2022-09-20 20:24:03 -07:00

95 lines
4.2 KiB
C#

namespace View_by_Distance.Shared.Models.Stateless.Methods;
internal abstract class Mapping
{
private static void IfNotAlreadyFileMove(string facesFileNameExtension, string file, int idValue, int normalizedPixelPercentageValue, string extensionLowered)
{
string? directoryName = Path.GetDirectoryName(file);
if (string.IsNullOrEmpty(directoryName))
throw new Exception();
string checkFile = Path.Combine(directoryName, $"{IMapping.GetDeterministicHashCodeKey(idValue, normalizedPixelPercentageValue)}{extensionLowered}{facesFileNameExtension}");
if (!File.Exists(checkFile))
File.Move(file, checkFile);
}
private static (int?, int?, List<Models.Face>?) GetReversedDeterministicHashCodeKeysFromSegments(int locationDigits, string facesFileNameExtension, bool keyValuePairsAny, Dictionary<int, List<Models.Face>> keyValuePairs, string file, string fileName)
{
int? id;
List<Models.Face>? faces;
int? normalizedPixelPercentage;
(string? Id, string? NormalizedPixelPercentage, string? ExtensionLowered, bool? Check) segments = GetSegments(locationDigits, facesFileNameExtension, fileName);
if (string.IsNullOrEmpty(segments.Id) || string.IsNullOrEmpty(segments.NormalizedPixelPercentage) || string.IsNullOrEmpty(segments.ExtensionLowered) || segments.Check is null)
{
id = null;
faces = null;
normalizedPixelPercentage = null;
}
else if (!int.TryParse(segments.Id, out int idValue) || !int.TryParse(ILocation.GetRightPadded(locationDigits, segments.NormalizedPixelPercentage), out int normalizedPixelPercentageValue))
{
id = null;
faces = null;
normalizedPixelPercentage = null;
}
else
{
id = idValue;
normalizedPixelPercentage = normalizedPixelPercentageValue;
if (segments.Check.Value || segments.NormalizedPixelPercentage.Length != locationDigits)
IfNotAlreadyFileMove(facesFileNameExtension, file, idValue, normalizedPixelPercentageValue, segments.ExtensionLowered);
if (!keyValuePairsAny || !keyValuePairs.ContainsKey(idValue))
faces = null;
else
faces = keyValuePairs[idValue];
}
return new(id, normalizedPixelPercentage, faces);
}
internal static (string?, string?, string?, bool?) GetSegments(int locationDigits, string facesFileNameExtension, string fileName)
{
string[] segments = fileName.Split('.');
string? id;
string? extensionLowered;
bool? needsFacesFileNameExtension;
string? normalizedPixelPercentage;
if (segments.Length < 3 || (segments.Length == 4 && $".{segments[3]}" != facesFileNameExtension))
{
id = null;
extensionLowered = null;
normalizedPixelPercentage = null;
needsFacesFileNameExtension = null;
}
else
{
id = segments[0];
extensionLowered = $".{segments[2]}";
needsFacesFileNameExtension = segments.Length == 3;
normalizedPixelPercentage = ILocation.GetRightPadded(locationDigits, segments[1]);
}
return new(id, normalizedPixelPercentage, extensionLowered, needsFacesFileNameExtension);
}
internal static (int?, int?, List<Models.Face>?) GetReversedDeterministicHashCodeKey(int locationDigits, string facesFileNameExtension, bool keyValuePairsAny, Dictionary<int, List<Models.Face>> keyValuePairs, string file)
{
int? id;
List<Models.Face>? faces;
int? normalizedPixelPercentage;
string fileName = Path.GetFileName(file);
if (fileName.Length < 2 || fileName[1..].Contains('-'))
{
id = null;
faces = null;
normalizedPixelPercentage = null;
}
else
(id, normalizedPixelPercentage, faces) = GetReversedDeterministicHashCodeKeysFromSegments(
locationDigits,
facesFileNameExtension,
keyValuePairsAny,
keyValuePairs,
file,
fileName);
return new(id, normalizedPixelPercentage, faces);
}
}