0g-chain/x/incentive/keeper/rewards_supply.go

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package keeper
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
hardtypes "github.com/kava-labs/kava/x/hard/types"
"github.com/kava-labs/kava/x/incentive/types"
)
// AccumulateHardSupplyRewards calculates new rewards to distribute this block and updates the global indexes to reflect this.
// The provided rewardPeriod must be valid to avoid panics in calculating time durations.
func (k Keeper) AccumulateHardSupplyRewards(ctx sdk.Context, rewardPeriod types.MultiRewardPeriod) {
previousAccrualTime, found := k.GetPreviousHardSupplyRewardAccrualTime(ctx, rewardPeriod.CollateralType)
if !found {
previousAccrualTime = ctx.BlockTime()
}
indexes, found := k.GetHardSupplyRewardIndexes(ctx, rewardPeriod.CollateralType)
if !found {
indexes = types.RewardIndexes{}
}
acc := types.NewAccumulator(previousAccrualTime, indexes)
totalSource := k.getHardSupplyTotalSourceShares(ctx, rewardPeriod.CollateralType)
acc.Accumulate(rewardPeriod, totalSource, ctx.BlockTime())
k.SetPreviousHardSupplyRewardAccrualTime(ctx, rewardPeriod.CollateralType, acc.PreviousAccumulationTime)
if len(acc.Indexes) > 0 {
// the store panics when setting empty or nil indexes
k.SetHardSupplyRewardIndexes(ctx, rewardPeriod.CollateralType, acc.Indexes)
}
}
// getHardSupplyTotalSourceShares fetches the sum of all source shares for a supply reward.
// In the case of hard supply, this is the total supplied divided by the supply interest factor.
// This gives the "pre interest" value of the total supplied.
func (k Keeper) getHardSupplyTotalSourceShares(ctx sdk.Context, denom string) sdk.Dec {
totalSuppliedCoins, found := k.hardKeeper.GetSuppliedCoins(ctx)
if !found {
// assume no coins have been supplied
totalSuppliedCoins = sdk.NewCoins()
}
totalSupplied := totalSuppliedCoins.AmountOf(denom)
interestFactor, found := k.hardKeeper.GetSupplyInterestFactor(ctx, denom)
if !found {
// assume nothing has been borrowed so the factor starts at it's default value
interestFactor = sdk.OneDec()
}
// return supplied/factor to get the "pre interest" value of the current total supplied
return totalSupplied.ToDec().Quo(interestFactor)
}
// InitializeHardSupplyReward initializes the supply-side of a hard liquidity provider claim
// by creating the claim and setting the supply reward factor index
func (k Keeper) InitializeHardSupplyReward(ctx sdk.Context, deposit hardtypes.Deposit) {
claim, found := k.GetHardLiquidityProviderClaim(ctx, deposit.Depositor)
if !found {
Refactor to DelegatorClaim and implement new MsgClaimDelegatorReward (#948) * update claim attribute type to MultiRewardIndexes * update param attribute type to MultiRewardPeriods * keeper: update params to match types * keeper: update delegator core keeper methods * keeper: update InitializeHardDelegatorReward * keeper: update SynchronizeHardDelegatorRewards * remove reward factor in favor of reward indexes * update querier * fix test: delegator init test * fix test: delegator sync test * implement delegator reward accumulation * fix test: delegator general tests * add legact types, update v0_11 -> v0_14 migration * remove duplicate import form v0_15 migration * implement v0_15incentive migration * test data and migration test * add multiple reward denoms to init/sync tests * update delegator test with multiple reward coins * clean up simulation sync * types: introduce DelegatorClaim, refactor HardClaim * add core DelegateClaim store methods * refactor delegator reward init, accumulation, sync * update hooks * update params and genesis logic * update abci * update types tests * update querier types/keeper for compile * update supply rewards tests * update borrow reward tests * update delegator reward tests * update handler/genesis test for compile * add new msg type * implement delegator claim payouts * submission + handling of new msg * implement new querier types/keeper logic * add new queries to cli/rest * update migration * register new msgs/types on codec * remove delegator syncing from hard sync method
