protected void OrderFiles(IEnumerable <T> files)
{
// ReSharper disable once PossibleMultipleEnumeration
FileNames = GetFileNames(files).Where(FileIsImage).OrderBy(c => c).ToArray();
OrderedFileNames = PageOrderMode switch
{
MainViewModel.PageOrder.Natural => GetFileNames(files)
.Where(FileIsImage)
.OrderBy(ef => ef, new NaturalSortComparer())
.ToArray(),
MainViewModel.PageOrder.Modified => OrderFilesByDateModified(files).Where(FileIsImage).ToArray(),
MainViewModel.PageOrder.Ordinal => FileNames.ToArray(),
_ => throw new ArgumentOutOfRangeException()
};
OrderedShortNames = OrderedFileNames.Select(fn => GetShortName(this is FolderContainer ? ContainerPath : null, fn)).ToArray();
foreach (var pageTag in Item.PageTags)
{
var index = Array.IndexOf(OrderedShortNames, pageTag.FileName);
pageTag.Page = index == -1 ? -1 : index + 1;
}
}
public string GetFileName() => FileNames == null ? FileName : FileNames.ToArray()[_random.Next(0, FileNames.Count())];