/// <summary>
/// Prevents a default instance of the <see cref="ITunesDirectoryInfo"/> class from being created.
/// </summary>
/// <param name="parent">The parent directory.</param>
private ITunesDirectoryInfo(ITunesDirectoryInfo parent)
{
this.Parent = parent;
this.files = Enumerable.Empty <IFileInfo>();
this.directories = Enumerable.Empty <ITunesDirectoryInfo>();
this.Exists = true;
}
/// <summary>
/// Prevents a default instance of the <see cref="ITunesDirectoryInfo"/> class from being created.
/// </summary>
/// <param name="parent">The parent directory.</param>
private ITunesDirectoryInfo(ITunesDirectoryInfo parent)
{
this.Parent = parent;
this.files = Enumerable.Empty<IFileInfo>();
this.directories = Enumerable.Empty<ITunesDirectoryInfo>();
this.Exists = true;
}
/// <summary>
/// Maps the specified iTunes playlist to a directory structure.
/// </summary>
/// <param name="playlistName">The playlist.</param>
/// <returns>A directory structure which represents the specified iTunes playlist</returns>
public static IEnumerable<ITunesDirectoryInfo> MapPlaylistToDirectoryStructure(string playlistName)
{
if (String.IsNullOrEmpty(playlistName))
throw new ArgumentException("The playlist name name cannot be null or empty", Reflector.GetMemberName(() => playlistName));
var root = new ITunesDirectoryInfo(playlistName);
var files = new iTunesApp()
.LibrarySource
.Playlists
.ItemByName[playlistName]
.Tracks
.Cast<IITFileOrCDTrack>();
var tracksByArtist = files
.GroupBy(file => file.Artist)
.OrderBy(group => group.Key);
var artistDirectories = new List<ITunesDirectoryInfo>();
foreach (var artistGroup in tracksByArtist)
{
var albumGroups = artistGroup
.GroupBy(track => track.Album);
// The artist name has to be normalized, so that it doesn't contain any characters that are invalid for a path
string artistName = NormalizeArtistOrAlbumName(artistGroup.Key);
var albumDirectories = albumGroups
.Select(album => new { Album = album, AlbumName = NormalizeArtistOrAlbumName(album.Key) })
.Select
(
directory =>
new ITunesDirectoryInfo
(
directory.AlbumName,
directory.Album
.Where(track => track.Location != null)
.Select
(
track => (IFileInfo)new LocalFileInfo(new FileInfo(track.Location))
),
null
)
)
.ToList(); //Execute the query immediately, because a streaming causes weird bugs
var artistDirectory = new ITunesDirectoryInfo(artistName, albumDirectories, root);
foreach (ITunesDirectoryInfo albumDirectory in artistDirectory.GetDirectories())
{
albumDirectory.Parent = artistDirectory;
}
artistDirectories.Add(artistDirectory);
}
return artistDirectories;
}
/// <summary>
/// Initializes a new instance of the <see cref="ITunesDirectoryInfo"/> class.
/// The directory will be the last level of the directory structure and contains the files.
/// </summary>
/// <param name="albumName">The name of the album.</param>
/// <param name="files">The files that are contained in this directory.</param>
/// <param name="parent">The parent.</param>
public ITunesDirectoryInfo(string albumName, IEnumerable <IFileInfo> files, ITunesDirectoryInfo parent)
: this(parent)
{
albumName.ThrowIfNull(() => albumName);
files.ThrowIfNull(() => files);
this.name = albumName;
this.files = files;
}
/// <summary>
/// Initializes a new instance of the <see cref="ITunesDirectoryInfo"/> class.
/// The directory will be the middle level of the directory structure and contains the album directories.
/// </summary>
/// <param name="artistName">The name of the artist.</param>
/// <param name="directories">The directories that are contained in this directory.</param>
/// <param name="parent">The parent.</param>
public ITunesDirectoryInfo(string artistName, IEnumerable<ITunesDirectoryInfo> directories, ITunesDirectoryInfo parent)
: this(parent)
{
artistName.ThrowIfNull(() => artistName);
directories.ThrowIfNull(() => directories);
this.name = artistName;
this.directories = directories;
}
/// <summary>
/// Initializes a new instance of the <see cref="ITunesDirectoryInfo"/> class.
/// The directory will be the last level of the directory structure and contains the files.
/// </summary>
/// <param name="albumName">The name of the album.</param>
/// <param name="files">The files that are contained in this directory.</param>
/// <param name="parent">The parent.</param>
public ITunesDirectoryInfo(string albumName, IEnumerable<IFileInfo> files, ITunesDirectoryInfo parent)
: this(parent)
{
albumName.ThrowIfNull(() => albumName);
files.ThrowIfNull(() => files);
this.name = albumName;
this.files = files;
}
/// <summary>
/// Creates an iTunes directory info which does not exist.
