MetadataFetching:

- Jikan (MAL) linking, fetching/updating

API/Schema/MetadataFetchers/MetadataEntry.cs

@@ -0,0 +1,35 @@
+using Microsoft.EntityFrameworkCore;
+using Newtonsoft.Json;
+
+namespace API.Schema.MetadataFetchers;
+
+[PrimaryKey("MangaId", "MetadataFetcherName")]
+public class MetadataEntry
+{
+    [JsonIgnore]
+    public Manga Manga { get; init; } = null!;
+    public string MangaId  { get; init; }
+    [JsonIgnore]
+    public MetadataFetcher MetadataFetcher { get; init; } = null!;
+    public string MetadataFetcherName { get; init; }
+    public string Identifier { get; init; }
+
+    public MetadataEntry(MetadataFetcher fetcher, Manga manga, string identifier)
+    {
+        this.Manga = manga;
+        this.MangaId = manga.MangaId;
+        this.MetadataFetcher = fetcher;
+        this.MetadataFetcherName = fetcher.MetadataFetcherName;
+        this.Identifier = identifier;
+    }
+
+    /// <summary>
+    /// EFCORE only!!!!
+    /// </summary>
+    internal MetadataEntry(string mangaId, string identifier, string metadataFetcherName)
+    {
+        this.MangaId = mangaId;
+        this.Identifier = identifier;
+        this.MetadataFetcherName = metadataFetcherName;
+    }
+}