2021-07-07 16:50:14 +00:00
claim = types.NewHardLiquidityProviderClaim(deposit.Depositor, sdk.Coins{}, nil, nil)
}
Incentive refactor: hard rewards (#929) * organise testing committee gen state * remove repeated test app initialization * minor fixes from linter in tests * move more setup to SetupApp * split up KeeperTestSuite for each reward type * simplify KeeperTestSuite * simplify PayoutKeeperSuite * simplify DelegatorRewardSuite * simplify SupplyRewardsSuite * simplify BorrowRewardsSuite * simplify USDXRewardsSuite * add auth genesis builder for easier test setup * migrate all incentive tests to auth builder * add incentive genesis builder for easier setup migrate hard incentive tests * migrate all tests to incentive builder * add hard genesis builder * small tidy ups * deduplicate initialTime from borrow tests * deduplicate initialtTime from supply tests * deduplicate initialTime from usdx and keeper tests * deduplicate initialTime in delgator tests * deduplicate genesis time in payout test * deduplicate test app initialization * make authGenesisBuilder available for all modules * remove unused pricefeed setup * export incentive genesis builder * remove commented out test cases * migrate cdp test to new test state builders * migrate vv payout tests to use new builders * add SynchronizeHardBorrowReward unit test * extract calculatReward method * tidy up unit test for borrow rewards * add helper method to RewardIndexes * user helper to extract logic from SyncBorrowReward * add Get methods to (Multi)RewardIndexes * replace params.Subspace in keeper to test easier * add unit tests for usdx minting * refactor InitializeUSDXMintingClaim * add unit tests for InitializeHardBorrowRewards * refactor SynchronizeUSDXMintingReward * add unit tests for UpdateHardBorrowIndexDenoms * change rewardSource type to Dec needed by delegation rewards * fix typo in test names * refactor UpdateHardBorrowIndexDenoms * update genesis test TODO to use auth builder * add skipped test for bug in usdx sync * extract common method for calculating rewards * doc comment tidy * add unit tests for delegator rewards * tidy up test files * remove old TODOs * reaarrange InitializeHardDelegatorReward to fit with other init reward functions * duplicate borrow unit tests to create supply tests * add tests for syncing with zero rewards per second * refactor SynchronizeHardDelegatorRewards * refactor supply rewards in same way as borrow * fix total delegation calculation bug * fix new usdx reward bug * fix new supply/borrow reward bug * remove working comment * standardize behaviour when global factors missing * improve documentation for CalculateRewards * standardize variable names * remove panic from calculateSingleReward * wip * Tidy up comments * remove wip comment
2021-06-21 21:05:17 +00:00
var supplyRewardIndexes types.MultiRewardIndexes
for _, coin := range deposit.Amount {
globalRewardIndexes, found := k.GetHardSupplyRewardIndexes(ctx, coin.Denom)
if !found {
globalRewardIndexes = types.RewardIndexes{}
}
supplyRewardIndexes = supplyRewardIndexes.With(coin.Denom, globalRewardIndexes)
}
claim.SupplyRewardIndexes = supplyRewardIndexes
k.SetHardLiquidityProviderClaim(ctx, claim)
}
// SynchronizeHardSupplyReward updates the claim object by adding any accumulated rewards
// and updating the reward index value
func (k Keeper) SynchronizeHardSupplyReward(ctx sdk.Context, deposit hardtypes.Deposit) {
claim, found := k.GetHardLiquidityProviderClaim(ctx, deposit.Depositor)
if !found {
return
}
// Source shares for hard deposits is their normalized deposit amount
normalizedDeposit, err := deposit.NormalizedDeposit()
if err != nil {
panic(fmt.Sprintf("during deposit reward sync, could not get normalized deposit for %s: %s", deposit.Depositor, err.Error()))
}
for _, normedDeposit := range normalizedDeposit {
claim = k.synchronizeSingleHardSupplyReward(ctx, claim, normedDeposit.Denom, normedDeposit.Amount)
}
k.SetHardLiquidityProviderClaim(ctx, claim)
}
// synchronizeSingleHardSupplyReward synchronizes a single rewarded supply denom in a hard claim.
