339 lines
14 KiB
C#
339 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using AaxDecrypter;
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using Dinah.Core;
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using FileManager;
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using FileManager.NamingTemplate;
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namespace LibationFileManager
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{
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public interface ITemplate
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{
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static abstract string DefaultTemplate { get; }
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static abstract IEnumerable<TagCollection> TagCollections { get; }
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}
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public abstract class Templates
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{
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public const string ERROR_FULL_PATH_IS_INVALID = @"No colons or full paths allowed. Eg: should not start with C:\";
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public const string WARNING_NO_CHAPTER_NUMBER_TAG = "Should include chapter number tag in template used for naming files which are split by chapter. Ie: <ch#> or <ch# 0>";
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//Assigning the properties in the static constructor will require all
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//Templates users to have a valid configuration file. To allow tests
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//to work without access to Configuration, only load templates on demand.
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private static FolderTemplate _folder;
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private static FileTemplate _file;
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private static ChapterFileTemplate _chapterFile;
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private static ChapterTitleTemplate _chapterTitle;
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public static FolderTemplate Folder => _folder ??= GetTemplate<FolderTemplate>(Configuration.Instance.FolderTemplate);
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public static FileTemplate File => _file ??= GetTemplate<FileTemplate>(Configuration.Instance.FileTemplate);
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public static ChapterFileTemplate ChapterFile => _chapterFile ??= GetTemplate<ChapterFileTemplate>(Configuration.Instance.ChapterFileTemplate);
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public static ChapterTitleTemplate ChapterTitle => _chapterTitle ??= GetTemplate<ChapterTitleTemplate>(Configuration.Instance.ChapterTitleTemplate);
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#region Template Parsing
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public static T GetTemplate<T>(string templateText) where T : Templates, ITemplate, new()
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=> TryGetTemplate<T>(templateText, out var template) ? template : GetDefaultTemplate<T>();
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public static bool TryGetTemplate<T>(string templateText, out T template) where T : Templates, ITemplate, new()
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{
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var namingTemplate = NamingTemplate.Parse(templateText, T.TagCollections);
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template = new() { Template = namingTemplate };
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return !namingTemplate.Errors.Any();
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}
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private static T GetDefaultTemplate<T>() where T : Templates, ITemplate, new()
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=> new() { Template = NamingTemplate.Parse(T.DefaultTemplate, T.TagCollections) };
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static Templates()
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{
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Configuration.Instance.PropertyChanged +=
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[PropertyChangeFilter(nameof(Configuration.FolderTemplate))]
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(_,e) => _folder = GetTemplate<FolderTemplate>((string)e.NewValue);
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Configuration.Instance.PropertyChanged +=
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[PropertyChangeFilter(nameof(Configuration.FileTemplate))]
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(_, e) => _file = GetTemplate<FileTemplate>((string)e.NewValue);
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Configuration.Instance.PropertyChanged +=
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[PropertyChangeFilter(nameof(Configuration.ChapterFileTemplate))]
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(_, e) => _chapterFile = GetTemplate<ChapterFileTemplate>((string)e.NewValue);
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Configuration.Instance.PropertyChanged +=
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[PropertyChangeFilter(nameof(Configuration.ChapterTitleTemplate))]
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(_, e) => _chapterTitle = GetTemplate<ChapterTitleTemplate>((string)e.NewValue);
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}
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#endregion
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#region Template Properties
