jellyfin-server/Emby.Naming/Subtitles/SubtitleParser.cs
2020-04-19 18:27:07 +02:00

64 lines
1.9 KiB
C#

#nullable enable
#pragma warning disable CS1591
using System;
using System.IO;
using System.Linq;
using Emby.Naming.Common;
namespace Emby.Naming.Subtitles
{
public class SubtitleParser
{
private readonly NamingOptions _options;
public SubtitleParser(NamingOptions options)
{
_options = options;
}
public SubtitleInfo? ParseFile(string path)
{
if (path.Length == 0)
{
throw new ArgumentException("File path can't be empty.", nameof(path));
}
var extension = Path.GetExtension(path);
if (!_options.SubtitleFileExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
{
return null;
}
var flags = GetFlags(path);
var info = new SubtitleInfo
{
Path = path,
IsDefault = _options.SubtitleDefaultFlags.Any(i => flags.Contains(i, StringComparer.OrdinalIgnoreCase)),
IsForced = _options.SubtitleForcedFlags.Any(i => flags.Contains(i, StringComparer.OrdinalIgnoreCase))
};
var parts = flags.Where(i => !_options.SubtitleDefaultFlags.Contains(i, StringComparer.OrdinalIgnoreCase)
&& !_options.SubtitleForcedFlags.Contains(i, StringComparer.OrdinalIgnoreCase))
.ToList();
// Should have a name, language and file extension
if (parts.Count >= 3)
{
info.Language = parts[^2];
}
return info;
}
private string[] GetFlags(string path)
{
// Note: the tags need be be surrounded be either a space ( ), hyphen -, dot . or underscore _.
var file = Path.GetFileName(path);
return file.Split(_options.SubtitleFlagDelimiters, StringSplitOptions.RemoveEmptyEntries);
}
}
}