Separate multipliers per claimed denom (#971)

* move multipliers to their own file

* add multipliers per denom to MsgClaimHardReward

* claim with multipliers per denom for hard claims

* remove unused error

* add multipliers per denom to params
connect to to hard claiming

* temporary fix migration

* update usdx claiming for new multiplier params

* claim with multipliers per denom for delegator

* claim with multipliers per denom for swap rewards

* tidy up multiplier name validation

* rename new multipliers field in params

* remove old multpliers from params

* clear up various TODOs

* add tags to new structs

* remove dead code

migrate/v0_15/incentive.go

@@ -15,6 +15,20 @@ func Incentive(incentiveGS v0_14incentive.GenesisState) v0_15incentive.GenesisSt
 		newMultiplier := v0_15incentive.NewMultiplier(v0_15incentive.MultiplierName(m.Name), m.MonthsLockup, m.Factor)
 		claimMultipliers = append(claimMultipliers, newMultiplier)
 	}
+	newMultipliers := v0_15incentive.MultipliersPerDenom{
+		{
+			Denom:       "hard",
+			Multipliers: claimMultipliers,
+		},
+		{
+			Denom:       "ukava",
+			Multipliers: claimMultipliers,
+		},
+		{
+			Denom:       "swp",
+			Multipliers: claimMultipliers, // TODO set the correct multipliers
+		},
+	}
 
 	usdxMintingRewardPeriods := v0_15incentive.RewardPeriods{}
 	for _, rp := range incentiveGS.Params.USDXMintingRewardPeriods {
@@ -41,7 +55,7 @@ func Incentive(incentiveGS v0_14incentive.GenesisState) v0_15incentive.GenesisSt
 		migrateMultiRewardPeriods(incentiveGS.Params.HardBorrowRewardPeriods),
 		hardDelegatorRewardPeriods,
 		swapRewardPeriods,
-		claimMultipliers,
+		newMultipliers,
 		incentiveGS.Params.ClaimEnd,
 	)
 

x/incentive/alias.go

@@ -52,9 +52,7 @@ var (
 	NewQuerier                           = keeper.NewQuerier
 	DefaultGenesisState                  = types.DefaultGenesisState
 	DefaultParams                        = types.DefaultParams
-	FilterCoins                          = types.FilterCoins
 	GetTotalVestingPeriodLength          = types.GetTotalVestingPeriodLength
-	MultiplyCoins                        = types.MultiplyCoins
 	NewAccumulationTime                  = types.NewAccumulationTime
 	NewAccumulator                       = types.NewAccumulator
 	NewDelegatorClaim                    = types.NewDelegatorClaim
@@ -79,9 +77,12 @@ var (
 	NewQueryRewardsParams                = types.NewQueryRewardsParams
 	NewRewardIndex                       = types.NewRewardIndex
 	NewRewardPeriod                      = types.NewRewardPeriod
+	NewSelection                         = types.NewSelection
+	NewSelectionsFromMap                 = types.NewSelectionsFromMap
 	NewSwapClaim                         = types.NewSwapClaim
 	NewUSDXMintingClaim                  = types.NewUSDXMintingClaim
 	ParamKeyTable                        = types.ParamKeyTable
+	ParseMultiplierName                  = types.ParseMultiplierName
 	RegisterCodec                        = types.RegisterCodec
 
 	// variable aliases
@@ -105,7 +106,6 @@ var (
 	ErrInsufficientModAccountBalance              = types.ErrInsufficientModAccountBalance
 	ErrInvalidAccountType                         = types.ErrInvalidAccountType
 	ErrInvalidClaimDenoms                         = types.ErrInvalidClaimDenoms
-	ErrInvalidClaimOwner                          = types.ErrInvalidClaimOwner
 	ErrInvalidClaimType                           = types.ErrInvalidClaimType
 	ErrInvalidMultiplier                          = types.ErrInvalidMultiplier
 	ErrNoClaimsFound                              = types.ErrNoClaimsFound
@@ -171,6 +171,7 @@ type (
 	Multiplier                        = types.Multiplier
 	MultiplierName                    = types.MultiplierName
 	Multipliers                       = types.Multipliers
+	MultipliersPerDenom               = types.MultipliersPerDenom
 	ParamSubspace                     = types.ParamSubspace
 	Params                            = types.Params
 	QueryGetRewardFactorsResponse     = types.QueryGetRewardFactorsResponse
@@ -179,6 +180,8 @@ type (
 	RewardIndexes                     = types.RewardIndexes
 	RewardPeriod                      = types.RewardPeriod
 	RewardPeriods                     = types.RewardPeriods
+	Selection                         = types.Selection
+	Selections                        = types.Selections
 	StakingKeeper                     = types.StakingKeeper
 	SupplyKeeper                      = types.SupplyKeeper
 	SwapClaim                         = types.SwapClaim

x/incentive/client/cli/tx.go

@@ -18,6 +18,9 @@ import (
 	"github.com/kava-labs/kava/x/incentive/types"
 )
 
+const multiplierFlag = "multiplier"
+const multiplierFlagShort = "m"
+
 // GetTxCmd returns the transaction cli commands for the incentive module
 func GetTxCmd(cdc *codec.Codec) *cobra.Command {
 	incentiveTxCmd := &cobra.Command{
@@ -100,13 +103,49 @@ A receiver address for the rewards is needed as validator vesting accounts canno
 }
 
 func getCmdClaimHard(cdc *codec.Codec) *cobra.Command {
-	var denomsToClaim []string
+	var denomsToClaim map[string]string
 
 	cmd := &cobra.Command{
-		Use:     "claim-hard [multiplier]",
-		Short:   "claim sender's Hard module rewards using a given multiplier",
-		Long:    `Claim sender's outstanding Hard rewards for deposit/borrow using given multiplier`,
-		Example: fmt.Sprintf(`  $ %s tx %s claim-hard large`, version.ClientName, types.ModuleName),
+		Use:   "claim-hard",
+		Short: "claim sender's Hard module rewards using given multipliers",
+		Long:  `Claim sender's outstanding Hard rewards for deposit/borrow using given multipliers`,
+		Example: strings.Join([]string{
+			fmt.Sprintf(`  $ %s tx %s claim-hard --%s hard=large --%s ukava=small`, version.ClientName, types.ModuleName, multiplierFlag, multiplierFlag),
+			fmt.Sprintf(`  $ %s tx %s claim-hard --%s hard=large,ukava=small`, version.ClientName, types.ModuleName, multiplierFlag),
+		}, "\n"),
+		Args: cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			inBuf := bufio.NewReader(cmd.InOrStdin())
+			cliCtx := context.NewCLIContext().WithCodec(cdc)
+			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
+
+			sender := cliCtx.GetFromAddress()
+			selections := types.NewSelectionsFromMap(denomsToClaim)
+
+			msg := types.NewMsgClaimHardReward(sender, selections...)
+			if err := msg.ValidateBasic(); err != nil {
+				return err
+			}
+			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
+		},
+	}
+	cmd.Flags().StringToStringVarP(&denomsToClaim, multiplierFlag, multiplierFlagShort, nil, "specify the denoms to claim, each with a multiplier lockup")
+	cmd.MarkFlagRequired(multiplierFlag)
+	return cmd
+}
+
+func getCmdClaimHardVVesting(cdc *codec.Codec) *cobra.Command {
+	var denomsToClaim map[string]string
+
+	cmd := &cobra.Command{
+		Use:   "claim-hard-vesting [receiver]",
+		Short: "claim Hard module rewards on behalf of a validator vesting account using given multipliers",
+		Long: `Claim sender's outstanding hard supply/borrow rewards on behalf of a validator vesting account using given multipliers
+A receiver address for the rewards is needed as validator vesting accounts cannot receive locked tokens.`,
+		Example: strings.Join([]string{
+			fmt.Sprintf("  $ %s tx %s claim-hard-vesting kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw --%s hard=large --%s ukava=small", version.ClientName, types.ModuleName, multiplierFlag, multiplierFlag),
+			fmt.Sprintf("  $ %s tx %s claim-hard-vesting kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw --%s hard=large,ukava=small", version.ClientName, types.ModuleName, multiplierFlag),
+		}, "\n"),
 		Args: cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			inBuf := bufio.NewReader(cmd.InOrStdin())
@@ -114,70 +153,68 @@ func getCmdClaimHard(cdc *codec.Codec) *cobra.Command {
 			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
 
 			sender := cliCtx.GetFromAddress()
-			multiplier := args[0]
-
-			msg := types.NewMsgClaimHardReward(sender, multiplier, denomsToClaim)
-			if err := msg.ValidateBasic(); err != nil {
-				return err
-			}
-			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
-		},
-	}
-	cmd.Flags().StringSliceVar(&denomsToClaim, "claim-only", nil, "claim only these denoms, otherwise claim all denoms")
-
-	return cmd
-}
-
-func getCmdClaimHardVVesting(cdc *codec.Codec) *cobra.Command {
-	var denomsToClaim []string
-
-	cmd := &cobra.Command{
-		Use:   "claim-hard-vesting [multiplier] [receiver]",
-		Short: "claim Hard module rewards on behalf of a validator vesting account using a given multiplier",
-		Long: `Claim sender's outstanding hard supply/borrow rewards on behalf of a validator vesting account using given multiplier
-A receiver address for the rewards is needed as validator vesting accounts cannot receive locked tokens.
-Optionally claim only certain denoms from the rewards. Specifying none will claim all of them.`,
-		Example: strings.Join([]string{
-			fmt.Sprintf("  $ %s tx %s claim-hard-vesting large kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw", version.ClientName, types.ModuleName),
-			fmt.Sprintf("  $ %s tx %s claim-hard-vesting small kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw --claim-only swp,hard", version.ClientName, types.ModuleName),
-		}, "\n"),
-		Args: cobra.ExactArgs(2),
-		RunE: func(cmd *cobra.Command, args []string) error {
-			inBuf := bufio.NewReader(cmd.InOrStdin())
-			cliCtx := context.NewCLIContext().WithCodec(cdc)
-			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
-
-			sender := cliCtx.GetFromAddress()
-			multiplier := args[0]
-			receiverStr := args[1]
-			receiver, err := sdk.AccAddressFromBech32(receiverStr)
+			receiver, err := sdk.AccAddressFromBech32(args[1])
 			if err != nil {
 				return err
 			}
+			selections := types.NewSelectionsFromMap(denomsToClaim)
 
-			msg := types.NewMsgClaimHardRewardVVesting(sender, receiver, multiplier, denomsToClaim)
+			msg := types.NewMsgClaimHardRewardVVesting(sender, receiver, selections...)
 			if err := msg.ValidateBasic(); err != nil {
 				return err
 			}
 			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
 		},
 	}
-	cmd.Flags().StringSliceVar(&denomsToClaim, "claim-only", nil, "claim only these denoms, otherwise claim all denoms")
+	cmd.Flags().StringToStringVarP(&denomsToClaim, multiplierFlag, multiplierFlagShort, nil, "specify the denoms to claim, each with a multiplier lockup")
+	cmd.MarkFlagRequired(multiplierFlag)
 
 	return cmd
 }
 
 func getCmdClaimDelegator(cdc *codec.Codec) *cobra.Command {
-	var denomsToClaim []string
+	var denomsToClaim map[string]string
 
 	cmd := &cobra.Command{
-		Use:   "claim-delegator [multiplier]",
-		Short: "claim sender's delegator rewards using a given multiplier",
-		Long: `Claim sender's outstanding delegator rewards using given multiplier.
-Optionally claim only certain denoms from the rewards. Specifying none will claim all of them.`,
+		Use:   "claim-delegator",
+		Short: "claim sender's non-sdk delegator rewards using given multipliers",
+		Long:  `Claim sender's outstanding delegator rewards using given multipliers`,
 		Example: strings.Join([]string{
-			fmt.Sprintf("  $ %s tx %s claim-delegator large", version.ClientName, types.ModuleName),
-			fmt.Sprintf("  $ %s tx %s claim-delegator large --claim-only swp,hard", version.ClientName, types.ModuleName),
+			fmt.Sprintf(`  $ %s tx %s claim-delegator --%s hard=large --%s swp=small`, version.ClientName, types.ModuleName, multiplierFlag, multiplierFlag),
+			fmt.Sprintf(`  $ %s tx %s claim-delegator --%s hard=large,swp=small`, version.ClientName, types.ModuleName, multiplierFlag),
+		}, "\n"),
+		Args: cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			inBuf := bufio.NewReader(cmd.InOrStdin())
+			cliCtx := context.NewCLIContext().WithCodec(cdc)
+			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
+
+			sender := cliCtx.GetFromAddress()
+			selections := types.NewSelectionsFromMap(denomsToClaim)
+
+			msg := types.NewMsgClaimDelegatorReward(sender, selections...)
+			if err := msg.ValidateBasic(); err != nil {
+				return err
+			}
+			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
+		},
+	}
+	cmd.Flags().StringToStringVarP(&denomsToClaim, multiplierFlag, multiplierFlagShort, nil, "specify the denoms to claim, each with a multiplier lockup")
+	cmd.MarkFlagRequired(multiplierFlag)
+	return cmd
+}
+
+func getCmdClaimDelegatorVVesting(cdc *codec.Codec) *cobra.Command {
+	var denomsToClaim map[string]string
+
+	cmd := &cobra.Command{
+		Use:   "claim-delegator-vesting [receiver]",
+		Short: "claim non-sdk delegator rewards on behalf of a validator vesting account using given multipliers",
+		Long: `Claim sender's outstanding delegator rewards on behalf of a validator vesting account using given multipliers
+A receiver address for the rewards is needed as validator vesting accounts cannot receive locked tokens.`,
+		Example: strings.Join([]string{
+			fmt.Sprintf("  $ %s tx %s claim-hard-vesting kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw --%s hard=large --%s swp=small", version.ClientName, types.ModuleName, multiplierFlag, multiplierFlag),
+			fmt.Sprintf("  $ %s tx %s claim-hard-vesting kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw --%s hard=large,swp=small", version.ClientName, types.ModuleName, multiplierFlag),
 		}, "\n"),
 		Args: cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
@@ -186,70 +223,68 @@ Optionally claim only certain denoms from the rewards. Specifying none will clai
 			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
 
 			sender := cliCtx.GetFromAddress()
-			multiplier := args[0]
-
-			msg := types.NewMsgClaimDelegatorReward(sender, multiplier, denomsToClaim)
-			if err := msg.ValidateBasic(); err != nil {
-				return err
-			}
-			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
-		},
-	}
-	cmd.Flags().StringSliceVar(&denomsToClaim, "claim-only", nil, "claim only these denoms, otherwise claim all denoms")
-
-	return cmd
-}
-
-func getCmdClaimDelegatorVVesting(cdc *codec.Codec) *cobra.Command {
-	var denomsToClaim []string
-
-	cmd := &cobra.Command{
-		Use:   "claim-delegator-vesting [multiplier] [receiver]",
-		Short: "claim delegator rewards on behalf of a validator vesting account using a given multiplier",
-		Long: `Claim sender's outstanding delegator rewards on behalf of a validator vesting account using given multiplier
-A receiver address for the rewards is needed as validator vesting accounts cannot receive locked tokens.
-Optionally claim only certain denoms from the rewards. Specifying none will claim all of them.`,
-		Example: strings.Join([]string{
-			fmt.Sprintf("  $ %s tx %s claim-delegator-vesting large kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw", version.ClientName, types.ModuleName),
-			fmt.Sprintf("  $ %s tx %s claim-delegator-vesting small kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw --claim-only swp,hard", version.ClientName, types.ModuleName),
-		}, "\n"),
-		Args: cobra.ExactArgs(2),
-		RunE: func(cmd *cobra.Command, args []string) error {
-			inBuf := bufio.NewReader(cmd.InOrStdin())
-			cliCtx := context.NewCLIContext().WithCodec(cdc)
-			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
-
-			sender := cliCtx.GetFromAddress()
-			multiplier := args[0]
-			receiverStr := args[1]
-			receiver, err := sdk.AccAddressFromBech32(receiverStr)
+			receiver, err := sdk.AccAddressFromBech32(args[1])
 			if err != nil {
 				return err
 			}
+			selections := types.NewSelectionsFromMap(denomsToClaim)
 
