AppSettings and Configuration changes,

major changes to E_Distance and minor for D_Face

Compare/Models/Binder/AppSettings.cs

@@ -1,4 +1,4 @@
-using System.ComponentModel.DataAnnotations;
+using Microsoft.Extensions.Configuration;
 using System.Text.Json;
 
 namespace View_by_Distance.Compare.Models.Binder;
@@ -6,16 +6,13 @@ namespace View_by_Distance.Compare.Models.Binder;
 public class AppSettings
 {
 
-    [Display(Name = "Company"), Required] public string Company { get; set; }
-    [Display(Name = "Working Directory Name"), Required] public string WorkingDirectoryName { get; set; }
-    [Display(Name = "Max Degree Of Parallelism"), Required] public int? MaxDegreeOfParallelism { get; set; }
+#nullable disable
 
-    public AppSettings()
-    {
-        Company = string.Empty;
-        WorkingDirectoryName = string.Empty;
-        MaxDegreeOfParallelism = -1;
-    }
+    public string Company { get; set; }
+    public int? MaxDegreeOfParallelism { get; set; }
+    public string WorkingDirectoryName { get; set; }
+
+#nullable restore
 
     public override string ToString()
     {
@@ -23,4 +20,25 @@ public class AppSettings
         return result;
     }
 
+    private static Models.AppSettings Get(AppSettings appSettings)
+    {
+        Models.AppSettings result;
+        if (appSettings.MaxDegreeOfParallelism is null)
+            throw new NullReferenceException(nameof(appSettings.MaxDegreeOfParallelism));
+        result = new(
+            appSettings.Company,
+            appSettings.MaxDegreeOfParallelism.Value,
+            appSettings.WorkingDirectoryName
+        );
+        return result;
+    }
+
+    public static Models.AppSettings Get(IConfigurationRoot configurationRoot)
+    {
+        Models.AppSettings result;
+        AppSettings appSettings = configurationRoot.Get<AppSettings>();
+        result = Get(appSettings);
+        return result;
+    }
+
 }