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public IEnumerable<TemplateTags> TagsRegistered => Template.TagsRegistered.Cast<TemplateTags>();
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public IEnumerable<TemplateTags> TagsInUse => Template.TagsInUse.Cast<TemplateTags>();
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public abstract string Name { get; }
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public abstract string Description { get; }
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public string TemplateText => Template.TemplateText;
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protected NamingTemplate Template { get; private set; }
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#endregion
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#region validation
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public virtual IEnumerable<string> Errors => Template.Errors;
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public bool IsValid => !Errors.Any();
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public virtual IEnumerable<string> Warnings => Template.Warnings;
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public bool HasWarnings => Warnings.Any();
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#endregion
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#region to file name
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public string GetName(LibraryBookDto libraryBookDto, MultiConvertFileProperties multiChapProps)
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{
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ArgumentValidator.EnsureNotNull(libraryBookDto, nameof(libraryBookDto));
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ArgumentValidator.EnsureNotNull(multiChapProps, nameof(multiChapProps));
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return string.Join("", Template.Evaluate(libraryBookDto, multiChapProps).Select(p => p.Value));
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}
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public LongPath GetFilename(LibraryBookDto libraryBookDto, string baseDir, string fileExtension, ReplacementCharacters replacements = null, bool returnFirstExisting = false)
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{
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ArgumentValidator.EnsureNotNull(libraryBookDto, nameof(libraryBookDto));
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ArgumentValidator.EnsureNotNull(baseDir, nameof(baseDir));
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ArgumentValidator.EnsureNotNull(fileExtension, nameof(fileExtension));
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replacements ??= Configuration.Instance.ReplacementCharacters;
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return GetFilename(baseDir, fileExtension,replacements, returnFirstExisting, libraryBookDto);
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}
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public LongPath GetFilename(LibraryBookDto libraryBookDto, MultiConvertFileProperties multiChapProps, string baseDir, string fileExtension, ReplacementCharacters replacements = null, bool returnFirstExisting = false)
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{
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ArgumentValidator.EnsureNotNull(libraryBookDto, nameof(libraryBookDto));
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ArgumentValidator.EnsureNotNull(multiChapProps, nameof(multiChapProps));
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ArgumentValidator.EnsureNotNull(baseDir, nameof(baseDir));
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ArgumentValidator.EnsureNotNull(fileExtension, nameof(fileExtension));
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replacements ??= Configuration.Instance.ReplacementCharacters;
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return GetFilename(baseDir, fileExtension, replacements, returnFirstExisting, libraryBookDto, multiChapProps);
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}
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protected virtual IEnumerable<string> GetTemplatePartsStrings(List<TemplatePart> parts, ReplacementCharacters replacements)
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=> parts.Select(p => replacements.ReplaceFilenameChars(p.Value));
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private LongPath GetFilename(string baseDir, string fileExtension, ReplacementCharacters replacements, bool returnFirstExisting, params object[] dtos)
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{
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fileExtension = FileUtility.GetStandardizedExtension(fileExtension);
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var parts = Template.Evaluate(dtos).ToList();
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var pathParts = GetPathParts(GetTemplatePartsStrings(parts, replacements));
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//Remove 1 character from the end of the longest filename part until
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//the total filename is less than max filename length
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for (int i = 0; i < pathParts.Count; i++)
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{
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var part = pathParts[i];
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//If file already exists, GetValidFilename will append " (n)" to the filename.
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//This could cause the filename length to exceed MaxFilenameLength, so reduce
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//allowable filename length by 5 chars, allowing for up to 99 duplicates.
