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using System;
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using System.IO;
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using System.Linq;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Model.Entities;
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namespace Emby.Server.Implementations.Library.Resolvers.Books
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{
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/// <summary>
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///
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/// </summary>
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public class BookResolver : MediaBrowser.Controller.Resolvers.ItemResolver<Book>
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{
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private readonly string[] _validExtensions = {".pdf", ".epub", ".mobi", ".cbr", ".cbz"};
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/// <summary>
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///
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/// </summary>
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/// <param name="args"></param>
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/// <returns></returns>
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protected override Book Resolve(ItemResolveArgs args)
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{
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var collectionType = args.GetCollectionType();
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// Only process items that are in a collection folder containing books
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if (!string.Equals(collectionType, CollectionType.Books, StringComparison.OrdinalIgnoreCase))
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return null;
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if (args.IsDirectory)
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{
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return GetBook(args);
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}
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var extension = Path.GetExtension(args.Path);
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if (extension != null && _validExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
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{
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// It's a book
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return new Book
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{
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Path = args.Path,
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IsInMixedFolder = true
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};
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}
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return null;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="args"></param>
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/// <returns></returns>
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private Book GetBook(ItemResolveArgs args)
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{
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var bookFiles = args.FileSystemChildren.Where(f =>
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{
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var fileExtension = Path.GetExtension(f.FullName) ??
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string.Empty;
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return _validExtensions.Contains(fileExtension,
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StringComparer
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.OrdinalIgnoreCase);
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}).ToList();
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// Don't return a Book if there is more (or less) than one document in the directory
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if (bookFiles.Count != 1)
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return null;
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return new Book
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{
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Path = bookFiles[0].FullName
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};
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}
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}
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}
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