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using System;
using Emby.Naming.Common;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
namespace Emby.Naming.Video
{
/// <summary>
/// http://kodi.wiki/view/Advancedsettings.xml#video
/// </summary>
public class CleanDateTimeParser
{
private readonly NamingOptions _options;
public CleanDateTimeParser(NamingOptions options)
{
_options = options;
}
public CleanDateTimeResult Clean(string name)
{
var originalName = name;
try
{
var extension = Path.GetExtension(name) ?? string.Empty;
// Check supported extensions
if (!_options.VideoFileExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase) &&
!_options.AudioFileExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
{
// Dummy up a file extension because the expressions will fail without one
// This is tricky because we can't just check Path.GetExtension for empty
// If the input is "St. Vincent (2014)", it will produce ". Vincent (2014)" as the extension
name += ".mkv";
}
}
catch (ArgumentException)
{
}
var result = _options.CleanDateTimeRegexes.Select(i => Clean(name, i))
.FirstOrDefault(i => i.HasChanged) ??
new CleanDateTimeResult { Name = originalName };
if (result.HasChanged)
{
return result;
}
// Make a second pass, running clean string first
var cleanStringResult = new CleanStringParser().Clean(name, _options.CleanStringRegexes);
if (!cleanStringResult.HasChanged)
{
return result;
}
return _options.CleanDateTimeRegexes.Select(i => Clean(cleanStringResult.Name, i))
.FirstOrDefault(i => i.HasChanged) ??
result;
}
private static CleanDateTimeResult Clean(string name, Regex expression)
{
var result = new CleanDateTimeResult();
var match = expression.Match(name);
if (match.Success && match.Groups.Count == 4)
{
int year;
if (match.Groups[1].Success && match.Groups[2].Success && int.TryParse(match.Groups[2].Value, NumberStyles.Integer, CultureInfo.InvariantCulture, out year))
{
name = match.Groups[1].Value;
result.Year = year;
result.HasChanged = true;
}
}
result.Name = name;
return result;
}
}
}
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