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var maxFilenameLength = LongPath.MaxFilenameLength -
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(i < pathParts.Count - 1 || string.IsNullOrEmpty(fileExtension) ? 0 : fileExtension.Length + 5);
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while (part.Sum(LongPath.GetFilesystemStringLength) > maxFilenameLength)
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{
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int maxLength = part.Max(p => p.Length);
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var maxEntry = part.First(p => p.Length == maxLength);
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var maxIndex = part.IndexOf(maxEntry);
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part.RemoveAt(maxIndex);
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part.Insert(maxIndex, maxEntry.Remove(maxLength - 1, 1));
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}
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}
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var fullPath = Path.Combine(pathParts.Select(fileParts => string.Join("", fileParts)).Prepend(baseDir).ToArray());
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return FileUtility.GetValidFilename(fullPath, replacements, fileExtension, returnFirstExisting);
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}
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/// <summary>
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/// Organize template parts into directories. Any Extra slashes will be
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/// returned as empty directories and are taken care of by Path.Combine()
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/// </summary>
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/// <returns>A List of template directories. Each directory is a list of template part strings</returns>
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private static List<List<string>> GetPathParts(IEnumerable<string> templateParts)
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{
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List<List<string>> directories = new();
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List<string> dir = new();
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foreach (var part in templateParts)
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{
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int slashIndex, lastIndex = 0;
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while((slashIndex = part.IndexOf(Path.DirectorySeparatorChar, lastIndex)) > -1)
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{
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dir.Add(part[lastIndex..slashIndex]);
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directories.Add(dir);
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dir = new();
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lastIndex = slashIndex + 1;
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}
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dir.Add(part[lastIndex..]);
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}
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directories.Add(dir);
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return directories;
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}
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#endregion
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#region Registered Template Properties
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private static readonly PropertyTagCollection<LibraryBookDto> filePropertyTags =
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new(caseSensative: true, StringFormatter, DateTimeFormatter, IntegerFormatter)
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{
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//Don't allow formatting of Id
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{ TemplateTags.Id, lb => lb.AudibleProductId, v => v },
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{ TemplateTags.Title, lb => lb.Title },
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{ TemplateTags.TitleShort, lb => getTitleShort(lb.Title) },
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{ TemplateTags.Author, lb => lb.AuthorNames },
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{ TemplateTags.FirstAuthor, lb => lb.FirstAuthor },
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{ TemplateTags.Narrator, lb => lb.NarratorNames },
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{ TemplateTags.FirstNarrator, lb => lb.FirstNarrator },
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{ TemplateTags.Series, lb => lb.SeriesName },
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{ TemplateTags.SeriesNumber, lb => lb.SeriesNumber },
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{ TemplateTags.Language, lb => lb.Language },
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//Don't allow formatting of LanguageShort
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{ TemplateTags.LanguageShort, lb =>lb.Language, getLanguageShort },
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{ TemplateTags.Bitrate, lb => lb.BitRate },
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{ TemplateTags.SampleRate, lb => lb.SampleRate },
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{ TemplateTags.Channels, lb => lb.Channels },
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{ TemplateTags.Account, lb => lb.Account },
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{ TemplateTags.Locale, lb => lb.Locale },
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{ TemplateTags.YearPublished, lb => lb.YearPublished },
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{ TemplateTags.DatePublished, lb => lb.DatePublished },
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{ TemplateTags.DateAdded, lb => lb.DateAdded },
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{ TemplateTags.FileDate, lb => lb.FileDate },
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};
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private static readonly List<TagCollection> chapterPropertyTags = new()
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{
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new PropertyTagCollection<LibraryBookDto>(caseSensative: true, StringFormatter)
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{
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{ TemplateTags.Title, lb => lb.Title },
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{ TemplateTags.TitleShort, lb => getTitleShort(lb.Title) },
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{ TemplateTags.Series, lb => lb.SeriesName },
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},
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new PropertyTagCollection<MultiConvertFileProperties>(caseSensative: true, StringFormatter, IntegerFormatter, DateTimeFormatter)
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{
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{ TemplateTags.ChCount, m => m.PartsTotal },
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{ TemplateTags.ChNumber, m => m.PartsPosition },
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{ TemplateTags.ChNumber0, m => m.PartsPosition.ToString("D" + ((int)Math.Log10(m.PartsTotal) + 1)) },
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{ TemplateTags.ChTitle, m => m.Title },
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{ TemplateTags.FileDate, m => m.FileDate }
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}
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};
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private static readonly ConditionalTagCollection<LibraryBookDto> conditionalTags = new()
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{
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{ TemplateTags.IfSeries, lb => lb.IsSeries },
