Add getRole(tradeId) to core api

core/src/main/java/bisq/core/api/CoreApi.java

@@ -193,6 +193,10 @@ public Trade getTrade(String tradeId) {
         return coreTradesService.getTrade(tradeId);
     }
 
+    public String getTradeRole(String tradeId) {
+        return coreTradesService.getTradeRole(tradeId);
+    }
+
     ///////////////////////////////////////////////////////////////////////////////////////////
     // Wallets
     ///////////////////////////////////////////////////////////////////////////////////////////

core/src/main/java/bisq/core/api/CoreTradesService.java

@@ -21,6 +21,7 @@
 import bisq.core.offer.takeoffer.TakeOfferModel;
 import bisq.core.trade.Trade;
 import bisq.core.trade.TradeManager;
+import bisq.core.trade.TradeUtil;
 import bisq.core.trade.protocol.BuyerProtocol;
 import bisq.core.trade.protocol.SellerProtocol;
 import bisq.core.user.User;
@@ -38,14 +39,17 @@ class CoreTradesService {
 
     private final TakeOfferModel takeOfferModel;
     private final TradeManager tradeManager;
+    private final TradeUtil tradeUtil;
     private final User user;
 
     @Inject
     public CoreTradesService(TakeOfferModel takeOfferModel,
                              TradeManager tradeManager,
+                             TradeUtil tradeUtil,
                              User user) {
         this.takeOfferModel = takeOfferModel;
         this.tradeManager = tradeManager;
+        this.tradeUtil = tradeUtil;
         this.user = user;
     }
 
@@ -57,6 +61,7 @@ void takeOffer(Offer offer,
             throw new IllegalArgumentException(format("payment account with id '%s' not found", paymentAccountId));
 
         var useSavingsWallet = true;
+        //noinspection ConstantConditions
         takeOfferModel.initModel(offer, paymentAccount, useSavingsWallet);
         log.info("Initiating take {} offer, {}",
                 offer.isBuyOffer() ? "buy" : "sell",
@@ -111,6 +116,10 @@ void confirmPaymentReceived(String tradeId) {
         }
     }
 
+    String getTradeRole(String tradeId) {
+        return tradeUtil.getRole(getTrade(tradeId));
+    }
+
     Trade getTrade(String tradeId) {
         return tradeManager.getTradeById(tradeId).orElseThrow(() ->
                 new IllegalArgumentException(format("trade with id '%s' not found", tradeId)));

core/src/main/java/bisq/core/api/model/TradeInfo.java

@@ -40,6 +40,7 @@ public class TradeInfo implements Payload {
     private final String tradeId;
     private final String shortId;
     private final long date;
+    private final String role;
     private final boolean isCurrencyForTakerFeeBtc;
     private final long txFeeAsLong;
     private final long takerFeeAsLong;
@@ -65,6 +66,7 @@ public TradeInfo(TradeInfoBuilder builder) {
         this.tradeId = builder.tradeId;
         this.shortId = builder.shortId;
         this.date = builder.date;
+        this.role = builder.role;
         this.isCurrencyForTakerFeeBtc = builder.isCurrencyForTakerFeeBtc;
         this.txFeeAsLong = builder.txFeeAsLong;
         this.takerFeeAsLong = builder.takerFeeAsLong;
@@ -87,11 +89,16 @@ public TradeInfo(TradeInfoBuilder builder) {
     }
 
     public static TradeInfo toTradeInfo(Trade trade) {
+        return toTradeInfo(trade, null);
+    }
+
+    public static TradeInfo toTradeInfo(Trade trade, String role) {
         return new TradeInfo.TradeInfoBuilder()
                 .withOffer(toOfferInfo(trade.getOffer()))
                 .withTradeId(trade.getId())
                 .withShortId(trade.getShortId())
                 .withDate(trade.getDate().getTime())
+                .withRole(role == null ? "" : role)
                 .withIsCurrencyForTakerFeeBtc(trade.isCurrencyForTakerFeeBtc())
                 .withTxFeeAsLong(trade.getTxFeeAsLong())
                 .withTakerFeeAsLong(trade.getTakerFeeAsLong())
@@ -127,6 +134,7 @@ public bisq.proto.grpc.TradeInfo toProtoMessage() {
                 .setTradeId(tradeId)
                 .setShortId(shortId)
                 .setDate(date)
+                .setRole(role)
                 .setIsCurrencyForTakerFeeBtc(isCurrencyForTakerFeeBtc)
                 .setTxFeeAsLong(txFeeAsLong)
                 .setTakerFeeAsLong(takerFeeAsLong)
@@ -165,6 +173,7 @@ public static class TradeInfoBuilder {
         private String tradeId;
         private String shortId;
         private long date;
+        private String role;
         private boolean isCurrencyForTakerFeeBtc;
         private long txFeeAsLong;
         private long takerFeeAsLong;
@@ -205,6 +214,11 @@ public TradeInfoBuilder withDate(long date) {
             return this;
         }
 