-			msg := types.NewMsgClaimDelegatorRewardVVesting(sender, receiver, multiplier, denomsToClaim)
+			msg := types.NewMsgClaimDelegatorRewardVVesting(sender, receiver, selections...)
 			if err := msg.ValidateBasic(); err != nil {
 				return err
 			}
 			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
 		},
 	}
-	cmd.Flags().StringSliceVar(&denomsToClaim, "claim-only", nil, "claim only these denoms, otherwise claim all denoms")
+	cmd.Flags().StringToStringVarP(&denomsToClaim, multiplierFlag, multiplierFlagShort, nil, "specify the denoms to claim, each with a multiplier lockup")
+	cmd.MarkFlagRequired(multiplierFlag)
 
 	return cmd
 }
 
 func getCmdClaimSwap(cdc *codec.Codec) *cobra.Command {
-	var denomsToClaim []string
+	var denomsToClaim map[string]string
 
 	cmd := &cobra.Command{
-		Use:   "claim-swap [multiplier]",
-		Short: "claim sender's swap rewards using a given multiplier",
-		Long: `Claim sender's outstanding swap rewards using given multiplier.
-Optionally claim only certain denoms from the rewards. Specifying none will claim all of them.`,
+		Use:   "claim-swap",
+		Short: "claim sender's swap rewards using given multipliers",
+		Long:  `Claim sender's outstanding swap rewards using given multipliers`,
 		Example: strings.Join([]string{
-			fmt.Sprintf("  $ %s tx %s claim-swap large", version.ClientName, types.ModuleName),
-			fmt.Sprintf("  $ %s tx %s claim-swap large --claim-only swp,hard", version.ClientName, types.ModuleName),
+			fmt.Sprintf(`  $ %s tx %s claim-hard --%s swp=large --%s ukava=small`, version.ClientName, types.ModuleName, multiplierFlag, multiplierFlag),
+			fmt.Sprintf(`  $ %s tx %s claim-hard --%s swp=large,ukava=small`, version.ClientName, types.ModuleName, multiplierFlag),
+		}, "\n"),
+		Args: cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			inBuf := bufio.NewReader(cmd.InOrStdin())
+			cliCtx := context.NewCLIContext().WithCodec(cdc)
+			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
+
+			sender := cliCtx.GetFromAddress()
+			selections := types.NewSelectionsFromMap(denomsToClaim)
+
+			msg := types.NewMsgClaimSwapReward(sender, selections...)
+			if err := msg.ValidateBasic(); err != nil {
+				return err
+			}
+			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
+		},
+	}
+	cmd.Flags().StringToStringVarP(&denomsToClaim, multiplierFlag, multiplierFlagShort, nil, "specify the denoms to claim, each with a multiplier lockup")
+	cmd.MarkFlagRequired(multiplierFlag)
+	return cmd
+}
+
+func getCmdClaimSwapVVesting(cdc *codec.Codec) *cobra.Command {
+	var denomsToClaim map[string]string
+
+	cmd := &cobra.Command{
+		Use:   "claim-swap-vesting [receiver]",
+		Short: "claim swap rewards on behalf of a validator vesting account using given multipliers",
+		Long: `Claim sender's outstanding swap rewards on behalf of a validator vesting account using given multipliers
+A receiver address for the rewards is needed as validator vesting accounts cannot receive locked tokens.`,
+		Example: strings.Join([]string{
+			fmt.Sprintf("  $ %s tx %s claim-hard-vesting kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw --%s ukava=large --%s swp=small", version.ClientName, types.ModuleName, multiplierFlag, multiplierFlag),
+			fmt.Sprintf("  $ %s tx %s claim-hard-vesting kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw --%s ukava=large,swp=small", version.ClientName, types.ModuleName, multiplierFlag),
 		}, "\n"),
 		Args: cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
@@ -258,55 +293,21 @@ Optionally claim only certain denoms from the rewards. Specifying none will clai
 			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
 
 			sender := cliCtx.GetFromAddress()
-			multiplier := args[0]
-
-			msg := types.NewMsgClaimSwapReward(sender, multiplier, denomsToClaim)
-			if err := msg.ValidateBasic(); err != nil {
-				return err
-			}
-			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
-		},
-	}
-	cmd.Flags().StringSliceVar(&denomsToClaim, "claim-only", nil, "claim only these denoms, otherwise claim all denoms")
-
-	return cmd
-}
-
-func getCmdClaimSwapVVesting(cdc *codec.Codec) *cobra.Command {
-	var denomsToClaim []string
-
-	cmd := &cobra.Command{
-		Use:   "claim-swap-vesting [multiplier] [receiver]",
-		Short: "claim swap rewards on behalf of a validator vesting account using a given multiplier",
-		Long: `Claim sender's outstanding swap rewards on behalf of a validator vesting account using given multiplier
-A receiver address for the rewards is needed as validator vesting accounts cannot receive locked tokens.
-Optionally claim only certain denoms from the rewards. Specifying none will claim all of them.`,
-		Example: strings.Join([]string{
-			fmt.Sprintf("  $ %s tx %s claim-swap-vesting large kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw", version.ClientName, types.ModuleName),
-			fmt.Sprintf("  $ %s tx %s claim-swap-vesting small kava15qdefkmwswysgg4qxgqpqr35k3m49pkx2jdfnw --claim-only swp,hard", version.ClientName, types.ModuleName),
-		}, "\n"),
-		Args: cobra.ExactArgs(2),
-		RunE: func(cmd *cobra.Command, args []string) error {
-			inBuf := bufio.NewReader(cmd.InOrStdin())
-			cliCtx := context.NewCLIContext().WithCodec(cdc)
-			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
-
-			sender := cliCtx.GetFromAddress()
-			multiplier := args[0]
-			receiverStr := args[1]
-			receiver, err := sdk.AccAddressFromBech32(receiverStr)
+			receiver, err := sdk.AccAddressFromBech32(args[1])
 			if err != nil {
 				return err
 			}
+			selections := types.NewSelectionsFromMap(denomsToClaim)
 
-			msg := types.NewMsgClaimSwapRewardVVesting(sender, receiver, multiplier, denomsToClaim)
+			msg := types.NewMsgClaimSwapRewardVVesting(sender, receiver, selections...)
 			if err := msg.ValidateBasic(); err != nil {
 				return err
 			}
 			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
 		},
 	}
-	cmd.Flags().StringSliceVar(&denomsToClaim, "claim-only", nil, "claim only these denoms, otherwise claim all denoms")
+	cmd.Flags().StringToStringVarP(&denomsToClaim, multiplierFlag, multiplierFlagShort, nil, "specify the denoms to claim, each with a multiplier lockup")
+	cmd.MarkFlagRequired(multiplierFlag)
 
 	return cmd
 }

x/incentive/client/rest/rest.go

@@ -6,6 +6,8 @@ import (
 	"github.com/cosmos/cosmos-sdk/client/context"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/rest"
+
+	"github.com/kava-labs/kava/x/incentive/types"
 )
 
 // REST variable names
@@ -24,8 +26,7 @@ func RegisterRoutes(cliCtx context.CLIContext, r *mux.Router) {
 type PostClaimReq struct {
 	BaseReq       rest.BaseReq     `json:"base_req" yaml:"base_req"`
 	Sender        sdk.AccAddress   `json:"sender" yaml:"sender"`
-	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
-	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
+	DenomsToClaim types.Selections `json:"denoms_to_claim" yaml:"denoms_to_claim"`
 }
 
 // PostClaimReq defines the properties of claim transaction's request body.
@@ -33,6 +34,5 @@ type PostClaimVVestingReq struct {
 	BaseReq       rest.BaseReq     `json:"base_req" yaml:"base_req"`
 	Sender        sdk.AccAddress   `json:"sender" yaml:"sender"`
 	Receiver      sdk.AccAddress   `json:"receiver" yaml:"receiver"`
-	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
-	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
+	DenomsToClaim types.Selections `json:"denoms_to_claim" yaml:"denoms_to_claim"`
 }

x/incentive/client/rest/tx.go

@@ -29,20 +29,23 @@ func registerTxRoutes(cliCtx context.CLIContext, r *mux.Router) {
 	r.HandleFunc("/incentive/claim-swap-vesting", postClaimVVestingHandlerFn(cliCtx, swapVVGenerator)).Methods("POST")
 }
 
-func usdxMintingGenerator(req PostClaimReq) sdk.Msg {
-	return types.NewMsgClaimUSDXMintingReward(req.Sender, req.MultiplierName)
+func usdxMintingGenerator(req PostClaimReq) (sdk.Msg, error) {
+	if len(req.DenomsToClaim) != 1 {
+		return nil, fmt.Errorf("must only claim %s denom for usdx minting rewards, got '%s", types.USDXMintingRewardDenom, req.DenomsToClaim)
+	}
+	return types.NewMsgClaimUSDXMintingReward(req.Sender, req.DenomsToClaim[0].MultiplierName), nil
 }
-func hardGenerator(req PostClaimReq) sdk.Msg {
-	return types.NewMsgClaimHardReward(req.Sender, req.MultiplierName, req.DenomsToClaim)
+func hardGenerator(req PostClaimReq) (sdk.Msg, error) {
+	return types.NewMsgClaimHardReward(req.Sender, req.DenomsToClaim...), nil
 }
-func delegatorGenerator(req PostClaimReq) sdk.Msg {
-	return types.NewMsgClaimDelegatorReward(req.Sender, req.MultiplierName, req.DenomsToClaim)
+func delegatorGenerator(req PostClaimReq) (sdk.Msg, error) {
+	return types.NewMsgClaimDelegatorReward(req.Sender, req.DenomsToClaim...), nil
 }
-func swapGenerator(req PostClaimReq) sdk.Msg {
-	return types.NewMsgClaimSwapReward(req.Sender, req.MultiplierName, req.DenomsToClaim)
+func swapGenerator(req PostClaimReq) (sdk.Msg, error) {
+	return types.NewMsgClaimSwapReward(req.Sender, req.DenomsToClaim...), nil
 }
 
-func postClaimHandlerFn(cliCtx context.CLIContext, msgGenerator func(req PostClaimReq) sdk.Msg) http.HandlerFunc {
+func postClaimHandlerFn(cliCtx context.CLIContext, msgGenerator func(req PostClaimReq) (sdk.Msg, error)) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		var requestBody PostClaimReq
 		if !rest.ReadRESTReq(w, r, cliCtx.Codec, &requestBody) {
@@ -65,7 +68,12 @@ func postClaimHandlerFn(cliCtx context.CLIContext, msgGenerator func(req PostCla
 			return
 		}
 
-		msg := msgGenerator(requestBody)
+		msg, err := msgGenerator(requestBody)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
+			return
+		}
+
 		if err := msg.ValidateBasic(); err != nil {
 			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
 			return
@@ -75,20 +83,23 @@ func postClaimHandlerFn(cliCtx context.CLIContext, msgGenerator func(req PostCla
 	}
 }
 
-func usdxMintingVVGenerator(req PostClaimVVestingReq) sdk.Msg {
-	return types.NewMsgClaimUSDXMintingRewardVVesting(req.Sender, req.Receiver, req.MultiplierName)
+func usdxMintingVVGenerator(req PostClaimVVestingReq) (sdk.Msg, error) {
+	if len(req.DenomsToClaim) != 1 {
+		return nil, fmt.Errorf("must only claim %s denom for usdx minting rewards, got '%s", types.USDXMintingRewardDenom, req.DenomsToClaim)
+	}
+	return types.NewMsgClaimUSDXMintingRewardVVesting(req.Sender, req.Receiver, req.DenomsToClaim[0].MultiplierName), nil
 }
-func hardVVGenerator(req PostClaimVVestingReq) sdk.Msg {
-	return types.NewMsgClaimHardRewardVVesting(req.Sender, req.Receiver, req.MultiplierName, req.DenomsToClaim)
+func hardVVGenerator(req PostClaimVVestingReq) (sdk.Msg, error) {
+	return types.NewMsgClaimHardRewardVVesting(req.Sender, req.Receiver, req.DenomsToClaim...), nil
 }
-func delegatorVVGenerator(req PostClaimVVestingReq) sdk.Msg {
-	return types.NewMsgClaimDelegatorRewardVVesting(req.Sender, req.Receiver, req.MultiplierName, req.DenomsToClaim)
+func delegatorVVGenerator(req PostClaimVVestingReq) (sdk.Msg, error) {
+	return types.NewMsgClaimDelegatorRewardVVesting(req.Sender, req.Receiver, req.DenomsToClaim...), nil
 }
-func swapVVGenerator(req PostClaimVVestingReq) sdk.Msg {
-	return types.NewMsgClaimSwapRewardVVesting(req.Sender, req.Receiver, req.MultiplierName, req.DenomsToClaim)
+func swapVVGenerator(req PostClaimVVestingReq) (sdk.Msg, error) {
+	return types.NewMsgClaimSwapRewardVVesting(req.Sender, req.Receiver, req.DenomsToClaim...), nil
 }
 
-func postClaimVVestingHandlerFn(cliCtx context.CLIContext, msgGenerator func(req PostClaimVVestingReq) sdk.Msg) http.HandlerFunc {
+func postClaimVVestingHandlerFn(cliCtx context.CLIContext, msgGenerator func(req PostClaimVVestingReq) (sdk.Msg, error)) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		var requestBody PostClaimVVestingReq
 		if !rest.ReadRESTReq(w, r, cliCtx.Codec, &requestBody) {
@@ -111,7 +122,11 @@ func postClaimVVestingHandlerFn(cliCtx context.CLIContext, msgGenerator func(req
 			return
 		}
 