// It returns the claim without setting in the store.
// The public methods for accessing and modifying claims are preferred over this one. Direct modification of claims is easy to get wrong.
func (k Keeper) synchronizeSingleHardSupplyReward(ctx sdk.Context, claim types.HardLiquidityProviderClaim, denom string, sourceShares sdk.Dec) types.HardLiquidityProviderClaim {
globalRewardIndexes, found := k.GetHardSupplyRewardIndexes(ctx, denom)
if !found {
// The global factor is only not found if
// - the supply denom has not started accumulating rewards yet (either there is no reward specified in params, or the reward start time hasn't been hit)
// - OR it was wrongly deleted from state (factors should never be removed while unsynced claims exist)
// If not found we could either skip this sync, or assume the global factor is zero.
// Skipping will avoid storing unnecessary factors in the claim for non rewarded denoms.
// And in the event a global factor is wrongly deleted, it will avoid this function panicking when calculating rewards.
return claim
}
userRewardIndexes, found := claim.SupplyRewardIndexes.Get(denom)
if !found {
// Normally the reward indexes should always be found.
// But if a denom was not rewarded then becomes rewarded (ie a reward period is added to params), then the indexes will be missing from claims for that supplied denom.
// So given the reward period was just added, assume the starting value for any global reward indexes, which is an empty slice.
userRewardIndexes = types.RewardIndexes{}
}
newRewards, err := k.CalculateRewards(userRewardIndexes, globalRewardIndexes, sourceShares)
if err != nil {
// Global reward factors should never decrease, as it would lead to a negative update to claim.Rewards.
// This panics if a global reward factor decreases or disappears between the old and new indexes.
panic(fmt.Sprintf("corrupted global reward indexes found: %v", err))
}
claim.Reward = claim.Reward.Add(newRewards...)
claim.SupplyRewardIndexes = claim.SupplyRewardIndexes.With(denom, globalRewardIndexes)
return claim
}
// UpdateHardSupplyIndexDenoms adds any new deposit denoms to the claim's supply reward index
func (k Keeper) UpdateHardSupplyIndexDenoms(ctx sdk.Context, deposit hardtypes.Deposit) {
claim, found := k.GetHardLiquidityProviderClaim(ctx, deposit.Depositor)
if !found {
Refactor to DelegatorClaim and implement new MsgClaimDelegatorReward (#948) * update claim attribute type to MultiRewardIndexes * update param attribute type to MultiRewardPeriods * keeper: update params to match types * keeper: update delegator core keeper methods * keeper: update InitializeHardDelegatorReward * keeper: update SynchronizeHardDelegatorRewards * remove reward factor in favor of reward indexes * update querier * fix test: delegator init test * fix test: delegator sync test * implement delegator reward accumulation * fix test: delegator general tests * add legact types, update v0_11 -> v0_14 migration * remove duplicate import form v0_15 migration * implement v0_15incentive migration * test data and migration test * add multiple reward denoms to init/sync tests * update delegator test with multiple reward coins * clean up simulation sync * types: introduce DelegatorClaim, refactor HardClaim * add core DelegateClaim store methods * refactor delegator reward init, accumulation, sync * update hooks * update params and genesis logic * update abci * update types tests * update querier types/keeper for compile * update supply rewards tests * update borrow reward tests * update delegator reward tests * update handler/genesis test for compile * add new msg type * implement delegator claim payouts * submission + handling of new msg * implement new querier types/keeper logic * add new queries to cli/rest * update migration * register new msgs/types on codec * remove delegator syncing from hard sync method
2021-07-07 16:50:14 +00:00
