Re-write

Shared/Models/DistanceHolder.cs

@@ -0,0 +1,42 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace View_by_Distance.Shared.Models;
+
+public class DistanceHolder : Properties.IDistanceHolder
+{
+
+    public Face Face { init; get; }
+    public FileHolder FileHolder { init; get; }
+    public int Id { init; get; }
+    public string JSONDirectory { init; get; }
+    public Location? Location { init; get; }
+    public string TSVDirectory { init; get; }
+    public double Sort { get; set; }
+
+    [JsonConstructor]
+    public DistanceHolder(
+        Face face,
+        FileHolder fileHolder,
+        int id,
+        string jsonDirectory,
+        Location? location,
+        string tsvDirectory
+    )
+    {
+        FileHolder = fileHolder;
+        Sort = double.MaxValue;
+        Face = face;
+        Id = id;
+        JSONDirectory = jsonDirectory;
+        Location = location;
+        TSVDirectory = tsvDirectory;
+    }
+
+    public override string ToString()
+    {
+        string result = JsonSerializer.Serialize(this, new JsonSerializerOptions() { WriteIndented = true });
+        return result;
+    }
+
+}