+        public TradeInfoBuilder withRole(String role) {
+            this.role = role;
+            return this;
+        }
+
         public TradeInfoBuilder withIsCurrencyForTakerFeeBtc(boolean isCurrencyForTakerFeeBtc) {
             this.isCurrencyForTakerFeeBtc = isCurrencyForTakerFeeBtc;
             return this;
@@ -311,6 +325,7 @@ public String toString() {
                 "  tradeId='" + tradeId + '\'' + "\n" +
                 ", shortId='" + shortId + '\'' + "\n" +
                 ", date='" + date + '\'' + "\n" +
+                ", role='" + role + '\'' + "\n" +
                 ", isCurrencyForTakerFeeBtc='" + isCurrencyForTakerFeeBtc + '\'' + "\n" +
                 ", txFeeAsLong='" + txFeeAsLong + '\'' + "\n" +
                 ", takerFeeAsLong='" + takerFeeAsLong + '\'' + "\n" +

core/src/main/java/bisq/core/trade/TradeUtil.java

@@ -39,6 +39,7 @@
 import static bisq.core.locale.CurrencyUtil.isFiatCurrency;
 import static bisq.core.util.FormattingUtils.formatDurationAsWords;
 import static com.google.common.base.Preconditions.checkNotNull;
+import static java.lang.String.format;
 
 /**
  * This class contains trade utility methods.
@@ -173,6 +174,27 @@ public String getPaymentMethodNameWithCountryCode(Trade trade) {
         return paymentMethodDescription;
     }
 
+    /**
+     * Returns a string describing a trader's role for a given trade.
+     * @param trade Trade
+     * @return String describing a trader's role for a given trade
+     */
+    public String getRole(Trade trade) {
+        Contract contract = trade.getContract();
+        if (contract == null)
+            throw new IllegalStateException(format("could not get role because no contract was found for trade '%s'",
+                    trade.getShortId()));
+
+        Offer offer = trade.getOffer();
+        if (offer == null)
+            throw new IllegalStateException(format("could not get role because no offer was found for trade '%s'",
+                    trade.getShortId()));
+
+        return getRole(contract.isBuyerMakerAndSellerTaker(),
+                offer.isMyOffer(keyRing),
+                offer.getCurrencyCode());
+    }
+
     /**
      * Returns a string describing a trader's role.
      *
@@ -202,6 +224,5 @@ public String getRole(boolean isBuyerMakerAndSellerTaker, boolean isMaker, Strin
                         ? Res.get("formatter.asMaker", currencyCode, Res.get("shared.buyer"))
                         : Res.get("formatter.asTaker", currencyCode, Res.get("shared.seller"));
         }
-
     }
 }

daemon/src/main/java/bisq/daemon/grpc/GrpcTradesService.java

@@ -56,8 +56,9 @@ public void getTrade(GetTradeRequest req,
                          StreamObserver<GetTradeReply> responseObserver) {
         try {
             Trade trade = coreApi.getTrade(req.getTradeId());
+            String role = coreApi.getTradeRole(req.getTradeId());
             var reply = GetTradeReply.newBuilder()
-                    .setTrade(toTradeInfo(trade).toProtoMessage())
+                    .setTrade(toTradeInfo(trade, role).toProtoMessage())
                     .build();
             responseObserver.onNext(reply);
             responseObserver.onCompleted();

proto/src/main/proto/grpc.proto

@@ -218,25 +218,26 @@ message TradeInfo {
     string tradeId = 2;
     string shortId = 3;
     uint64 date = 4;
-    bool isCurrencyForTakerFeeBtc = 5;
-    uint64 txFeeAsLong = 6;
-    uint64 takerFeeAsLong = 7;
-    string takerFeeTxId = 8;
-    string depositTxId = 9;
-    string payoutTxId = 10;
-    uint64 tradeAmountAsLong = 11;
-    uint64 tradePrice = 12;
-    string tradingPeerNodeAddress = 13;
-    string state = 14;
-    string phase = 15;
-    string tradePeriodState = 16;
-    bool isDepositPublished = 17;
-    bool isDepositConfirmed = 18;
-    bool isFiatSent = 19;
-    bool isFiatReceived = 20;
-    bool isPayoutPublished = 21;
-    bool isWithdrawn = 22;
-    string contractAsJson = 23;
+    string role = 5;
+    bool isCurrencyForTakerFeeBtc = 6;
+    uint64 txFeeAsLong = 7;
+    uint64 takerFeeAsLong = 8;
+    string takerFeeTxId = 9;
+    string depositTxId = 10;
+    string payoutTxId = 11;
+    uint64 tradeAmountAsLong = 12;
+    uint64 tradePrice = 13;
+    string tradingPeerNodeAddress = 14;
+    string state = 15;
+    string phase = 16;
+    string tradePeriodState = 17;
+    bool isDepositPublished = 18;
+    bool isDepositConfirmed = 19;
+    bool isFiatSent = 20;
+    bool isFiatReceived = 21;
+    bool isPayoutPublished = 22;
+    bool isWithdrawn = 23;
+    string contractAsJson = 24;
 }
 
 ///////////////////////////////////////////////////////////////////////////////////////////