Move extensions methods in specific classes

BTCPayServer/Data/PaymentDataExtensions.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Services.Invoices;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Data
+{
+    public static class PaymentDataExtensions
+    {
+        public static PaymentEntity GetBlob(this Data.PaymentData paymentData, BTCPayNetworkProvider networks)
+        {
+            var unziped = ZipUtils.Unzip(paymentData.Blob);
+            var cryptoCode = "BTC";
+            if (JObject.Parse(unziped).TryGetValue("cryptoCode", out var v) && v.Type == JTokenType.String)
+                cryptoCode = v.Value<string>();
+            var network = networks.GetNetwork<BTCPayNetworkBase>(cryptoCode);
+            PaymentEntity paymentEntity = null;
+            if (network == null)
+            {
+                paymentEntity = NBitcoin.JsonConverters.Serializer.ToObject<PaymentEntity>(unziped, null);
+            }
+            else
+            {
+                paymentEntity = network.ToObject<PaymentEntity>(unziped);
+            }
+            paymentEntity.Network = network;
+            paymentEntity.Accounted = paymentData.Accounted;
+            return paymentEntity;
+        }
+    }
+}