-		msg := msgGenerator(requestBody)
+		msg, err := msgGenerator(requestBody)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
+			return
+		}
 		if err := msg.ValidateBasic(); err != nil {
 			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
 			return

x/incentive/genesis_test.go

@@ -65,8 +65,29 @@ func (suite *GenesisTestSuite) SetupTest() {
 			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "bnb", suite.genesisTime.Add(-1*oneYear), suite.genesisTime.Add(oneYear), cs(c("hard", 122354)))},
 			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "bnb", suite.genesisTime.Add(-1*oneYear), suite.genesisTime.Add(oneYear), cs(c("hard", 122354)))},
 			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "ukava", suite.genesisTime.Add(-1*oneYear), suite.genesisTime.Add(oneYear), cs(c("hard", 122354)))},
-			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "btcb/usdx", suite.genesisTime.Add(-1*oneYear), suite.genesisTime.Add(oneYear), cs(c("hard", 122354)))},
-			incentive.Multipliers{incentive.NewMultiplier(incentive.Small, 1, d("0.25")), incentive.NewMultiplier(incentive.Large, 12, d("1.0"))},
+			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "btcb/usdx", suite.genesisTime.Add(-1*oneYear), suite.genesisTime.Add(oneYear), cs(c("swp", 122354)))},
+			incentive.MultipliersPerDenom{
+				{
+					Denom: "ukava",
+					Multipliers: incentive.Multipliers{
+						incentive.NewMultiplier(incentive.Large, 12, d("1.0")),
+					},
+				},
+				{
+					Denom: "hard",
+					Multipliers: incentive.Multipliers{
+						incentive.NewMultiplier(incentive.Small, 1, d("0.25")),
+						incentive.NewMultiplier(incentive.Large, 12, d("1.0")),
+					},
+				},
+				{
+					Denom: "swp",
+					Multipliers: incentive.Multipliers{
+						incentive.NewMultiplier(incentive.Small, 1, d("0.25")),
+						incentive.NewMultiplier(incentive.Medium, 6, d("0.8")),
+					},
+				},
+			},
 			suite.genesisTime.Add(5*oneYear),
 		),
 		incentive.DefaultGenesisRewardState,
@@ -104,8 +125,29 @@ func (suite *GenesisTestSuite) TestExportedGenesisMatchesImported() {
 			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "bnb", genesisTime.Add(-1*oneYear), genesisTime.Add(oneYear), cs(c("hard", 122354)))},
 			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "bnb", genesisTime.Add(-1*oneYear), genesisTime.Add(oneYear), cs(c("hard", 122354)))},
 			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "ukava", genesisTime.Add(-1*oneYear), genesisTime.Add(oneYear), cs(c("hard", 122354)))},
-			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "btcb/usdx", genesisTime.Add(-1*oneYear), genesisTime.Add(oneYear), cs(c("swap", 122354)))},
-			incentive.Multipliers{incentive.NewMultiplier(incentive.Small, 1, d("0.25")), incentive.NewMultiplier(incentive.Large, 12, d("1.0"))},
+			incentive.MultiRewardPeriods{incentive.NewMultiRewardPeriod(true, "btcb/usdx", genesisTime.Add(-1*oneYear), genesisTime.Add(oneYear), cs(c("swp", 122354)))},
+			incentive.MultipliersPerDenom{
+				{
+					Denom: "ukava",
+					Multipliers: incentive.Multipliers{
+						incentive.NewMultiplier(incentive.Large, 12, d("1.0")),
+					},
+				},
+				{
+					Denom: "hard",
+					Multipliers: incentive.Multipliers{
+						incentive.NewMultiplier(incentive.Small, 1, d("0.25")),
+						incentive.NewMultiplier(incentive.Large, 12, d("1.0")),
+					},
+				},
+				{
+					Denom: "swp",
+					Multipliers: incentive.Multipliers{
+						incentive.NewMultiplier(incentive.Small, 1, d("0.25")),
+						incentive.NewMultiplier(incentive.Medium, 6, d("0.8")),
+					},
+				},
+			},
 			genesisTime.Add(5*oneYear),
 		),
 		incentive.NewGenesisRewardState(

x/incentive/handler.go

@@ -36,7 +36,7 @@ func NewHandler(k keeper.Keeper) sdk.Handler {
 }
 
 func handleMsgClaimUSDXMintingReward(ctx sdk.Context, k keeper.Keeper, msg types.MsgClaimUSDXMintingReward) (*sdk.Result, error) {
-	err := k.ClaimUSDXMintingReward(ctx, msg.Sender, msg.Sender, types.MultiplierName(msg.MultiplierName))
+	err := k.ClaimUSDXMintingReward(ctx, msg.Sender, msg.Sender, msg.MultiplierName)
 	if err != nil {
 		return nil, err
 	}
@@ -50,7 +50,7 @@ func handleMsgClaimUSDXMintingRewardVVesting(ctx sdk.Context, k keeper.Keeper, m
 	if err := k.ValidateIsValidatorVestingAccount(ctx, msg.Sender); err != nil {
 		return nil, err
 	}
-	err := k.ClaimUSDXMintingReward(ctx, msg.Sender, msg.Receiver, types.MultiplierName(msg.MultiplierName))
+	err := k.ClaimUSDXMintingReward(ctx, msg.Sender, msg.Receiver, msg.MultiplierName)
 	if err != nil {
 		return nil, err
 	}
@@ -60,11 +60,13 @@ func handleMsgClaimUSDXMintingRewardVVesting(ctx sdk.Context, k keeper.Keeper, m
 }
 
 func handleMsgClaimHardReward(ctx sdk.Context, k keeper.Keeper, msg types.MsgClaimHardReward) (*sdk.Result, error) {
-
-	err := k.ClaimHardReward(ctx, msg.Sender, msg.Sender, types.MultiplierName(msg.MultiplierName), msg.DenomsToClaim)
+	for _, selection := range msg.DenomsToClaim {
+		err := k.ClaimHardReward(ctx, msg.Sender, msg.Sender, selection.Denom, selection.MultiplierName)
 		if err != nil {
 			return nil, err
 		}
+
+	}
 	return &sdk.Result{
 		Events: ctx.EventManager().Events(),
 	}, nil
@@ -75,10 +77,13 @@ func handleMsgClaimHardRewardVVesting(ctx sdk.Context, k keeper.Keeper, msg type
 	if err := k.ValidateIsValidatorVestingAccount(ctx, msg.Sender); err != nil {
 		return nil, err
 	}
-	err := k.ClaimHardReward(ctx, msg.Sender, msg.Receiver, types.MultiplierName(msg.MultiplierName), msg.DenomsToClaim)
+	for _, selection := range msg.DenomsToClaim {
+		err := k.ClaimHardReward(ctx, msg.Sender, msg.Receiver, selection.Denom, selection.MultiplierName)
 		if err != nil {
 			return nil, err
 		}
+
+	}
 	return &sdk.Result{
 		Events: ctx.EventManager().Events(),
 	}, nil
@@ -86,10 +91,12 @@ func handleMsgClaimHardRewardVVesting(ctx sdk.Context, k keeper.Keeper, msg type
 
 func handleMsgClaimDelegatorReward(ctx sdk.Context, k keeper.Keeper, msg types.MsgClaimDelegatorReward) (*sdk.Result, error) {
 
-	err := k.ClaimDelegatorReward(ctx, msg.Sender, msg.Sender, types.MultiplierName(msg.MultiplierName), msg.DenomsToClaim)
+	for _, selection := range msg.DenomsToClaim {
+		err := k.ClaimDelegatorReward(ctx, msg.Sender, msg.Sender, selection.Denom, selection.MultiplierName)
 		if err != nil {
 			return nil, err
 		}
+	}
 	return &sdk.Result{
 		Events: ctx.EventManager().Events(),
 	}, nil
@@ -100,10 +107,12 @@ func handleMsgClaimDelegatorRewardVVesting(ctx sdk.Context, k keeper.Keeper, msg
 	if err := k.ValidateIsValidatorVestingAccount(ctx, msg.Sender); err != nil {
 		return nil, err
 	}
-	err := k.ClaimDelegatorReward(ctx, msg.Sender, msg.Receiver, types.MultiplierName(msg.MultiplierName), msg.DenomsToClaim)
+	for _, selection := range msg.DenomsToClaim {
+		err := k.ClaimDelegatorReward(ctx, msg.Sender, msg.Receiver, selection.Denom, selection.MultiplierName)
 		if err != nil {
 			return nil, err
 		}
+	}
 	return &sdk.Result{
 		Events: ctx.EventManager().Events(),
 	}, nil
@@ -111,10 +120,12 @@ func handleMsgClaimDelegatorRewardVVesting(ctx sdk.Context, k keeper.Keeper, msg
 
 func handleMsgClaimSwapReward(ctx sdk.Context, k keeper.Keeper, msg types.MsgClaimSwapReward) (*sdk.Result, error) {
 
-	err := k.ClaimSwapReward(ctx, msg.Sender, msg.Sender, types.MultiplierName(msg.MultiplierName), msg.DenomsToClaim)
+	for _, selection := range msg.DenomsToClaim {
+		err := k.ClaimSwapReward(ctx, msg.Sender, msg.Sender, selection.Denom, selection.MultiplierName)
 		if err != nil {
 			return nil, err
 		}
+	}
 	return &sdk.Result{
 		Events: ctx.EventManager().Events(),
 	}, nil
@@ -125,10 +136,12 @@ func handleMsgClaimSwapRewardVVesting(ctx sdk.Context, k keeper.Keeper, msg type
 	if err := k.ValidateIsValidatorVestingAccount(ctx, msg.Sender); err != nil {
 		return nil, err
 	}
-	err := k.ClaimSwapReward(ctx, msg.Sender, msg.Receiver, types.MultiplierName(msg.MultiplierName), msg.DenomsToClaim)
+	for _, selection := range msg.DenomsToClaim {
+		err := k.ClaimSwapReward(ctx, msg.Sender, msg.Receiver, selection.Denom, selection.MultiplierName)
 		if err != nil {
 			return nil, err
 		}
+	}
 	return &sdk.Result{
 		Events: ctx.EventManager().Events(),
 	}, nil

x/incentive/handler_delegator_test.go

@@ -9,7 +9,7 @@ import (
 	"github.com/kava-labs/kava/x/incentive/types"
 )
 
-func (suite *HandlerTestSuite) TestPayoutDelegatorClaim() {
+func (suite *HandlerTestSuite) TestPayoutDelegatorClaimMultiDenom() {
 	userAddr := suite.addrs[0]
 	receiverAddr := suite.addrs[1]
 
@@ -18,7 +18,7 @@ func (suite *HandlerTestSuite) TestPayoutDelegatorClaim() {
 		WithSimpleAccount(receiverAddr, nil)
 
 	incentBuilder := suite.incentiveBuilder().
-		WithSimpleDelegatorRewardPeriod(types.BondDenom, cs(c("hard", 1e6)))
+		WithSimpleDelegatorRewardPeriod(types.BondDenom, cs(c("hard", 1e6), c("swap", 1e6)))
 
 	suite.SetupWithGenState(authBulder, incentBuilder)
 
@@ -35,22 +35,24 @@ func (suite *HandlerTestSuite) TestPayoutDelegatorClaim() {
 
 	// Check rewards cannot be claimed by vvesting claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimDelegatorRewardVVesting(userAddr, receiverAddr, "large", nil),
+		types.NewMsgClaimDelegatorRewardVVesting(userAddr, receiverAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
-	// Claim a single denom
+	// Claim denoms
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimDelegatorReward(userAddr, "large", nil),
+		types.NewMsgClaimDelegatorReward(userAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.NoError(err)
 
 	// Check rewards were paid out
-	expectedRewards := cs(c("hard", 2*7*1e6))
-	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewards...))
+	expectedRewardsHard := c("hard", int64(0.2*float64(2*7*1e6)))
+	expectedRewardsSwap := c("swap", int64(0.5*float64(2*7*1e6)))
+	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewardsHard, expectedRewardsSwap))
 
 	suite.VestingPeriodsEqual(userAddr, vesting.Periods{
-		{Length: 33004786, Amount: expectedRewards},
+		{Length: (17+31)*secondsPerDay - 2*7, Amount: cs(expectedRewardsHard)},
+		{Length: (28 + 31 + 30 + 31 + 30) * secondsPerDay, Amount: cs(expectedRewardsSwap)}, // second length is stacked on top of the first
 	})
 	// Check that claimed coins have been removed from a claim's reward
 	suite.DelegatorRewardEquals(userAddr, nil)
@@ -80,13 +82,13 @@ func (suite *HandlerTestSuite) TestPayoutDelegatorClaimSingleDenom() {
 
 	// Check rewards cannot be claimed by vvesting claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimDelegatorRewardVVesting(userAddr, suite.addrs[1], "large", nil),
+		types.NewMsgClaimDelegatorRewardVVesting(userAddr, suite.addrs[1], types.NewSelection("swap", "large")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimDelegatorReward(userAddr, "large", []string{"swap"}),
+		types.NewMsgClaimDelegatorReward(userAddr, types.NewSelection("swap", "large")),
 	)
 	suite.NoError(err)
 
@@ -95,14 +97,14 @@ func (suite *HandlerTestSuite) TestPayoutDelegatorClaimSingleDenom() {
 	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewards))
 
 	suite.VestingPeriodsEqual(userAddr, vesting.Periods{
-		{Length: 33004786, Amount: cs(expectedRewards)},
+		{Length: (17+31+28+31+30+31+30+31+31+30+31+30+31)*secondsPerDay - 2*7, Amount: cs(expectedRewards)},
 	})
 
 	// Check that claimed coins have been removed from a claim's reward
 	suite.DelegatorRewardEquals(userAddr, cs(c("hard", 2*7*1e6)))
 }
 
-func (suite *HandlerTestSuite) TestPayoutDelegatorClaimVVesting() {
+func (suite *HandlerTestSuite) TestPayoutDelegatorClaimVVestingMultiDenom() {
 	valAddr, receiverAddr := suite.addrs[0], suite.addrs[1]
 
 	vva := suite.NewValidatorVestingAccountWithBalance(valAddr, cs(c("ukava", 1e12)))
@@ -112,7 +114,7 @@ func (suite *HandlerTestSuite) TestPayoutDelegatorClaimVVesting() {
 		WithSimpleAccount(receiverAddr, nil)
 
 	incentBuilder := suite.incentiveBuilder().
-		WithSimpleDelegatorRewardPeriod(types.BondDenom, cs(c("hard", 1e6)))
+		WithSimpleDelegatorRewardPeriod(types.BondDenom, cs(c("hard", 1e6), c("swap", 1e6)))
 
 	suite.SetupWithGenState(authBulder, incentBuilder)
 
@@ -129,22 +131,24 @@ func (suite *HandlerTestSuite) TestPayoutDelegatorClaimVVesting() {
 
 	// Check rewards cannot be claimed by normal claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimDelegatorReward(valAddr, "large", nil),
+		types.NewMsgClaimDelegatorReward(valAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimDelegatorRewardVVesting(valAddr, receiverAddr, "large", nil),
+		types.NewMsgClaimDelegatorRewardVVesting(valAddr, receiverAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.NoError(err)
 
 	// Check rewards were paid out
-	expectedRewards := c("hard", 2*7*1e6)
-	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewards))
+	expectedRewardsHard := c("hard", int64(0.2*float64(2*7*1e6)))
+	expectedRewardsSwap := c("swap", int64(0.5*float64(2*7*1e6)))
+	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewardsHard, expectedRewardsSwap))
 
 	suite.VestingPeriodsEqual(receiverAddr, vesting.Periods{
-		{Length: 33004786, Amount: cs(expectedRewards)},
+		{Length: (17+31)*secondsPerDay - 2*7, Amount: cs(expectedRewardsHard)},
+		{Length: (28 + 31 + 30 + 31 + 30) * secondsPerDay, Amount: cs(expectedRewardsSwap)}, // second length is stacked on top of the first
 	})
 
 	// Check that each claim reward coin's amount has been reset to 0
@@ -178,13 +182,13 @@ func (suite *HandlerTestSuite) TestPayoutDelegatorClaimVVestingSingleDenom() {
 
 	// Check rewards cannot be claimed by normal claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimDelegatorReward(valAddr, "large", []string{"swap"}),
+		types.NewMsgClaimDelegatorReward(valAddr, types.NewSelection("swap", "large")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimDelegatorRewardVVesting(valAddr, receiverAddr, "large", []string{"swap"}),
+		types.NewMsgClaimDelegatorRewardVVesting(valAddr, receiverAddr, types.NewSelection("swap", "large")),
 	)
 	suite.NoError(err)
 
@@ -193,7 +197,7 @@ func (suite *HandlerTestSuite) TestPayoutDelegatorClaimVVestingSingleDenom() {
 	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewards))
 
 	suite.VestingPeriodsEqual(receiverAddr, vesting.Periods{
-		{Length: 33004786, Amount: cs(expectedRewards)},
+		{Length: (17+31+28+31+30+31+30+31+31+30+31+30+31)*secondsPerDay - 2*7, Amount: cs(expectedRewards)},
 	})
 
