000000..de406a7
--- /dev/null
+++ b/ShiftOS.Engine/ShiftFS/ShiftFS.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.Windows.Forms;
+using ShiftOS.Engine.Misc;
+
+namespace ShiftOS.Engine.ShiftFS
+{
+	public static class ShiftFS
+	{
+		static readonly string FilePath = Path.Combine(Environment.CurrentDirectory, "save.bin");
+
+		static readonly FileSystemWatcher _watcher;
+		
+		static readonly BinaryFormatter _formatter = new BinaryFormatter();
+		
+		public static EventList<ShiftTree> Drives { get; private set; } = new EventList<ShiftTree>();
+
+		public static void Save()
+		{
+			using (var fs = File.OpenWrite(FilePath))
+			{
+				//Whoa.Whoa.SerialiseObject(fs, Drives);
+				_formatter.Serialize(fs, Drives);
+			}
+		}
+
+
+		static ShiftFS()
+		{
+			Drives.ItemAdded += (sender, e) => Debug.WriteLine(e.Item.Name + e.Item.Letter);
+			
+			if (!File.Exists(FilePath))
+			{
+				using (File.Create(FilePath))
+				{
+					
+					Drives.Add(new ShiftTree("Local Disk", 'C')
+					{
+						new ShiftDirectory("usr")
+						{
+							//i'll put in extensions later
+							new ShiftFile<string>("stringfile.txt", "THIS IS SECRETEXT")
+						},
+						new ShiftDirectory("libs")
+						{
+							new ShiftFile<string>("thing.dll", "oh no it's not code FACH")
+						}
+
+					});
+				}
+
+				Save();
+
+				MessageBox.Show("Save file created.");
+				Debug.WriteLine("Drives: " + Drives.Count);
+			}
+
+			WatcherOnChanged(null, null);
+			
+			_watcher = new FileSystemWatcher(Environment.CurrentDirectory)
+			{
+				Filter = "save.bin",
+			};
+
+			_watcher.Changed += WatcherOnChanged;
+		}
+
+		static void WatcherOnChanged(object sender, FileSystemEventArgs e)
+		{
+			using (var fs = File.OpenRead(FilePath))
+			{
+				//Drives = Whoa.Whoa.DeserialiseObject<EventList<ShiftTree>>(fs);
+				Drives = (EventList<ShiftTree>) _formatter.Deserialize(fs);
+			}
+		}
+	}
+}
+\ No newline at end of file
diff --git a/ShiftOS.Engine/ShiftFS/ShiftFile.cs b/ShiftOS.Engine/ShiftFS/ShiftFile.cs
new file mode 100644
index 0000000..c8a8ef4
--- /dev/null
+++ b/ShiftOS.Engine/ShiftFS/ShiftFile.cs
@@ -0,0 +1,88 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using Whoa;
+
+namespace ShiftOS.Engine.ShiftFS
+{
+	[Serializable]
+	public class ShiftFile<T> : ShiftFile
+	{
+		public ShiftFile(string name) => Name = name;
+		public ShiftFile(string name, ShiftDirectory directory)
+		{
+			Name = name;
+			Parent = directory;
+		}
+		public ShiftFile(string name, T @object, ShiftDirectory directory)
+		{
+			Name = name;
+			Object = @object;
+			Parent = directory;
+		}
+		public ShiftFile(string name, T @object, ShiftDirectory directory, Bitmap icon)
+		{
+			Name = name;
+			Object = @object;
+			Parent = directory;
+			Icon = icon;
+		}
+		public ShiftFile(string name, T @object)
+		{
+			Name = name;
+			Object = @object;
+		}
+		public ShiftFile(string name, T @object, Bitmap icon)
+		{
+			Name = name;
+			Object = @object;
+			Icon = icon;
+		}
+
+
+
+		public T Object { get; set; }
+	}
+
+	[Serializable]
+	public abstract class ShiftFile : IShiftNode 
+	{
+		public Bitmap Icon { get; set; }
+
+		public string Name { get; set; }
+
+		public string FullName
+		{
+			get
+			{
+				var list = new List<string> { Name };
+				var currentNode = Parent;
+				while (currentNode?.Parent != null)
+				{
+					list.Add(currentNode.Name);
+					currentNode = currentNode.Parent;
+				}
+
