From 455ae5b26c73bf8f664607bfd707293bb500a478 Mon Sep 17 00:00:00 2001
From: tyleroooo <tyler@dydx.exchange>
Date: Thu, 17 Oct 2024 16:35:35 -0400
Subject: [PATCH] fix: add a little tolerance for floating point precision
 (#717)

---
 build.gradle.kts                                           | 2 +-
 .../functional/vault/VaultDepositWithdrawForm.kt           | 7 ++++---
 v4_abacus.podspec                                          | 2 +-
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/build.gradle.kts b/build.gradle.kts
index 7632a8d1a..01031b203 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -52,7 +52,7 @@ allprojects {
 }
 
 group = "exchange.dydx.abacus"
-version = "1.13.0"
+version = "1.13.1"
 
 repositories {
     google()
diff --git a/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt b/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt
index 0d0e1936c..ee8310442 100644
--- a/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt
+++ b/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt
@@ -238,6 +238,7 @@ object VaultDepositWithdrawFormValidator {
     private const val SLIPPAGE_PERCENT_WARN = 0.01
     private const val SLIPPAGE_PERCENT_ACK = 0.04
     private const val SLIPPAGE_TOLERANCE = 0.01
+    private const val EPSILON_FOR_ERRORS = 0.0001
 
     private const val MIN_DEPOSIT_FE_THRESHOLD = 20.0
 
@@ -370,7 +371,7 @@ object VaultDepositWithdrawFormValidator {
 
         when (formData.action) {
             VaultFormAction.DEPOSIT -> {
-                if (postOpFreeCollateral != null && postOpFreeCollateral < 0) {
+                if (postOpFreeCollateral != null && postOpFreeCollateral < -EPSILON_FOR_ERRORS) {
                     errors.add(vaultFormValidationErrors.depositTooHigh())
                 }
                 if (amount > 0 && amount < MIN_DEPOSIT_FE_THRESHOLD) {
@@ -378,7 +379,7 @@ object VaultDepositWithdrawFormValidator {
                 }
             }
             VaultFormAction.WITHDRAW -> {
-                if (postOpVaultBalance != null && postOpVaultBalance < 0) {
+                if (postOpVaultBalance < -EPSILON_FOR_ERRORS) {
                     errors.add(vaultFormValidationErrors.withdrawTooHigh())
                 }
                 if (amount > 0 && amount < MIN_DEPOSIT_FE_THRESHOLD) {
@@ -391,7 +392,7 @@ object VaultDepositWithdrawFormValidator {
                         errors.add(vaultFormValidationErrors.withdrawTooLow())
                     }
                 }
-                if (postOpVaultBalance != null && postOpVaultBalance >= 0 && amount > 0 &&
+                if (postOpVaultBalance >= -EPSILON_FOR_ERRORS && amount > 0 &&
                     vaultAccount?.withdrawableUsdc != null && amount > vaultAccount.withdrawableUsdc
                 ) {
                     errors.add(vaultFormValidationErrors.withdrawingLockedBalance())
diff --git a/v4_abacus.podspec b/v4_abacus.podspec
index c52c92710..7ebef41d5 100644
--- a/v4_abacus.podspec
+++ b/v4_abacus.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name                     = 'v4_abacus'
-    spec.version                  = '1.13.0'
+    spec.version                  = '1.13.1'
     spec.homepage                 = 'https://github.com/dydxprotocol/v4-abacus'
     spec.source                   = { :http=> ''}
     spec.authors                  = ''