Initial commit.

Wino.Core.Domain/Interfaces/IStoreManagementService.cs

@@ -0,0 +1,19 @@
+using System.Threading.Tasks;
+using Wino.Core.Domain.Enums;
+using Wino.Core.Domain.Models.Store;
+
+namespace Wino.Core.Domain.Interfaces
+{
+    public interface IStoreManagementService
+    {
+        /// <summary>
+        /// Checks whether user has the type of an add-on purchased.
+        /// </summary>
+        Task<bool> HasProductAsync(StoreProductType productType);
+
+        /// <summary>
+        /// Attempts to purchase the given add-on.
+        /// </summary>
+        Task<StorePurchaseResult> PurchaseAsync(StoreProductType productType);
+    }
+}