+				return Path.Combine(list.Reverse<string>().ToArray()) + "\\";
+			}
+		}
+		
+		public ShiftDirectory Parent
+		{
+			get => Drive.FlattenFolders().FirstOrDefault(x => x.Contains(this));
+			set
+			{
+				value.Add(this);
+				Parent?.Remove(this);
+			}
+		}
+
+		public ShiftTree Drive => ShiftFS.Drives.First(d => d.FlattenFolders().FirstOrDefault(f => f.Contains(this)) != null);
+
+		
+		public Guid Guid { get; } = Guid.NewGuid();
+		
+	}
+}
+\ No newline at end of file
diff --git a/ShiftOS.Engine/ShiftFS/ShiftFileStream.cs b/ShiftOS.Engine/ShiftFS/ShiftFileStream.cs
new file mode 100644
index 0000000..9d81a28
--- /dev/null
+++ b/ShiftOS.Engine/ShiftFS/ShiftFileStream.cs
@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Security.AccessControl;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Win32.SafeHandles;
+
+namespace ShiftOS.Engine.ShiftFS
+{
+	/// <summary>
+	/// To be implemented
+	/// </summary>
+	class ShiftFileStream : Stream
+	{
+		public ShiftFileStream() => throw new NotImplementedException();
+
+		/// <inheritdoc />
+		public override void Flush() => throw new NotImplementedException();
+
+		/// <inheritdoc />
+		public override long Seek(long offset, SeekOrigin origin) => throw new NotImplementedException();
+
+		/// <inheritdoc />
+		public override void SetLength(long value) => throw new NotImplementedException();
+
+		/// <inheritdoc />
+		public override int Read(byte[] buffer, int offset, int count) => throw new NotImplementedException();
+
+		/// <inheritdoc />
+		public override void Write(byte[] buffer, int offset, int count) => throw new NotImplementedException();
+
+		/// <inheritdoc />
+		public override bool CanRead { get; }
+
+		/// <inheritdoc />
+		public override bool CanSeek { get; }
+
+		/// <inheritdoc />
+		public override bool CanWrite { get; }
+
+		/// <inheritdoc />
+		public override long Length { get; }
+
+		/// <inheritdoc />
+		public override long Position { get; set; }
+	}
+}
diff --git a/ShiftOS.Engine/ShiftFS/ShiftTree.cs b/ShiftOS.Engine/ShiftFS/ShiftTree.cs
new file mode 100644
index 0000000..33c300a
--- /dev/null
+++ b/ShiftOS.Engine/ShiftFS/ShiftTree.cs
@@ -0,0 +1,66 @@
+using System;
+using System.Collections.Generic;
+using Whoa;
+
+namespace ShiftOS.Engine.ShiftFS
+{
+	[Serializable]
+	public class ShiftTree : ShiftDirectory, IShiftNode
+	{
+		public ShiftTree(string name, char letter) : base(name)
+		{
+			Name = name;
+			Letter = letter;
+		}
+
+		
+		public new IEnumerable<ShiftFile> Flatten()
+		{
+			foreach (var item in this)
+			{
+				switch (item)
+				{
+					case ShiftFile file:
+						yield return file;
+						break;
+					case ShiftDirectory dir:
+						foreach (var shiftNode in dir.Flatten())
+						{
+							yield return shiftNode;
+						}
+						break;
+				}
+			}
+		}
+
+		public new IEnumerable<ShiftDirectory> FlattenFolders()
+		{
+			foreach (var item in this)
+			{
+				if (!(item is ShiftDirectory dir)) continue;
+				yield return dir;
+				
+				foreach (var subdir in dir.FlattenFolders())
+				{
+					yield return subdir;
+				}
+			}
+		}
+
+		
+		public new string Name { get; set; }
+
+		
+		public char Letter { get; }
+
+		public new string FullName => $@"{Name}:\";
+
+		public new ShiftDirectory Parent
+		{
+			get => null;
+			set => throw new InvalidOperationException("Cannot set parent of ShiftTree");
+		}
+
+		public new ShiftTree Drive => this;
+	}
+}
+\ No newline at end of file