68 lines
2.5 KiB
C#
68 lines
2.5 KiB
C#
using System.Globalization;
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using System.IO;
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using System.Text.RegularExpressions;
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using Emby.Naming.Common;
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namespace Emby.Naming.AudioBook
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{
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/// <summary>
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/// Parser class to extract part and/or chapter number from audiobook filename.
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/// </summary>
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public class AudioBookFilePathParser
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{
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private readonly NamingOptions _options;
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/// <summary>
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/// Initializes a new instance of the <see cref="AudioBookFilePathParser"/> class.
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/// </summary>
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/// <param name="options">Naming options containing AudioBookPartsExpressions.</param>
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public AudioBookFilePathParser(NamingOptions options)
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{
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_options = options;
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}
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/// <summary>
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/// Based on regex determines if filename includes part/chapter number.
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/// </summary>
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/// <param name="path">Path to audiobook file.</param>
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/// <returns>Returns <see cref="AudioBookFilePathParser"/> object.</returns>
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public AudioBookFilePathParserResult Parse(string path)
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{
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AudioBookFilePathParserResult result = default;
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var fileName = Path.GetFileNameWithoutExtension(path);
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foreach (var expression in _options.AudioBookPartsExpressions)
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{
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var match = Regex.Match(fileName, expression, RegexOptions.IgnoreCase);
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if (match.Success)
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{
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if (!result.ChapterNumber.HasValue)
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{
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var value = match.Groups["chapter"];
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if (value.Success)
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{
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if (int.TryParse(value.ValueSpan, NumberStyles.Integer, CultureInfo.InvariantCulture, out var intValue))
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{
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result.ChapterNumber = intValue;
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}
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}
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}
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if (!result.PartNumber.HasValue)
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{
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var value = match.Groups["part"];
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if (value.Success)
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{
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if (int.TryParse(value.ValueSpan, NumberStyles.Integer, CultureInfo.InvariantCulture, out var intValue))
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{
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result.PartNumber = intValue;
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}
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}
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}
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}
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}
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return result;
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}
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}
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}
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