/
types.go
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/
types.go
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package v0_9
import (
"errors"
"fmt"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
)
const (
ModuleName = "incentive"
)
// GenesisClaimPeriodID stores the next claim id and its corresponding denom
type GenesisClaimPeriodID struct {
Denom string `json:"denom" yaml:"denom"`
ID uint64 `json:"id" yaml:"id"`
}
// Validate performs a basic check of a GenesisClaimPeriodID fields.
func (gcp GenesisClaimPeriodID) Validate() error {
if gcp.ID == 0 {
return errors.New("genesis claim period id cannot be 0")
}
return sdk.ValidateDenom(gcp.Denom)
}
// GenesisClaimPeriodIDs array of GenesisClaimPeriodID
type GenesisClaimPeriodIDs []GenesisClaimPeriodID
// Validate checks if all the GenesisClaimPeriodIDs are valid and there are no duplicated
// entries.
func (gcps GenesisClaimPeriodIDs) Validate() error {
seenIDS := make(map[string]bool)
var key string
for _, gcp := range gcps {
key = gcp.Denom + fmt.Sprint(gcp.ID)
if seenIDS[key] {
return fmt.Errorf("duplicated genesis claim period with id %d and denom %s", gcp.ID, gcp.Denom)
}
if err := gcp.Validate(); err != nil {
return err
}
seenIDS[key] = true
}
return nil
}
// GenesisState is the state that must be provided at genesis.
type GenesisState struct {
Params Params `json:"params" yaml:"params"`
PreviousBlockTime time.Time `json:"previous_block_time" yaml:"previous_block_time"`
RewardPeriods RewardPeriods `json:"reward_periods" yaml:"reward_periods"`
ClaimPeriods ClaimPeriods `json:"claim_periods" yaml:"claim_periods"`
Claims Claims `json:"claims" yaml:"claims"`
NextClaimPeriodIDs GenesisClaimPeriodIDs `json:"next_claim_period_ids" yaml:"next_claim_period_ids"`
}
// NewGenesisState returns a new genesis state
func NewGenesisState(params Params, previousBlockTime time.Time, rp RewardPeriods, cp ClaimPeriods, c Claims, ids GenesisClaimPeriodIDs) GenesisState {
return GenesisState{
Params: params,
PreviousBlockTime: previousBlockTime,
RewardPeriods: rp,
ClaimPeriods: cp,
Claims: c,
NextClaimPeriodIDs: ids,
}
}
// Validate performs basic validation of genesis data returning an
// error for any failed validation criteria.
func (gs GenesisState) Validate() error {
if err := gs.Params.Validate(); err != nil {
return err
}
if gs.PreviousBlockTime.Unix() <= 0 {
return errors.New("previous block time cannot be 0")
}
if err := gs.RewardPeriods.Validate(); err != nil {
return err
}
if err := gs.ClaimPeriods.Validate(); err != nil {
return err
}
if err := gs.Claims.Validate(); err != nil {
return err
}
return gs.NextClaimPeriodIDs.Validate()
}
// Params governance parameters for the incentive module
type Params struct {
Active bool `json:"active" yaml:"active"` // top level governance switch to disable all rewards
Rewards Rewards `json:"rewards" yaml:"rewards"`
}
// NewParams returns a new params object
func NewParams(active bool, rewards Rewards) Params {
return Params{
Active: active,
Rewards: rewards,
}
}
// String implements fmt.Stringer
func (p Params) String() string {
return fmt.Sprintf(`Params:
Active: %t
Rewards: %s`, p.Active, p.Rewards)
}
// Validate checks that the parameters have valid values.
func (p Params) Validate() error {
if err := validateActiveParam(p.Active); err != nil {
return err
}
return validateRewardsParam(p.Rewards)
}
func validateActiveParam(i interface{}) error {
_, ok := i.(bool)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return nil
}
func validateRewardsParam(i interface{}) error {
rewards, ok := i.(Rewards)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return rewards.Validate()
}
// Reward stores the specified state for a single reward period.
