Add reason of refund in memo

Signed-off-by: alfred richardsn <rchrdsn@protonmail.ch>

src/escrow/blockchain/__init__.py

@@ -66,7 +66,9 @@ async def get_limits(self, asset: str) -> InsuranceLimits:
         """
 
     @abstractmethod
-    async def transfer(self, to: str, amount: Decimal, asset: str) -> str:
+    async def transfer(
+        self, to: str, amount: Decimal, asset: str, memo: str = ""
+    ) -> str:
         """Transfer ``asset`` from ``self.address``.
 
         :param to: Address assets are transferred to.
@@ -245,7 +247,7 @@ async def _refund_callback(
 
         user = offer["init"] if offer["type"] == "buy" else offer["counter"]
         answer = _("There are mistakes in your transfer:", locale=user["locale"])
-
+        points = []
         for reason in reasons:
             if reason == "asset":
                 point = _("wrong asset", locale=user["locale"])
@@ -255,6 +257,7 @@ async def _refund_callback(
                 point = _("wrong memo", locale=user["locale"])
             else:
                 continue
+            points.append(point)
             answer += "\n• " + point
 
         answer += "\n\n" + _(
@@ -266,7 +269,12 @@ async def _refund_callback(
             {"_id": offer["_id"]}, {"$set": {"transaction_time": time()}}
         )
         if is_confirmed:
-            trx_url = await self.transfer(from_address, amount, asset)
+            trx_url = await self.transfer(
+                from_address,
+                amount,
+                asset,
+                memo="reason of refund: " + ", ".join(points),
+            )
             answer = markdown.link(
                 _("Transaction is refunded.", locale=user["locale"]), trx_url
             )

src/escrow/blockchain/golos_blockchain.py

@@ -114,7 +114,7 @@ async def get_limits(self, asset: str):
         limits = {"GOLOS": InsuranceLimits(Decimal("10000"), Decimal("100000"))}
         return limits.get(asset)
 
-    async def transfer(self, to: str, amount: Decimal, asset: str):
+    async def transfer(self, to: str, amount: Decimal, asset: str, memo: str = ""):
         with open(Config.WIF_FILENAME) as wif_file:
             transaction = await get_running_loop().run_in_executor(
                 None,
@@ -124,6 +124,7 @@ async def transfer(self, to: str, amount: Decimal, asset: str):
                 self.address,
                 json.load(wif_file)["golos"],
                 asset,
+                memo,
             )
         return self.trx_url(transaction["id"])