Update rewards (#812)

Author: ruixhuang

build.gradle.kts

@@ -40,6 +40,7 @@ allprojects {
                         "ktlint_standard_backing-property-naming" to "disabled",
                         "ktlint_standard_filename" to "disabled",
                         "ktlint_standard_function-naming" to "disabled",
+                        "ktlint_standard_property-naming" to "disabled",
                     )
                 )
 
@@ -52,7 +53,7 @@ allprojects {
 }
 
 group = "exchange.dydx.abacus"
-version = "1.14.2"
+version = "1.14.3"
 
 repositories {
     google()

src/commonMain/kotlin/exchange.dydx.abacus/calculator/TradeInput/TradeInputSummaryCalculator.kt

@@ -342,6 +342,14 @@ internal class TradeInputSummaryCalculator {
         return if (trade.side == OrderSide.Sell) Numeric.double.POSITIVE else Numeric.double.NEGATIVE
     }
 
+    // megavault and ops
+    @Suppress("LocalVariableName", "PropertyName", "VariableNaming")
+    private val RATE_LOST_TO_REV_SHARES = 0.4
+
+    // affiliates
+    @Suppress("LocalVariableName", "PropertyName", "VariableNaming")
+    private val MAX_POSSIBLE_TAKER_REV_SHARE = 0.5
+
     private fun calculateTakerReward(
         usdcSize: Double?,
         fee: Double?,
@@ -363,9 +371,14 @@ internal class TradeInputSummaryCalculator {
             tokenPrice > 0.0
         ) {
             val feeMultiplier = feeMultiplierPpm / QUANTUM_MULTIPLIER
-            return feeMultiplier * (fee - maxMakerRebate * notional) / (
+            val reward = feeMultiplier * (fee - maxMakerRebate * notional - fee * MAX_POSSIBLE_TAKER_REV_SHARE) * RATE_LOST_TO_REV_SHARES / (
                 tokenPrice * 10.0.pow(tokenPriceExponent)
                 )
+            return if (reward > 0.0) {
+                reward
+            } else {
+                0.0
+            }
         }
         return null
     }
@@ -386,7 +399,7 @@ internal class TradeInputSummaryCalculator {
             tokenPrice > 0.0
         ) {
             val feeMultiplier = feeMultiplierPpm / QUANTUM_MULTIPLIER
-            return fee * feeMultiplier / (tokenPrice * 10.0.pow(tokenPriceExponent))
+            return fee * feeMultiplier * MAX_POSSIBLE_TAKER_REV_SHARE / (tokenPrice * 10.0.pow(tokenPriceExponent))
         }
         return null
     }

v4_abacus.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name                     = 'v4_abacus'
-    spec.version                  = '1.14.2'
+    spec.version                  = '1.14.3'
     spec.homepage                 = 'https://github.com/dydxprotocol/v4-abacus'
     spec.source                   = { :http=> ''}
     spec.authors                  = ''