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claims.go
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claims.go
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package types
import (
"errors"
"fmt"
"strings"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
)
const (
USDXMintingClaimType = "usdx_minting"
HardLiquidityProviderClaimType = "hard_liquidity_provider"
BondDenom = "ukava"
)
// Claim is an interface for handling common claim actions
type Claim interface {
GetOwner() sdk.AccAddress
GetReward() sdk.Coin
GetType() string
}
// Claims is a slice of Claim
type Claims []Claim
// BaseClaim is a common type shared by all Claims
type BaseClaim struct {
Owner sdk.AccAddress `json:"owner" yaml:"owner"`
Reward sdk.Coin `json:"reward" yaml:"reward"`
}
// GetOwner is a getter for Claim Owner
func (c BaseClaim) GetOwner() sdk.AccAddress { return c.Owner }
// GetReward is a getter for Claim Reward
func (c BaseClaim) GetReward() sdk.Coin { return c.Reward }
// GetType returns the claim type, used to identify auctions in event attributes
func (c BaseClaim) GetType() string { return "base" }
// Validate performs a basic check of a BaseClaim fields
func (c BaseClaim) 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)
}
return nil
}
// String implements fmt.Stringer
func (c BaseClaim) String() string {
return fmt.Sprintf(`Claim:
Owner: %s,
Reward: %s,
`, c.Owner, c.Reward)
}
// BaseMultiClaim is a common type shared by all Claims with multiple reward denoms
type BaseMultiClaim struct {
Owner sdk.AccAddress `json:"owner" yaml:"owner"`
Reward sdk.Coins `json:"reward" yaml:"reward"`
}
// GetOwner is a getter for Claim Owner
func (c BaseMultiClaim) GetOwner() sdk.AccAddress { return c.Owner }
// GetReward is a getter for Claim Reward
func (c BaseMultiClaim) GetReward() sdk.Coins { return c.Reward }
// GetType returns the claim type, used to identify auctions in event attributes
func (c BaseMultiClaim) GetType() string { return "base" }
// Validate performs a basic check of a BaseClaim fields
func (c BaseMultiClaim) 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)
}
return nil
}
// String implements fmt.Stringer
func (c BaseMultiClaim) String() string {
return fmt.Sprintf(`Claim:
Owner: %s,
Reward: %s,
`, c.Owner, c.Reward)
}
// -------------- Custom Claim Types --------------
// USDXMintingClaim is for USDX minting rewards
type USDXMintingClaim struct {
BaseClaim `json:"base_claim" yaml:"base_claim"`
RewardIndexes RewardIndexes `json:"reward_indexes" yaml:"reward_indexes"`
}
// NewUSDXMintingClaim returns a new USDXMintingClaim
func NewUSDXMintingClaim(owner sdk.AccAddress, reward sdk.Coin, rewardIndexes RewardIndexes) USDXMintingClaim {
return USDXMintingClaim{
BaseClaim: BaseClaim{
Owner: owner,
Reward: reward,
},
RewardIndexes: rewardIndexes,
}
}
// GetType returns the claim's type
func (c USDXMintingClaim) GetType() string { return USDXMintingClaimType }
// GetReward returns the claim's reward coin
func (c USDXMintingClaim) GetReward() sdk.Coin { return c.Reward }
// GetOwner returns the claim's owner
func (c USDXMintingClaim) GetOwner() sdk.AccAddress { return c.Owner }
// Validate performs a basic check of a Claim fields
func (c USDXMintingClaim) Validate() error {
if err := c.RewardIndexes.Validate(); err != nil {
return err
}
return c.BaseClaim.Validate()
}
// String implements fmt.Stringer
func (c USDXMintingClaim) String() string {
return fmt.Sprintf(`%s
Reward Indexes: %s,
`, c.BaseClaim, c.RewardIndexes)
}
// HasRewardIndex check if a claim has a reward index for the input collateral type
func (c USDXMintingClaim) HasRewardIndex(collateralType string) (int64, bool) {
for index, ri := range c.RewardIndexes {
if ri.CollateralType == collateralType {
return int64(index), true
}
}
return 0, false
}
// USDXMintingClaims slice of USDXMintingClaim
type USDXMintingClaims []USDXMintingClaim
// Validate checks if all the claims are valid and there are no duplicated
// entries.
