Add project files.

Events/PuzzleSyncEvent.cs

@@ -0,0 +1,41 @@
+
+using ConnectionsAPI.Database;
+using ConnectionsAPI.Utility;
+using System.Diagnostics;
+
+namespace ConnectionsAPI.Events
+{
+    public class PuzzleSyncEvent : IEvent { }
+
+    public class PuzzleSyncHandler(ILogger<PuzzleSyncHandler> logger, IServiceScopeFactory scopeFactory) : IEventHandler<PuzzleSyncEvent>
+    {
+        private readonly ILogger<PuzzleSyncHandler> _logger = logger;
+        private readonly IServiceScopeFactory _scopeFactory = scopeFactory;
+
+        public async Task HandleAsync(PuzzleSyncEvent eventModel, CancellationToken ct)
+        {
+            Stopwatch stopwatch = Stopwatch.StartNew();
+            _logger.LogInformation("Received Puzzle Sync Event");
+            try
+            {
+                // construct scope 
+                using var scope = _scopeFactory.CreateScope();
+                // get dependencies
+                ConnectionsContext db = scope.ServiceProvider.GetRequiredService<ConnectionsContext>();
+                HttpClient http = scope.ServiceProvider.GetRequiredService<IHttpClientFactory>().CreateClient();
+                ILogger<SyncUtility> syncLogger = scope.ServiceProvider.GetRequiredService<ILogger<SyncUtility>>();
+                // do the work
+                await new SyncUtility(db, syncLogger, http).SyncPuzzlesAsync(ct);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error while executing puzzle sync event");
+            }
+            finally
+            {
+                stopwatch.Stop();
+            }
+            _logger.LogInformation("Puzzle Sync Event finished in {ts}", stopwatch.Elapsed);
+        }
+    }
+}