chore: added backup message for cancelled subscription

Author: GrigoreMihai

CompressImagesFunction/host.json

@@ -6,7 +6,9 @@
   },
  "extensions": {
    "queues": {
-     "batchSize": 2
+     "batchSize": 2,
+     "maxDequeueCount" : 2,
+     "newBatchThreshold" : 1
    }
  }
 }

WebHook/WebHookFunction.cs

@@ -387,6 +387,18 @@ await marketplaceTable.ExecuteAsync(TableOperation.InsertOrMerge(new Marketplace
                     return hook.action;
                 case "cancelled":
                     await marketplaceTable.DropRow(hook.marketplace_purchase.account.id, hook.marketplace_purchase.account.login);
+                    if (KnownGitHubs.Plans.ContainsKey(hook.marketplace_purchase.plan.id) &&
+                        KnownGitHubs.Plans[hook.marketplace_purchase.plan.id] != 0)
+                    {
+                        await backupMessages.AddMessageAsync(new CloudQueueMessage(JsonConvert.SerializeObject(
+                            new BackupMessage
+                            {
+                                PlanId = hook.marketplace_purchase.plan.id,
+                                Price = hook.marketplace_purchase.plan.monthly_price_in_cents / 100,
+                                SaleType = "cancelled"
+                            })));
+                    }
+
                     logger.LogInformation("ProcessMarketplacePurchaseAsync/cancelled {PlanId} for {Owner}", hook.marketplace_purchase.plan.id, hook.marketplace_purchase.account.login);
                     return "cancelled";
                 default: