update to add thumb creator work

src/protagonist/DLCS.Model/Assets/Asset.cs

@@ -4,6 +4,7 @@
 using System.Linq;
 using DLCS.Core.Collections;
 using DLCS.Core.Types;
+using DLCS.Model.Assets.Metadata;
 
 namespace DLCS.Model.Assets;
 
@@ -99,6 +100,11 @@ public IEnumerable<string> TagsList
     /// A list of image delivery channels attached to this asset
     /// </summary>
     public ICollection<ImageDeliveryChannel> ImageDeliveryChannels { get; set; }
+
+    /// <summary>
+    /// A list of metadata attached to this asset
+    /// </summary>
+    public ICollection<AssetApplicationMetadata> AssetApplicationMetadata { get; set; }
 
     public Asset()
     {

src/protagonist/DLCS.Model/Assets/AssetApplicationMetadata.cs → src/protagonist/DLCS.Model/Assets/Metadata/AssetApplicationMetadata.cs

@@ -1,8 +1,7 @@
 using System;
-using System.Collections.Generic;
 using DLCS.Core.Types;
 
-namespace DLCS.Model.Assets;
+namespace DLCS.Model.Assets.Metadata;
 
 public class AssetApplicationMetadata
 {

src/protagonist/DLCS.Model/Assets/Metadata/AssetApplicationMetadataKeys.cs

@@ -0,0 +1,8 @@
+using System.Dynamic;
+
+namespace DLCS.Model.Assets.Metadata;
+
+public static class AssetApplicationMetadataKeys
+{
+    public const string ThumbnailPolicy = "ThumbnailPolicy";
+}

src/protagonist/DLCS.Model/Assets/Metadata/IAssetApplicationMetadataRepository.cs

@@ -0,0 +1,15 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using DLCS.Core.Types;
+
+namespace DLCS.Model.Assets.Metadata;
+
+public interface IAssetApplicationMetadataRepository
+{
+    public Task<List<int[]>> GetThumbnailSizes(AssetId assetId);
+
+    public Task<AssetApplicationMetadata> AddApplicationMetadata(
+        AssetApplicationMetadata metadata, 
+        CancellationToken cancellationToken = default);
+}

src/protagonist/DLCS.Repository/Assets/AssetApplicationMetadataRepository.cs

@@ -0,0 +1,34 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using DLCS.Core.Types;
+using DLCS.Model.Assets.Metadata;
+
+namespace DLCS.Repository.Assets;
+
+public class AssetApplicationMetadataRepository : IAssetApplicationMetadataRepository
+{
+    private readonly DlcsContext dlcsContext;
+
+    public AssetApplicationMetadataRepository(DlcsContext dlcsContext)
+    {
+        this.dlcsContext = dlcsContext;
+    }
+
+    public async Task<List<int[]>> GetThumbnailSizes(AssetId assetId)
+    {
+
+
+        return new List<int[]>();
+    }
+
+    public async Task<AssetApplicationMetadata> AddApplicationMetadata(
+        AssetApplicationMetadata metadata, 
+        CancellationToken cancellationToken = default)
+    {
+        var databaseMetadata= await dlcsContext.AssetApplicationMetadata.AddAsync(metadata, cancellationToken);
+        await dlcsContext.SaveChangesAsync(cancellationToken);
+
+        return databaseMetadata.Entity;
+    }
+}

src/protagonist/DLCS.Repository/Assets/Thumbs/ThumbsManager.cs

@@ -1,7 +1,9 @@
+using System;
 using System.Threading.Tasks;
 using DLCS.AWS.S3;
 using DLCS.Core.Types;
 using DLCS.Model.Assets;
+using DLCS.Model.Assets.Metadata;
 using DLCS.Model.Policies;
 using IIIF;
 using Newtonsoft.Json;
@@ -15,14 +17,17 @@ public abstract class ThumbsManager
 {
     protected readonly IBucketWriter BucketWriter;
     protected readonly IStorageKeyGenerator StorageKeyGenerator;
+    protected readonly IAssetApplicationMetadataRepository AssetApplicationMetadataRepository;
 
     public ThumbsManager(
         IBucketWriter bucketWriter,
-        IStorageKeyGenerator storageKeyGenerator
+        IStorageKeyGenerator storageKeyGenerator,
+        IAssetApplicationMetadataRepository assetApplicationMetadataRepository
     )
     {
         BucketWriter = bucketWriter;
         StorageKeyGenerator = storageKeyGenerator;
+        AssetApplicationMetadataRepository = assetApplicationMetadataRepository;
     }
 
