Initial commit.

Wino.Core.Domain/Interfaces/IBackgroundTaskService.cs

@@ -0,0 +1,19 @@
+using System.Threading.Tasks;
+
+namespace Wino.Core.Domain.Interfaces
+{
+    public interface IBackgroundTaskService
+    {
+        /// <summary>
+        /// Manages background task registrations, requests access if needed, checks the statusses of them etc.
+        /// </summary>
+        /// <exception cref="BackgroundTaskExecutionRequestDeniedException">If the access request is denied for some reason.</exception>
+        /// <exception cref="BackgroundTaskRegistrationFailedException">If one of the requires background tasks are failed during registration.</exception>
+        Task HandleBackgroundTaskRegistrations();
+
+        /// <summary>
+        /// Unregisters all existing background tasks. Useful for migrations.
+        /// </summary>
+        void UnregisterAllBackgroundTask();
+    }
+}