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deterministicHashCode

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This commit is contained in:
Mike Phares
2023-10-23 09:45:18 -07:00
parent 42d202e287
commit 05c27a891b
11 changed files with 240 additions and 63 deletions
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23
Shared/Models/DeterministicHashCode.cs Normal file
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@ -0,0 +1,23 @@
using System.Text.Json;
using System.Text.Json.Serialization;
namespace View_by_Distance.Shared.Models;
public record DeterministicHashCode(int? Height,
int? Id,
int? Width)
{
public override string ToString()
{
string result = JsonSerializer.Serialize(this, DeterministicHashCodeSourceGenerationContext.Default.DeterministicHashCode);
return result;
}
}
[JsonSourceGenerationOptions(WriteIndented = true)]
[JsonSerializable(typeof(DeterministicHashCode))]
public partial class DeterministicHashCodeSourceGenerationContext : JsonSerializerContext
{
}

1
Shared/Models/ExifDirectory.cs
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@ -10,6 +10,7 @@ public record ExifDirectory(AviDirectory AviDirectory,
GifHeaderDirectory GifHeaderDirectory,
GpsDirectory GpsDirectory,
int? Height,
int? Id,
string JsonFile,
JpegDirectory JpegDirectory,
PhotoshopDirectory PhotoshopDirectory,

28
Shared/Models/FilePath.cs Normal file
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@ -0,0 +1,28 @@
using System.Text.Json;
using System.Text.Json.Serialization;
namespace View_by_Distance.Shared.Models;
public record FilePath(string DirectoryName,
string ExtensionLowered,
string FullName,
int? Id,
bool IsIdFormat,
bool IsPaddedIdFormat,
string Name,
string NameWithoutExtension)
{
public override string ToString()
{
string result = JsonSerializer.Serialize(this, FilePathSourceGenerationContext.Default.FilePath);
return result;
}
}
[JsonSourceGenerationOptions(WriteIndented = true)]
[JsonSerializable(typeof(FilePath))]
public partial class FilePathSourceGenerationContext : JsonSerializerContext
{
}

24
Shared/Models/NameWithoutExtension.cs
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@ -1,24 +0,0 @@
using System.Text.Json;
using System.Text.Json.Serialization;
namespace View_by_Distance.Shared.Models;
public record NameWithoutExtension(string FileNameWithoutExtension,
int? Id,
bool IsIdFormat,
bool IsPaddedIdFormat)
{
public override string ToString()
{
string result = JsonSerializer.Serialize(this, NameWithoutExtensionSourceGenerationContext.Default.NameWithoutExtension);
return result;
}
}
[JsonSourceGenerationOptions(WriteIndented = true)]
[JsonSerializable(typeof(NameWithoutExtension))]
public partial class NameWithoutExtensionSourceGenerationContext : JsonSerializerContext
{
}

37
Shared/Models/Stateless/Id.cs
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@ -20,15 +20,27 @@ internal abstract class Id
return result;
}
internal static NameWithoutExtension GetNameWithoutExtension(IMetadataConfiguration configuration, string file)
internal static FilePath GetFilePath(FilePath filePath, string file)
{
NameWithoutExtension result;
FilePath result;
string fileName = Path.GetFileName(file);
string fileExtensionLowered = Path.GetExtension(file).ToLower();
result = new(filePath.DirectoryName, fileExtensionLowered, file, filePath.Id, filePath.IsIdFormat, filePath.IsPaddedIdFormat, fileName, filePath.NameWithoutExtension);
return result;
}
internal static FilePath GetFilePath(IMetadataConfiguration configuration, string file)
{
FilePath result;
int? id;
short? multiplier;
char negativeMarker;
int absoluteValueOfId;
string fileName = Path.GetFileName(file);
string fileExtensionLowered = Path.GetExtension(file).ToLower();
string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(file);
short sortOrderOnlyLengthIndex = IId.GetSortOrderOnlyLengthIndex(configuration.Offset);
string fileDirectoryName = Path.GetDirectoryName(file) ?? throw new NullReferenceException();
bool nameWithoutExtensionIsIdFormat = IId.NameWithoutExtensionIsIdFormat(fileNameWithoutExtension);
bool nameWithoutExtensionIsPaddedIdFormat = IId.NameWithoutExtensionIsPaddedIdFormat(fileNameWithoutExtension, sortOrderOnlyLengthIndex);
if (!nameWithoutExtensionIsIdFormat && !nameWithoutExtensionIsPaddedIdFormat)
@ -58,7 +70,26 @@ internal abstract class Id
id = null;
}
}
result = new(fileNameWithoutExtension, id, nameWithoutExtensionIsIdFormat, nameWithoutExtensionIsPaddedIdFormat);
result = new(fileDirectoryName, fileExtensionLowered, file, id, nameWithoutExtensionIsIdFormat, nameWithoutExtensionIsPaddedIdFormat, fileName, fileNameWithoutExtension);
return result;
}
internal static int GetDeterministicHashCode(byte[] value)
{
int result;
unchecked
{
int hash1 = (5381 << 16) + 5381;
int hash2 = hash1;
for (int i = 0; i < value.Length; i += 2)
{
hash1 = ((hash1 << 5) + hash1) ^ value[i];
if (i == value.Length - 1)
break;
hash2 = ((hash2 << 5) + hash2) ^ value[i + 1];
}
result = hash1 + (hash2 * 1566083941);
}
return result;
}

18
Shared/Models/Stateless/Methods/IId.cs
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@ -33,9 +33,19 @@ public interface IId
static short GetSortOrderOnlyLengthIndex(int offset) =>
(short)(offset.ToString().Length + 3);
NameWithoutExtension TestStatic_GetNameWithoutExtension(IMetadataConfiguration configuration, string file) =>
GetNameWithoutExtension(configuration, file);
static NameWithoutExtension GetNameWithoutExtension(IMetadataConfiguration configuration, string file) =>
Id.GetNameWithoutExtension(configuration, file);
FilePath TestStatic_GetFilePath(FilePath filePath, string file) =>
GetFilePath(filePath, file);
static FilePath GetFilePath(FilePath filePath, string file) =>
Id.GetFilePath(filePath, file);
FilePath TestStatic_GetFilePath(IMetadataConfiguration configuration, string file) =>
GetFilePath(configuration, file);
static FilePath GetFilePath(IMetadataConfiguration configuration, string file) =>
Id.GetFilePath(configuration, file);
int TestStatic_GetDeterministicHashCode(byte[] value) =>
GetDeterministicHashCode(value);
static int GetDeterministicHashCode(byte[] value) =>
Id.GetDeterministicHashCode(value);
}

9
Shared/Models/Stateless/Methods/IRename.cs Normal file
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@ -0,0 +1,9 @@
namespace View_by_Distance.Shared.Models.Stateless.Methods;
public interface IRename
{
string[]? ConvertAndGetFfmpegFiles(FilePath filePath);
DeterministicHashCode GetDeterministicHashCode(FilePath filePath);
}