     protected static Size GetMaxAvailableThumb(Asset asset, ThumbnailPolicy policy)
@@ -33,8 +38,18 @@ protected static Size GetMaxAvailableThumb(Asset asset, ThumbnailPolicy policy)
 
     protected async Task CreateSizesJson(AssetId assetId, ThumbnailSizes thumbnailSizes)
     {
+        var serializedThumbnailSizes = JsonConvert.SerializeObject(thumbnailSizes);
         var sizesDest = StorageKeyGenerator.GetThumbsSizesJsonLocation(assetId);
-        await BucketWriter.WriteToBucket(sizesDest, JsonConvert.SerializeObject(thumbnailSizes),
+        await BucketWriter.WriteToBucket(sizesDest, serializedThumbnailSizes,
             "application/json");
+        await AssetApplicationMetadataRepository.AddApplicationMetadata(new AssetApplicationMetadata()
+        {
+            ImageId = assetId,
+            MetadataType = AssetApplicationMetadataKeys.ThumbnailPolicy,
+            MetadataValue = serializedThumbnailSizes,
+            Created = DateTime.UtcNow,
+            Modified = DateTime.UtcNow
+        });
+
     }
 }

src/protagonist/DLCS.Repository/DlcsContext.cs

@@ -9,6 +9,7 @@
 using DLCS.Core.Types;
 using DLCS.Model.Assets;
 using DLCS.Model.Assets.CustomHeaders;
+using DLCS.Model.Assets.Metadata;
 using DLCS.Model.Assets.NamedQueries;
 using DLCS.Model.Auth.Entities;
 using DLCS.Model.Customers;
@@ -683,11 +684,16 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
 
         modelBuilder.Entity<AssetApplicationMetadata>(entity =>
         {
+            entity.Property(e => e.Id).HasMaxLength(100);
             entity.Property(e => e.ImageId).IsRequired().HasConversion(
                 aId => aId.ToString(),
                 id => AssetId.FromString(id));
             entity.Property(e => e.MetadataType).IsRequired();
             entity.Property(e => e.MetadataValue).IsRequired().HasColumnType("jsonb");
+            
+            entity.HasOne(e => e.Asset)
+                .WithMany(e => e.AssetApplicationMetadata)
+                .HasForeignKey(e => e.ImageId);
         });
 
         OnModelCreatingPartial(modelBuilder);

src/protagonist/DLCS.Repository/Migrations/20240411134159_adding AssetApplicationMetadata table.cs → src/protagonist/DLCS.Repository/Migrations/20240411144218_adding AssetApplicationMetadata table.cs

@@ -14,10 +14,9 @@ protected override void Up(MigrationBuilder migrationBuilder)
                 name: "AssetApplicationMetadata",
                 columns: table => new
                 {
-                    Id = table.Column<int>(type: "integer", nullable: false)
+                    Id = table.Column<int>(type: "integer", maxLength: 100, nullable: false)
                         .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
-                    ImageId = table.Column<string>(type: "text", nullable: false),
-                    AssetId = table.Column<string>(type: "character varying(500)", nullable: false),
+                    ImageId = table.Column<string>(type: "character varying(500)", nullable: false),
                     MetadataType = table.Column<string>(type: "text", nullable: false),
                     MetadataValue = table.Column<string>(type: "jsonb", nullable: false),
                     Created = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
@@ -27,17 +26,17 @@ protected override void Up(MigrationBuilder migrationBuilder)
                 {
                     table.PrimaryKey("PK_AssetApplicationMetadata", x => x.Id);
                     table.ForeignKey(
-                        name: "FK_AssetApplicationMetadata_Images_AssetId",
-                        column: x => x.AssetId,
+                        name: "FK_AssetApplicationMetadata_Images_ImageId",
+                        column: x => x.ImageId,
                         principalTable: "Images",
                         principalColumn: "Id",
                         onDelete: ReferentialAction.Cascade);
                 });
 
             migrationBuilder.CreateIndex(
-                name: "IX_AssetApplicationMetadata_AssetId",
+                name: "IX_AssetApplicationMetadata_ImageId",
                 table: "AssetApplicationMetadata",
-                column: "AssetId");
+                column: "ImageId");
         }
 
         protected override void Down(MigrationBuilder migrationBuilder)