Polish 5 (#3579)

API/Entities/Metadata/SeriesMetadata.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
+using System.Linq;
 using API.Entities.Enums;
 using API.Entities.Interfaces;
 using Microsoft.EntityFrameworkCore;
@@ -101,4 +102,24 @@ public class SeriesMetadata : IHasConcurrencyToken
     {
         RowVersion++;
     }
+
+    /// <summary>
+    /// Any People in this Role present
+    /// </summary>
+    /// <param name="role"></param>
+    /// <returns></returns>
+    public bool AnyOfRole(PersonRole role)
+    {
+        return People.Any(p => p.Role == role);
+    }
+
+    /// <summary>
+    /// Are all instances of the role from Kavita+
+    /// </summary>
+    /// <param name="role"></param>
+    /// <returns></returns>
+    public bool AllKavitaPlus(PersonRole role)
+    {
+        return People.Where(p => p.Role == role).All(p => p.KavitaPlusConnection);
+    }
 }