claim = types.NewHardLiquidityProviderClaim(deposit.Depositor, sdk.Coins{}, nil, nil)
}
depositDenoms := getDenoms(deposit.Amount)
supplyRewardIndexDenoms := claim.SupplyRewardIndexes.GetCollateralTypes()
supplyRewardIndexes := claim.SupplyRewardIndexes
Incentive refactor: hard rewards (#929) * organise testing committee gen state * remove repeated test app initialization * minor fixes from linter in tests * move more setup to SetupApp * split up KeeperTestSuite for each reward type * simplify KeeperTestSuite * simplify PayoutKeeperSuite * simplify DelegatorRewardSuite * simplify SupplyRewardsSuite * simplify BorrowRewardsSuite * simplify USDXRewardsSuite * add auth genesis builder for easier test setup * migrate all incentive tests to auth builder * add incentive genesis builder for easier setup migrate hard incentive tests * migrate all tests to incentive builder * add hard genesis builder * small tidy ups * deduplicate initialTime from borrow tests * deduplicate initialtTime from supply tests * deduplicate initialTime from usdx and keeper tests * deduplicate initialTime in delgator tests * deduplicate genesis time in payout test * deduplicate test app initialization * make authGenesisBuilder available for all modules * remove unused pricefeed setup * export incentive genesis builder * remove commented out test cases * migrate cdp test to new test state builders * migrate vv payout tests to use new builders * add SynchronizeHardBorrowReward unit test * extract calculatReward method * tidy up unit test for borrow rewards * add helper method to RewardIndexes * user helper to extract logic from SyncBorrowReward * add Get methods to (Multi)RewardIndexes * replace params.Subspace in keeper to test easier * add unit tests for usdx minting * refactor InitializeUSDXMintingClaim * add unit tests for InitializeHardBorrowRewards * refactor SynchronizeUSDXMintingReward * add unit tests for UpdateHardBorrowIndexDenoms * change rewardSource type to Dec needed by delegation rewards * fix typo in test names * refactor UpdateHardBorrowIndexDenoms * update genesis test TODO to use auth builder * add skipped test for bug in usdx sync * extract common method for calculating rewards * doc comment tidy * add unit tests for delegator rewards * tidy up test files * remove old TODOs * reaarrange InitializeHardDelegatorReward to fit with other init reward functions * duplicate borrow unit tests to create supply tests * add tests for syncing with zero rewards per second * refactor SynchronizeHardDelegatorRewards * refactor supply rewards in same way as borrow * fix total delegation calculation bug * fix new usdx reward bug * fix new supply/borrow reward bug * remove working comment * standardize behaviour when global factors missing * improve documentation for CalculateRewards * standardize variable names * remove panic from calculateSingleReward * wip * Tidy up comments * remove wip comment
2021-06-21 21:05:17 +00:00
// Create a new multi-reward index in the claim for every new deposit denom
Incentive refactor: hard rewards (#929) * organise testing committee gen state * remove repeated test app initialization * minor fixes from linter in tests * move more setup to SetupApp * split up KeeperTestSuite for each reward type * simplify KeeperTestSuite * simplify PayoutKeeperSuite * simplify DelegatorRewardSuite * simplify SupplyRewardsSuite * simplify BorrowRewardsSuite * simplify USDXRewardsSuite * add auth genesis builder for easier test setup * migrate all incentive tests to auth builder * add incentive genesis builder for easier setup migrate hard incentive tests * migrate all tests to incentive builder * add hard genesis builder * small tidy ups * deduplicate initialTime from borrow tests * deduplicate initialtTime from supply tests * deduplicate initialTime from usdx and keeper tests * deduplicate initialTime in delgator tests * deduplicate genesis time in payout test * deduplicate test app