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src/isnd/Controllers/Packages/PackagesController.Catalog.cs

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+using System.Data.Common;
+using System.Linq;
+using System.Threading.Tasks;
+using isnd.Services;
+using isnd.Entities;
+using Microsoft.AspNetCore.Mvc;
+using System.Collections.Generic;
+using NuGet.Versioning;
+using isnd.Data.Packages.Catalog;
+using isnd.Data.Catalog;
+using isn.abst;
+
+namespace isnd.Controllers
+{
+    public partial class PackagesController
+    {
+
+        // https://docs.microsoft.com/en-us/nuget/api/catalog-resource#versioning
+        [HttpGet("~" + Constants.ApiVersion + ApiConfig.Catalog)]
+        public async Task<IActionResult> CatalogIndex()
+        {
+            return Ok(await packageManager.GetCatalogIndexAsync());
+        }
+
+
+        [HttpGet("~" + Constants.ApiVersion + ApiConfig.Registration + "/{id}/{version?}")]
+        public async Task<IActionResult> CatalogRegistration(string id, string version)
+        {
+            if (string.IsNullOrWhiteSpace(version))
+            {
+                var query = new Data.Catalog.RegistrationPageIndexQuery
+                {
+                    Query = id,
+                    Prerelease = true
+                };
+                var index = await packageManager.GetPackageRegistrationIndexAsync(query);
+                if (index == null) return NotFound();
+                // query.TotalHits = result.Items.Select(i=>i.Items.Length).Aggregate((a,b)=>a+b);
+                return Ok(index);
+            }
+            // return a Package
+            var leaf = await packageManager.GetCatalogEntryAsync(id, version, null);
+         
+            if (null == leaf) return NotFound(new { id, version });
+            return Ok(leaf);
+        }
+
+
+
+    }
+}