 	// Check that claimed coins have been removed from a claim's reward

x/incentive/handler_hard_test.go

@@ -8,7 +8,7 @@ import (
 	"github.com/kava-labs/kava/x/incentive/types"
 )
 
-func (suite *HandlerTestSuite) TestPayoutHardClaim() {
+func (suite *HandlerTestSuite) TestPayoutHardClaimMultiDenom() {
 	userAddr, receiverAddr := suite.addrs[0], suite.addrs[1]
 
 	authBulder := suite.authBuilder().
@@ -16,8 +16,8 @@ func (suite *HandlerTestSuite) TestPayoutHardClaim() {
 		WithSimpleAccount(receiverAddr, nil)
 
 	incentBuilder := suite.incentiveBuilder().
-		WithSimpleSupplyRewardPeriod("bnb", cs(c("hard", 1e6))).
-		WithSimpleBorrowRewardPeriod("bnb", cs(c("hard", 1e6)))
+		WithSimpleSupplyRewardPeriod("bnb", cs(c("hard", 1e6), c("swap", 1e6))).
+		WithSimpleBorrowRewardPeriod("bnb", cs(c("hard", 1e6), c("swap", 1e6)))
 
 	suite.SetupWithGenState(authBulder, incentBuilder)
 
@@ -32,22 +32,24 @@ func (suite *HandlerTestSuite) TestPayoutHardClaim() {
 
 	// Check rewards cannot be claimed by vvesting claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimHardRewardVVesting(userAddr, receiverAddr, "large", nil),
+		types.NewMsgClaimHardRewardVVesting(userAddr, receiverAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
-	// Claim a single denom
+	// Claim denoms
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimHardReward(userAddr, "large", nil),
+		types.NewMsgClaimHardReward(userAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.NoError(err)
 
 	// Check rewards were paid out
-	expectedRewards := cs(c("hard", 2*7*1e6))
-	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewards...))
+	expectedRewardsHard := c("hard", int64(0.2*float64(2*7*1e6)))
+	expectedRewardsSwap := c("swap", int64(0.5*float64(2*7*1e6)))
+	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewardsHard, expectedRewardsSwap))
 
 	suite.VestingPeriodsEqual(userAddr, vesting.Periods{
-		{Length: 33004793, Amount: expectedRewards},
+		{Length: (17+31)*secondsPerDay - 7, Amount: cs(expectedRewardsHard)},
+		{Length: (28 + 31 + 30 + 31 + 30) * secondsPerDay, Amount: cs(expectedRewardsSwap)}, // second length is stacked on top of the first
 	})
 	// Check that claimed coins have been removed from a claim's reward
 	suite.HardRewardEquals(userAddr, nil)
@@ -76,13 +78,13 @@ func (suite *HandlerTestSuite) TestPayoutHardClaimSingleDenom() {
 
 	// Check rewards cannot be claimed by vvesting claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimHardRewardVVesting(userAddr, suite.addrs[1], "large", []string{"swap"}),
+		types.NewMsgClaimHardRewardVVesting(userAddr, suite.addrs[1], types.NewSelection("swap", "large")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimHardReward(userAddr, "large", []string{"swap"}),
+		types.NewMsgClaimHardReward(userAddr, types.NewSelection("swap", "large")),
 	)
 	suite.NoError(err)
 
@@ -91,14 +93,14 @@ func (suite *HandlerTestSuite) TestPayoutHardClaimSingleDenom() {
 	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewards))
 
 	suite.VestingPeriodsEqual(userAddr, vesting.Periods{
-		{Length: 33004793, Amount: cs(expectedRewards)},
+		{Length: (17+31+28+31+30+31+30+31+31+30+31+30+31)*secondsPerDay - 7, Amount: cs(expectedRewards)},
 	})
 
 	// Check that claimed coins have been removed from a claim's reward
 	suite.HardRewardEquals(userAddr, cs(c("hard", 2*7*1e6)))
 }
 
-func (suite *HandlerTestSuite) TestPayoutHardClaimVVesting() {
+func (suite *HandlerTestSuite) TestPayoutHardClaimVVestingMultiDenom() {
 	valAddr, receiverAddr := suite.addrs[0], suite.addrs[1]
 
 	vva := suite.NewValidatorVestingAccountWithBalance(valAddr, cs(c("bnb", 1e12)))
@@ -108,8 +110,8 @@ func (suite *HandlerTestSuite) TestPayoutHardClaimVVesting() {
 		WithSimpleAccount(receiverAddr, nil)
 
 	incentBuilder := suite.incentiveBuilder().
-		WithSimpleSupplyRewardPeriod("bnb", cs(c("hard", 1e6))).
-		WithSimpleBorrowRewardPeriod("bnb", cs(c("hard", 1e6)))
+		WithSimpleSupplyRewardPeriod("bnb", cs(c("hard", 1e6), c("swap", 1e6))).
+		WithSimpleBorrowRewardPeriod("bnb", cs(c("hard", 1e6), c("swap", 1e6)))
 
 	suite.SetupWithGenState(authBulder, incentBuilder)
 
@@ -124,22 +126,24 @@ func (suite *HandlerTestSuite) TestPayoutHardClaimVVesting() {
 
 	// Check rewards cannot be claimed by normal claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimHardReward(valAddr, "large", nil),
+		types.NewMsgClaimHardReward(valAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimHardRewardVVesting(valAddr, receiverAddr, "large", nil),
+		types.NewMsgClaimHardRewardVVesting(valAddr, receiverAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.NoError(err)
 
 	// Check rewards were paid out
-	expectedRewards := c("hard", 2*7*1e6)
-	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewards))
+	expectedRewardsHard := c("hard", int64(0.2*float64(2*7*1e6)))
+	expectedRewardsSwap := c("swap", int64(0.5*float64(2*7*1e6)))
+	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewardsHard, expectedRewardsSwap))
 
 	suite.VestingPeriodsEqual(receiverAddr, vesting.Periods{
-		{Length: 33004793, Amount: cs(expectedRewards)},
+		{Length: (17+31)*secondsPerDay - 7, Amount: cs(expectedRewardsHard)},
+		{Length: (28 + 31 + 30 + 31 + 30) * secondsPerDay, Amount: cs(expectedRewardsSwap)}, // second length is stacked on top of the first
 	})
 
 	// Check that each claim reward coin's amount has been reset to 0
@@ -172,13 +176,13 @@ func (suite *HandlerTestSuite) TestPayoutHardClaimVVestingSingleDenom() {
 
 	// Check rewards cannot be claimed by normal claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimHardReward(valAddr, "large", []string{"swap"}),
+		types.NewMsgClaimHardReward(valAddr, types.NewSelection("swap", "large")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimHardRewardVVesting(valAddr, receiverAddr, "large", []string{"swap"}),
+		types.NewMsgClaimHardRewardVVesting(valAddr, receiverAddr, types.NewSelection("swap", "large")),
 	)
 	suite.NoError(err)
 
@@ -187,7 +191,7 @@ func (suite *HandlerTestSuite) TestPayoutHardClaimVVestingSingleDenom() {
 	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewards))
 
 	suite.VestingPeriodsEqual(receiverAddr, vesting.Periods{
-		{Length: 33004793, Amount: cs(expectedRewards)},
+		{Length: (17+31+28+31+30+31+30+31+31+30+31+30+31)*secondsPerDay - 7, Amount: cs(expectedRewards)},
 	})
 
 	// Check that claimed coins have been removed from a claim's reward

x/incentive/handler_swap_test.go

@@ -11,26 +11,18 @@ import (
 	abci "github.com/tendermint/tendermint/abci/types"
 
 	"github.com/kava-labs/kava/app"
-	cdpkeeper "github.com/kava-labs/kava/x/cdp/keeper"
-	hardkeeper "github.com/kava-labs/kava/x/hard/keeper"
-	"github.com/kava-labs/kava/x/incentive"
-	"github.com/kava-labs/kava/x/incentive/keeper"
 	"github.com/kava-labs/kava/x/incentive/testutil"
 	"github.com/kava-labs/kava/x/incentive/types"
 	"github.com/kava-labs/kava/x/kavadist"
 	validatorvesting "github.com/kava-labs/kava/x/validator-vesting"
 )
 
+const secondsPerDay = 24 * 60 * 60
+
 // Test suite used for all keeper tests
 type HandlerTestSuite struct {
 	testutil.IntegrationTester
 
-	// TODO remove these
-	keeper     keeper.Keeper
-	hardKeeper hardkeeper.Keeper
-	cdpKeeper  cdpkeeper.Keeper
-	handler    sdk.Handler
-
 	genesisTime time.Time
 	addrs       []sdk.AccAddress
 }
@@ -52,11 +44,6 @@ func (suite *HandlerTestSuite) SetupTest() {
 func (suite *HandlerTestSuite) SetupApp() {
 	suite.App = app.NewTestApp()
 
-	suite.keeper = suite.App.GetIncentiveKeeper()
-	suite.hardKeeper = suite.App.GetHardKeeper()
-	suite.cdpKeeper = suite.App.GetCDPKeeper()
-	suite.handler = incentive.NewHandler(suite.keeper)
-
 	suite.Ctx = suite.App.NewContext(true, abci.Header{Height: 1, Time: suite.genesisTime})
 }
 
@@ -106,13 +93,32 @@ func (suite *HandlerTestSuite) authBuilder() app.AuthGenesisBuilder {
 func (suite *HandlerTestSuite) incentiveBuilder() testutil.IncentiveGenesisBuilder {
 	return testutil.NewIncentiveGenesisBuilder().
 		WithGenesisTime(suite.genesisTime).
-		WithMultipliers(types.Multipliers{
+		WithMultipliers(types.MultipliersPerDenom{
+			{
+				Denom: "hard",
+				Multipliers: types.Multipliers{
 					types.NewMultiplier(types.MultiplierName("small"), 1, d("0.2")),
 					types.NewMultiplier(types.MultiplierName("large"), 12, d("1.0")),
+				},
+			},
+			{
+				Denom: "swap",
+				Multipliers: types.Multipliers{
+					types.NewMultiplier(types.MultiplierName("medium"), 6, d("0.5")),
+					types.NewMultiplier(types.MultiplierName("large"), 12, d("1.0")),
+				},
+			},
+			{
+				Denom: "ukava",
+				Multipliers: types.Multipliers{
+					types.NewMultiplier(types.MultiplierName("small"), 1, d("0.2")),
+					types.NewMultiplier(types.MultiplierName("large"), 12, d("1.0")),
+				},
+			},
 		})
 }
 
-func (suite *HandlerTestSuite) TestPayoutSwapClaim() {
+func (suite *HandlerTestSuite) TestPayoutSwapClaimMultiDenom() {
 	userAddr := suite.addrs[0]
 
 	authBulder := suite.authBuilder().
@@ -134,22 +140,24 @@ func (suite *HandlerTestSuite) TestPayoutSwapClaim() {
 
 	// Check rewards cannot be claimed by vvesting claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimSwapRewardVVesting(userAddr, suite.addrs[1], "large", nil),
+		types.NewMsgClaimSwapRewardVVesting(userAddr, suite.addrs[1], types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimSwapReward(userAddr, "large", nil),
+		types.NewMsgClaimSwapReward(userAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.NoError(err)
 
 	// Check rewards were paid out
-	expectedRewards := cs(c("swap", 7*1e6), c("hard", 7*1e6))
-	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewards...))
+	expectedRewardsHard := c("hard", int64(0.2*float64(7*1e6)))
+	expectedRewardsSwap := c("swap", int64(0.5*float64(7*1e6)))
+	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewardsHard, expectedRewardsSwap))
 
 	suite.VestingPeriodsEqual(userAddr, vesting.Periods{
-		{Length: 33004793, Amount: expectedRewards},
+		{Length: (17+31)*secondsPerDay - 7, Amount: cs(expectedRewardsHard)},
+		{Length: (28 + 31 + 30 + 31 + 30) * secondsPerDay, Amount: cs(expectedRewardsSwap)}, // second length is stacked on top of the first
 	})
 
 	// Check that each claim reward coin's amount has been reset to 0
@@ -179,13 +187,13 @@ func (suite *HandlerTestSuite) TestPayoutSwapClaimSingleDenom() {
 
 	// Check rewards cannot be claimed by vvesting claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimSwapRewardVVesting(userAddr, suite.addrs[1], "large", nil),
+		types.NewMsgClaimSwapRewardVVesting(userAddr, suite.addrs[1], types.NewSelection("swap", "large")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimSwapReward(userAddr, "large", []string{"swap"}),
+		types.NewMsgClaimSwapReward(userAddr, types.NewSelection("swap", "large")),
 	)
 	suite.NoError(err)
 
@@ -194,14 +202,14 @@ func (suite *HandlerTestSuite) TestPayoutSwapClaimSingleDenom() {
 	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewards))
 
 	suite.VestingPeriodsEqual(userAddr, vesting.Periods{
-		{Length: 33004793, Amount: cs(expectedRewards)},
+		{Length: (17+31+28+31+30+31+30+31+31+30+31+30+31)*secondsPerDay - 7, Amount: cs(expectedRewards)},
 	})
 
 	// Check that claimed coins have been removed from a claim's reward
 	suite.SwapRewardEquals(userAddr, cs(c("hard", 7*1e6)))
 }
 
-func (suite *HandlerTestSuite) TestPayoutSwapClaimVVesting() {
+func (suite *HandlerTestSuite) TestPayoutSwapClaimVVestingMultiDenom() {
 	valAddr, receiverAddr := suite.addrs[0], suite.addrs[1]
 
 	vva := suite.NewValidatorVestingAccountWithBalance(valAddr, cs(c("ukava", 1e12), c("busd", 1e12)))
@@ -227,22 +235,24 @@ func (suite *HandlerTestSuite) TestPayoutSwapClaimVVesting() {
 
 	// Check rewards cannot be claimed by normal claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimSwapReward(valAddr, "large", nil),
+		types.NewMsgClaimSwapReward(valAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimSwapRewardVVesting(valAddr, receiverAddr, "large", nil),
+		types.NewMsgClaimSwapRewardVVesting(valAddr, receiverAddr, types.NewSelection("hard", "small"), types.NewSelection("swap", "medium")),
 	)
 	suite.NoError(err)
 
 	// Check rewards were paid out
-	expectedRewards := cs(c("hard", 7*1e6), c("swap", 7*1e6))
-	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewards...))
+	expectedRewardsHard := c("hard", int64(0.2*float64(7*1e6)))
+	expectedRewardsSwap := c("swap", int64(0.5*float64(7*1e6)))
+	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewardsHard, expectedRewardsSwap))
 
 	suite.VestingPeriodsEqual(receiverAddr, vesting.Periods{
-		{Length: 33004793, Amount: expectedRewards},
+		{Length: (17+31)*secondsPerDay - 7, Amount: cs(expectedRewardsHard)},
+		{Length: (28 + 31 + 30 + 31 + 30) * secondsPerDay, Amount: cs(expectedRewardsSwap)}, // second length is stacked on top of the first
 	})
 
 	// Check that each claim reward coin's amount has been reset to 0
@@ -275,13 +285,13 @@ func (suite *HandlerTestSuite) TestPayoutSwapClaimVVestingSingleDenom() {
 
 	// Check rewards cannot be claimed by normal claim msgs
 	err := suite.DeliverIncentiveMsg(
-		types.NewMsgClaimSwapReward(valAddr, "large", []string{"swap"}),
+		types.NewMsgClaimSwapReward(valAddr, types.NewSelection("swap", "large")),
 	)
 	suite.ErrorIs(err, types.ErrInvalidAccountType)
 
