From a723c0d86b677f8d4b1f1d0791b07e2111354b4a Mon Sep 17 00:00:00 2001
From: woodser <woodser@protonmail.com>
Date: Tue, 14 May 2024 19:21:00 -0400
Subject: [PATCH] taker security deposit based on trade amount in range

---
 .../main/offer/offerbook/OfferBookView.java     |  3 ++-
 .../offer/takeoffer/TakeOfferDataModel.java     | 17 +++++++++++------
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/desktop/src/main/java/haveno/desktop/main/offer/offerbook/OfferBookView.java b/desktop/src/main/java/haveno/desktop/main/offer/offerbook/OfferBookView.java
index abbbebf2..ac10fd7d 100644
--- a/desktop/src/main/java/haveno/desktop/main/offer/offerbook/OfferBookView.java
+++ b/desktop/src/main/java/haveno/desktop/main/offer/offerbook/OfferBookView.java
@@ -1021,7 +1021,8 @@ abstract public class OfferBookView<R extends GridPane, M extends OfferBookViewM
                                         setGraphic(null);
                                     } else {
                                         setText("");
-                                        setGraphic(new ColoredDecimalPlacesWithZerosText(model.formatDepositString(
+                                        String rangePrefix = item.getOffer().isRange() ? "<= " : "";
+                                        setGraphic(new ColoredDecimalPlacesWithZerosText(rangePrefix + model.formatDepositString(
                                                 deposit, item.getOffer().getAmount().longValueExact()),
                                                 GUIUtil.AMOUNT_DECIMALS_WITH_ZEROS));
                                     }
diff --git a/desktop/src/main/java/haveno/desktop/main/offer/takeoffer/TakeOfferDataModel.java b/desktop/src/main/java/haveno/desktop/main/offer/takeoffer/TakeOfferDataModel.java
index 640e467f..425f6e68 100644
--- a/desktop/src/main/java/haveno/desktop/main/offer/takeoffer/TakeOfferDataModel.java
+++ b/desktop/src/main/java/haveno/desktop/main/offer/takeoffer/TakeOfferDataModel.java
@@ -182,9 +182,7 @@ class TakeOfferDataModel extends OfferDataModel {
 
         this.amount.set(offer.getAmount().min(BigInteger.valueOf(getMaxTradeLimit())));
 
-        securityDeposit = offer.getDirection() == OfferDirection.SELL ?
-                getBuyerSecurityDeposit() :
-                getSellerSecurityDeposit();
+        updateSecurityDeposit();
 
         calculateVolume();
         calculateTotalToPay();
@@ -374,11 +372,12 @@ class TakeOfferDataModel extends OfferDataModel {
 
     void applyAmount(BigInteger amount) {
         this.amount.set(amount.min(BigInteger.valueOf(getMaxTradeLimit())));
-
         calculateTotalToPay();
     }
 
     void calculateTotalToPay() {
+        updateSecurityDeposit();
+
         // Taker pays 2 times the tx fee because the mining fee might be different when maker created the offer
         // and reserved his funds, so that would not work well with dynamic fees.
         // The mining fee for the takeOfferFee tx is deducted from the createOfferFee and not visible to the trader
@@ -468,11 +467,17 @@ class TakeOfferDataModel extends OfferDataModel {
         return securityDeposit;
     }
 
-    public BigInteger getBuyerSecurityDeposit() {
+    private void updateSecurityDeposit() {
+        securityDeposit = offer.getDirection() == OfferDirection.SELL ?
+                getBuyerSecurityDeposit() :
+                getSellerSecurityDeposit();
+    }
+
+    private BigInteger getBuyerSecurityDeposit() {
         return offer.getOfferPayload().getBuyerSecurityDepositForTradeAmount(amount.get());
     }
 
-    public BigInteger getSellerSecurityDeposit() {
+    private BigInteger getSellerSecurityDeposit() {
         return offer.getOfferPayload().getSellerSecurityDepositForTradeAmount(amount.get());
     }