feat(upgrade): change rewards multiplier for mainnet

client/app/upgrades/singularity/virgil/constants.go

@@ -1,6 +1,7 @@
 package virgil
 
 import (
+	"cosmossdk.io/math"
 	storetypes "cosmossdk.io/store/types"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
@@ -32,6 +33,12 @@ var Fork = upgrades.Fork{
 	BeginForkLogic: func(_ sdk.Context, _ *keepers.Keepers) {},
 }
 
+type RewardsMultipliers struct {
+	Short  math.LegacyDec
+	Medium math.LegacyDec
+	Long   math.LegacyDec
+}
+
 func GetUpgradeHeight(chainID string) (int64, bool) {
 	switch chainID {
 	case upgrades.AeneidChainID:
@@ -42,3 +49,22 @@ func GetUpgradeHeight(chainID string) (int64, bool) {
 		return 0, false
 	}
 }
+
+var DefaultRewardsMultiplier = RewardsMultipliers{
+	Short:  math.LegacyNewDecWithPrec(1051, 3), // 1.051
+	Medium: math.LegacyNewDecWithPrec(116, 2),  // 1.16
+	Long:   math.LegacyNewDecWithPrec(134, 2),  // 1.34
+}
+
+func GetRewardsMultipliers(chainID string) RewardsMultipliers {
+	switch chainID {
+	case upgrades.StoryChainID:
+		return RewardsMultipliers{
+			Short:  math.LegacyNewDecWithPrec(11, 1), // 1.1
+			Medium: math.LegacyNewDecWithPrec(15, 1), // 1.5
+			Long:   math.LegacyNewDecWithPrec(20, 1), // 2
+		}
+	default:
+		return DefaultRewardsMultiplier
+	}
+}

client/app/upgrades/singularity/virgil/upgrades.go

@@ -45,17 +45,24 @@ func CreateUpgradeHandler(
 		}
 
 		log.Info(ctx, "Update staking periods...")
+		newRewardsMultiplier := GetRewardsMultipliers(chainID)
 		var oldShortPeriodDuration time.Duration
 		for i := range stakingParams.Periods {
 			if stakingParams.Periods[i].PeriodType == 1 {
 				oldShortPeriodDuration = stakingParams.Periods[i].Duration
 				log.Info(ctx, "Existing short period duration", "Time", oldShortPeriodDuration.String())
 				log.Info(ctx, "Change short period duration to 90 days (7776000 seconds)")
 				stakingParams.Periods[i].Duration = NewShortPeriodDuration
+				log.Info(ctx, "Change short period rewards multiplier", "new_multiplier", newRewardsMultiplier.Short.String())
+				stakingParams.Periods[i].RewardsMultiplier = newRewardsMultiplier.Short
 			} else if stakingParams.Periods[i].PeriodType == 2 {
 				log.Info(ctx, "Existing medium period duration", "Time", stakingParams.Periods[i].Duration.String())
+				log.Info(ctx, "Change medium period rewards multiplier", "new_multiplier", newRewardsMultiplier.Medium.String())
+				stakingParams.Periods[i].RewardsMultiplier = newRewardsMultiplier.Medium
 			} else if stakingParams.Periods[i].PeriodType == 3 {
 				log.Info(ctx, "Existing long period duration", "Time", stakingParams.Periods[i].Duration.String())
+				log.Info(ctx, "Change long period rewards multiplier", "new_multiplier", newRewardsMultiplier.Long.String())
+				stakingParams.Periods[i].RewardsMultiplier = newRewardsMultiplier.Long
 			}
 		}
 
@@ -71,15 +78,24 @@ func CreateUpgradeHandler(
 		}
 
 		for _, p := range stakingParams.Periods {
-			if p.PeriodType == 1 {
+			if p.PeriodType == 1 { //nolint:nestif // no issue
 				log.Info(ctx, "New short period duration", "Time", p.Duration.String())
 				if p.Duration != NewShortPeriodDuration {
 					return vm, errors.New("new short period duration is not correct")
 				}
+				if !p.RewardsMultiplier.Equal(newRewardsMultiplier.Short) {
+					return vm, errors.New("new short period rewards multiplier is not correct")
+				}
 			} else if p.PeriodType == 2 {
 				log.Info(ctx, "New medium period duration", "Time", p.Duration.String())
+				if !p.RewardsMultiplier.Equal(newRewardsMultiplier.Medium) {
+					return vm, errors.New("new medium period rewards multiplier is not correct")
+				}
 			} else if p.PeriodType == 3 {
 				log.Info(ctx, "New long period duration", "Time", p.Duration.String())
+				if !p.RewardsMultiplier.Equal(newRewardsMultiplier.Long) {
+					return vm, errors.New("new long period rewards multiplier is not correct")
+				}
 			}
 		}