From 39741075b44ec555ae5bda2126076e3d9720546a Mon Sep 17 00:00:00 2001
From: padreug <padreug@aiolabs.dev>
Date: Thu, 19 Jun 2025 21:35:47 +0200
Subject: [PATCH] Enhance memo creation in LamassuTransactionProcessor: update
 memo formatting to include DCA metrics such as fiat amount and cost basis per
 BTC for both target and commission wallets. This improves clarity and
 provides better financial context for transactions.

---
 transaction_processor.py | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/transaction_processor.py b/transaction_processor.py
index 6836aea..e619f31 100644
--- a/transaction_processor.py
+++ b/transaction_processor.py
@@ -631,10 +631,17 @@ class LamassuTransactionProcessor:
                 logger.error(f"Target wallet {target_wallet_id} not found for client {client.username or client.user_id}")
                 return False
             
-            # Create descriptive memo
-            memo = f"DCA Distribution: {amount_sats} sats from Lamassu transaction {lamassu_transaction_id[:8]}..."
-            if client.username:
-                memo += f" to {client.username}"
+            # Create descriptive memo with DCA metrics
+            fiat_amount = distribution.get("fiat_amount", 0)
+            exchange_rate = distribution.get("exchange_rate", 0)
+            
+            # Calculate cost basis (fiat per BTC)
+            if exchange_rate > 0:
+                # exchange_rate is sats per fiat unit, so convert to fiat per BTC
+                cost_basis_per_btc = 100_000_000 / exchange_rate  # 100M sats = 1 BTC
+                memo = f"DCA: {amount_sats:,} sats • {fiat_amount:,} GTQ • Cost basis: {cost_basis_per_btc:,.2f} GTQ/BTC"
+            else:
+                memo = f"DCA: {amount_sats:,} sats • {fiat_amount:,} GTQ"
             
             # Create invoice in target wallet
             extra={
@@ -740,8 +747,10 @@ class LamassuTransactionProcessor:
             
             transaction_id = transaction["transaction_id"]
             
-            # Create invoice in commission wallet
-            commission_memo = f"Commission: {commission_amount_sats} sats from Lamassu transaction {transaction_id[:8]}..."
+            # Create invoice in commission wallet with DCA metrics
+            fiat_amount = transaction.get("fiat_amount", 0)
+            commission_percentage = transaction.get("commission_percentage", 0) * 100  # Convert to percentage
+            commission_memo = f"DCA Commission: {commission_amount_sats:,} sats • {commission_percentage:.1f}% • {fiat_amount:,} GTQ transaction"
             
             commission_payment = await create_invoice(
                 wallet_id=admin_config.commission_wallet_id,