 	// Claim rewards
 	err = suite.DeliverIncentiveMsg(
-		types.NewMsgClaimSwapRewardVVesting(valAddr, receiverAddr, "large", []string{"swap"}),
+		types.NewMsgClaimSwapRewardVVesting(valAddr, receiverAddr, types.NewSelection("swap", "large")),
 	)
 	suite.NoError(err)
 
@@ -290,7 +300,7 @@ func (suite *HandlerTestSuite) TestPayoutSwapClaimVVestingSingleDenom() {
 	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewards))
 
 	suite.VestingPeriodsEqual(receiverAddr, vesting.Periods{
-		{Length: 33004793, Amount: cs(expectedRewards)},
+		{Length: (17+31+28+31+30+31+30+31+31+30+31+30+31)*secondsPerDay - 7, Amount: cs(expectedRewards)},
 	})
 
 	// Check that claimed coins have been removed from a claim's reward

x/incentive/handler_usdx_test.go

@@ -44,7 +44,7 @@ func (suite *HandlerTestSuite) TestPayoutUSDXClaim() {
 	suite.BalanceEquals(userAddr, preClaimBal.Add(expectedRewards...))
 
 	suite.VestingPeriodsEqual(userAddr, vesting.Periods{
-		{Length: 33004793, Amount: expectedRewards},
+		{Length: (17+31+28+31+30+31+30+31+31+30+31+30+31)*secondsPerDay - 7, Amount: expectedRewards},
 	})
 	// Check that claimed coins have been removed from a claim's reward
 	suite.USDXRewardEquals(userAddr, c(types.USDXMintingRewardDenom, 0))
@@ -88,7 +88,7 @@ func (suite *HandlerTestSuite) TestPayoutUSDXClaimVVesting() {
 	suite.BalanceEquals(receiverAddr, preClaimBal.Add(expectedRewards))
 
 	suite.VestingPeriodsEqual(receiverAddr, vesting.Periods{
-		{Length: 33004793, Amount: cs(expectedRewards)},
+		{Length: (17+31+28+31+30+31+30+31+31+30+31+30+31)*secondsPerDay - 7, Amount: cs(expectedRewards)},
 	})
 
 	// Check that each claim reward coin's amount has been reset to 0

x/incentive/keeper/claim.go

@@ -10,15 +10,20 @@ import (
 
 // ClaimUSDXMintingReward pays out funds from a claim to a receiver account.
 // Rewards are removed from a claim and paid out according to the multiplier, which reduces the reward amount in exchange for shorter vesting times.
-func (k Keeper) ClaimUSDXMintingReward(ctx sdk.Context, owner, receiver sdk.AccAddress, multiplierName types.MultiplierName) error {
+func (k Keeper) ClaimUSDXMintingReward(ctx sdk.Context, owner, receiver sdk.AccAddress, multiplierName string) error {
 	claim, found := k.GetUSDXMintingClaim(ctx, owner)
 	if !found {
 		return sdkerrors.Wrapf(types.ErrClaimNotFound, "address: %s", owner)
 	}
 
-	multiplier, found := k.GetMultiplier(ctx, multiplierName)
+	name, err := types.ParseMultiplierName(multiplierName)
+	if err != nil {
+		return err
+	}
+
+	multiplier, found := k.GetMultiplierByDenom(ctx, types.USDXMintingRewardDenom, name)
 	if !found {
-		return sdkerrors.Wrapf(types.ErrInvalidMultiplier, string(multiplierName))
+		return sdkerrors.Wrapf(types.ErrInvalidMultiplier, "denom '%s' has no multiplier '%s'", types.USDXMintingRewardDenom, name)
 	}
 
 	claimEnd := k.GetClaimEnd(ctx)
@@ -27,7 +32,7 @@ func (k Keeper) ClaimUSDXMintingReward(ctx sdk.Context, owner, receiver sdk.AccA
 		return sdkerrors.Wrapf(types.ErrClaimExpired, "block time %s > claim end time %s", ctx.BlockTime(), claimEnd)
 	}
 
-	claim, err := k.SynchronizeUSDXMintingClaim(ctx, claim)
+	claim, err = k.SynchronizeUSDXMintingClaim(ctx, claim)
 	if err != nil {
 		return err
 	}
@@ -62,15 +67,15 @@ func (k Keeper) ClaimUSDXMintingReward(ctx sdk.Context, owner, receiver sdk.AccA
 
 // ClaimHardReward pays out funds from a claim to a receiver account.
 // Rewards are removed from a claim and paid out according to the multiplier, which reduces the reward amount in exchange for shorter vesting times.
-func (k Keeper) ClaimHardReward(ctx sdk.Context, owner, receiver sdk.AccAddress, multiplierName types.MultiplierName, denomsToClaim []string) error {
-	_, found := k.GetHardLiquidityProviderClaim(ctx, owner)
-	if !found {
-		return sdkerrors.Wrapf(types.ErrClaimNotFound, "address: %s", owner)
+func (k Keeper) ClaimHardReward(ctx sdk.Context, owner, receiver sdk.AccAddress, denom string, multiplierName string) error {
+	name, err := types.ParseMultiplierName(multiplierName)
+	if err != nil {
+		return err
 	}
 
-	multiplier, found := k.GetMultiplier(ctx, multiplierName)
+	multiplier, found := k.GetMultiplierByDenom(ctx, denom, name)
 	if !found {
-		return sdkerrors.Wrapf(types.ErrInvalidMultiplier, string(multiplierName))
+		return sdkerrors.Wrapf(types.ErrInvalidMultiplier, "denom '%s' has no multiplier '%s'", denom, name)
 	}
 
 	claimEnd := k.GetClaimEnd(ctx)
@@ -86,8 +91,10 @@ func (k Keeper) ClaimHardReward(ctx sdk.Context, owner, receiver sdk.AccAddress,
 		return sdkerrors.Wrapf(types.ErrClaimNotFound, "address: %s", owner)
 	}
 
-	claimingCoins := types.FilterCoins(syncedClaim.Reward, denomsToClaim)
-	rewardCoins := types.MultiplyCoins(claimingCoins, multiplier.Factor)
+	amt := syncedClaim.Reward.AmountOf(denom)
+
+	claimingCoins := sdk.NewCoins(sdk.NewCoin(denom, amt))
+	rewardCoins := sdk.NewCoins(sdk.NewCoin(denom, amt.ToDec().Mul(multiplier.Factor).RoundInt()))
 	if rewardCoins.IsZero() {
 		return types.ErrZeroClaim
 	}
@@ -118,15 +125,20 @@ func (k Keeper) ClaimHardReward(ctx sdk.Context, owner, receiver sdk.AccAddress,
 
 // ClaimDelegatorReward pays out funds from a claim to a receiver account.
 // Rewards are removed from a claim and paid out according to the multiplier, which reduces the reward amount in exchange for shorter vesting times.
-func (k Keeper) ClaimDelegatorReward(ctx sdk.Context, owner, receiver sdk.AccAddress, multiplierName types.MultiplierName, denomsToClaim []string) error {
+func (k Keeper) ClaimDelegatorReward(ctx sdk.Context, owner, receiver sdk.AccAddress, denom string, multiplierName string) error {
 	claim, found := k.GetDelegatorClaim(ctx, owner)
 	if !found {
 		return sdkerrors.Wrapf(types.ErrClaimNotFound, "address: %s", owner)
 	}
 
-	multiplier, found := k.GetMultiplier(ctx, multiplierName)
+	name, err := types.ParseMultiplierName(multiplierName)
+	if err != nil {
+		return err
+	}
+
+	multiplier, found := k.GetMultiplierByDenom(ctx, denom, name)
 	if !found {
-		return sdkerrors.Wrapf(types.ErrInvalidMultiplier, string(multiplierName))
+		return sdkerrors.Wrapf(types.ErrInvalidMultiplier, "denom '%s' has no multiplier '%s'", denom, name)
 	}
 
 	claimEnd := k.GetClaimEnd(ctx)
@@ -140,8 +152,10 @@ func (k Keeper) ClaimDelegatorReward(ctx sdk.Context, owner, receiver sdk.AccAdd
 		return sdkerrors.Wrapf(types.ErrClaimNotFound, "address: %s", owner)
 	}
 
-	claimingCoins := types.FilterCoins(syncedClaim.Reward, denomsToClaim)
-	rewardCoins := types.MultiplyCoins(claimingCoins, multiplier.Factor)
+	amt := syncedClaim.Reward.AmountOf(denom)
+
+	claimingCoins := sdk.NewCoins(sdk.NewCoin(denom, amt))
+	rewardCoins := sdk.NewCoins(sdk.NewCoin(denom, amt.ToDec().Mul(multiplier.Factor).RoundInt()))
 	if rewardCoins.IsZero() {
 		return types.ErrZeroClaim
 	}
@@ -173,15 +187,14 @@ func (k Keeper) ClaimDelegatorReward(ctx sdk.Context, owner, receiver sdk.AccAdd
 
 // ClaimSwapReward pays out funds from a claim to a receiver account.
 // Rewards are removed from a claim and paid out according to the multiplier, which reduces the reward amount in exchange for shorter vesting times.
-func (k Keeper) ClaimSwapReward(ctx sdk.Context, owner, receiver sdk.AccAddress, multiplierName types.MultiplierName, denomsToClaim []string) error {
-	_, found := k.GetSwapClaim(ctx, owner)
-	if !found {
-		return sdkerrors.Wrapf(types.ErrClaimNotFound, "address: %s", owner)
+func (k Keeper) ClaimSwapReward(ctx sdk.Context, owner, receiver sdk.AccAddress, denom string, multiplierName string) error {
+	name, err := types.ParseMultiplierName(multiplierName)
+	if err != nil {
+		return err
 	}
-
-	multiplier, found := k.GetMultiplier(ctx, multiplierName)
+	multiplier, found := k.GetMultiplierByDenom(ctx, denom, name)
 	if !found {
-		return sdkerrors.Wrapf(types.ErrInvalidMultiplier, string(multiplierName))
+		return sdkerrors.Wrapf(types.ErrInvalidMultiplier, "denom '%s' has no multiplier '%s'", denom, name)
 	}
 
 	claimEnd := k.GetClaimEnd(ctx)
@@ -195,8 +208,10 @@ func (k Keeper) ClaimSwapReward(ctx sdk.Context, owner, receiver sdk.AccAddress,
 		return sdkerrors.Wrapf(types.ErrClaimNotFound, "address: %s", owner)
 	}
 
-	claimingCoins := types.FilterCoins(syncedClaim.Reward, denomsToClaim)
-	rewardCoins := types.MultiplyCoins(claimingCoins, multiplier.Factor)
+	amt := syncedClaim.Reward.AmountOf(denom)
+
+	claimingCoins := sdk.NewCoins(sdk.NewCoin(denom, amt))
+	rewardCoins := sdk.NewCoins(sdk.NewCoin(denom, amt.ToDec().Mul(multiplier.Factor).RoundInt()))
 	if rewardCoins.IsZero() {
 		return types.ErrZeroClaim
 	}
@@ -236,4 +251,3 @@ func (k Keeper) ValidateIsValidatorVestingAccount(ctx sdk.Context, address sdk.A
 	}
 	return nil
 }
-

x/incentive/keeper/claim_test.go

@@ -26,10 +26,15 @@ func (suite *ClaimTests) ErrorIs(err, target error) bool {
 func (suite *ClaimTests) TestCannotClaimWhenMultiplierNotRecognised() {
 	subspace := &fakeParamSubspace{
 		params: types.Params{
-			ClaimMultipliers: types.Multipliers{
+			ClaimMultipliers: types.MultipliersPerDenom{
+				{
+					Denom: "hard",
+					Multipliers: types.Multipliers{
 						types.NewMultiplier(types.Small, 1, d("0.2")),
 					},
 				},
+			},
+		},
 	}
 	suite.keeper = suite.NewKeeper(subspace, nil, nil, nil, nil, nil, nil)
 
@@ -41,16 +46,11 @@ func (suite *ClaimTests) TestCannotClaimWhenMultiplierNotRecognised() {
 	suite.storeDelegatorClaim(claim)
 
 	// multiplier not in params
-	err := suite.keeper.ClaimDelegatorReward(suite.ctx, claim.Owner, claim.Owner, types.Large, nil)
+	err := suite.keeper.ClaimDelegatorReward(suite.ctx, claim.Owner, claim.Owner, "hard", "large")
 	suite.ErrorIs(err, types.ErrInvalidMultiplier)
 
 	// invalid multiplier name
-	err = suite.keeper.ClaimDelegatorReward(suite.ctx, claim.Owner, claim.Owner, "", nil)
-	suite.ErrorIs(err, types.ErrInvalidMultiplier)
-
-	// invalid multiplier name
-	const zeroWidthSpace = "​"
-	err = suite.keeper.ClaimDelegatorReward(suite.ctx, claim.Owner, claim.Owner, types.Small+zeroWidthSpace, nil)
+	err = suite.keeper.ClaimDelegatorReward(suite.ctx, claim.Owner, claim.Owner, "hard", "")
 	suite.ErrorIs(err, types.ErrInvalidMultiplier)
 }
 
@@ -59,9 +59,14 @@ func (suite *ClaimTests) TestCannotClaimAfterEndTime() {
 
 	subspace := &fakeParamSubspace{
 		params: types.Params{
-			ClaimMultipliers: types.Multipliers{
+			ClaimMultipliers: types.MultipliersPerDenom{
+				{
+					Denom: "hard",
+					Multipliers: types.Multipliers{
 						types.NewMultiplier(types.Small, 1, d("0.2")),
 					},
+				},
+			},
 			ClaimEnd: endTime,
 		},
 	}
@@ -76,6 +81,6 @@ func (suite *ClaimTests) TestCannotClaimAfterEndTime() {
 	}
 	suite.storeDelegatorClaim(claim)
 
-	err := suite.keeper.ClaimDelegatorReward(suite.ctx, claim.Owner, claim.Owner, types.Small, nil)
+	err := suite.keeper.ClaimDelegatorReward(suite.ctx, claim.Owner, claim.Owner, "hard", "small")
 	suite.ErrorIs(err, types.ErrClaimExpired)
 }

x/incentive/keeper/params.go

@@ -64,12 +64,14 @@ func (k Keeper) GetDelegatorRewardPeriods(ctx sdk.Context, denom string) (types.
 	return types.MultiRewardPeriod{}, false
 }
 
-// GetMultiplier returns the multiplier with the specified name if it's found in the params
-func (k Keeper) GetMultiplier(ctx sdk.Context, name types.MultiplierName) (types.Multiplier, bool) {
+// GetMultiplierByDenom fetches a multiplier from the params matching the denom and name.
+func (k Keeper) GetMultiplierByDenom(ctx sdk.Context, denom string, name types.MultiplierName) (types.Multiplier, bool) {
 	params := k.GetParams(ctx)
-	for _, m := range params.ClaimMultipliers {
-		if m.Name == name {
-			return m, true
+
+	for _, dm := range params.ClaimMultipliers {
+		if dm.Denom == denom {
+			m, found := dm.Multipliers.Get(name)
+			return m, found
 		}
 	}
 	return types.Multiplier{}, false

x/incentive/keeper/payout_test.go

@@ -502,7 +502,7 @@ func (suite *PayoutTestSuite) TestGetPeriodLength() {
 			},
 		},
 		{
-			name: "exactly half of month",
+			name: "exactly half of month, is pushed to start of month + lockup",
 			args: args{
 				blockTime:      time.Date(2020, 12, 15, 14, 0, 0, 0, time.UTC),
 				multiplier:     types.NewMultiplier(types.Medium, 6, sdk.MustNewDecFromStr("0.333333")),
@@ -525,6 +525,18 @@ func (suite *PayoutTestSuite) TestGetPeriodLength() {
 				contains:   "",
 			},
 		},
+		{
+			name: "just after start of month payout time, is pushed to mid month + lockup",
+			args: args{
+				blockTime:      time.Date(2020, 12, 1, 14, 0, 1, 0, time.UTC),
+				multiplier:     types.NewMultiplier(types.Medium, 1, sdk.MustNewDecFromStr("0.333333")),
+				expectedLength: time.Date(2021, 1, 15, 14, 0, 0, 0, time.UTC).Unix() - time.Date(2020, 12, 1, 14, 0, 1, 0, time.UTC).Unix(),
+			},
+			errArgs: errArgs{
+				expectPass: true,
+				contains:   "",
+			},
+		},
 	}
 	for _, tc := range testCases {
 		suite.Run(tc.name, func() {

x/incentive/keeper/rewards_supply_test.go

@@ -222,7 +222,6 @@ func (suite *SupplyRewardsTestSuite) TestAccumulateHardSupplyRewards() {
 				},
 			},
 		},
-		// TODO test accumulate when there is a reward period with 0 rewardsPerSecond
 	}
 	for _, tc := range testCases {
 		suite.Run(tc.name, func() {

x/incentive/testutil/builder.go

@@ -166,7 +166,7 @@ func (builder IncentiveGenesisBuilder) WithSimpleUSDXRewardPeriod(ctype string,
 	))
 }
 