func (cs USDXMintingClaims) Validate() error {
for _, c := range cs {
if err := c.Validate(); err != nil {
return err
}
}
return nil
}
// HardLiquidityProviderClaim stores the hard liquidity provider rewards that can be claimed by owner
type HardLiquidityProviderClaim struct {
BaseMultiClaim `json:"base_claim" yaml:"base_claim"`
SupplyRewardIndexes MultiRewardIndexes `json:"supply_reward_indexes" yaml:"supply_reward_indexes"`
BorrowRewardIndexes MultiRewardIndexes `json:"borrow_reward_indexes" yaml:"borrow_reward_indexes"`
DelegatorRewardIndexes RewardIndexes `json:"delegator_reward_indexes" yaml:"delegator_reward_indexes"`
}
// NewHardLiquidityProviderClaim returns a new HardLiquidityProviderClaim
func NewHardLiquidityProviderClaim(owner sdk.AccAddress, rewards sdk.Coins, supplyRewardIndexes,
borrowRewardIndexes MultiRewardIndexes, delegatorRewardIndexes RewardIndexes) HardLiquidityProviderClaim {
return HardLiquidityProviderClaim{
BaseMultiClaim: BaseMultiClaim{
Owner: owner,
Reward: rewards,
},
SupplyRewardIndexes: supplyRewardIndexes,
BorrowRewardIndexes: borrowRewardIndexes,
DelegatorRewardIndexes: delegatorRewardIndexes,
}
}
// GetType returns the claim's type
func (c HardLiquidityProviderClaim) GetType() string { return HardLiquidityProviderClaimType }
// GetReward returns the claim's reward coin
func (c HardLiquidityProviderClaim) GetReward() sdk.Coins { return c.Reward }
// GetOwner returns the claim's owner
func (c HardLiquidityProviderClaim) GetOwner() sdk.AccAddress { return c.Owner }
// Validate performs a basic check of a HardLiquidityProviderClaim fields
func (c HardLiquidityProviderClaim) Validate() error {
if err := c.SupplyRewardIndexes.Validate(); err != nil {
return err
}
if err := c.BorrowRewardIndexes.Validate(); err != nil {
return err
}
if err := c.DelegatorRewardIndexes.Validate(); err != nil {
return err
}
return c.BaseMultiClaim.Validate()
}
// String implements fmt.Stringer
func (c HardLiquidityProviderClaim) String() string {
return fmt.Sprintf(`%s
Supply Reward Indexes: %s,
Borrow Reward Indexes: %s,
Delegator Reward Indexes: %s,
`, c.BaseMultiClaim, c.SupplyRewardIndexes, c.BorrowRewardIndexes, c.DelegatorRewardIndexes)
}
// HasSupplyRewardIndex check if a claim has a supply reward index for the input collateral type
func (c HardLiquidityProviderClaim) HasSupplyRewardIndex(denom string) (int64, bool) {
for index, ri := range c.SupplyRewardIndexes {
if ri.CollateralType == denom {
return int64(index), true
}
}
return 0, false
}
// HasBorrowRewardIndex check if a claim has a borrow reward index for the input collateral type
func (c HardLiquidityProviderClaim) HasBorrowRewardIndex(denom string) (int64, bool) {
for index, ri := range c.BorrowRewardIndexes {
if ri.CollateralType == denom {
return int64(index), true
}
}
return 0, false
}
// HasDelegatorRewardIndex check if a claim has a delegator reward index for the input collateral type
func (c HardLiquidityProviderClaim) HasDelegatorRewardIndex(collateralType string) (int64, bool) {
for index, ri := range c.DelegatorRewardIndexes {
if ri.CollateralType == collateralType {
return int64(index), true
}
}
return 0, false
}
// HardLiquidityProviderClaims slice of HardLiquidityProviderClaim
type HardLiquidityProviderClaims []HardLiquidityProviderClaim
// Validate checks if all the claims are valid and there are no duplicated
// entries.
func (cs HardLiquidityProviderClaims) Validate() error {
for _, c := range cs {
if err := c.Validate(); err != nil {
return err
}
}
return nil
}
// ---------------------- Reward periods are used by the params ----------------------
// MultiRewardPeriod supports multiple reward types
type MultiRewardPeriod 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.Coins `json:"rewards_per_second" yaml:"rewards_per_second"` // per second reward payouts
}
// String implements fmt.Stringer
func (mrp MultiRewardPeriod) String() string {
return fmt.Sprintf(`Reward Period:
Collateral Type: %s,
Start: %s,
End: %s,
Rewards Per Second: %s,
Active %t,
`, mrp.CollateralType, mrp.Start, mrp.End, mrp.RewardsPerSecond, mrp.Active)
}
// NewMultiRewardPeriod returns a new MultiRewardPeriod
func NewMultiRewardPeriod(active bool, collateralType string, start time.Time, end time.Time, reward sdk.Coins) MultiRewardPeriod {
return MultiRewardPeriod{
Active: active,
CollateralType: collateralType,
Start: start,
End: end,
RewardsPerSecond: reward,
}
}
// Validate performs a basic check of a MultiRewardPeriod.
func (mrp MultiRewardPeriod) Validate() error {
if mrp.Start.IsZero() {
return errors.New("reward period start time cannot be 0")
}
if mrp.End.IsZero() {
return errors.New("reward period end time cannot be 0")
}
if mrp.Start.After(mrp.End) {
return fmt.Errorf("end period time %s cannot be before start time %s", mrp.End, mrp.Start)
}
if !mrp.RewardsPerSecond.IsValid() {
return fmt.Errorf("invalid reward amount: %s", mrp.RewardsPerSecond)
}
if strings.TrimSpace(mrp.CollateralType) == "" {
return fmt.Errorf("reward period collateral type cannot be blank: %s", mrp)
}
return nil
}
// MultiRewardPeriods array of MultiRewardPeriod
type MultiRewardPeriods []MultiRewardPeriod
// GetMultiRewardPeriod fetches a MultiRewardPeriod from an array of MultiRewardPeriods by its denom
func (mrps MultiRewardPeriods) GetMultiRewardPeriod(denom string) (MultiRewardPeriod, bool) {
for _, rp := range mrps {
if rp.CollateralType == denom {
return rp, true
}
}
return MultiRewardPeriod{}, false
}
// GetMultiRewardPeriodIndex returns the index of a MultiRewardPeriod inside array MultiRewardPeriods
func (mrps MultiRewardPeriods) GetMultiRewardPeriodIndex(denom string) (int, bool) {
for i, rp := range mrps {
if rp.CollateralType == denom {
return i, true
}
}
return -1, false
}
// Validate checks if all the RewardPeriods are valid and there are no duplicated
// entries.
