generator-impl-v6-rolling.go

package rewards

import (
	"context"
	"fmt"
	"math/big"
	"sort"
	"time"

	"github.com/ethereum/go-ethereum/accounts/abi/bind"
	"github.com/ethereum/go-ethereum/common"
	"github.com/ethereum/go-ethereum/core/types"
	"github.com/rocket-pool/rocketpool-go/rocketpool"
	tnsettings "github.com/rocket-pool/rocketpool-go/settings/trustednode"
	"github.com/rocket-pool/rocketpool-go/utils/eth"
	"github.com/rocket-pool/smartnode/shared/services/beacon"
	"github.com/rocket-pool/smartnode/shared/services/config"
	"github.com/rocket-pool/smartnode/shared/services/state"
	"github.com/rocket-pool/smartnode/shared/utils/log"
)

// Implementation for tree generator ruleset v6 with rolling record support
type treeGeneratorImpl_v6_rolling struct {
	networkState         *state.NetworkState
	rewardsFile          *RewardsFile_v1
	elSnapshotHeader     *types.Header
	log                  *log.ColorLogger
	logPrefix            string
	rp                   *rocketpool.RocketPool
	cfg                  *config.RocketPoolConfig
	bc                   beacon.Client
	opts                 *bind.CallOpts
	smoothingPoolBalance *big.Int
	intervalDutiesInfo   *IntervalDutiesInfo
	slotsPerEpoch        uint64
	validatorIndexMap    map[string]*MinipoolInfo
	elStartTime          time.Time
	elEndTime            time.Time
	validNetworkCache    map[uint64]bool
	epsilon              *big.Int
	intervalSeconds      *big.Int
	beaconConfig         beacon.Eth2Config
	zero                 *big.Int
	rollingRecord        *RollingRecord
	nodeDetails          map[common.Address]*NodeSmoothingDetails
}

// Create a new tree generator
func newTreeGeneratorImpl_v6_rolling(log *log.ColorLogger, logPrefix string, index uint64, startTime time.Time, endTime time.Time, consensusBlock uint64, elSnapshotHeader *types.Header, intervalsPassed uint64, state *state.NetworkState, rollingRecord *RollingRecord) *treeGeneratorImpl_v6_rolling {
	return &treeGeneratorImpl_v6_rolling{
		zero: big.NewInt(0),
		rewardsFile: &RewardsFile_v1{
			RewardsFileHeader: &RewardsFileHeader{
				RewardsFileVersion:  1,
				RulesetVersion:      6,
				Index:               index,
				StartTime:           startTime.UTC(),
				EndTime:             endTime.UTC(),
				ConsensusEndBlock:   consensusBlock,
				ExecutionEndBlock:   elSnapshotHeader.Number.Uint64(),
				IntervalsPassed:     intervalsPassed,
				InvalidNetworkNodes: map[common.Address]uint64{},
				TotalRewards: &TotalRewards{
					ProtocolDaoRpl:               NewQuotedBigInt(0),
					TotalCollateralRpl:           NewQuotedBigInt(0),
					TotalOracleDaoRpl:            NewQuotedBigInt(0),
					TotalSmoothingPoolEth:        NewQuotedBigInt(0),
					PoolStakerSmoothingPoolEth:   NewQuotedBigInt(0),
					NodeOperatorSmoothingPoolEth: NewQuotedBigInt(0),
				},
				NetworkRewards: map[uint64]*NetworkRewardsInfo{},
			},
			NodeRewards: map[common.Address]*NodeRewardsInfo_v1{},
			MinipoolPerformanceFile: MinipoolPerformanceFile_v1{
				Index:               index,
				StartTime:           startTime.UTC(),
				EndTime:             endTime.UTC(),
				ConsensusEndBlock:   consensusBlock,
				ExecutionEndBlock:   elSnapshotHeader.Number.Uint64(),
				MinipoolPerformance: map[common.Address]*SmoothingPoolMinipoolPerformance_v1{},
			},
		},
		validatorIndexMap: map[string]*MinipoolInfo{},
		elSnapshotHeader:  elSnapshotHeader,
		log:               log,
		logPrefix:         logPrefix,
		networkState:      state,
		rollingRecord:     rollingRecord,
	}
}