-func (builder IncentiveGenesisBuilder) WithMultipliers(multipliers types.Multipliers) IncentiveGenesisBuilder {
+func (builder IncentiveGenesisBuilder) WithMultipliers(multipliers types.MultipliersPerDenom) IncentiveGenesisBuilder {
 	builder.Params.ClaimMultipliers = multipliers
 	return builder
 }

x/incentive/types/errors.go

@@ -18,7 +18,6 @@ var (
 	ErrZeroClaim                     = sdkerrors.Register(ModuleName, 9, "cannot claim - claim amount rounds to zero")
 	ErrClaimExpired                  = sdkerrors.Register(ModuleName, 10, "claim has expired")
 	ErrInvalidClaimType              = sdkerrors.Register(ModuleName, 11, "invalid claim type")
-	ErrInvalidClaimOwner             = sdkerrors.Register(ModuleName, 12, "invalid claim owner")
 	ErrDecreasingRewardFactor        = sdkerrors.Register(ModuleName, 13, "found new reward factor less than an old reward factor")
 	ErrInvalidClaimDenoms            = sdkerrors.Register(ModuleName, 14, "invalid claim denoms")
 )

x/incentive/types/genesis_test.go

@@ -45,8 +45,14 @@ func TestGenesisState_Validate(t *testing.T) {
 					DefaultMultiRewardPeriods,
 					DefaultMultiRewardPeriods,
 					DefaultMultiRewardPeriods,
-					Multipliers{
+					MultipliersPerDenom{
+						{
+							Denom: "ukava",
+							Multipliers: Multipliers{
 								NewMultiplier(Small, 1, sdk.MustNewDecFromStr("0.33")),
+								NewMultiplier(Large, 12, sdk.MustNewDecFromStr("1.00")),
+							},
+						},
 					},
 					time.Date(2025, 10, 15, 14, 0, 0, 0, time.UTC),
 				),

x/incentive/types/msg.go

@@ -111,15 +111,13 @@ func (msg MsgClaimUSDXMintingRewardVVesting) GetSigners() []sdk.AccAddress {
 // MsgClaimHardReward message type used to claim Hard liquidity provider rewards
 type MsgClaimHardReward struct {
 	Sender        sdk.AccAddress `json:"sender" yaml:"sender"`
-	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
-	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
+	DenomsToClaim Selections     `json:"denoms_to_claim" yaml:"denoms_to_claim"`
 }
 
 // NewMsgClaimHardReward returns a new MsgClaimHardReward.
-func NewMsgClaimHardReward(sender sdk.AccAddress, multiplierName string, denomsToClaim []string) MsgClaimHardReward {
+func NewMsgClaimHardReward(sender sdk.AccAddress, denomsToClaim ...Selection) MsgClaimHardReward {
 	return MsgClaimHardReward{
 		Sender:        sender,
-		MultiplierName: multiplierName,
 		DenomsToClaim: denomsToClaim,
 	}
 }
@@ -137,17 +135,9 @@ func (msg MsgClaimHardReward) ValidateBasic() error {
 	if msg.Sender.Empty() {
 		return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "sender address cannot be empty")
 	}
-	if err := MultiplierName(msg.MultiplierName).IsValid(); err != nil {
+	if err := msg.DenomsToClaim.Validate(); err != nil {
 		return err
 	}
-	for i, d := range msg.DenomsToClaim {
-		if i >= MaxDenomsToClaim {
-			return sdkerrors.Wrapf(ErrInvalidClaimDenoms, "cannot claim more than %d denoms", MaxDenomsToClaim)
-		}
-		if err := sdk.ValidateDenom(d); err != nil {
-			return sdkerrors.Wrap(ErrInvalidClaimDenoms, err.Error())
-		}
-	}
 	return nil
 }
 
@@ -166,16 +156,14 @@ func (msg MsgClaimHardReward) GetSigners() []sdk.AccAddress {
 type MsgClaimHardRewardVVesting struct {
 	Sender        sdk.AccAddress `json:"sender" yaml:"sender"`
 	Receiver      sdk.AccAddress `json:"receiver" yaml:"receiver"`
-	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
-	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
+	DenomsToClaim Selections     `json:"denoms_to_claim" yaml:"denoms_to_claim"`
 }
 
 // NewMsgClaimHardRewardVVesting returns a new MsgClaimHardRewardVVesting.
-func NewMsgClaimHardRewardVVesting(sender, receiver sdk.AccAddress, multiplierName string, denomsToClaim []string) MsgClaimHardRewardVVesting {
+func NewMsgClaimHardRewardVVesting(sender, receiver sdk.AccAddress, denomsToClaim ...Selection) MsgClaimHardRewardVVesting {
 	return MsgClaimHardRewardVVesting{
 		Sender:        sender,
 		Receiver:      receiver,
-		MultiplierName: multiplierName,
 		DenomsToClaim: denomsToClaim,
 	}
 }
@@ -196,17 +184,9 @@ func (msg MsgClaimHardRewardVVesting) ValidateBasic() error {
 	if msg.Receiver.Empty() {
 		return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "receiver address cannot be empty")
 	}
-	if err := MultiplierName(msg.MultiplierName).IsValid(); err != nil {
+	if err := msg.DenomsToClaim.Validate(); err != nil {
 		return err
 	}
-	for i, d := range msg.DenomsToClaim {
-		if i >= MaxDenomsToClaim {
-			return sdkerrors.Wrapf(ErrInvalidClaimDenoms, "cannot claim more than %d denoms", MaxDenomsToClaim)
-		}
-		if err := sdk.ValidateDenom(d); err != nil {
-			return sdkerrors.Wrap(ErrInvalidClaimDenoms, err.Error())
-		}
-	}
 	return nil
 }
 
@@ -224,15 +204,13 @@ func (msg MsgClaimHardRewardVVesting) GetSigners() []sdk.AccAddress {
 // MsgClaimDelegatorReward message type used to claim delegator rewards
 type MsgClaimDelegatorReward struct {
 	Sender        sdk.AccAddress `json:"sender" yaml:"sender"`
-	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
-	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
+	DenomsToClaim Selections     `json:"denoms_to_claim" yaml:"denoms_to_claim"`
 }
 
 // NewMsgClaimDelegatorReward returns a new MsgClaimDelegatorReward.
-func NewMsgClaimDelegatorReward(sender sdk.AccAddress, multiplierName string, denomsToClaim []string) MsgClaimDelegatorReward {
+func NewMsgClaimDelegatorReward(sender sdk.AccAddress, denomsToClaim ...Selection) MsgClaimDelegatorReward {
 	return MsgClaimDelegatorReward{
 		Sender:        sender,
-		MultiplierName: multiplierName,
 		DenomsToClaim: denomsToClaim,
 	}
 }
@@ -250,17 +228,9 @@ func (msg MsgClaimDelegatorReward) ValidateBasic() error {
 	if msg.Sender.Empty() {
 		return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "sender address cannot be empty")
 	}
-	if err := MultiplierName(msg.MultiplierName).IsValid(); err != nil {
+	if err := msg.DenomsToClaim.Validate(); err != nil {
 		return err
 	}
-	for i, d := range msg.DenomsToClaim {
-		if i >= MaxDenomsToClaim {
-			return sdkerrors.Wrapf(ErrInvalidClaimDenoms, "cannot claim more than %d denoms", MaxDenomsToClaim)
-		}
-		if err := sdk.ValidateDenom(d); err != nil {
-			return sdkerrors.Wrap(ErrInvalidClaimDenoms, err.Error())
-		}
-	}
 	return nil
 }
 
@@ -279,16 +249,14 @@ func (msg MsgClaimDelegatorReward) GetSigners() []sdk.AccAddress {
 type MsgClaimDelegatorRewardVVesting struct {
 	Sender        sdk.AccAddress `json:"sender" yaml:"sender"`
 	Receiver      sdk.AccAddress `json:"receiver" yaml:"receiver"`
-	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
-	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
+	DenomsToClaim Selections     `json:"denoms_to_claim" yaml:"denoms_to_claim"`
 }
 
 // MsgClaimDelegatorRewardVVesting returns a new MsgClaimDelegatorRewardVVesting.
-func NewMsgClaimDelegatorRewardVVesting(sender, receiver sdk.AccAddress, multiplierName string, denomsToClaim []string) MsgClaimDelegatorRewardVVesting {
+func NewMsgClaimDelegatorRewardVVesting(sender, receiver sdk.AccAddress, denomsToClaim ...Selection) MsgClaimDelegatorRewardVVesting {
 	return MsgClaimDelegatorRewardVVesting{
 		Sender:        sender,
 		Receiver:      receiver,
-		MultiplierName: multiplierName,
 		DenomsToClaim: denomsToClaim,
 	}
 }
@@ -309,17 +277,9 @@ func (msg MsgClaimDelegatorRewardVVesting) ValidateBasic() error {
 	if msg.Receiver.Empty() {
 		return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "receiver address cannot be empty")
 	}
-	if err := MultiplierName(msg.MultiplierName).IsValid(); err != nil {
+	if err := msg.DenomsToClaim.Validate(); err != nil {
 		return err
 	}
-	for i, d := range msg.DenomsToClaim {
-		if i >= MaxDenomsToClaim {
-			return sdkerrors.Wrapf(ErrInvalidClaimDenoms, "cannot claim more than %d denoms", MaxDenomsToClaim)
-		}
-		if err := sdk.ValidateDenom(d); err != nil {
-			return sdkerrors.Wrap(ErrInvalidClaimDenoms, err.Error())
-		}
-	}
 	return nil
 }
 
@@ -338,14 +298,13 @@ func (msg MsgClaimDelegatorRewardVVesting) GetSigners() []sdk.AccAddress {
 type MsgClaimSwapReward struct {
 	Sender         sdk.AccAddress `json:"sender" yaml:"sender"`
 	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
-	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
+	DenomsToClaim  Selections     `json:"denoms_to_claim" yaml:"denoms_to_claim"`
 }
 
 // NewMsgClaimSwapReward returns a new MsgClaimSwapReward.
-func NewMsgClaimSwapReward(sender sdk.AccAddress, multiplierName string, denomsToClaim []string) MsgClaimSwapReward {
+func NewMsgClaimSwapReward(sender sdk.AccAddress, denomsToClaim ...Selection) MsgClaimSwapReward {
 	return MsgClaimSwapReward{
 		Sender:        sender,
-		MultiplierName: multiplierName,
 		DenomsToClaim: denomsToClaim,
 	}
 }
@@ -363,17 +322,9 @@ func (msg MsgClaimSwapReward) ValidateBasic() error {
 	if msg.Sender.Empty() {
 		return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "sender address cannot be empty")
 	}
-	if err := MultiplierName(msg.MultiplierName).IsValid(); err != nil {
+	if err := msg.DenomsToClaim.Validate(); err != nil {
 		return err
 	}
-	for i, d := range msg.DenomsToClaim {
-		if i >= MaxDenomsToClaim {
-			return sdkerrors.Wrapf(ErrInvalidClaimDenoms, "cannot claim more than %d denoms", MaxDenomsToClaim)
-		}
-		if err := sdk.ValidateDenom(d); err != nil {
-			return sdkerrors.Wrap(ErrInvalidClaimDenoms, err.Error())
-		}
-	}
 	return nil
 }
 
@@ -392,16 +343,14 @@ func (msg MsgClaimSwapReward) GetSigners() []sdk.AccAddress {
 type MsgClaimSwapRewardVVesting struct {
 	Sender        sdk.AccAddress `json:"sender" yaml:"sender"`
 	Receiver      sdk.AccAddress `json:"receiver" yaml:"receiver"`
-	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
-	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
+	DenomsToClaim Selections     `json:"denoms_to_claim" yaml:"denoms_to_claim"`
 }
 
 // MsgClaimSwapRewardVVesting returns a new MsgClaimSwapRewardVVesting.
-func NewMsgClaimSwapRewardVVesting(sender, receiver sdk.AccAddress, multiplierName string, denomsToClaim []string) MsgClaimSwapRewardVVesting {
+func NewMsgClaimSwapRewardVVesting(sender, receiver sdk.AccAddress, denomsToClaim ...Selection) MsgClaimSwapRewardVVesting {
 	return MsgClaimSwapRewardVVesting{
 		Sender:        sender,
 		Receiver:      receiver,
-		MultiplierName: multiplierName,
 		DenomsToClaim: denomsToClaim,
 	}
 }
@@ -422,17 +371,9 @@ func (msg MsgClaimSwapRewardVVesting) ValidateBasic() error {
 	if msg.Receiver.Empty() {
 		return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "receiver address cannot be empty")
 	}
-	if err := MultiplierName(msg.MultiplierName).IsValid(); err != nil {
+	if err := msg.DenomsToClaim.Validate(); err != nil {
 		return err
 	}
-	for i, d := range msg.DenomsToClaim {
-		if i >= MaxDenomsToClaim {
-			return sdkerrors.Wrapf(ErrInvalidClaimDenoms, "cannot claim more than %d denoms", MaxDenomsToClaim)
-		}
-		if err := sdk.ValidateDenom(d); err != nil {
-			return sdkerrors.Wrap(ErrInvalidClaimDenoms, err.Error())
-		}
-	}
 	return nil
 }
 

