aa/Shared/Models/LocationContainer.cs

using System.Text.Json;
using System.Text.Json.Serialization;

namespace View_by_Distance.Shared.Models;

public record LocationContainer(DateOnly? CreationDateOnly,
                                ExifDirectory? ExifDirectory,
                                object? Encoding,
                                FaceFile? FaceFile,
                                FilePath FilePath,
                                int? LengthPermyriad,
                                FilePath? LengthSource,
                                PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName? PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName,
                                int? WholePercentages)
{

    public string GetWithoutEncoding()
    {
        string result;
        WithoutEncoding withoutEncoding = new(CreationDateOnly: CreationDateOnly,
                                              ExifDirectory: ExifDirectory,
                                              FaceFile: FaceFile,
                                              FilePath: FilePath,
                                              LengthPermyriad: LengthPermyriad,
                                              LengthSource: LengthSource,
                                              PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName: PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName,
                                              WholePercentages: WholePercentages);
        result = JsonSerializer.Serialize(withoutEncoding, WithoutEncodingSourceGenerationContext.Default.WithoutEncoding);
        return result;
    }

    public static LocationContainer Get(LocationContainer locationContainer, object? encoding)
    {
        LocationContainer result;
        result = new(CreationDateOnly: locationContainer.CreationDateOnly,
                     ExifDirectory: locationContainer.ExifDirectory,
                     Encoding: encoding,
                     FaceFile: locationContainer.FaceFile,
                     FilePath: locationContainer.FilePath,
                     LengthPermyriad: locationContainer.LengthPermyriad,
                     LengthSource: locationContainer.LengthSource,
                     PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName: locationContainer.PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName,
                     WholePercentages: locationContainer.WholePercentages);
        return result;
    }

    public static LocationContainer Get(LocationContainer source, LocationContainer locationContainer, int lengthPermyriad, bool keepExifDirectory, bool keepEncoding)
    {
        LocationContainer result;
        result = new(CreationDateOnly: locationContainer.CreationDateOnly,
                     ExifDirectory: keepExifDirectory ? locationContainer.ExifDirectory : null,
                     Encoding: keepEncoding ? locationContainer.Encoding : null,
                     FaceFile: locationContainer.FaceFile,
                     FilePath: locationContainer.FilePath,
                     LengthPermyriad: lengthPermyriad,
                     LengthSource: source.FilePath,
                     PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName: locationContainer.PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName,
                     WholePercentages: locationContainer.WholePercentages);
        return result;
    }

}

internal record WithoutEncoding(DateOnly? CreationDateOnly,
                                ExifDirectory? ExifDirectory,
                                FaceFile? FaceFile,
                                FilePath FilePath,
                                int? LengthPermyriad,
                                FilePath? LengthSource,
                                PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName? PersonKeyFormattedAndKeyTicksAndDisplayDirectoryName,
                                int? WholePercentages);

[JsonSourceGenerationOptions(WriteIndented = true, DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull)]
[JsonSerializable(typeof(WithoutEncoding))]
internal partial class WithoutEncodingSourceGenerationContext : JsonSerializerContext
{
}