246 lines
12 KiB
C#
246 lines
12 KiB
C#
using System.Collections.ObjectModel;
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using System.Text.Json;
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namespace View_by_Distance.Shared.Models.Stateless.Methods;
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internal abstract class Container
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{
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private record FilePair(bool IsUnique, List<string> Collection, FilePath FilePath, Models.Item Item) { }
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internal static DateTime[] GetContainerDateTimes(IEnumerable<Models.Item> items)
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{
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DateTime[] results;
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DateTime? containerMinimumDateTime;
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DateTime? containerMaximumDateTime;
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containerMinimumDateTime = (from l in items select l.ImageFileHolder.LastWriteTime).Min();
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if (containerMinimumDateTime is null)
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containerMaximumDateTime = null;
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else
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containerMaximumDateTime = (from l in items select l.ImageFileHolder.LastWriteTime).Max();
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if (containerMinimumDateTime is null || containerMaximumDateTime is null)
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results = [];
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else
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results = [containerMinimumDateTime.Value, containerMaximumDateTime.Value];
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return results;
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}
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internal static Models.Item[] GetFilterItems(Properties.IPropertyConfiguration propertyConfiguration, Models.Container container)
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{
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List<Models.Item> results = [];
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foreach (Models.Item item in container.Items)
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{
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if (item.ImageFileHolder is not null
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&& item.IsValidImageFormatExtension
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&& !propertyConfiguration.IgnoreExtensions.Contains(item.ImageFileHolder.ExtensionLowered))
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results.Add(item);
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}
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return results.ToArray();
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}
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internal static List<Models.FilePair> GetFilePairs(Properties.IPropertyConfiguration propertyConfiguration, string directorySearchFilter, string extension, string aPropertySingletonDirectory, ReadOnlyCollection<string[]> filesCollection)
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{
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int renamed;
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const bool useCeilingAverage = true;
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List<Models.FilePair>? filePairs = null;
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ReadOnlyCollection<string[]>? jsonFilesCollection = null;
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IReadOnlyDictionary<string, List<string>>? compareFileNamesToFiles = null;
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IReadOnlyDictionary<string, List<string>> fileNamesToFiles = XDirectory.GetFilesKeyValuePairs(filesCollection);
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for (int i = 0; i < int.MaxValue; i++)
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{
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renamed = 0;
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jsonFilesCollection = IDirectory.GetFilesCollection(aPropertySingletonDirectory, directorySearchFilter, extension, useCeilingAverage);
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compareFileNamesToFiles = XDirectory.GetFilesKeyValuePairs(jsonFilesCollection);
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renamed += XDirectory.LookForAbandoned(jsonFilesCollection, fileNamesToFiles, extension);
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filePairs = XDirectory.GetFiles(filesCollection, fileNamesToFiles, extension, compareFileNamesToFiles);
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renamed += XDirectory.MaybeMove(propertyConfiguration, filePairs, aPropertySingletonDirectory, extension);
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if (renamed == 0)
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break;
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}
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if (filePairs is null || jsonFilesCollection is null || compareFileNamesToFiles is null)
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throw new NullReferenceException(nameof(filePairs));
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return filePairs;
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}
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private static Models.Property? GetProperty(Models.FilePair filePair)
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{
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Models.Property? result;
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if (filePair.Match is null)
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result = null;
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else
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{
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string json = File.ReadAllText(filePair.Match);
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if (string.IsNullOrEmpty(json))
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result = null;
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else
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result = JsonSerializer.Deserialize(json, PropertyGenerationContext.Default.Property);
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}
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return result;
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}
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private static void ParallelFor(Properties.IPropertyConfiguration propertyConfiguration, string aPropertySingletonDirectory, string extension, int rootDirectoryLength, Models.FilePair filePair, List<FilePair> results)
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{
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bool abandoned = false;
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Models.FileHolder sourceDirectoryFileHolder;
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Models.Property? property = GetProperty(filePair);
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Models.FileHolder imageFileInfo = IFileHolder.Get(filePair.Path);
