/// <summary>
/// Filter the chapters according to the chapter and volume filter.
/// </summary>
/// <param name="chapters">Each chapter.</param>
/// <param name="options">The collection of options.</param>
public static IEnumerable<IChapter> Filter(this IEnumerable<IChapter> chapters, Options options) {
foreach (var chapter in chapters) {
if (chapter.Number != null) {
if (options.FilterOnChapter < 0 && chapter.Number >= Math.Abs(options.FilterOnChapter)) {
continue;
}
if (options.FilterOnChapter > 0 && chapter.Number <= options.FilterOnChapter) {
continue;
}
}
if (chapter.Volume != null) {
if (options.FilterOnVolume < 0 && chapter.Volume >= Math.Abs(options.FilterOnVolume)) {
continue;
}
if (options.FilterOnVolume > 0 && chapter.Volume <= options.FilterOnVolume) {
continue;
}
}
yield return chapter;
}
}
/// <summary>
/// Convert the chapter to a file name.
/// </summary>
/// <param name="chapter">The chapter.</param>
/// <param name="seriesTitle">The series title.</param>
/// <param name="options">The collection of options.</param>
public static string ToFileName(this IChapter chapter, string seriesTitle, Options options) {
return string.Format(chapter.Volume == null ? "{0} #{2}.{3}" : "{0} V{1} #{2}.{3}", seriesTitle, (chapter.Volume ?? 0).ToString("00"), (chapter.Number ?? 0).ToString("000.####"), options.FileExtension.InvalidatePath());
}