initialization * make authGenesisBuilder available for all modules * remove unused pricefeed setup * export incentive genesis builder * remove commented out test cases * migrate cdp test to new test state builders * migrate vv payout tests to use new builders * add SynchronizeHardBorrowReward unit test * extract calculatReward method * tidy up unit test for borrow rewards * add helper method to RewardIndexes * user helper to extract logic from SyncBorrowReward * add Get methods to (Multi)RewardIndexes * replace params.Subspace in keeper to test easier * add unit tests for usdx minting * refactor InitializeUSDXMintingClaim * add unit tests for InitializeHardBorrowRewards * refactor SynchronizeUSDXMintingReward * add unit tests for UpdateHardBorrowIndexDenoms * change rewardSource type to Dec needed by delegation rewards * fix typo in test names * refactor UpdateHardBorrowIndexDenoms * update genesis test TODO to use auth builder * add skipped test for bug in usdx sync * extract common method for calculating rewards * doc comment tidy * add unit tests for delegator rewards * tidy up test files * remove old TODOs * reaarrange InitializeHardDelegatorReward to fit with other init reward functions * duplicate borrow unit tests to create supply tests * add tests for syncing with zero rewards per second * refactor SynchronizeHardDelegatorRewards * refactor supply rewards in same way as borrow * fix total delegation calculation bug * fix new usdx reward bug * fix new supply/borrow reward bug * remove working comment * standardize behaviour when global factors missing * improve documentation for CalculateRewards * standardize variable names * remove panic from calculateSingleReward * wip * Tidy up comments * remove wip comment
2021-06-21 21:05:17 +00:00
uniqueDepositDenoms := setDifference(depositDenoms, supplyRewardIndexDenoms)
for _, denom := range uniqueDepositDenoms {
Incentive refactor: hard rewards (#929) * organise testing committee gen state * remove repeated test app initialization * minor fixes from linter in tests * move more setup to SetupApp * split up KeeperTestSuite for each reward type * simplify KeeperTestSuite * simplify PayoutKeeperSuite * simplify DelegatorRewardSuite * simplify SupplyRewardsSuite * simplify BorrowRewardsSuite * simplify USDXRewardsSuite * add auth genesis builder for easier test setup * migrate all incentive tests to auth builder * add incentive genesis builder for easier setup migrate hard incentive tests * migrate all tests to incentive builder * add hard genesis builder * small tidy ups * deduplicate initialTime from borrow tests * deduplicate initialtTime from supply tests * deduplicate initialTime from usdx and keeper tests * deduplicate initialTime in delgator tests * deduplicate genesis time in payout test * deduplicate test app initialization * make authGenesisBuilder available for all modules * remove unused pricefeed setup * export incentive genesis builder * remove commented out test cases * migrate cdp test to new test state builders * migrate vv payout tests to use new builders * add SynchronizeHardBorrowReward unit test * extract calculatReward method * tidy up unit test for borrow rewards * add helper method to RewardIndexes * user helper to extract logic from SyncBorrowReward * add Get methods to (Multi)RewardIndexes * replace params.Subspace in keeper to test easier * add unit tests for usdx minting * refactor InitializeUSDXMintingClaim * add unit tests for InitializeHardBorrowRewards * refactor SynchronizeUSDXMintingReward * add unit tests for UpdateHardBorrowIndexDenoms * change rewardSource type to Dec needed by delegation rewards * fix typo in test names * refactor UpdateHardBorrowIndexDenoms * update genesis test TODO to use auth builder * add skipped test for bug in usdx sync * extract common method for calculating rewards * doc comment tidy * add unit tests for delegator rewards * tidy up test files * remove old TODOs * reaarrange InitializeHardDelegatorReward to fit with other init reward functions * duplicate borrow unit tests to create supply tests * add tests for syncing with zero rewards per second * refactor SynchronizeHardDelegatorRewards * refactor supply rewards in same way as borrow * fix total delegation calculation bug * fix new usdx reward bug * fix new supply/borrow reward bug * remove working comment * standardize behaviour when global factors missing * improve documentation for CalculateRewards * standardize variable names * remove panic from calculateSingleReward * wip * Tidy up comments * remove wip comment
2021-06-21 21:05:17 +00:00
globalSupplyRewardIndexes, found := k.GetHardSupplyRewardIndexes(ctx, denom)
if !found {
globalSupplyRewardIndexes = types.RewardIndexes{}
}
Incentive refactor: hard rewards (#929) * organise testing committee gen state * remove repeated test app initialization * minor fixes from linter in tests * move more setup to SetupApp * split up KeeperTestSuite for each reward type * simplify KeeperTestSuite * simplify PayoutKeeperSuite * simplify DelegatorRewardSuite * simplify SupplyRewardsSuite * simplify BorrowRewardsSuite * simplify USDXRewardsSuite * add auth genesis builder for easier test setup * migrate all incentive tests to auth builder * add incentive genesis builder for easier setup migrate hard incentive tests * migrate all tests to incentive builder * add hard genesis builder * small tidy ups * deduplicate initialTime from borrow tests * deduplicate initialtTime from supply tests * deduplicate initialTime from usdx and keeper tests * deduplicate initialTime in delgator tests * deduplicate genesis time in payout test * deduplicate test app initialization * make authGenesisBuilder available for all modules * remove unused pricefeed setup * export incentive genesis builder * remove commented out test cases * migrate cdp test to new test state builders * migrate vv payout tests to use new builders * add SynchronizeHardBorrowReward unit test * extract calculatReward method * tidy up unit test for borrow rewards * add helper method to RewardIndexes * user helper to extract logic from SyncBorrowReward * add Get methods to (Multi)RewardIndexes * replace params.Subspace in keeper to test easier * add unit tests for usdx minting * refactor InitializeUSDXMintingClaim * add unit tests for InitializeHardBorrowRewards * refactor SynchronizeUSDXMintingReward * add unit tests for UpdateHardBorrowIndexDenoms * change rewardSource type to Dec needed by delegation rewards * fix typo in test names * refactor UpdateHardBorrowIndexDenoms * update genesis test TODO to use auth builder * add skipped test for bug in usdx sync * extract common method for calculating rewards * doc comment tidy * add unit tests for delegator rewards * tidy up test files * remove old TODOs * reaarrange InitializeHardDelegatorReward to fit with other init reward functions * duplicate borrow unit tests to create supply tests * add tests for syncing with zero rewards per second * refactor SynchronizeHardDelegatorRewards * refactor supply rewards in same way as borrow * fix total delegation calculation bug * fix new usdx reward bug * fix new supply/borrow reward bug * remove working comment * standardize behaviour when global factors missing * improve documentation for CalculateRewards * standardize variable names * remove panic from calculateSingleReward * wip * Tidy up comments * remove wip comment
2021-06-21 21:05:17 +00:00
supplyRewardIndexes = supplyRewardIndexes.With(denom, globalSupplyRewardIndexes)
}
// Delete multi-reward index from claim if the collateral type is no longer deposited
