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using System;
using System.IO;
using System.Linq;
using Emby.Naming.Common;
using Jellyfin.Extensions;
namespace Emby.Naming.Subtitles
{
/// <summary>
/// Subtitle Parser class.
/// </summary>
public class SubtitleFilePathParser
{
private readonly NamingOptions _options;
/// <summary>
/// Initializes a new instance of the <see cref="SubtitleFilePathParser"/> class.
/// </summary>
/// <param name="options"><see cref="NamingOptions"/> object containing SubtitleFileExtensions, SubtitleDefaultFlags, SubtitleForcedFlags and SubtitleFlagDelimiters.</param>
public SubtitleFilePathParser(NamingOptions options)
{
_options = options;
}
/// <summary>
/// Parse file to determine if it is a subtitle and <see cref="SubtitleFileInfo"/>.
/// </summary>
/// <param name="path">Path to file.</param>
/// <returns>Returns null or <see cref="SubtitleFileInfo"/> object if parsing is successful.</returns>
public SubtitleFileInfo? ParseFile(string path)
{
if (path.Length == 0)
{
return null;
}
var extension = Path.GetExtension(path);
if (!_options.SubtitleFileExtensions.Contains(extension, StringComparison.OrdinalIgnoreCase))
{
return null;
}
var flags = GetFileFlags(path);
var info = new SubtitleFileInfo(
path,
_options.SubtitleDefaultFlags.Any(i => flags.Contains(i, StringComparison.OrdinalIgnoreCase)),
_options.SubtitleForcedFlags.Any(i => flags.Contains(i, StringComparison.OrdinalIgnoreCase)));
return info;
}
private string[] GetFileFlags(string path)
{
var file = Path.GetFileNameWithoutExtension(path);
return file.Split(_options.SubtitleFlagDelimiters, StringSplitOptions.RemoveEmptyEntries);
}
}
}
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