type Reward struct {
Active bool `json:"active" yaml:"active"` // governance switch to disable a period
Denom string `json:"denom" yaml:"denom"` // the collateral denom rewards apply to, must be found in the cdp collaterals
AvailableRewards sdk.Coin `json:"available_rewards" yaml:"available_rewards"` // the total amount of coins distributed per period
Duration time.Duration `json:"duration" yaml:"duration"` // the duration of the period
TimeLock time.Duration `json:"time_lock" yaml:"time_lock"` // how long rewards for this period are timelocked
ClaimDuration time.Duration `json:"claim_duration" yaml:"claim_duration"` // how long users have after the period ends to claim their rewards
}
// NewReward returns a new Reward
func NewReward(active bool, denom string, reward sdk.Coin, duration time.Duration, timelock time.Duration, claimDuration time.Duration) Reward {
return Reward{
Active: active,
Denom: denom,
AvailableRewards: reward,
Duration: duration,
TimeLock: timelock,
ClaimDuration: claimDuration,
}
}
// String implements fmt.Stringer
func (r Reward) String() string {
return fmt.Sprintf(`Reward:
Active: %t,
Denom: %s,
Available Rewards: %s,
Duration: %s,
Time Lock: %s,
Claim Duration: %s`,
r.Active, r.Denom, r.AvailableRewards, r.Duration, r.TimeLock, r.ClaimDuration)
}
// Validate performs a basic check of a reward fields.
func (r Reward) Validate() error {
if !r.AvailableRewards.IsValid() {
return fmt.Errorf("invalid reward coins %s for %s", r.AvailableRewards, r.Denom)
}
if !r.AvailableRewards.IsPositive() {
return fmt.Errorf("reward amount must be positive, is %s for %s", r.AvailableRewards, r.Denom)
}
if r.Duration <= 0 {
return fmt.Errorf("reward duration must be positive, is %s for %s", r.Duration, r.Denom)
}
if r.TimeLock < 0 {
return fmt.Errorf("reward timelock must be non-negative, is %s for %s", r.TimeLock, r.Denom)
}
if r.ClaimDuration <= 0 {
return fmt.Errorf("claim duration must be positive, is %s for %s", r.ClaimDuration, r.Denom)
}
return sdk.ValidateDenom(r.Denom)
}
// Rewards array of Reward
type Rewards []Reward
// Validate checks if all the rewards are valid and there are no duplicated
// entries.
func (rs Rewards) Validate() error {
rewardDenoms := make(map[string]bool)
for _, r := range rs {
if rewardDenoms[r.Denom] {
return fmt.Errorf("cannot have duplicate reward denoms: %s", r.Denom)
}
if err := r.Validate(); err != nil {
return err
}
rewardDenoms[r.Denom] = true
}
return nil
}
// String implements fmt.Stringer
func (rs Rewards) String() string {
out := "Rewards\n"
for _, r := range rs {
out += fmt.Sprintf("%s\n", r)
}
return out
}
// RewardPeriod stores the state of an ongoing reward
type RewardPeriod struct {
Denom string `json:"denom" yaml:"denom"`
Start time.Time `json:"start" yaml:"start"`
End time.Time `json:"end" yaml:"end"`
Reward sdk.Coin `json:"reward" yaml:"reward"` // per second reward payouts
ClaimEnd time.Time `json:"claim_end" yaml:"claim_end"`
ClaimTimeLock time.Duration `json:"claim_time_lock" yaml:"claim_time_lock"` // the amount of time rewards are timelocked once they are sent to users
}
// String implements fmt.Stringer
func (rp RewardPeriod) String() string {
return fmt.Sprintf(`Reward Period:
Denom: %s,
Start: %s,
End: %s,
Reward: %s,
Claim End: %s,
Claim Time Lock: %s
`, rp.Denom, rp.Start, rp.End, rp.Reward, rp.ClaimEnd, rp.ClaimTimeLock)
}
// NewRewardPeriod returns a new RewardPeriod
func NewRewardPeriod(denom string, start time.Time, end time.Time, reward sdk.Coin, claimEnd time.Time, claimTimeLock time.Duration) RewardPeriod {
return RewardPeriod{
Denom: denom,
Start: start,
End: end,
Reward: reward,
ClaimEnd: claimEnd,
ClaimTimeLock: claimTimeLock,
}
}
// 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.Reward.IsValid() {
return fmt.Errorf("invalid reward amount: %s", rp.Reward)
}
if rp.ClaimEnd.Unix() <= 0 {
return errors.New("reward period claim end time cannot be 0")
}
if rp.ClaimTimeLock == 0 {
return errors.New("reward claim time lock cannot be 0")
}
return sdk.ValidateDenom(rp.Denom)
}
// 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.Denom] {
return fmt.Errorf("duplicated reward period with denom %s", rp.Denom)
}
if err := rp.Validate(); err != nil {
return err
}
seenPeriods[rp.Denom] = true
}
return nil
}
// ClaimPeriod stores the state of an ongoing claim period
type ClaimPeriod struct {
Denom string `json:"denom" yaml:"denom"`
ID uint64 `json:"id" yaml:"id"`
End time.Time `json:"end" yaml:"end"`
TimeLock time.Duration `json:"time_lock" yaml:"time_lock"`
}
// NewClaimPeriod returns a new ClaimPeriod
func NewClaimPeriod(denom string, id uint64, end time.Time, timeLock time.Duration) ClaimPeriod {
return ClaimPeriod{
Denom: denom,
ID: id,
End: end,
TimeLock: timeLock,
}
}
// Validate performs a basic check of a ClaimPeriod fields.
