49 lines
1.8 KiB
Go
49 lines
1.8 KiB
Go
package keeper
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import (
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/distribution/types"
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)
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// Allocate fees handles distribution of the collected fees
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func (k Keeper) AllocateFees(ctx sdk.Context) {
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// get the proposer of this block
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proposerConsAddr := k.GetProposerConsAddr(ctx)
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proserValidator := k.stakeKeeper.GetValidatorFromConsAddr(ctx, proposerConsAddr)
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proposerDist := k.GetValidatorDistInfo(ctx, proserValidator.GetOperator())
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// get the fees which have been getting collected through all the
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// transactions in the block
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feesCollected := k.feeCollectionKeeper.GetCollectedFees(ctx)
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feesCollectedDec := types.NewDecCoins(feesCollected)
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// allocated rewards to proposer
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bondedTokens := k.stakeKeeper.TotalPower(ctx)
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sumPowerPrecommitValidators := sdk.NewDec(1) // XXX TODO actually calculate this
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proposerMultiplier := sdk.NewDecWithPrec(1, 2).Add(sdk.NewDecWithPrec(4, 2).Mul(
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sumPowerPrecommitValidators).Quo(bondedTokens))
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proposerReward := feesCollectedDec.Mul(proposerMultiplier)
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// apply commission
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commission := proposerReward.Mul(proserValidator.GetCommission())
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proposerDist.PoolCommission = proposerDist.PoolCommission.Add(commission)
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proposerDist.Pool = proposerDist.Pool.Add(proposerReward.Sub(commission))
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// allocate community funding
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communityTax := k.GetCommunityTax(ctx)
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communityFunding := feesCollectedDec.Mul(communityTax)
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feePool := k.GetFeePool(ctx)
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feePool.CommunityPool = feePool.CommunityPool.Add(communityFunding)
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// set the global pool within the distribution module
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poolReceived := feesCollectedDec.Mul(sdk.OneDec().Sub(proposerMultiplier).Sub(communityTax))
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feePool.Pool = feePool.Pool.Plus(poolReceived)
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k.SetValidatorDistInfo(ctx, proposerDist)
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k.SetFeePool(ctx, feePool)
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// clear the now distributed fees
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k.feeCollectionKeeper.ClearCollectedFees(ctx)
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}
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