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params.go
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params.go
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package types
import (
"errors"
"fmt"
"strings"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/params"
tmtime "github.com/tendermint/tendermint/types/time"
cdptypes "github.com/kava-labs/kava/x/cdp/types"
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")
KeyHardSupplyRewardPeriods = []byte("HardSupplyRewardPeriods")
KeyHardBorrowRewardPeriods = []byte("HardBorrowRewardPeriods")
KeyHardDelegatorRewardPeriods = []byte("HardDelegatorRewardPeriods")
KeyClaimEnd = []byte("ClaimEnd")
KeyMultipliers = []byte("ClaimMultipliers")
DefaultActive = false
DefaultRewardPeriods = RewardPeriods{}
DefaultMultiRewardPeriods = MultiRewardPeriods{}
DefaultMultipliers = Multipliers{}
DefaultUSDXClaims = USDXMintingClaims{}
DefaultHardClaims = HardLiquidityProviderClaims{}
DefaultGenesisAccumulationTimes = GenesisAccumulationTimes{}
DefaultClaimEnd = tmtime.Canonical(time.Unix(1, 0))
GovDenom = cdptypes.DefaultGovDenom
PrincipalDenom = "usdx"
IncentiveMacc = kavadistTypes.ModuleName
)
// Params governance parameters for the incentive module
type Params struct {
USDXMintingRewardPeriods RewardPeriods `json:"usdx_minting_reward_periods" yaml:"usdx_minting_reward_periods"`
HardSupplyRewardPeriods MultiRewardPeriods `json:"hard_supply_reward_periods" yaml:"hard_supply_reward_periods"`
HardBorrowRewardPeriods MultiRewardPeriods `json:"hard_borrow_reward_periods" yaml:"hard_borrow_reward_periods"`
HardDelegatorRewardPeriods RewardPeriods `json:"hard_delegator_reward_periods" yaml:"hard_delegator_reward_periods"`
ClaimMultipliers Multipliers `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 MultiRewardPeriods,
hardDelegator RewardPeriods, multipliers Multipliers, claimEnd time.Time) Params {
return Params{
USDXMintingRewardPeriods: usdxMinting,
HardSupplyRewardPeriods: hardSupply,
HardBorrowRewardPeriods: hardBorrow,
HardDelegatorRewardPeriods: hardDelegator,
ClaimMultipliers: multipliers,
ClaimEnd: claimEnd,
}
}
// DefaultParams returns default params for incentive module
func DefaultParams() Params {
return NewParams(DefaultRewardPeriods, DefaultMultiRewardPeriods,
DefaultMultiRewardPeriods, DefaultRewardPeriods, DefaultMultipliers, DefaultClaimEnd)
}
// String implements fmt.Stringer
func (p Params) String() string {
return fmt.Sprintf(`Params:
USDX Minting Reward Periods: %s
Hard Supply Reward Periods: %s
Hard Borrow Reward Periods: %s
Hard Delegator Reward Periods: %s
Claim Multipliers :%s
Claim End Time: %s
`, p.USDXMintingRewardPeriods, p.HardSupplyRewardPeriods, p.HardBorrowRewardPeriods,
p.HardDelegatorRewardPeriods, p.ClaimMultipliers, p.ClaimEnd)
}
// ParamKeyTable Key declaration for parameters
func ParamKeyTable() params.KeyTable {
return params.NewKeyTable().RegisterParamSet(&Params{})
}
// ParamSetPairs implements the ParamSet interface and returns all the key/value pairs
func (p *Params) ParamSetPairs() params.ParamSetPairs {
return params.ParamSetPairs{
params.NewParamSetPair(KeyUSDXMintingRewardPeriods, &p.USDXMintingRewardPeriods, validateRewardPeriodsParam),
params.NewParamSetPair(KeyHardSupplyRewardPeriods, &p.HardSupplyRewardPeriods, validateMultiRewardPeriodsParam),
params.NewParamSetPair(KeyHardBorrowRewardPeriods, &p.HardBorrowRewardPeriods, validateMultiRewardPeriodsParam),
params.NewParamSetPair(KeyHardDelegatorRewardPeriods, &p.HardDelegatorRewardPeriods, validateRewardPeriodsParam),
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 {
return err
}
if err := validateRewardPeriodsParam(p.USDXMintingRewardPeriods); err != nil {
return err
}
if err := validateMultiRewardPeriodsParam(p.HardSupplyRewardPeriods); err != nil {
return err
}
if err := validateMultiRewardPeriodsParam(p.HardBorrowRewardPeriods); err != nil {
return err
}
return validateRewardPeriodsParam(p.HardDelegatorRewardPeriods)
}
func validateRewardPeriodsParam(i interface{}) error {
rewards, ok := i.(RewardPeriods)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return rewards.Validate()
}
func validateMultiRewardPeriodsParam(i interface{}) error {
rewards, ok := i.(MultiRewardPeriods)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return rewards.Validate()
}
func validateMultipliersParam(i interface{}) error {
multipliers, ok := i.(Multipliers)
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 {
return fmt.Errorf("invalid parameter type: %T", i)
}
if endTime.Unix() <= 0 {
return fmt.Errorf("end time should not be zero")
}
return nil
}
// RewardPeriod stores the state of an ongoing reward
type RewardPeriod struct {
Active bool `json:"active" yaml:"active"`
CollateralType string `json:"collateral_type" yaml:"collateral_type"`
Start time.Time `json:"start" yaml:"start"`
End time.Time `json:"end" yaml:"end"`
RewardsPerSecond sdk.Coin `json:"rewards_per_second" yaml:"rewards_per_second"` // per second reward payouts
}
// String implements fmt.Stringer
func (rp RewardPeriod) String() string {
return fmt.Sprintf(`Reward Period:
Collateral Type: %s,
Start: %s,
End: %s,
Rewards Per Second: %s,
Active %t,
`, rp.CollateralType, rp.Start, rp.End, rp.RewardsPerSecond, rp.Active)
}
// NewRewardPeriod returns a new RewardPeriod
func NewRewardPeriod(active bool, collateralType string, start time.Time, end time.Time, reward sdk.Coin) RewardPeriod {
return RewardPeriod{
Active: active,
CollateralType: collateralType,
Start: start,
End: end,
RewardsPerSecond: reward,
}
}
// Validate performs a basic check of a RewardPeriod fields.
func (rp RewardPeriod) Validate() error {
if rp.Start.Unix() <= 0 {
return errors.New("reward period start time cannot be 0")
}
if rp.End.Unix() <= 0 {
return errors.New("reward period end time cannot be 0")
}
if rp.Start.After(rp.End) {
return fmt.Errorf("end period time %s cannot be before start time %s", rp.End, rp.Start)
}
if !rp.RewardsPerSecond.IsValid() {
return fmt.Errorf("invalid reward amount: %s", rp.RewardsPerSecond)
}
if strings.TrimSpace(rp.CollateralType) == "" {
return fmt.Errorf("reward period collateral type cannot be blank: %s", rp)
}
return nil
}
// RewardPeriods array of RewardPeriod
type RewardPeriods []RewardPeriod
// Validate checks if all the RewardPeriods are valid and there are no duplicated
// entries.
func (rps RewardPeriods) Validate() error {
seenPeriods := make(map[string]bool)
for _, rp := range rps {
if seenPeriods[rp.CollateralType] {
return fmt.Errorf("duplicated reward period with collateral type %s", rp.CollateralType)
}
if err := rp.Validate(); err != nil {
return err
}
seenPeriods[rp.CollateralType] = true
}
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 fmt.Errorf("invalid multiplier name: %s", mn)
}