// Media Folder
//
// Douglas Thrift
//
// $Id$

using System;
using System.Collections.Generic;
using System.IO;

public class MediaFolder
{
	public SortedDictionary<string, MediaFile> files { get { return files_; } }
	public SortedDictionary<string, MediaFolder> folders { get { return folders_; } }

	public MediaFolder(DirectoryInfo folder, List<string> extensions)
	{
		foreach (string extension in extensions)
			foreach (FileInfo file in folder.GetFiles("*." + extension))
				files_[file.Name] = new MediaFile(file);

		foreach (DirectoryInfo folder_ in folder.GetDirectories())
			folders_[folder_.Name] = new MediaFolder(folder_, extensions);
	}

	public long Get(string path, out Stream stream)
	{
		char[] slash = { '/' };
		string[] path_ = path.Split(slash, 2, StringSplitOptions.RemoveEmptyEntries);

		MediaFolder folder;

		if (path_.Length == 2 && folders_.TryGetValue(path_[0], out folder))
			return folder.Get(path_[1], out stream);

		MediaFile file;

		if (path_.Length == 1 && files_.TryGetValue(path_[0], out file))
			return file.Get(out stream);

		stream = null;

		return 0;
	}

	private SortedDictionary<string, MediaFile> files_ = new SortedDictionary<string, MediaFile>();
	private SortedDictionary<string, MediaFolder> folders_ = new SortedDictionary<string, MediaFolder>();
}