x/incentive/types/msg_test.go

@@ -23,8 +23,7 @@ func TestMsgClaimVVesting_Validate(t *testing.T) {
 	type msgArgs struct {
 		sender        sdk.AccAddress
 		receiver      sdk.AccAddress
-		multiplierName string
-		denomsToClaim  []string
+		denomsToClaim types.Selections
 	}
 	tests := []struct {
 		name    string
@@ -36,7 +35,12 @@ func TestMsgClaimVVesting_Validate(t *testing.T) {
 			msgArgs: msgArgs{
 				sender:   validAddress,
 				receiver: validAddress,
-				multiplierName: "large",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "large",
+					},
+				},
 			},
 			expect: expectedErr{
 				pass: true,
@@ -47,7 +51,12 @@ func TestMsgClaimVVesting_Validate(t *testing.T) {
 			msgArgs: msgArgs{
 				sender:   validAddress,
 				receiver: validAddress,
-				multiplierName: "medium",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "medium",
+					},
+				},
 			},
 			expect: expectedErr{
 				pass: true,
@@ -58,52 +67,28 @@ func TestMsgClaimVVesting_Validate(t *testing.T) {
 			msgArgs: msgArgs{
 				sender:   validAddress,
 				receiver: validAddress,
-				multiplierName: "small",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "small",
+					},
+				},
 			},
 			expect: expectedErr{
 				pass: true,
 			},
 		},
-		{
-			name: "empty denoms to claim is valid",
-			msgArgs: msgArgs{
-				sender:         validAddress,
-				receiver:       validAddress,
-				multiplierName: "small",
-				denomsToClaim:  []string{},
-			},
-			expect: expectedErr{
-				pass: true,
-			},
-		},
-		{
-			name: "invalid sender",
-			msgArgs: msgArgs{
-				sender:         sdk.AccAddress{},
-				receiver:       validAddress,
-				multiplierName: "medium",
-			},
-			expect: expectedErr{
-				wraps: sdkerrors.ErrInvalidAddress,
-			},
-		},
-		{
-			name: "invalid receiver",
-			msgArgs: msgArgs{
-				sender:         validAddress,
-				receiver:       sdk.AccAddress{},
-				multiplierName: "medium",
-			},
-			expect: expectedErr{
-				wraps: sdkerrors.ErrInvalidAddress,
-			},
-		},
 		{
 			name: "invalid multiplier",
 			msgArgs: msgArgs{
 				sender:   validAddress,
 				receiver: validAddress,
-				multiplierName: "huge",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "huge",
+					},
+				},
 			},
 			expect: expectedErr{
 				wraps: types.ErrInvalidMultiplier,
@@ -114,19 +99,83 @@ func TestMsgClaimVVesting_Validate(t *testing.T) {
 			msgArgs: msgArgs{
 				sender:   validAddress,
 				receiver: validAddress,
-				multiplierName: "Large",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "Large",
+					},
+				},
 			},
 			expect: expectedErr{
 				wraps: types.ErrInvalidMultiplier,
 			},
 		},
+		{
+			name: "empty denoms to claim is not valid",
+			msgArgs: msgArgs{
+				sender:        validAddress,
+				receiver:      validAddress,
+				denomsToClaim: types.Selections{},
+			},
+			expect: expectedErr{
+				wraps: types.ErrInvalidClaimDenoms,
+			},
+		},
+		{
+			name: "nil denoms to claim is not valid",
+			msgArgs: msgArgs{
+				sender:        validAddress,
+				receiver:      validAddress,
+				denomsToClaim: nil,
+			},
+			expect: expectedErr{
+				wraps: types.ErrInvalidClaimDenoms,
+			},
+		},
+		{
+			name: "invalid sender",
+			msgArgs: msgArgs{
+				sender:   sdk.AccAddress{},
+				receiver: validAddress,
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "medium",
+					},
+				},
+			},
+			expect: expectedErr{
+				wraps: sdkerrors.ErrInvalidAddress,
+			},
+		},
+		{
+			name: "invalid receiver",
+			msgArgs: msgArgs{
+				sender:   validAddress,
+				receiver: sdk.AccAddress{},
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "medium",
+					},
+				},
+			},
+			expect: expectedErr{
+				wraps: sdkerrors.ErrInvalidAddress,
+			},
+		},
+
 		{
 			name: "invalid claim denom",
 			msgArgs: msgArgs{
 				sender:   validAddress,
 				receiver: validAddress,
-				multiplierName: "small",
-				denomsToClaim:  []string{"a denom string that is invalid because it is much too long"},
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "a denom string that is invalid because it is much too long",
+						MultiplierName: "medium",
+					},
+				},
 			},
 			expect: expectedErr{
 				wraps: types.ErrInvalidClaimDenoms,
@@ -137,8 +186,27 @@ func TestMsgClaimVVesting_Validate(t *testing.T) {
 			msgArgs: msgArgs{
 				sender:        validAddress,
 				receiver:      validAddress,
-				multiplierName: "small",
-				denomsToClaim:  tooManyClaimDenoms(),
+				denomsToClaim: tooManySelections(),
+			},
+			expect: expectedErr{
+				wraps: types.ErrInvalidClaimDenoms,
+			},
+		},
+		{
+			name: "duplicated claim denoms",
+			msgArgs: msgArgs{
+				sender:   validAddress,
+				receiver: validAddress,
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "medium",
+					},
+					{
+						Denom:          "hard",
+						MultiplierName: "large",
+					},
+				},
 			},
 			expect: expectedErr{
 				wraps: types.ErrInvalidClaimDenoms,
@@ -149,13 +217,13 @@ func TestMsgClaimVVesting_Validate(t *testing.T) {
 	for _, tc := range tests {
 		msgs := []sdk.Msg{
 			types.NewMsgClaimHardRewardVVesting(
-				tc.msgArgs.sender, tc.msgArgs.receiver, tc.msgArgs.multiplierName, tc.msgArgs.denomsToClaim,
+				tc.msgArgs.sender, tc.msgArgs.receiver, tc.msgArgs.denomsToClaim...,
 			),
 			types.NewMsgClaimDelegatorRewardVVesting(
-				tc.msgArgs.sender, tc.msgArgs.receiver, tc.msgArgs.multiplierName, tc.msgArgs.denomsToClaim,
+				tc.msgArgs.sender, tc.msgArgs.receiver, tc.msgArgs.denomsToClaim...,
 			),
 			types.NewMsgClaimSwapRewardVVesting(
-				tc.msgArgs.sender, tc.msgArgs.receiver, tc.msgArgs.multiplierName, tc.msgArgs.denomsToClaim,
+				tc.msgArgs.sender, tc.msgArgs.receiver, tc.msgArgs.denomsToClaim...,
 			),
 		}
 		for _, msg := range msgs {
@@ -181,19 +249,24 @@ func TestMsgClaim_Validate(t *testing.T) {
 	}
 	type msgArgs struct {
 		sender        sdk.AccAddress
-		multiplierName string
-		denomsToClaim  []string
+		denomsToClaim types.Selections
 	}
 	tests := []struct {
 		name    string
 		msgArgs msgArgs
 		expect  expectedErr
 	}{
+
 		{
 			name: "large multiplier is valid",
 			msgArgs: msgArgs{
 				sender: validAddress,
-				multiplierName: "large",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "large",
+					},
+				},
 			},
 			expect: expectedErr{
 				pass: true,
@@ -203,7 +276,12 @@ func TestMsgClaim_Validate(t *testing.T) {
 			name: "medium multiplier is valid",
 			msgArgs: msgArgs{
 				sender: validAddress,
-				multiplierName: "medium",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "medium",
+					},
+				},
 			},
 			expect: expectedErr{
 				pass: true,
@@ -213,38 +291,27 @@ func TestMsgClaim_Validate(t *testing.T) {
 			name: "small multiplier is valid",
 			msgArgs: msgArgs{
 				sender: validAddress,
-				multiplierName: "small",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "small",
+					},
+				},
 			},
 			expect: expectedErr{
 				pass: true,
 			},
 		},
-		{
-			name: "empty denoms to claim is valid",
-			msgArgs: msgArgs{
-				sender:         validAddress,
-				multiplierName: "small",
-				denomsToClaim:  []string{},
-			},
-			expect: expectedErr{
-				pass: true,
-			},
-		},
-		{
-			name: "invalid sender",
-			msgArgs: msgArgs{
-				sender:         sdk.AccAddress{},
-				multiplierName: "medium",
-			},
-			expect: expectedErr{
-				wraps: sdkerrors.ErrInvalidAddress,
-			},
-		},
 		{
 			name: "invalid multiplier",
 			msgArgs: msgArgs{
 				sender: validAddress,
-				multiplierName: "huge",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "huge",
+					},
+				},
 			},
 			expect: expectedErr{
 				wraps: types.ErrInvalidMultiplier,
@@ -254,18 +321,62 @@ func TestMsgClaim_Validate(t *testing.T) {
 			name: "multiplier with capitalization is invalid",
 			msgArgs: msgArgs{
 				sender: validAddress,
-				multiplierName: "Large",
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "Large",
+					},
+				},
 			},
 			expect: expectedErr{
 				wraps: types.ErrInvalidMultiplier,
 			},
 		},
+		{
+			name: "empty denoms to claim is not valid",
+			msgArgs: msgArgs{
+				sender:        validAddress,
+				denomsToClaim: types.Selections{},
+			},
+			expect: expectedErr{
+				wraps: types.ErrInvalidClaimDenoms,
+			},
+		},
+		{
+			name: "nil denoms to claim is not valid",
+			msgArgs: msgArgs{
+				sender:        validAddress,
+				denomsToClaim: nil,
+			},
+			expect: expectedErr{
+				wraps: types.ErrInvalidClaimDenoms,
+			},
+		},
+		{
+			name: "invalid sender",
+			msgArgs: msgArgs{
+				sender: sdk.AccAddress{},
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "medium",
+					},
+				},
+			},
+			expect: expectedErr{
+				wraps: sdkerrors.ErrInvalidAddress,
+			},
+		},
 		{
 			name: "invalid claim denom",
 			msgArgs: msgArgs{
 				sender: validAddress,
-				multiplierName: "small",
-				denomsToClaim:  []string{"a denom string that is invalid because it is much too long"},
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "a denom string that is invalid because it is much too long",
+						MultiplierName: "medium",
+					},
+				},
 			},
 			expect: expectedErr{
 				wraps: types.ErrInvalidClaimDenoms,
@@ -275,8 +386,26 @@ func TestMsgClaim_Validate(t *testing.T) {
 			name: "too many claim denoms",
 			msgArgs: msgArgs{
 				sender:        validAddress,
-				multiplierName: "small",
-				denomsToClaim:  tooManyClaimDenoms(),
+				denomsToClaim: tooManySelections(),
+			},
+			expect: expectedErr{
+				wraps: types.ErrInvalidClaimDenoms,
+			},
+		},
+		{
+			name: "duplicated claim denoms",
+			msgArgs: msgArgs{
+				sender: validAddress,
+				denomsToClaim: types.Selections{
+					{
+						Denom:          "hard",
+						MultiplierName: "medium",
+					},
+					{
+						Denom:          "hard",
+						MultiplierName: "large",
+					},
+				},
 			},
 			expect: expectedErr{
 				wraps: types.ErrInvalidClaimDenoms,
@@ -286,15 +415,9 @@ func TestMsgClaim_Validate(t *testing.T) {
 
 	for _, tc := range tests {
 		msgs := []sdk.Msg{
-			types.NewMsgClaimHardReward(
-				tc.msgArgs.sender, tc.msgArgs.multiplierName, tc.msgArgs.denomsToClaim,
-			),
-			types.NewMsgClaimDelegatorReward(
-				tc.msgArgs.sender, tc.msgArgs.multiplierName, tc.msgArgs.denomsToClaim,
-			),
-			types.NewMsgClaimSwapReward(
-				tc.msgArgs.sender, tc.msgArgs.multiplierName, tc.msgArgs.denomsToClaim,
-			),
+			types.NewMsgClaimHardReward(tc.msgArgs.sender, tc.msgArgs.denomsToClaim...),
+			types.NewMsgClaimDelegatorReward(tc.msgArgs.sender, tc.msgArgs.denomsToClaim...),
+			types.NewMsgClaimSwapReward(tc.msgArgs.sender, tc.msgArgs.denomsToClaim...),
 		}
 		for _, msg := range msgs {
 			t.Run(msg.Type()+" "+tc.name, func(t *testing.T) {
@@ -520,3 +643,14 @@ func tooManyClaimDenoms() []string {
 	}
 	return claimDenoms
 }
+
+func tooManySelections() types.Selections {
+	selections := make(types.Selections, types.MaxDenomsToClaim+1)
+	for i := range selections {
+		selections[i] = types.Selection{
+			Denom:          fmt.Sprintf("denom%d", i),
+			MultiplierName: "large",
+		}
+	}
+	return selections
+}

x/incentive/types/multipliers.go

@@ -0,0 +1,201 @@
+package types
+
+import (
+	"fmt"
+	"sort"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
+)
+
+// Available reward multipliers names
+const (
+	Small  MultiplierName = "small"
+	Medium MultiplierName = "medium"
+	Large  MultiplierName = "large"
+)
+
+// MultiplierName is the user facing ID for a multiplier. There is a restricted set of possible values.
+type MultiplierName string
+
+// IsValid checks if the input is one of the expected strings
+func (mn MultiplierName) IsValid() error {
+	switch mn {
+	case Small, Medium, Large:
+		return nil
+	}
+	return sdkerrors.Wrapf(ErrInvalidMultiplier, "invalid multiplier name: %s", mn)
+}
+
+// ParseMultiplierName converts a string into a valid MultiplierName value.
+func ParseMultiplierName(unparsedName string) (MultiplierName, error) {
+	name := MultiplierName(unparsedName)
+	if err := name.IsValid(); err != nil {
+		return "", err
+	}
+	return name, nil
+}
+
+// Multiplier amount the claim rewards get increased by, along with how long the claim rewards are locked
+type Multiplier struct {
+	Name         MultiplierName `json:"name" yaml:"name"`
+	MonthsLockup int64          `json:"months_lockup" yaml:"months_lockup"`
+	Factor       sdk.Dec        `json:"factor" yaml:"factor"`
+}
+
+// NewMultiplier returns a new Multiplier
+func NewMultiplier(name MultiplierName, lockup int64, factor sdk.Dec) Multiplier {
+	return Multiplier{
+		Name:         name,
+		MonthsLockup: lockup,
+		Factor:       factor,
+	}
+}
+
+// Validate multiplier param
+func (m Multiplier) Validate() error {
+	if err := m.Name.IsValid(); err != nil {
+		return err
+	}
+	if m.MonthsLockup < 0 {
+		return fmt.Errorf("expected non-negative lockup, got %d", m.MonthsLockup)
+	}
+	if m.Factor.IsNegative() {
+		return fmt.Errorf("expected non-negative factor, got %s", m.Factor.String())
+	}
+
+	return nil
+}
+
+// String implements fmt.Stringer
+func (m Multiplier) String() string {
+	return fmt.Sprintf(`Claim Multiplier:
+	Name: %s
+	Months Lockup %d
+	Factor %s
+	`, m.Name, m.MonthsLockup, m.Factor)
+}
+
+// Multipliers is a slice of Multiplier
+type Multipliers []Multiplier
+
+// Validate validates each multiplier
+func (ms Multipliers) Validate() error {
+	for _, m := range ms {
+		if err := m.Validate(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// Get returns a multiplier with a matching name
+func (ms Multipliers) Get(name MultiplierName) (Multiplier, bool) {
+	for _, m := range ms {
+		if m.Name == name {
+			return m, true
+		}
+	}
+	return Multiplier{}, false
+}
+
+// String implements fmt.Stringer
+func (ms Multipliers) String() string {
+	out := "Claim Multipliers\n"
+	for _, s := range ms {
+		out += fmt.Sprintf("%s\n", s)
+	}
+	return out
+}
+
+// MultipliersPerDenom is a map of denoms to a set of multipliers
+type MultipliersPerDenom []struct {
+	Denom       string      `json:"denom" yaml:"denom"`
+	Multipliers Multipliers `json:"multipliers" yaml:"multipliers"`
+}
+
+// Validate checks each denom and multipliers for invalid values.
+func (mpd MultipliersPerDenom) Validate() error {
+	foundDenoms := map[string]bool{}
+
+	for _, item := range mpd {
+		if err := sdk.ValidateDenom(item.Denom); err != nil {
+			return err
+		}
+		if err := item.Multipliers.Validate(); err != nil {
+			return err
+		}
+
+		if foundDenoms[item.Denom] {
+			return fmt.Errorf("")
+		}
+		foundDenoms[item.Denom] = true
+	}
+	return nil
+}
+
+// Selection a pair of denom and multiplier name. It holds the choice of multiplier a user makes when they claim a denom.
+type Selection struct {
+	Denom          string `json:"denom" yaml:"denom"`
+	MultiplierName string `json:"multiplier_name" yaml:"multiplier_name"`
+}
+
+// NewSelection returns a new Selection
+func NewSelection(denom, multiplierName string) Selection {
+	return Selection{
+		Denom:          denom,
+		MultiplierName: multiplierName,
+	}
+}
+
+// Validate performs basic validation checks
+func (s Selection) Validate() error {
+	if err := sdk.ValidateDenom(s.Denom); err != nil {
+		return sdkerrors.Wrap(ErrInvalidClaimDenoms, err.Error())
+	}
+	if _, err := ParseMultiplierName(s.MultiplierName); err != nil {
+		return err
+	}
+	return nil
+}
+
+// Selections are a list of denom - multiplier pairs that specify what rewards to claim and with what lockups.
+type Selections []Selection
+
+// NewSelectionsFromMap creates a new set of selections from a string to string map.
+// It sorts the output before returning.
+func NewSelectionsFromMap(selectionMap map[string]string) Selections {
+	var selections Selections
+	for k, v := range selectionMap {
+		selections = append(selections, NewSelection(k, v))
+	}
+	// deterministically sort the slice to protect against the random range order causing consensus failures
+	sort.Slice(selections, func(i, j int) bool {
+		if selections[i].Denom != selections[j].Denom {
+			return selections[i].Denom < selections[j].Denom
+		}
+		return selections[i].MultiplierName < selections[j].MultiplierName
+	})
+	return selections
+}
+
+// Valdate performs basic validaton checks
+func (ss Selections) Validate() error {
+	if len(ss) == 0 {
+		return sdkerrors.Wrap(ErrInvalidClaimDenoms, "cannot claim 0 denoms")
+	}
+	if len(ss) >= MaxDenomsToClaim {
+		return sdkerrors.Wrapf(ErrInvalidClaimDenoms, "cannot claim more than %d denoms", MaxDenomsToClaim)
+	}
+	foundDenoms := map[string]bool{}
+	for _, s := range ss {
+		if err := s.Validate(); err != nil {
+			return err
+		}
+		if foundDenoms[s.Denom] {
+			return sdkerrors.Wrapf(ErrInvalidClaimDenoms, "cannot claim denom '%s' more than once", s.Denom)
+		}
+		foundDenoms[s.Denom] = true
+	}
+	return nil
+}

