fix file seller plugin

Plugins/BTCPayServer.Plugins.FileSeller/BTCPayServer.Plugins.FileSeller.csproj

@@ -9,7 +9,7 @@
     <PropertyGroup>
         <Product>File Seller</Product>
         <Description>Allows you to sell files through the point of sale/crowdfund apps.</Description>
-        <Version>1.0.1</Version>
+        <Version>1.0.2</Version>
     </PropertyGroup>
     <!-- Plugin development properties -->
     <PropertyGroup>

Plugins/BTCPayServer.Plugins.FileSeller/FileSellerPlugin.cs

@@ -9,7 +9,7 @@ public class FileSellerPlugin : BaseBTCPayServerPlugin
 {
     public override IBTCPayServerPlugin.PluginDependency[] Dependencies { get; } =
     {
-        new() { Identifier = nameof(BTCPayServer), Condition = ">=1.11.1" }
+        new() { Identifier = nameof(BTCPayServer), Condition = ">=1.11.4" }
     };
     public override void Execute(IServiceCollection applicationBuilder)
     {

Plugins/BTCPayServer.Plugins.FileSeller/FileSellerService.cs

@@ -46,28 +46,38 @@ namespace BTCPayServer.Plugins.FileSeller
         protected override async Task ProcessEvent(object evt, CancellationToken cancellationToken)
         {
             if (evt is not InvoiceEvent invoiceEvent) return;
-            Dictionary<string, int> cartItems = null;
+            List<PosCartItem> cartItems = null;
-            if (invoiceEvent.Name is not (InvoiceEvent.Completed or InvoiceEvent.MarkedCompleted or InvoiceEvent.Confirmed  ))
+            if (invoiceEvent.Name is not (InvoiceEvent.Completed or InvoiceEvent.MarkedCompleted
+                or InvoiceEvent.Confirmed))
             {
                 return;
             }
+
             var appIds = AppService.GetAppInternalTags(invoiceEvent.Invoice);
 
             if (!appIds.Any())
             {
                 return;
             }
+
             if (invoiceEvent.Invoice.Metadata.AdditionalData.TryGetValue("fileselleractivated", out var activated))
             {
                 return;
             }
+
             if ((!string.IsNullOrEmpty(invoiceEvent.Invoice.Metadata.ItemCode) ||
                  AppService.TryParsePosCartItems(invoiceEvent.Invoice.Metadata.PosData, out cartItems)))
             {
-                var items = cartItems ?? new Dictionary<string, int>();
+                var items = cartItems ?? new List<PosCartItem>();
-                if (!string.IsNullOrEmpty(invoiceEvent.Invoice.Metadata.ItemCode))
+                if (!string.IsNullOrEmpty(invoiceEvent.Invoice.Metadata.ItemCode) &&
+                    !items.Exists(cartItem => cartItem.Id == invoiceEvent.Invoice.Metadata.ItemCode))
                 {
-                    items.TryAdd(invoiceEvent.Invoice.Metadata.ItemCode, 1);
+                    items.Add(new PosCartItem()
+                    {
+                        Id = invoiceEvent.Invoice.Metadata.ItemCode,
+                        Count = 1,
+                        Price = invoiceEvent.Invoice.Price
+                    });
                 }
 
                 var apps = (await _appService.GetApps(appIds)).Select(data =>
@@ -87,7 +97,7 @@ namespace BTCPayServer.Plugins.FileSeller
                     }
                 }).Where(tuple => tuple.Data != null && tuple.Items.Any(item =>
                     item.AdditionalData?.ContainsKey("file") is true &&
-                        items.ContainsKey(item.Id)));
+                    items.Exists(cartItem => cartItem.Id == item.Id)));
 
                 var fileIds = new HashSet<string>();
 
@@ -95,11 +105,10 @@ namespace BTCPayServer.Plugins.FileSeller
                 {
                     foreach (var item1 in valueTuple.Items.Where(item =>
                                  item.AdditionalData?.ContainsKey("file") is true &&
-                                     items.ContainsKey(item.Id)))
+                                 items.Exists(cartItem => cartItem.Id == item.Id)))
                     {
                         var fileId = item1.AdditionalData["file"].Value<string>();
                         fileIds.Add(fileId);
-                            
                     }
                 }
 
@@ -107,7 +116,8 @@ namespace BTCPayServer.Plugins.FileSeller
                 {
                     Id = fileIds.ToArray()
                 });
-                    var productLinkTasks =  loadedFiles.ToDictionary(file =>file,file => _fileService.GetTemporaryFileUrl(UrlToUse, file.Id, DateTimeOffset.MaxValue, true));
+                var productLinkTasks = loadedFiles.ToDictionary(file => file,
+                    file => _fileService.GetTemporaryFileUrl(UrlToUse, file.Id, DateTimeOffset.MaxValue, true));
 
                 var res = await Task.WhenAll(productLinkTasks.Values);
 
@@ -122,22 +132,20 @@ namespace BTCPayServer.Plugins.FileSeller
                     receiptData.Add("Downloadable Content", JObject.FromObject(productTitleToFile));
 
                     if (invoiceEvent.Invoice.Metadata.AdditionalData?.TryGetValue("receiptData",
-                                out var existingReceiptData) is true && existingReceiptData is JObject existingReceiptDataObj  )
+                            out var existingReceiptData) is true &&
+                        existingReceiptData is JObject existingReceiptDataObj)
                     {
                         receiptData.Merge(existingReceiptDataObj);
-                            
                     }
 
                     invoiceEvent.Invoice.Metadata.SetAdditionalData("receiptData", receiptData);
-                        
                 }
+
                 invoiceEvent.Invoice.Metadata.SetAdditionalData("fileselleractivated", "true");
                 await _invoiceRepository.UpdateInvoiceMetadata(invoiceEvent.InvoiceId, invoiceEvent.Invoice.StoreId,
                     invoiceEvent.Invoice.Metadata.ToJObject());
-
-                
-
             }
+
             await base.ProcessEvent(evt, cancellationToken);
         }
     }