/// </summary>
/// <param name="name">The name of the directory.</param>
/// <param name="parent">The parent directory.</param>
/// <returns>A directory whichs <see cref="Exists"/> property is set to false.</returns>
public static ITunesDirectoryInfo CreateNonExistantDirectoryInfo(string name, ITunesDirectoryInfo parent)
{
name.ThrowIfNull(() => name);
parent.ThrowIfNull(() => parent);
var directory = new ITunesDirectoryInfo(parent)
{
name = name, Exists = false
};
return(directory);
}
/// <summary>
/// Gets the directory info at the specified path.
/// </summary>
/// <param name="path">The path of the directory.</param>
/// <returns>
/// An <see cref="IDirectoryInfo"/> of the directory from the specified path.
/// </returns>
public IDirectoryInfo GetDirectoryInfo(string path)
{
path.ThrowIfNull(() => path);
if (!this.DirectoryExists(path))
{
return(ITunesDirectoryInfo
.CreateNonExistantDirectoryInfo(Path.GetFileName(path), (ITunesDirectoryInfo)this.GetDirectoryInfo(Path.GetDirectoryName(path))));
}
string[] split = path.Split(Path.DirectorySeparatorChar);
string playlist = split[0];
string album = null;
if (split.Length > 1)
{
string artist = split[1];
if (split.Length > 2)
{
album = split[2];
}
var root = this.GetPlaylistStructure(playlist);
IDirectoryInfo directoryInfo = root
.SingleOrDefault(dir => dir.Name == artist);
if (directoryInfo == null)
{
directoryInfo = ITunesDirectoryInfo
.CreateNonExistantDirectoryInfo(album ?? artist, (ITunesDirectoryInfo)this.GetDirectoryInfo(Path.GetDirectoryName(path)));
}
else if (album != null)
{
directoryInfo = directoryInfo
.GetDirectories()
.Single(albumDir => albumDir.Name == album);
}
return(directoryInfo);
}
return(new ITunesDirectoryInfo(playlist));
}
/// <summary>
/// Initializes a new instance of the <see cref="ITunesDirectoryInfo"/> class.
/// The directory will be the middle level of the directory structure and contains the album directories.
/// </summary>
/// <param name="artistName">The name of the artist.</param>
/// <param name="directories">The directories that are contained in this directory.</param>
/// <param name="parent">The parent.</param>
public ITunesDirectoryInfo(string artistName, IEnumerable <ITunesDirectoryInfo> directories, ITunesDirectoryInfo parent)
: this(parent)
{
artistName.ThrowIfNull(() => artistName);
directories.ThrowIfNull(() => directories);
this.name = artistName;
this.directories = directories;
}
/// <summary>
/// Creates an iTunes directory info which does not exist.
/// </summary>
/// <param name="name">The name of the directory.</param>
/// <param name="parent">The parent directory.</param>
/// <returns>A directory whichs <see cref="Exists"/> property is set to false.</returns>
public static ITunesDirectoryInfo CreateNonExistantDirectoryInfo(string name, ITunesDirectoryInfo parent)
{
name.ThrowIfNull(() => name);
parent.ThrowIfNull(() => parent);
var directory = new ITunesDirectoryInfo(parent) { name = name, Exists = false };
return directory;
}
/// <summary>
/// Maps the specified iTunes playlist to a directory structure.
/// </summary>
/// <param name="playlistName">The playlist.</param>
/// <returns>A directory structure which represents the specified iTunes playlist</returns>
public static IEnumerable <ITunesDirectoryInfo> MapPlaylistToDirectoryStructure(string playlistName)
{
if (String.IsNullOrEmpty(playlistName))
{
throw new ArgumentException("The playlist name name cannot be null or empty", Reflector.GetMemberName(() => playlistName));
}
var root = new ITunesDirectoryInfo(playlistName);
var files = new iTunesApp()
.LibrarySource
.Playlists
.ItemByName[playlistName]
.Tracks
.Cast <IITFileOrCDTrack>();
var tracksByArtist = files
.GroupBy(file => file.Artist)
.OrderBy(group => group.Key);
var artistDirectories = new List <ITunesDirectoryInfo>();
foreach (var artistGroup in tracksByArtist)
{
var albumGroups = artistGroup
.GroupBy(track => track.Album);
// The artist name has to be normalized, so that it doesn't contain any characters that are invalid for a path
string artistName = NormalizeArtistOrAlbumName(artistGroup.Key);
var albumDirectories = albumGroups
.Select(album => new { Album = album, AlbumName = NormalizeArtistOrAlbumName(album.Key) })
.Select
(
directory =>
new ITunesDirectoryInfo
(
directory.AlbumName,
directory.Album
.Where(track => track.Location != null)
.Select
(
track => (IFileInfo) new LocalFileInfo(new FileInfo(track.Location))
),
null
)
)
.ToList(); //Execute the query immediately, because a streaming causes weird bugs
var artistDirectory = new ITunesDirectoryInfo(artistName, albumDirectories, root);
foreach (ITunesDirectoryInfo albumDirectory in artistDirectory.GetDirectories())
{
albumDirectory.Parent = artistDirectory;
}
artistDirectories.Add(artistDirectory);
}
return(artistDirectories);
}
