using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Threading.Tasks;
using MediaBrowser.Controller.Resolvers;
using MediaBrowser.Controller.Library;
namespace MediaBrowser.Controller.IO
{
public static class FileSystemHelper
{
///
/// Transforms shortcuts into their actual paths and filters out items that should be ignored
///
public static ItemResolveEventArgs FilterChildFileSystemEntries(ItemResolveEventArgs args, bool flattenShortcuts)
{
List returnChildren = new List();
List resolvedShortcuts = new List();
foreach (var file in args.FileSystemChildren)
{
// If it's a shortcut, resolve it
if (Shortcut.IsShortcut(file.Path))
{
string newPath = Shortcut.ResolveShortcut(file.Path);
WIN32_FIND_DATA newPathData = FileData.GetFileData(newPath);
// Find out if the shortcut is pointing to a directory or file
if (newPathData.IsDirectory)
{
// add to our physical locations
args.AdditionalLocations.Add(newPath);
// If we're flattening then get the shortcut's children
if (flattenShortcuts)
{
returnChildren.Add(file);
ItemResolveEventArgs newArgs = new ItemResolveEventArgs()
{
FileSystemChildren = FileData.GetFileSystemEntries(newPath, "*").ToArray()
};
resolvedShortcuts.AddRange(FilterChildFileSystemEntries(newArgs, false).FileSystemChildren);
}
else
{
returnChildren.Add(newPathData);
}
}
else
{
returnChildren.Add(newPathData);
}
}
else
{
//not a shortcut check to see if we should filter it out
if (EntityResolutionHelper.ShouldResolvePath(file))
{
returnChildren.Add(file);
}
else
{
//filtered - see if it is one of our "indicator" folders and mark it now - no reason to search for it again
args.IsBDFolder |= file.cFileName.Equals("bdmv", StringComparison.OrdinalIgnoreCase);
args.IsDVDFolder |= file.cFileName.Equals("video_ts", StringComparison.OrdinalIgnoreCase);
args.IsHDDVDFolder |= file.cFileName.Equals("hvdvd_ts", StringComparison.OrdinalIgnoreCase);
//and check to see if it is a metadata folder and collect contents now if so
if (IsMetadataFolder(file.cFileName))
{
args.MetadataFiles = Directory.GetFiles(Path.Combine(args.Path, "metadata"), "*", SearchOption.TopDirectoryOnly);
}
}
}
}
if (resolvedShortcuts.Count > 0)
{
resolvedShortcuts.InsertRange(0, returnChildren);
args.FileSystemChildren = resolvedShortcuts.ToArray();
}
else
{
args.FileSystemChildren = returnChildren.ToArray();
}
return args;
}
public static bool IsMetadataFolder(string path)
{
return path.TrimEnd('\\').EndsWith("metadata", StringComparison.OrdinalIgnoreCase);
}
public static bool IsVideoFile(string path)
{
string extension = System.IO.Path.GetExtension(path).ToLower();
switch (extension)
{
case ".mkv":
case ".m2ts":
case ".iso":
case ".ts":
case ".rmvb":
case ".mov":
case ".avi":
case ".mpg":
case ".mpeg":
case ".wmv":
case ".mp4":
case ".divx":
case ".dvr-ms":
case ".wtv":
case ".ogm":
case ".ogv":
case ".asf":
case ".m4v":
case ".flv":
case ".f4v":
case ".3gp":
return true;
default:
return false;
}
}
}
}