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/*
* MIT License
*
* Copyright (c) 2017 Michael VanOverbeek and ShiftOS devs
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;
using static ShiftOS.Objects.ShiftFS.Utils;
namespace ShiftOS.Engine
{
/// <summary>
/// Provides basic high-level access to the ShiftOS filesystem engine (ShiftFS) and File Skimmer.
/// </summary>
public static class FileSkimmerBackend
{
private static IFileSkimmer _fs = null;
/// <summary>
/// Opens a file from the specified ShiftFS path.
/// </summary>
/// <param name="path">The path to open.</param>
/// <returns>Whether or not the file could be opened.</returns>
public static bool OpenFile(string path)
{
if (!Objects.ShiftFS.Utils.FileExists(path))
throw new System.IO.FileNotFoundException("ShiftFS could not find the file specified.", path);
foreach (var type in ReflectMan.Types.Where(x => x.GetInterfaces().Contains(typeof(IFileHandler)) && Shiftorium.UpgradeAttributesUnlocked(x)))
{
foreach(FileHandlerAttribute attrib in type.GetCustomAttributes(false).Where(x => x is FileHandlerAttribute))
{
if (path.ToLower().EndsWith(attrib.Extension))
{
var obj = (IFileHandler)Activator.CreateInstance(type);
obj.OpenFile(path);
return true;
}
}
}
return false;
}
public static FileType GetFileType(string path)
{
if (path == "__upone")
return FileType.UpOne;
if (DirectoryExists(path))
{
if (Mounts.Contains(GetDirectoryInfo(path)))
return FileType.Mount;
else
return FileType.Directory;
}
string ext = path.Split('.')[path.Split('.').Length - 1];
switch (ext)
{
case "txt":
return FileType.TextFile;
case "pic":
case "png":
case "jpg":
case "bmp":
case "gif":
return FileType.Image;
case "py":
return FileType.Python;
case "mfs":
return FileType.Filesystem;
case "lua":
return FileType.Lua;
case "skn":
return FileType.Skin;
case "json":
return FileType.JSON;
case "sft":
//No, not "sex" - ShiftOS EXecutable. xD
case "sex":
return FileType.Executable;
case "cf":
return FileType.CommandFormat;
default:
return FileType.Unknown;
}
}
/// <summary>
/// Opens the specified directory path inside a new File Skimmer frontend.
/// </summary>
/// <param name="path">The path to open</param>
public static void OpenDirectory(string path)
{
_fs.OpenDirectory(path);
}
/// <summary>
/// Allows you to prompt the user to select a file, either to open or save, and filter the types of files they can select.
/// </summary>
/// <param name="types">An array of file extensions that the user may select.</param>
/// <param name="style">The UI style of the new file select frontend.</param>
/// <param name="callback">The Action that is called when the user selects a file. The string argument provided by this call is the path of the file they selected.</param>
public static void GetFile(string[] types, FileOpenerStyle style, Action<string> callback)
{
_fs.GetPath(types, style, callback);
}
/// <summary>
/// Initiates the file skimmer backend with a new middle-end layer.
/// </summary>
/// <param name="fs">The middle-end IFileSkimmer that'll do all the work.</param>
/// <remarks>Without a middle-end, the File Skimmer will not function properly.</remarks>
public static void Init(IFileSkimmer fs)
{
_fs = fs;
}
public static string GetFileExtension(FileType fileType)
{
return _fs.GetFileExtension(fileType);
}
}
/// <summary>
/// Provides primary middle-end functions allowing the File Skimmer API to talk with your frontend.
/// </summary>
public interface IFileSkimmer
{
void GetPath(string[] filetypes, FileOpenerStyle style, Action<string> callback);
void OpenDirectory(string path);
string GetFileExtension(FileType fileType);
}
/// <summary>
/// Different types of UI styles for File Openers.
/// </summary>
public enum FileOpenerStyle
{
Open,
Save
}
/// <summary>
/// Recognized file types within the ShiftFS engine.
/// </summary>
public enum FileType
{
TextFile,
Directory,
Mount,
UpOne,
Image,
Skin,
JSON,
Executable,
Lua,
Python,
Filesystem,
CommandFormat,
Unknown
}
}
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