x/incentive/types/params.go

@@ -7,20 +7,12 @@ import (
 	"time"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/x/params"
 	tmtime "github.com/tendermint/tendermint/types/time"
 
 	kavadistTypes "github.com/kava-labs/kava/x/kavadist/types"
 )
 
-// Valid reward multipliers
-const (
-	Small  MultiplierName = "small"
-	Medium MultiplierName = "medium"
-	Large  MultiplierName = "large"
-)
-
 // Parameter keys and default values
 var (
 	KeyUSDXMintingRewardPeriods = []byte("USDXMintingRewardPeriods")
@@ -34,7 +26,7 @@ var (
 	DefaultActive             = false
 	DefaultRewardPeriods      = RewardPeriods{}
 	DefaultMultiRewardPeriods = MultiRewardPeriods{}
-	DefaultMultipliers        = Multipliers{}
+	DefaultMultipliers        = MultipliersPerDenom{}
 	DefaultClaimEnd           = tmtime.Canonical(time.Unix(1, 0))
 
 	BondDenom              = "ukava"
@@ -50,13 +42,13 @@ type Params struct {
 	HardBorrowRewardPeriods  MultiRewardPeriods  `json:"hard_borrow_reward_periods" yaml:"hard_borrow_reward_periods"`
 	DelegatorRewardPeriods   MultiRewardPeriods  `json:"delegator_reward_periods" yaml:"delegator_reward_periods"`
 	SwapRewardPeriods        MultiRewardPeriods  `json:"swap_reward_periods" yaml:"swap_reward_periods"`
-	ClaimMultipliers         Multipliers        `json:"claim_multipliers" yaml:"claim_multipliers"`
+	ClaimMultipliers         MultipliersPerDenom `json:"claim_multipliers" yaml:"claim_multipliers"`
 	ClaimEnd                 time.Time           `json:"claim_end" yaml:"claim_end"`
 }
 
 // NewParams returns a new params object
 func NewParams(usdxMinting RewardPeriods, hardSupply, hardBorrow, delegator, swap MultiRewardPeriods,
-	multipliers Multipliers, claimEnd time.Time) Params {
+	multipliers MultipliersPerDenom, claimEnd time.Time) Params {
 	return Params{
 		USDXMintingRewardPeriods: usdxMinting,
 		HardSupplyRewardPeriods:  hardSupply,
@@ -89,7 +81,7 @@ func (p Params) String() string {
 	Hard Borrow Reward Periods: %s
 	Delegator Reward Periods: %s
 	Swap Reward Periods: %s
-	Claim Multipliers :%s
+	Claim Multipliers: %s
 	Claim End Time: %s
 	`, p.USDXMintingRewardPeriods, p.HardSupplyRewardPeriods, p.HardBorrowRewardPeriods,
 		p.DelegatorRewardPeriods, p.SwapRewardPeriods, p.ClaimMultipliers, p.ClaimEnd)
@@ -108,15 +100,15 @@ func (p *Params) ParamSetPairs() params.ParamSetPairs {
 		params.NewParamSetPair(KeyHardBorrowRewardPeriods, &p.HardBorrowRewardPeriods, validateMultiRewardPeriodsParam),
 		params.NewParamSetPair(KeyDelegatorRewardPeriods, &p.DelegatorRewardPeriods, validateMultiRewardPeriodsParam),
 		params.NewParamSetPair(KeySwapRewardPeriods, &p.SwapRewardPeriods, validateMultiRewardPeriodsParam),
+		params.NewParamSetPair(KeyMultipliers, &p.ClaimMultipliers, validateMultipliersPerDenomParam),
 		params.NewParamSetPair(KeyClaimEnd, &p.ClaimEnd, validateClaimEndParam),
-		params.NewParamSetPair(KeyMultipliers, &p.ClaimMultipliers, validateMultipliersParam),
 	}
 }
 
 // Validate checks that the parameters have valid values.
 func (p Params) Validate() error {
 
-	if err := validateMultipliersParam(p.ClaimMultipliers); err != nil {
+	if err := validateMultipliersPerDenomParam(p.ClaimMultipliers); err != nil {
 		return err
 	}
 
@@ -169,6 +161,14 @@ func validateMultipliersParam(i interface{}) error {
 	return multipliers.Validate()
 }
 
+func validateMultipliersPerDenomParam(i interface{}) error {
+	multipliers, ok := i.(MultipliersPerDenom)
+	if !ok {
+		return fmt.Errorf("invalid parameter type: %T", i)
+	}
+	return multipliers.Validate()
+}
+
 func validateClaimEndParam(i interface{}) error {
 	endTime, ok := i.(time.Time)
 	if !ok {
@@ -360,77 +360,3 @@ func (mrps MultiRewardPeriods) Validate() error {
 
 	return nil
 }
-
-// Multiplier amount the claim rewards get increased by, along with how long the claim rewards are locked
-type Multiplier struct {
-	Name         MultiplierName `json:"name" yaml:"name"`
-	MonthsLockup int64          `json:"months_lockup" yaml:"months_lockup"`
-	Factor       sdk.Dec        `json:"factor" yaml:"factor"`
-}
-
-// NewMultiplier returns a new Multiplier
-func NewMultiplier(name MultiplierName, lockup int64, factor sdk.Dec) Multiplier {
-	return Multiplier{
-		Name:         name,
-		MonthsLockup: lockup,
-		Factor:       factor,
-	}
-}
-
-// Validate multiplier param
-func (m Multiplier) Validate() error {
-	if err := m.Name.IsValid(); err != nil {
-		return err
-	}
-	if m.MonthsLockup < 0 {
-		return fmt.Errorf("expected non-negative lockup, got %d", m.MonthsLockup)
-	}
-	if m.Factor.IsNegative() {
-		return fmt.Errorf("expected non-negative factor, got %s", m.Factor.String())
-	}
-
-	return nil
-}
-
-// String implements fmt.Stringer
-func (m Multiplier) String() string {
-	return fmt.Sprintf(`Claim Multiplier:
-	Name: %s
-	Months Lockup %d
-	Factor %s
-	`, m.Name, m.MonthsLockup, m.Factor)
-}
-
-// Multipliers slice of Multiplier
-type Multipliers []Multiplier
-
-// Validate validates each multiplier
-func (ms Multipliers) Validate() error {
-	for _, m := range ms {
-		if err := m.Validate(); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// String implements fmt.Stringer
-func (ms Multipliers) String() string {
-	out := "Claim Multipliers\n"
-	for _, s := range ms {
-		out += fmt.Sprintf("%s\n", s)
-	}
-	return out
-}
-
-// MultiplierName name for valid multiplier
-type MultiplierName string
-
-// IsValid checks if the input is one of the expected strings
-func (mn MultiplierName) IsValid() error {
-	switch mn {
-	case Small, Medium, Large:
-		return nil
-	}
-	return sdkerrors.Wrapf(ErrInvalidMultiplier, "invalid multiplier name: %s", mn)
-}

x/incentive/types/params_test.go

@@ -77,18 +77,26 @@ func (suite *ParamTestSuite) TestParamValidation() {
 						time.Date(2024, 10, 15, 14, 0, 0, 0, time.UTC),
 						sdk.NewCoin(types.USDXMintingRewardDenom, sdk.NewInt(122354)),
 					)},
-				ClaimMultipliers: types.Multipliers{
-					types.NewMultiplier(
-						types.Small, 1, sdk.MustNewDecFromStr("0.25"),
-					),
-					types.NewMultiplier(
-						types.Large, 1, sdk.MustNewDecFromStr("1.0"),
-					),
-				},
 				HardSupplyRewardPeriods: types.DefaultMultiRewardPeriods,
 				HardBorrowRewardPeriods: types.DefaultMultiRewardPeriods,
 				DelegatorRewardPeriods:  types.DefaultMultiRewardPeriods,
 				SwapRewardPeriods:       types.DefaultMultiRewardPeriods,
+				ClaimMultipliers: types.MultipliersPerDenom{
+					{
+						Denom: "hard",
+						Multipliers: types.Multipliers{
+							types.NewMultiplier(types.Small, 1, sdk.MustNewDecFromStr("0.25")),
+							types.NewMultiplier(types.Large, 12, sdk.MustNewDecFromStr("1.0")),
+						},
+					},
+					{
+						Denom: "ukava",
+						Multipliers: types.Multipliers{
+							types.NewMultiplier(types.Small, 1, sdk.MustNewDecFromStr("0.2")),
+							types.NewMultiplier(types.Large, 12, sdk.MustNewDecFromStr("1.0")),
+						},
+					},
+				},
 				ClaimEnd: time.Date(2025, 10, 15, 14, 0, 0, 0, time.UTC),
 			},
 			errArgs{

x/incentive/types/sdk.go

@@ -18,29 +18,3 @@ func GetTotalVestingPeriodLength(periods vesting.Periods) int64 {
 	}
 	return length
 }
-
-// MultiplyCoins multiplies each value in a set of coins by a single decimal value, rounding the result.
-func MultiplyCoins(coins sdk.Coins, multiple sdk.Dec) sdk.Coins {
-	var result sdk.Coins
-	for _, coin := range coins {
-		result = result.Add(
-			sdk.NewCoin(coin.Denom, coin.Amount.ToDec().Mul(multiple).RoundInt()),
-		)
-	}
-	return result
-}
-
-// FilterCoins returns a subset of the coins by denom. Specifying no denoms will return the original coins.
-func FilterCoins(coins sdk.Coins, denoms []string) sdk.Coins {
-
-	if len(denoms) == 0 {
-		// with no filter, return all the coins
-		return coins
-	}
-	// otherwise select denoms in filter
-	var filteredCoins sdk.Coins
-	for _, denom := range denoms {
-		filteredCoins = filteredCoins.Add(sdk.NewCoin(denom, coins.AmountOf(denom)))
-	}
-	return filteredCoins
-}

x/incentive/types/sdk_test.go

@@ -5,7 +5,6 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/auth/vesting"
 
 	"github.com/kava-labs/kava/x/incentive/types"
@@ -43,128 +42,3 @@ func TestGetTotalVestingPeriodLength(t *testing.T) {
 		})
 	}
 }
-
-func TestMultiplyCoins(t *testing.T) {
-	testCases := []struct {
-		name     string
-		coins    sdk.Coins
-		multiple sdk.Dec
-		expected sdk.Coins
-	}{
-		{
-			name: "decimals are rounded to nearest even, up",
-			coins: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 1e3),
-			),
-			multiple: sdk.MustNewDecFromStr("3.1415"),
-			expected: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 3142),
-			),
-		},
-		{
-			name: "decimals are rounded to nearest even, down",
-			coins: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 1e7),
-			),
-			multiple: sdk.MustNewDecFromStr("3.14159265"),
-			expected: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 31415926),
-			),
-		},
-		{
-			name: "multiple coin amounts are multiplied",
-			coins: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 1),
-				sdk.NewInt64Coin("ukava", 1e18),
-			),
-			multiple: sdk.MustNewDecFromStr("2.000000000000000002"),
-			expected: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 2),
-				sdk.NewInt64Coin("ukava", 2_000_000_000_000_000_002),
-			),
-		},
-		{
-			name:     "empty coins return nil",
-			coins:    sdk.Coins{},
-			multiple: sdk.MustNewDecFromStr("2.5"),
-			expected: nil,
-		},
-		{
-			name:     "nil coins return nil",
-			coins:    nil,
-			multiple: sdk.MustNewDecFromStr("2.5"),
-			expected: nil,
-		},
-	}
-
-	for _, tc := range testCases {
-		t.Run(tc.name, func(t *testing.T) {
-			require.Equal(t,
-				tc.expected,
-				types.MultiplyCoins(tc.coins, tc.multiple),
-			)
-		})
-	}
-}
-
-func TestFilterCoins(t *testing.T) {
-	testCases := []struct {
-		name     string
-		coins    sdk.Coins
-		denoms   []string
-		expected sdk.Coins
-	}{
-		{
-			name: "non-empty filter selects subset of coins",
-			coins: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 1e3),
-				sdk.NewInt64Coin("ukava", 2e3),
-				sdk.NewInt64Coin("btc", 3e3),
-			),
-			denoms: []string{"hard", "btc"},
-			expected: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 1e3),
-				sdk.NewInt64Coin("btc", 3e3),
-			),
-		},
-		{
-			name:     "when coins are nil a non-empty filter returns nil coins",
-			coins:    nil,
-			denoms:   []string{"hard", "btc"},
-			expected: nil,
-		},
-		{
-			name: "nil filter returns original coins",
-			coins: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 1e3),
-				sdk.NewInt64Coin("ukava", 2e3),
-			),
-			denoms: nil,
-			expected: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 1e3),
-				sdk.NewInt64Coin("ukava", 2e3),
-			),
-		},
-		{
-			name: "empty filter returns original coins",
-			coins: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 1e3),
-				sdk.NewInt64Coin("ukava", 2e3),
-			),
-			denoms: []string{},
-			expected: sdk.NewCoins(
-				sdk.NewInt64Coin("hard", 1e3),
-				sdk.NewInt64Coin("ukava", 2e3),
-			),
-		},
-	}
-
-	for _, tc := range testCases {
-		t.Run(tc.name, func(t *testing.T) {
-			require.Equal(t,
-				tc.expected,
-				types.FilterCoins(tc.coins, tc.denoms),
-			)
-		})
-	}
-}