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FilePath filePath = FilePath.Get(propertyConfiguration, imageFileInfo, index: null);
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bool? fileSizeChanged = property is not null ? property.FileSize != filePath.Length : null;
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bool isValidImageFormatExtension = propertyConfiguration.ValidImageFormatExtensions.Contains(filePath.ExtensionLowered);
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string relativePath = IPath.GetRelativePath(filePair.Path, rootDirectoryLength, forceExtensionToLower: true);
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bool? lastWriteTimeChanged = property is not null ? propertyConfiguration.PropertiesChangedForProperty || property.LastWriteTime.Ticks != filePath.LastWriteTicks : null;
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if (filePair.Match is not null)
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sourceDirectoryFileHolder = IFileHolder.Get(filePair.Match);
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else if (!filePair.IsUnique)
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sourceDirectoryFileHolder = IFileHolder.Get(Path.GetFullPath(string.Concat(aPropertySingletonDirectory, relativePath, extension)));
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else
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{
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string fileName = Path.GetFileName(filePair.Path);
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(string directoryName, _) = IPath.GetDirectoryNameAndIndex(propertyConfiguration, filePath);
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sourceDirectoryFileHolder = IFileHolder.Get(Path.Combine(aPropertySingletonDirectory, directoryName, $"{fileName}{extension}"));
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}
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if (sourceDirectoryFileHolder.CreationTime is not null && sourceDirectoryFileHolder.LastWriteTime is not null && filePath.LastWriteTicks != sourceDirectoryFileHolder.CreationTime.Value.Ticks)
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{
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File.SetCreationTime(sourceDirectoryFileHolder.FullName, new(filePath.LastWriteTicks));
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File.SetLastWriteTime(sourceDirectoryFileHolder.FullName, sourceDirectoryFileHolder.LastWriteTime.Value);
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}
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Models.Item item = new(filePath, sourceDirectoryFileHolder, relativePath, imageFileInfo, filePair.IsNotUniqueAndNeedsReview, filePair.IsUnique, isValidImageFormatExtension, property, abandoned, fileSizeChanged, lastWriteTimeChanged);
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lock (results)
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results.Add(new(filePair.IsUnique, filePair.Collection, filePath, item));
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}
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private static List<FilePair> GetFilePairs(Properties.IPropertyConfiguration propertyConfiguration, string aPropertySingletonDirectory, string filesCollectionDirectory, string extension, List<Models.FilePair> filePairs)
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{
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List<FilePair> results = [];
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int maxDegreeOfParallelism = Environment.ProcessorCount;
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int filesCollectionDirectoryLength = filesCollectionDirectory.Length;
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ParallelOptions parallelOptions = new() { MaxDegreeOfParallelism = maxDegreeOfParallelism };
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_ = Parallel.For(0, filePairs.Count, parallelOptions, (i, state) => ParallelFor(propertyConfiguration, aPropertySingletonDirectory, extension, filesCollectionDirectoryLength, filePairs[i], results));
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return results;
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}
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private static (int, Models.Container[]) GetContainers(Properties.IPropertyConfiguration propertyConfiguration, string aPropertySingletonDirectory, string filesCollectionDirectory, ReadOnlyCollection<string[]> filesCollection, string directorySearchFilter)
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{
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List<Models.Container> results = [];
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string? directory;
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List<Models.Item>? items;
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Models.Container container;
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List<string> directories = [];
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const string extension = ".json";
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Dictionary<string, List<Models.Item>> directoryToItems = [];
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foreach (string[] files in filesCollection)
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{
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if (files.Length == 0)
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continue;
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directory = Path.GetDirectoryName(files.First());
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if (directory is null)
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continue;
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if (!directories.Contains(directory))
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directories.Add(directory);
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if (!directoryToItems.TryGetValue(directory, out items))
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{
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directoryToItems.Add(directory, []);
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if (!directoryToItems.TryGetValue(directory, out items))
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throw new Exception();
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}
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}
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List<Models.FilePair> filePairs = GetFilePairs(propertyConfiguration, directorySearchFilter, extension, aPropertySingletonDirectory, filesCollection);
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List<FilePair> collection = GetFilePairs(propertyConfiguration, aPropertySingletonDirectory, filesCollectionDirectory, extension, filePairs);
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foreach (FilePair filePair in collection)
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{
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if (!directoryToItems.TryGetValue(filePair.FilePath.DirectoryName, out items))
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{
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directoryToItems.Add(filePair.FilePath.DirectoryName, []);
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if (!directoryToItems.TryGetValue(filePair.FilePath.DirectoryName, out items))
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throw new Exception();
