Add project files.

JSMR.Infrastructure/Data/Repositories/Circles/CircleWriter.cs

@@ -0,0 +1,49 @@
+using JSMR.Application.Circles.Commands.UpdateCircleStatus;
+using JSMR.Application.Circles.Contracts;
+using JSMR.Application.Circles.Ports;
+using JSMR.Domain.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace JSMR.Infrastructure.Data.Repositories.Circles;
+
+public class CircleWriter(AppDbContext context) : ICircleWriter
+{
+    public async Task<UpdateCircleStatusResponse> UpdateStatusAsync(UpdateCircleStatusRequest request, CancellationToken cancellationToken = default)
+    {
+        Circle circle = await GetCircleAsync(request.CircleId, cancellationToken);
+
+        switch (request.CircleStatus)
+        {
+            case CircleStatus.Neutral:
+                circle.Favorite = false;
+                circle.Blacklisted = false;
+                circle.Spam = false;
+                break;
+            case CircleStatus.Favorite:
+                circle.Favorite = true;
+                circle.Blacklisted = false;
+                circle.Spam = false;
+                break;
+            case CircleStatus.Blacklisted:
+                circle.Favorite = false;
+                circle.Blacklisted = true;
+                circle.Spam = false;
+                break;
+            case CircleStatus.Spam:
+                circle.Favorite = false;
+                circle.Blacklisted = false;
+                circle.Spam = true;
+                break;
+        }
+
+        await context.SaveChangesAsync(cancellationToken);
+
+        return new UpdateCircleStatusResponse(request.CircleId, request.CircleStatus);
+    }
+
+    private async Task<Circle> GetCircleAsync(int circleId, CancellationToken cancellationToken)
+    {
+        return await context.Circles.FirstOrDefaultAsync(circle => circle.CircleId == circleId, cancellationToken)
+            ?? throw new KeyNotFoundException($"Circle {circleId} not found.");
+    }
+}