using System.Text.RegularExpressions;

namespace AnimeAnnouncer.Torrents
{
    public static class TorrentDirectoryNamer
    {
        /// <summary>
        /// Turns a release title into a dotted directory name, stripping the episode number
        /// (keeping the resolution) and any trailing parenthesised suffix.
        /// e.g. "Show Name S01E05 1080p WEB (Group)" -> "Show.Name.S01.1080p.WEB"
        /// </summary>
        public static String FromTitle(String title)
        {
            String name = title.Trim();
            name = Regex.Replace(name, @"E\d{2,3}.*?(\d{3,4}p)", " $1");
            name = Regex.Replace(name, @"\s\(.*?\)$", "");
            return name.Replace(" ", ".");
        }

        public static String PrepareForURI(String title)
        {
            var titlePart = Regex.Replace(title, @"[^\w\s]+", String.Empty);
            titlePart = Regex.Replace(titlePart, @"\s+", "+");
            return titlePart;
        }

        /// <summary>
        /// Builds the full save path for a release title under <paramref name="destinationFolder"/>.
        /// </summary>
        public static String FromTitle(String title, String destinationFolder)
        {
            return destinationFolder + (destinationFolder.EndsWith("/") ? String.Empty : "/") + FromTitle(title);
        }
    }
}