2023-10-20 19:37:19 -07:00

91 lines
4.9 KiB
C#

using MetadataExtractor;
using System.Collections.ObjectModel;
using System.Text.Json;
using View_by_Distance.Shared.Models;
using View_by_Distance.Shared.Models.Methods;
using View_by_Distance.Shared.Models.Properties;
namespace View_by_Distance.Metadata.Models;
public class A_Metadata : IMetadata<MetadataExtractor.Directory>
{
private readonly bool _PropertiesChangedForMetadata;
private readonly IPropertyConfiguration _PropertyConfiguration;
private readonly bool _ForceMetadataLastWriteTimeToCreationTime;
private readonly IReadOnlyDictionary<string, string[]> _FileGroups;
public A_Metadata(IPropertyConfiguration propertyConfiguration, bool forceMetadataLastWriteTimeToCreationTime, bool propertiesChangedForMetadata)
{
_PropertyConfiguration = propertyConfiguration;
_PropertiesChangedForMetadata = propertiesChangedForMetadata;
_ForceMetadataLastWriteTimeToCreationTime = forceMetadataLastWriteTimeToCreationTime;
string bResultsFullGroupDirectory = Property.Models.Stateless.IResult.GetResultsFullGroupDirectory(_PropertyConfiguration,
nameof(A_Metadata),
string.Empty,
includeResizeGroup: false,
includeModel: false,
includePredictorModel: false);
_FileGroups = Shared.Models.Stateless.Methods.IPath.GetKeyValuePairs(propertyConfiguration, bResultsFullGroupDirectory, [propertyConfiguration.ResultSingleton]);
}
public ReadOnlyDictionary<string, MetadataExtractorDirectory> GetMetadataCollection(string file)
{
Dictionary<string, MetadataExtractorDirectory>? results;
string fileName = Path.GetFileName(file);
string fileExtensionLowered = Path.GetExtension(file).ToLower();
string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(file);
(_, int directoryIndex) = Shared.Models.Stateless.Methods.IPath.GetDirectoryNameAndIndex(_PropertyConfiguration.ResultAllInOneSubdirectoryLength, fileName);
FileInfo fileInfo = new(Path.Combine(_FileGroups[_PropertyConfiguration.ResultSingleton][directoryIndex], $"{fileNameWithoutExtension}{fileExtensionLowered}.json"));
if (_ForceMetadataLastWriteTimeToCreationTime && !fileInfo.Exists && File.Exists(Path.ChangeExtension(fileInfo.FullName, ".delete")))
{
File.Move(Path.ChangeExtension(fileInfo.FullName, ".delete"), fileInfo.FullName);
fileInfo.Refresh();
}
if (_ForceMetadataLastWriteTimeToCreationTime && fileInfo.Exists && fileInfo.LastWriteTime != fileInfo.CreationTime)
{
File.SetLastWriteTime(fileInfo.FullName, fileInfo.CreationTime);
fileInfo.Refresh();
}
if (_PropertiesChangedForMetadata)
results = null;
else if (!fileInfo.Exists)
results = null;
else if (!fileInfo.FullName.EndsWith(".json") && !fileInfo.FullName.EndsWith(".old"))
throw new ArgumentException("must be a *.json file");
else
{
string json = File.ReadAllText(fileInfo.FullName);
try
{
results = Stateless.Methods.Metadata.Deserialize(json);
if (results is null)
throw new Exception();
}
catch (Exception)
{
results = null;
}
}
if (results is null || results.Count == 0)
{
IReadOnlyList<MetadataExtractor.Directory> directories = ImageMetadataReader.ReadMetadata(file);
results = Stateless.Methods.Metadata.Covert(directories);
string json = JsonSerializer.Serialize(results, DictionaryStringMetadataExtractorDirectorySourceGenerationContext.Default.DictionaryStringMetadataExtractorDirectory);
if (Shared.Models.Stateless.Methods.IPath.WriteAllText(fileInfo.FullName, json, updateDateWhenMatches: false, compareBeforeWrite: true, updateToWhenMatches: null) && _ForceMetadataLastWriteTimeToCreationTime)
{
File.SetLastWriteTime(fileInfo.FullName, fileInfo.CreationTime);
fileInfo.Refresh();
}
}
return new(results);
}
(DateTime?, DateTime?[]) IMetadata<MetadataExtractor.Directory>.GetDateTimes(FileHolder fileHolder, IReadOnlyList<MetadataExtractor.Directory> directories)
{
List<DateTime?> results = [];
DateTime? result = null;
return new(result, results.ToArray());
}
}