func (cp ClaimPeriod) Validate() error {
if cp.ID == 0 {
return errors.New("claim period id cannot be 0")
}
if cp.End.Unix() <= 0 {
return errors.New("claim period end time cannot be 0")
}
if cp.TimeLock == 0 {
return errors.New("claim period time lock cannot be 0")
}
return sdk.ValidateDenom(cp.Denom)
}
// String implements fmt.Stringer
func (cp ClaimPeriod) String() string {
return fmt.Sprintf(`Claim Period:
Denom: %s,
ID: %d,
End: %s,
Claim Time Lock: %s
`, cp.Denom, cp.ID, cp.End, cp.TimeLock)
}
// ClaimPeriods array of ClaimPeriod
type ClaimPeriods []ClaimPeriod
// Validate checks if all the ClaimPeriods are valid and there are no duplicated
// entries.
func (cps ClaimPeriods) Validate() error {
seenPeriods := make(map[string]bool)
var key string
for _, cp := range cps {
key = cp.Denom + fmt.Sprint(cp.ID)
if seenPeriods[key] {
return fmt.Errorf("duplicated claim period with id %d and denom %s", cp.ID, cp.Denom)
}
if err := cp.Validate(); err != nil {
return err
}
seenPeriods[key] = true
}
return nil
}
// Claim stores the rewards that can be claimed by owner
type Claim struct {
Owner sdk.AccAddress `json:"owner" yaml:"owner"`
Reward sdk.Coin `json:"reward" yaml:"reward"`
Denom string `json:"denom" yaml:"denom"`
ClaimPeriodID uint64 `json:"claim_period_id" yaml:"claim_period_id"`
}
// NewClaim returns a new Claim
func NewClaim(owner sdk.AccAddress, reward sdk.Coin, denom string, claimPeriodID uint64) Claim {
return Claim{
Owner: owner,
Reward: reward,
Denom: denom,
ClaimPeriodID: claimPeriodID,
}
}
// Validate performs a basic check of a Claim fields.
func (c Claim) Validate() error {
if c.Owner.Empty() {
return errors.New("claim owner cannot be empty")
}
if !c.Reward.IsValid() {
return fmt.Errorf("invalid reward amount: %s", c.Reward)
}
if c.ClaimPeriodID == 0 {
return errors.New("claim period id cannot be 0")
}
return sdk.ValidateDenom(c.Denom)
}
// String implements fmt.Stringer
func (c Claim) String() string {
return fmt.Sprintf(`Claim:
Owner: %s,
Denom: %s,
Reward: %s,
Claim Period ID: %d,
`, c.Owner, c.Denom, c.Reward, c.ClaimPeriodID)
}
// Claims array of Claim
type Claims []Claim
// Validate checks if all the claims are valid and there are no duplicated
// entries.
func (cs Claims) Validate() error {
seemClaims := make(map[string]bool)
var key string
for _, c := range cs {
key = c.Denom + fmt.Sprint(c.ClaimPeriodID) + c.Owner.String()
if c.Owner != nil && seemClaims[key] {
return fmt.Errorf("duplicated claim from owner %s and denom %s", c.Owner, c.Denom)
}
if err := c.Validate(); err != nil {
return err
}
seemClaims[key] = true
}
return nil
}
// NewRewardPeriodFromReward returns a new reward period from the input reward and block time
func NewRewardPeriodFromReward(reward Reward, blockTime time.Time) RewardPeriod {
// note: reward periods store the amount of rewards paid PER SECOND
rewardsPerSecond := sdk.NewDecFromInt(reward.AvailableRewards.Amount).Quo(sdk.NewDecFromInt(sdk.NewInt(int64(reward.Duration.Seconds())))).TruncateInt()
rewardCoinPerSecond := sdk.NewCoin(reward.AvailableRewards.Denom, rewardsPerSecond)
return RewardPeriod{
Denom: reward.Denom,
Start: blockTime,
End: blockTime.Add(reward.Duration),
Reward: rewardCoinPerSecond,
ClaimEnd: blockTime.Add(reward.Duration).Add(reward.ClaimDuration),
ClaimTimeLock: reward.TimeLock,
}
}