private void PartitionChildren(VirtualFolder folder, Prefixer prefixer, int startfrom = 1)
{
for (var wordcount = startfrom;;)
{
var curwc = wordcount;
var groups = from i in folder.ChildItems.ToList()
let prefix = prefixer.GetWordPrefix(GetTitle(i), curwc)
where !string.IsNullOrWhiteSpace(prefix)
group i by prefix.ToLowerInvariant()
into g
let gcount = g.LongCount()
where gcount > 3
orderby g.LongCount() descending
select g;
var longest = groups.FirstOrDefault();
if (longest == null)
{
if (wordcount++ > 5)
{
return;
}
continue;
}
var newfolder = new VirtualFolder(folder, longest.Key);
foreach (var item in longest)
{
folder.RemoveResource(item);
newfolder.AddResource(item);
}
if (newfolder.ChildCount > 100)
{
PartitionChildren(newfolder, prefixer, wordcount + 1);
}
if (newfolder.ChildFolders.LongCount() == 1)
{
foreach (var f in newfolder.ChildFolders.ToList())
{
folder.AdoptFolder(f);
}
}
else
{
folder.AdoptFolder(newfolder);
}
}
}
private void CloneFolder(VirtualFolder parent, IMediaFolder folder)
{
foreach (var f in folder.ChildFolders) {
var vf = new VirtualFolder(parent, f.Title, f.Id);
parent.AdoptFolder(vf);
CloneFolder(vf, f);
}
foreach (var i in folder.ChildItems) {
if ((types & i.MediaType) == i.MediaType) {
parent.AddResource(i);
}
}
}
private void PartitionChildren(VirtualFolder folder, Prefixer prefixer, int startfrom = 1)
{
for (var wordcount = startfrom; ; ) {
var groups = from i in folder.ChildItems.ToList()
let prefix = prefixer.GetWordPrefix(GetTitle(i), wordcount)
where !string.IsNullOrWhiteSpace(prefix)
group i by prefix
into g
let gcount = g.LongCount()
where gcount > 3
orderby g.LongCount() descending
select g;
var longest = groups.FirstOrDefault();
if (longest == null) {
if (wordcount++ > 5) {
return;
}
continue;
}
var newfolder = new VirtualFolder(folder, longest.Key);
foreach (var item in longest) {
folder.RemoveResource(item);
newfolder.AddResource(item);
}
if (newfolder.ChildCount > 100) {
PartitionChildren(newfolder, prefixer, wordcount + 1);
}
if (newfolder.ChildFolders.LongCount() == 1) {
foreach (var f in newfolder.ChildFolders.ToList()) {
folder.AdoptFolder(f);
}
}
else {
folder.AdoptFolder(newfolder);
}
}
}
private void CloneFolder(VirtualFolder parent, IMediaFolder folder)
{
foreach (var f in folder.ChildFolders)
{
var vf = new VirtualFolder(parent, f.Title, f.Id);
parent.AdoptFolder(vf);
CloneFolder(vf, f);
}
foreach (var i in folder.ChildItems)
{
if ((types & i.MediaType) == i.MediaType)
{
parent.AddResource(i);
}
}
}
public override IMediaFolder Transform(IMediaFolder Root)
{
var root = new VirtualClonedFolder(Root);
var artists = new TripleKeyedVirtualFolder(root, "Artists");
var performers = new TripleKeyedVirtualFolder(root, "Performers");
var albums = new DoubleKeyedVirtualFolder(root, "Albums");
var genres = new SimpleKeyedVirtualFolder(root, "Genre");
var folders = new VirtualFolder(root, "Folders");
SortFolder(root, artists, performers, albums, genres);
foreach (var f in root.ChildFolders.ToList())
{
folders.AdoptFolder(f);
}
root.AdoptFolder(artists);
root.AdoptFolder(performers);
root.AdoptFolder(albums);
root.AdoptFolder(genres);
root.AdoptFolder(folders);
return(root);
}