WIP reg page

src/isnd/Helpers/PackageVersionHelpers.cs

@@ -1,15 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
 using System.Security.Claims;
+using isn.abst;
 using isnd.Data;
+using isnd.Data.Catalog;
+using isnd.Entities;
 
 namespace isnd.Helpers
 {
     public static class PackageVersionHelpers
     {
-        
+
         public static bool IsOwner(this ClaimsPrincipal user, PackageVersion v)
         {
-            var userId =  user.FindFirstValue(ClaimTypes.NameIdentifier);
+            var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);
             return v.Package.OwnerId == userId;
         }
+
+        public static RegistrationPage[] CreateRegistrationPages(this IEnumerable<RegistrationLeaf> leaves,
+        string bid)
+        {
+            List<RegistrationPage> pages = new List<RegistrationPage>();
+            var ids = leaves.Select(l => l.Entry.Id).Distinct().ToArray();
+            foreach (var id in ids)
+            {
+                var lbi = leaves.Where(l=>l.Entry.Id == id).OrderBy(l=>
+                new Version(l.Entry.version));
+                var latest = new Version(lbi.Last().Entry.version);
+                pages.Add(new RegistrationPage
+                {
+                    Id = bid + id + "/" + latest.Major + "."
+                    + latest.Minor + "."
+                    + latest.Build,
+                    Count = lbi.Count(),
+                    Lower = new Version(lbi.First().Entry.version),
+                    Upper = latest,
+                    Items = lbi.ToArray(),
+                    Parent = bid + id + "/" + ApiConfig.IndexDotJson,
+                });
+            }
+            return pages.ToArray();
+        }
     }
 }

src/isnd/Helpers/UnleashHelpers.cs

@@ -10,7 +10,7 @@ namespace isnd.Helpers
 {
     public static class UnleashHelpers
     {
-        
+
         public static IUnleash CreateUnleahClient(this IHostingEnvironment env,
         UnleashClientSettings unleashClientSettings)
         {