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contribution_reward_calculator.go
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/
contribution_reward_calculator.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.VEGA file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package rewards
import (
"time"
"code.vegaprotocol.io/vega/core/types"
"code.vegaprotocol.io/vega/libs/num"
)
// calculateRewardsByContribution calculates the reward based on the fee contribution (whether paid or received) of the parties in the asset.
func calculateRewardsByContribution(epochSeq, asset, accountID string, balance *num.Uint, participation []*types.PartyContibutionScore, timestamp time.Time) *payout {
po := &payout{
asset: asset,
fromAccount: accountID,
epochSeq: epochSeq,
timestamp: timestamp.Unix(),
partyToAmount: map[string]*num.Uint{},
}
total := num.UintZero()
rewardBalance := balance.ToDecimal()
for _, p := range participation {
partyReward, _ := num.UintFromDecimal(rewardBalance.Mul(p.Score))
if !partyReward.IsZero() {
po.partyToAmount[p.Party] = partyReward
total.AddSum(partyReward)
}
}
po.totalReward = total
if total.IsZero() {
return nil
}
return po
}