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}
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items.Add(filePair.Item);
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}
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foreach (KeyValuePair<string, List<Models.Item>> keyValuePair in directoryToItems)
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{
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if (keyValuePair.Value.Count == 0)
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continue;
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container = new(keyValuePair.Key, keyValuePair.Value);
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results.Add(container);
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}
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return (collection.Count, results.ToArray());
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}
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internal static (int, Models.Container[]) GetContainers(Properties.IPropertyConfiguration propertyConfiguration, string aPropertySingletonDirectory, string filesCollectionDirectory, ReadOnlyCollection<string[]> filesCollection)
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{
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int count;
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Models.Container[] results;
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const string directorySearchFilter = "*";
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(count, results) = GetContainers(propertyConfiguration, aPropertySingletonDirectory, filesCollectionDirectory, filesCollection, directorySearchFilter);
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return (count, results);
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}
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internal static (int, Models.Container[]) GetContainers(Properties.IPropertyConfiguration propertyConfiguration, string aPropertySingletonDirectory)
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{
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int count;
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Models.Container[] results;
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const bool useCeilingAverage = true;
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const string fileSearchFilter = "*";
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const string directorySearchFilter = "*";
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ReadOnlyCollection<string[]> filesCollection = IDirectory.GetFilesCollection(propertyConfiguration.RootDirectory, directorySearchFilter, fileSearchFilter, useCeilingAverage);
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(count, results) = GetContainers(propertyConfiguration, aPropertySingletonDirectory, propertyConfiguration.RootDirectory, filesCollection, directorySearchFilter);
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return (count, results);
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}
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internal static List<int> GetFilteredDistinctIds(Properties.IPropertyConfiguration propertyConfiguration, Models.Container[] containers)
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{
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List<int> results = [];
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Models.Item[] filteredItems;
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foreach (Models.Container container in containers)
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{
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if (container.Items.Count == 0)
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continue;
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filteredItems = GetFilterItems(propertyConfiguration, container);
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if (filteredItems.Length == 0)
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continue;
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foreach (Models.Item item in filteredItems)
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{
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if (item.Property?.Id is null || item.ResizedFileHolder is null)
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continue;
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if (results.Contains(item.Property.Id.Value))
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continue;
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results.Add(item.Property.Id.Value);
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}
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}
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return results;
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}
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internal static ReadOnlyCollection<Models.Item> GetItems(Properties.IPropertyConfiguration propertyConfiguration, ReadOnlyCollection<Models.Container> containers, bool distinctItems, bool filterItems)
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{
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List<Models.Item> results = [];
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List<int> distinct = [];
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IEnumerable<Models.Item> filteredItems;
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foreach (Models.Container container in containers)
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{
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if (container.Items.Count == 0)
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continue;
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if (!filterItems)
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filteredItems = container.Items;
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else
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{
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filteredItems = GetFilterItems(propertyConfiguration, container);
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if (!filteredItems.Any())
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continue;
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}
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foreach (Models.Item item in filteredItems)
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{
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if (item.Property?.Id is null || item.ResizedFileHolder is null)
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continue;
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if (distinctItems)
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{
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if (distinct.Contains(item.Property.Id.Value))
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continue;
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distinct.Add(item.Property.Id.Value);
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}
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results.Add(item);
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}
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}
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return new(results);
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}
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} |