Incentive refactor: hard rewards (#929) * organise testing committee gen state * remove repeated test app initialization * minor fixes from linter in tests * move more setup to SetupApp * split up KeeperTestSuite for each reward type * simplify KeeperTestSuite * simplify PayoutKeeperSuite * simplify DelegatorRewardSuite * simplify SupplyRewardsSuite * simplify BorrowRewardsSuite * simplify USDXRewardsSuite * add auth genesis builder for easier test setup * migrate all incentive tests to auth builder * add incentive genesis builder for easier setup migrate hard incentive tests * migrate all tests to incentive builder * add hard genesis builder * small tidy ups * deduplicate initialTime from borrow tests * deduplicate initialtTime from supply tests * deduplicate initialTime from usdx and keeper tests * deduplicate initialTime in delgator tests * deduplicate genesis time in payout test * deduplicate test app initialization * make authGenesisBuilder available for all modules * remove unused pricefeed setup * export incentive genesis builder * remove commented out test cases * migrate cdp test to new test state builders * migrate vv payout tests to use new builders * add SynchronizeHardBorrowReward unit test * extract calculatReward method * tidy up unit test for borrow rewards * add helper method to RewardIndexes * user helper to extract logic from SyncBorrowReward * add Get methods to (Multi)RewardIndexes * replace params.Subspace in keeper to test easier * add unit tests for usdx minting * refactor InitializeUSDXMintingClaim * add unit tests for InitializeHardBorrowRewards * refactor SynchronizeUSDXMintingReward * add unit tests for UpdateHardBorrowIndexDenoms * change rewardSource type to Dec needed by delegation rewards * fix typo in test names * refactor UpdateHardBorrowIndexDenoms * update genesis test TODO to use auth builder * add skipped test for bug in usdx sync * extract common method for calculating rewards * doc comment tidy * add unit tests for delegator rewards * tidy up test files * remove old TODOs * reaarrange InitializeHardDelegatorReward to fit with other init reward functions * duplicate borrow unit tests to create supply tests * add tests for syncing with zero rewards per second * refactor SynchronizeHardDelegatorRewards * refactor supply rewards in same way as borrow * fix total delegation calculation bug * fix new usdx reward bug * fix new supply/borrow reward bug * remove working comment * standardize behaviour when global factors missing * improve documentation for CalculateRewards * standardize variable names * remove panic from calculateSingleReward * wip * Tidy up comments * remove wip comment
2021-06-21 21:05:17 +00:00
uniqueSupplyRewardDenoms := setDifference(supplyRewardIndexDenoms, depositDenoms)
for _, denom := range uniqueSupplyRewardDenoms {
supplyRewardIndexes = supplyRewardIndexes.RemoveRewardIndex(denom)
}
claim.SupplyRewardIndexes = supplyRewardIndexes
k.SetHardLiquidityProviderClaim(ctx, claim)
}
// SynchronizeHardLiquidityProviderClaim adds any accumulated rewards
func (k Keeper) SynchronizeHardLiquidityProviderClaim(ctx sdk.Context, owner sdk.AccAddress) {
// Synchronize any hard liquidity supply-side rewards
deposit, foundDeposit := k.hardKeeper.GetDeposit(ctx, owner)
if foundDeposit {
k.SynchronizeHardSupplyReward(ctx, deposit)
}
// Synchronize any hard liquidity borrow-side rewards
borrow, foundBorrow := k.hardKeeper.GetBorrow(ctx, owner)
if foundBorrow {
k.SynchronizeHardBorrowReward(ctx, borrow)
}
}
// SimulateHardSynchronization calculates a user's outstanding hard rewards by simulating reward synchronization
func (k Keeper) SimulateHardSynchronization(ctx sdk.Context, claim types.HardLiquidityProviderClaim) types.HardLiquidityProviderClaim {
// 1. Simulate Hard supply-side rewards
for _, ri := range claim.SupplyRewardIndexes {
globalRewardIndexes, foundGlobalRewardIndexes := k.GetHardSupplyRewardIndexes(ctx, ri.CollateralType)
if !foundGlobalRewardIndexes {
continue
}
userRewardIndexes, foundUserRewardIndexes := claim.SupplyRewardIndexes.GetRewardIndex(ri.CollateralType)
if !foundUserRewardIndexes {
continue
}
