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using System.IO;
using System.Text.RegularExpressions;
using Emby.Naming.Common;
namespace Emby.Naming.TV
{
/// <summary>
/// Used to resolve information about series from path.
/// </summary>
public static partial class SeriesResolver
{
/// <summary>
/// Regex that matches strings of at least 2 characters separated by a dot or underscore.
/// Used for removing separators between words, i.e turns "The_show" into "The show" while
/// preserving names like "S.H.O.W".
/// </summary>
[GeneratedRegex(@"((?<a>[^\._]{2,})[\._]*)|([\._](?<b>[^\._]{2,}))")]
private static partial Regex SeriesNameRegex();
/// <summary>
/// Regex that matches titles with year in parentheses, optionally preceded by a minus sign.
/// Captures the title (which may be numeric) before the year.
/// </summary>
[GeneratedRegex(@"(?<title>.+?)\s*\(\d{4}\)")]
private static partial Regex TitleWithYearRegex();
/// <summary>
/// Resolve information about series from path.
/// </summary>
/// <param name="options"><see cref="NamingOptions"/> object passed to <see cref="SeriesPathParser"/>.</param>
/// <param name="path">Path to series.</param>
/// <returns>SeriesInfo.</returns>
public static SeriesInfo Resolve(NamingOptions options, string path)
{
string seriesName = Path.GetFileName(path);
// First check if the filename matches a title with year pattern (handles numeric titles)
if (!string.IsNullOrEmpty(seriesName))
{
var titleWithYearMatch = TitleWithYearRegex().Match(seriesName);
if (titleWithYearMatch.Success)
{
seriesName = titleWithYearMatch.Groups["title"].Value.Trim();
return new SeriesInfo(path)
{
Name = seriesName
};
}
}
SeriesPathParserResult result = SeriesPathParser.Parse(options, path);
if (result.Success)
{
if (!string.IsNullOrEmpty(result.SeriesName))
{
seriesName = result.SeriesName;
}
}
if (!string.IsNullOrEmpty(seriesName))
{
seriesName = SeriesNameRegex().Replace(seriesName, "${a} ${b}").Trim();
}
return new SeriesInfo(path)
{
Name = seriesName
};
}
}
}
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