func (mrps MultiRewardPeriods) Validate() error {
seenPeriods := make(map[string]bool)
for _, rp := range mrps {
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
}
// ---------------------- Reward indexes are used internally in the store ----------------------
// RewardIndex stores reward accumulation information
type RewardIndex struct {
CollateralType string `json:"collateral_type" yaml:"collateral_type"`
RewardFactor sdk.Dec `json:"reward_factor" yaml:"reward_factor"`
}
// NewRewardIndex returns a new RewardIndex
func NewRewardIndex(collateralType string, factor sdk.Dec) RewardIndex {
return RewardIndex{
CollateralType: collateralType,
RewardFactor: factor,
}
}
func (ri RewardIndex) String() string {
return fmt.Sprintf(`Collateral Type: %s, RewardFactor: %s`, ri.CollateralType, ri.RewardFactor)
}
// Validate validates reward index
func (ri RewardIndex) Validate() error {
if ri.RewardFactor.IsNegative() {
return fmt.Errorf("reward factor value should be positive, is %s for %s", ri.RewardFactor, ri.CollateralType)
}
if strings.TrimSpace(ri.CollateralType) == "" {
return fmt.Errorf("collateral type should not be empty")
}
return nil
}
// RewardIndexes slice of RewardIndex
type RewardIndexes []RewardIndex
// GetRewardIndex fetches a RewardIndex by its denom
func (ris RewardIndexes) GetRewardIndex(denom string) (RewardIndex, bool) {
for _, ri := range ris {
if ri.CollateralType == denom {
return ri, true
}
}
return RewardIndex{}, false
}
// GetFactorIndex gets the index of a specific reward index inside the array by its index
func (ris RewardIndexes) GetFactorIndex(denom string) (int, bool) {
for i, ri := range ris {
if ri.CollateralType == denom {
return i, true
}
}
return -1, false
}
// Validate validation for reward indexes
func (ris RewardIndexes) Validate() error {
for _, ri := range ris {
if err := ri.Validate(); err != nil {
return err
}
}
return nil
}
// MultiRewardIndex stores reward accumulation information on multiple reward types
type MultiRewardIndex struct {
CollateralType string `json:"collateral_type" yaml:"collateral_type"`
RewardIndexes RewardIndexes `json:"reward_indexes" yaml:"reward_indexes"`
}
// NewMultiRewardIndex returns a new MultiRewardIndex
func NewMultiRewardIndex(collateralType string, indexes RewardIndexes) MultiRewardIndex {
return MultiRewardIndex{
CollateralType: collateralType,
RewardIndexes: indexes,
}
}
// GetFactorIndex gets the index of a specific reward index inside the array by its index
func (mri MultiRewardIndex) GetFactorIndex(denom string) (int, bool) {
for i, ri := range mri.RewardIndexes {
if ri.CollateralType == denom {
return i, true
}
}
return -1, false
}
func (mri MultiRewardIndex) String() string {
return fmt.Sprintf(`Collateral Type: %s, Reward Indexes: %s`, mri.CollateralType, mri.RewardIndexes)
}
// Validate validates multi-reward index
func (mri MultiRewardIndex) Validate() error {
for _, rf := range mri.RewardIndexes {
if rf.RewardFactor.IsNegative() {
return fmt.Errorf("reward index's factor value cannot be negative: %s", rf)
}
}
if strings.TrimSpace(mri.CollateralType) == "" {
return fmt.Errorf("collateral type should not be empty")
}
return nil
}
// MultiRewardIndexes slice of MultiRewardIndex
type MultiRewardIndexes []MultiRewardIndex
// GetRewardIndex fetches a RewardIndex from a MultiRewardIndex by its denom
func (mris MultiRewardIndexes) GetRewardIndex(denom string) (MultiRewardIndex, bool) {
for _, ri := range mris {
if ri.CollateralType == denom {
return ri, true
}
}
return MultiRewardIndex{}, false
}
// GetRewardIndexIndex fetches a specific reward index inside the array by its denom
func (mris MultiRewardIndexes) GetRewardIndexIndex(denom string) (int, bool) {
for i, ri := range mris {
if ri.CollateralType == denom {
return i, true
}
}
return -1, false
}
// Validate validation for reward indexes
func (mris MultiRewardIndexes) Validate() error {
for _, mri := range mris {
if err := mri.Validate(); err != nil {
return err
}
}
return nil
}