userRewardIndexIndex, foundUserRewardIndexIndex := claim.SupplyRewardIndexes.GetRewardIndexIndex(ri.CollateralType)
if !foundUserRewardIndexIndex {
continue
}
for _, globalRewardIndex := range globalRewardIndexes {
userRewardIndex, foundUserRewardIndex := userRewardIndexes.RewardIndexes.GetRewardIndex(globalRewardIndex.CollateralType)
if !foundUserRewardIndex {
userRewardIndex = types.NewRewardIndex(globalRewardIndex.CollateralType, sdk.ZeroDec())
userRewardIndexes.RewardIndexes = append(userRewardIndexes.RewardIndexes, userRewardIndex)
claim.SupplyRewardIndexes[userRewardIndexIndex].RewardIndexes = append(claim.SupplyRewardIndexes[userRewardIndexIndex].RewardIndexes, userRewardIndex)
}
globalRewardFactor := globalRewardIndex.RewardFactor
userRewardFactor := userRewardIndex.RewardFactor
rewardsAccumulatedFactor := globalRewardFactor.Sub(userRewardFactor)
if rewardsAccumulatedFactor.IsZero() {
continue
}
deposit, found := k.hardKeeper.GetDeposit(ctx, claim.GetOwner())
if !found {
continue
}
newRewardsAmount := rewardsAccumulatedFactor.Mul(deposit.Amount.AmountOf(ri.CollateralType).ToDec()).RoundInt()
if newRewardsAmount.IsZero() || newRewardsAmount.IsNegative() {
continue
}
factorIndex, foundFactorIndex := userRewardIndexes.RewardIndexes.GetFactorIndex(globalRewardIndex.CollateralType)
if !foundFactorIndex {
continue
}
claim.SupplyRewardIndexes[userRewardIndexIndex].RewardIndexes[factorIndex].RewardFactor = globalRewardIndex.RewardFactor
newRewardsCoin := sdk.NewCoin(userRewardIndex.CollateralType, newRewardsAmount)
claim.Reward = claim.Reward.Add(newRewardsCoin)
}
}
// 2. Simulate Hard borrow-side rewards
for _, ri := range claim.BorrowRewardIndexes {
globalRewardIndexes, foundGlobalRewardIndexes := k.GetHardBorrowRewardIndexes(ctx, ri.CollateralType)
if !foundGlobalRewardIndexes {
continue
}
userRewardIndexes, foundUserRewardIndexes := claim.BorrowRewardIndexes.GetRewardIndex(ri.CollateralType)
if !foundUserRewardIndexes {
continue
}
userRewardIndexIndex, foundUserRewardIndexIndex := claim.BorrowRewardIndexes.GetRewardIndexIndex(ri.CollateralType)
if !foundUserRewardIndexIndex {
continue
}
for _, globalRewardIndex := range globalRewardIndexes {
userRewardIndex, foundUserRewardIndex := userRewardIndexes.RewardIndexes.GetRewardIndex(globalRewardIndex.CollateralType)
if !foundUserRewardIndex {
userRewardIndex = types.NewRewardIndex(globalRewardIndex.CollateralType, sdk.ZeroDec())
userRewardIndexes.RewardIndexes = append(userRewardIndexes.RewardIndexes, userRewardIndex)
claim.BorrowRewardIndexes[userRewardIndexIndex].RewardIndexes = append(claim.BorrowRewardIndexes[userRewardIndexIndex].RewardIndexes, userRewardIndex)
}
globalRewardFactor := globalRewardIndex.RewardFactor
userRewardFactor := userRewardIndex.RewardFactor
rewardsAccumulatedFactor := globalRewardFactor.Sub(userRewardFactor)
if rewardsAccumulatedFactor.IsZero() {
continue
}
borrow, found := k.hardKeeper.GetBorrow(ctx, claim.GetOwner())
if !found {
continue
}
newRewardsAmount := rewardsAccumulatedFactor.Mul(borrow.Amount.AmountOf(ri.CollateralType).ToDec()).RoundInt()
if newRewardsAmount.IsZero() || newRewardsAmount.IsNegative() {
continue
}
factorIndex, foundFactorIndex := userRewardIndexes.RewardIndexes.GetFactorIndex(globalRewardIndex.CollateralType)
if !foundFactorIndex {
continue
}
claim.BorrowRewardIndexes[userRewardIndexIndex].RewardIndexes[factorIndex].RewardFactor = globalRewardIndex.RewardFactor
newRewardsCoin := sdk.NewCoin(userRewardIndex.CollateralType, newRewardsAmount)
claim.Reward = claim.Reward.Add(newRewardsCoin)
}
}
return claim
}
// Set setDifference: A - B
func setDifference(a, b []string) (diff []string) {
m := make(map[string]bool)
for _, item := range b {
m[item] = true
}
for _, item := range a {
if _, ok := m[item]; !ok {
diff = append(diff, item)
}
}
return
}
func getDenoms(coins sdk.Coins) []string {
denoms := []string{}
for _, coin := range coins {
denoms = append(denoms, coin.Denom)
}
return denoms
}