Add project files.

JSMR.Infrastructure/Data/Repositories/Creators/CreatorWriter.cs

@@ -0,0 +1,41 @@
+using JSMR.Application.Creators.Commands.UpdateCreatorStatus;
+using JSMR.Application.Creators.Contracts;
+using JSMR.Application.Creators.Ports;
+using JSMR.Domain.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace JSMR.Infrastructure.Data.Repositories.Creators;
+
+public class CreatorWriter(AppDbContext context) : ICreatorWriter
+{
+    public async Task<UpdateCreatorStatusResponse> UpdateStatusAsync(UpdateCreatorStatusRequest request, CancellationToken cancellationToken = default)
+    {
+        Creator creator = await GetCreatorAsync(request.CreatorId, cancellationToken);
+
+        switch (request.CreatorStatus)
+        {
+            case CreatorStatus.Neutral:
+                creator.Favorite = false;
+                creator.Blacklisted = false;
+                break;
+            case CreatorStatus.Favorite:
+                creator.Favorite = true;
+                creator.Blacklisted = false;
+                break;
+            case CreatorStatus.Blacklisted:
+                creator.Favorite = false;
+                creator.Blacklisted = true;
+                break;
+        }
+
+        await context.SaveChangesAsync(cancellationToken);
+
+        return new UpdateCreatorStatusResponse(request.CreatorId, request.CreatorStatus);
+    }
+
+    private async Task<Creator> GetCreatorAsync(int creatorId, CancellationToken cancellationToken)
+    {
+        return await context.Creators.FirstOrDefaultAsync(creator => creator.CreatorId == creatorId, cancellationToken)
+            ?? throw new KeyNotFoundException($"Creator {creatorId} not found.");
+    }
+}