From d136815552b8bb532573b356973c577b25a70b3a Mon Sep 17 00:00:00 2001
From: woodser <woodser@protonmail.com>
Date: Mon, 13 Sep 2021 18:11:06 -0400
Subject: [PATCH] support creating offer from grpc api

fee payment currency is xmr
scale atomic units from grpc api to centineros for consistency
implement ParsingUtils.atomicUnitsToCentineros()
---
 core/src/main/java/bisq/core/offer/OfferUtil.java    |  2 +-
 core/src/main/java/bisq/core/util/ParsingUtils.java  | 12 ++++++++++++
 .../java/bisq/daemon/grpc/GrpcOffersService.java     |  6 +++---
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/core/src/main/java/bisq/core/offer/OfferUtil.java b/core/src/main/java/bisq/core/offer/OfferUtil.java
index 8ea47fd2be..714a27f5b9 100644
--- a/core/src/main/java/bisq/core/offer/OfferUtil.java
+++ b/core/src/main/java/bisq/core/offer/OfferUtil.java
@@ -91,7 +91,7 @@ public class OfferUtil {
     private final TradeStatisticsManager tradeStatisticsManager;
 
     private final Predicate<String> isValidFeePaymentCurrencyCode = (c) ->
-            c.equalsIgnoreCase("BSQ") || c.equalsIgnoreCase("BTC");
+            c.equalsIgnoreCase("XMR");
 
     @Inject
     public OfferUtil(AccountAgeWitnessService accountAgeWitnessService,
diff --git a/core/src/main/java/bisq/core/util/ParsingUtils.java b/core/src/main/java/bisq/core/util/ParsingUtils.java
index b840eebb84..b248b48419 100644
--- a/core/src/main/java/bisq/core/util/ParsingUtils.java
+++ b/core/src/main/java/bisq/core/util/ParsingUtils.java
@@ -19,6 +19,8 @@ public class ParsingUtils {
 
     /**
      * Multiplier to convert centineros (the base XMR unit of Coin) to atomic units.
+     * 
+     * TODO: change base unit to atomic units and long
      */
     private static BigInteger CENTINEROS_AU_MULTIPLIER = BigInteger.valueOf(10000);
     
@@ -42,6 +44,16 @@ public class ParsingUtils {
         return BigInteger.valueOf(centineros).multiply(ParsingUtils.CENTINEROS_AU_MULTIPLIER);
     }
     
+    /**
+     * Convert atomic units to centineros.
+     * 
+     * @param atomicUnits is an amount in atomic units
+     * @return the amount in centineros
+     */
+    public static long atomicUnitsToCentineros(long atomicUnits) {
+      return atomicUnits / CENTINEROS_AU_MULTIPLIER.longValue();
+    }
+    
     public static Coin parseToCoin(String input, CoinFormatter coinFormatter) {
         return parseToCoin(input, coinFormatter.getMonetaryFormat());
     }
diff --git a/daemon/src/main/java/bisq/daemon/grpc/GrpcOffersService.java b/daemon/src/main/java/bisq/daemon/grpc/GrpcOffersService.java
index 54658e4c9a..f520a806b1 100644
--- a/daemon/src/main/java/bisq/daemon/grpc/GrpcOffersService.java
+++ b/daemon/src/main/java/bisq/daemon/grpc/GrpcOffersService.java
@@ -21,7 +21,7 @@ import bisq.core.api.CoreApi;
 import bisq.core.api.model.OfferInfo;
 import bisq.core.offer.Offer;
 import bisq.core.offer.OpenOffer;
-
+import bisq.core.util.ParsingUtils;
 import bisq.proto.grpc.CancelOfferReply;
 import bisq.proto.grpc.CancelOfferRequest;
 import bisq.proto.grpc.CreateOfferReply;
@@ -149,8 +149,8 @@ class GrpcOffersService extends OffersImplBase {
                     req.getPrice(),
                     req.getUseMarketBasedPrice(),
                     req.getMarketPriceMargin(),
-                    req.getAmount(),
-                    req.getMinAmount(),
+                    ParsingUtils.atomicUnitsToCentineros(req.getAmount()), // scale atomic unit to centineros for consistency TODO switch base to atomic units?
+                    ParsingUtils.atomicUnitsToCentineros(req.getMinAmount()),
                     req.getBuyerSecurityDeposit(),
                     req.getTriggerPrice(),
                     req.getPaymentAccountId(),