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{ TemplateTags.IfPodcast, lb => lb.IsPodcast },
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{ TemplateTags.IfBookseries, lb => lb.IsSeries && !lb.IsPodcast },
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};
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#endregion
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#region Tag Formatters
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private static string getTitleShort(string title)
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=> title?.IndexOf(':') > 0 ? title.Substring(0, title.IndexOf(':')) : title;
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private static string getLanguageShort(string language)
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{
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if (language is null)
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return null;
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language = language.Trim();
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if (language.Length <= 3)
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return language.ToUpper();
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return language[..3].ToUpper();
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}
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private static string StringFormatter(ITemplateTag templateTag, string value, string formatString)
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{
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if (string.Compare(formatString, "u", ignoreCase: true) == 0) return value?.ToUpper();
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else if (string.Compare(formatString, "l", ignoreCase: true) == 0) return value?.ToLower();
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else return value;
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}
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private static string IntegerFormatter(ITemplateTag templateTag, int value, string formatString)
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{
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if (int.TryParse(formatString, out var numDigits))
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return value.ToString($"D{numDigits}");
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return value.ToString();
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}
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private static string DateTimeFormatter(ITemplateTag templateTag, DateTime value, string formatString)
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{
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if (string.IsNullOrEmpty(formatString))
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return value.ToString(TemplateTags.DEFAULT_DATE_FORMAT);
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return value.ToString(formatString);
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}
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#endregion
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public class FolderTemplate : Templates, ITemplate
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{
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public override string Name => "Folder Template";
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public override string Description => Configuration.GetDescription(nameof(Configuration.FolderTemplate));
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public static string DefaultTemplate { get; } = "<title short> [<id>]";
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public static IEnumerable<TagCollection> TagCollections => new TagCollection[] { filePropertyTags, conditionalTags };
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public override IEnumerable<string> Errors
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=> TemplateText?.Length >= 2 && Path.IsPathFullyQualified(TemplateText) ? base.Errors.Append(ERROR_FULL_PATH_IS_INVALID) : base.Errors;
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protected override List<string> GetTemplatePartsStrings(List<TemplatePart> parts, ReplacementCharacters replacements)
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=> parts
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.Select(tp => tp.TemplateTag is null
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//FolderTemplate literals can have directory separator characters
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? replacements.ReplacePathChars(tp.Value.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar))
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: replacements.ReplaceFilenameChars(tp.Value)
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).ToList();
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}
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public class FileTemplate : Templates, ITemplate
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{
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public override string Name => "File Template";
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public override string Description => Configuration.GetDescription(nameof(Configuration.FileTemplate));
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public static string DefaultTemplate { get; } = "<title> [<id>]";
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public static IEnumerable<TagCollection> TagCollections { get; } = new TagCollection[] { filePropertyTags, conditionalTags };
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}
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public class ChapterFileTemplate : Templates, ITemplate
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{
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public override string Name => "Chapter File Template";
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public override string Description => Configuration.GetDescription(nameof(Configuration.ChapterFileTemplate));
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public static string DefaultTemplate { get; } = "<title> [<id>] - <ch# 0> - <ch title>";
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public static IEnumerable<TagCollection> TagCollections { get; } = chapterPropertyTags.Append(filePropertyTags).Append(conditionalTags);
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public override IEnumerable<string> Warnings
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=> Template.TagsInUse.Any(t => t.TagName.In(TemplateTags.ChNumber.TagName, TemplateTags.ChNumber0.TagName))
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? base.Warnings
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: base.Warnings.Append(WARNING_NO_CHAPTER_NUMBER_TAG);
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}
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public class ChapterTitleTemplate : Templates, ITemplate
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{
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public override string Name => "Chapter Title Template";
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public override string Description => Configuration.GetDescription(nameof(Configuration.ChapterTitleTemplate));
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public static string DefaultTemplate => "<ch#> - <title short>: <ch title>";
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public static IEnumerable<TagCollection> TagCollections { get; } = chapterPropertyTags.Append(conditionalTags);
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protected override IEnumerable<string> GetTemplatePartsStrings(List<TemplatePart> parts, ReplacementCharacters replacements)
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=> parts.Select(p => p.Value);
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}
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}
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}
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