// Get the version of the ruleset used by this generator
func (r *treeGeneratorImpl_v6_rolling) getRulesetVersion() uint64 {
	return r.rewardsFile.RulesetVersion
}

func (r *treeGeneratorImpl_v6_rolling) generateTree(rp *rocketpool.RocketPool, cfg *config.RocketPoolConfig, bc beacon.Client) (IRewardsFile, error) {

	r.log.Printlnf("%s Generating tree using Ruleset v%d.", r.logPrefix, r.rewardsFile.RulesetVersion)

	// Provision some struct params
	r.rp = rp
	r.cfg = cfg
	r.bc = bc
	r.validNetworkCache = map[uint64]bool{
		0: true,
	}

	// Set the network name
	r.rewardsFile.Network = fmt.Sprint(cfg.Smartnode.Network.Value)
	r.rewardsFile.MinipoolPerformanceFile.Network = r.rewardsFile.Network

	// Get the Beacon config
	r.beaconConfig = r.networkState.BeaconConfig
	r.slotsPerEpoch = r.beaconConfig.SlotsPerEpoch

	// Set the EL client call opts
	r.opts = &bind.CallOpts{
		BlockNumber: r.elSnapshotHeader.Number,
	}

	r.log.Printlnf("%s Creating tree for %d nodes", r.logPrefix, len(r.networkState.NodeDetails))

	// Get the minipool count - this will be used for an error epsilon due to division truncation
	minipoolCount := uint64(len(r.networkState.MinipoolDetails))
	r.epsilon = big.NewInt(int64(minipoolCount))

	// Calculate the RPL rewards
	err := r.calculateRplRewards()
	if err != nil {
		return nil, fmt.Errorf("Error calculating RPL rewards: %w", err)
	}

	// Calculate the ETH rewards
	err = r.calculateEthRewards(true)
	if err != nil {
		return nil, fmt.Errorf("Error calculating ETH rewards: %w", err)
	}

	// Calculate the network reward map and the totals
	r.updateNetworksAndTotals()

	// Generate the Merkle Tree
	err = r.rewardsFile.generateMerkleTree()
	if err != nil {
		return nil, fmt.Errorf("Error generating Merkle tree: %w", err)
	}

	// Sort all of the missed attestations so the files are always generated in the same state
	for _, minipoolInfo := range r.rewardsFile.MinipoolPerformanceFile.MinipoolPerformance {
		sort.Slice(minipoolInfo.MissingAttestationSlots, func(i, j int) bool {
			return minipoolInfo.MissingAttestationSlots[i] < minipoolInfo.MissingAttestationSlots[j]
		})
	}

	return r.rewardsFile, nil

}

// Quickly calculates an approximate of the staker's share of the smoothing pool balance without processing Beacon performance
// Used for approximate returns in the rETH ratio update
func (r *treeGeneratorImpl_v6_rolling) approximateStakerShareOfSmoothingPool(rp *rocketpool.RocketPool, cfg *config.RocketPoolConfig, bc beacon.Client) (*big.Int, error) {
	r.log.Printlnf("%s Approximating tree using Ruleset v%d.", r.logPrefix, r.rewardsFile.RulesetVersion)

	r.rp = rp
	r.cfg = cfg
	r.bc = bc
	r.validNetworkCache = map[uint64]bool{
		0: true,
	}

	// Set the network name
	r.rewardsFile.Network = fmt.Sprint(cfg.Smartnode.Network.Value)
	r.rewardsFile.MinipoolPerformanceFile.Network = r.rewardsFile.Network

	// Get the Beacon config
	r.beaconConfig = r.networkState.BeaconConfig
	r.slotsPerEpoch = r.beaconConfig.SlotsPerEpoch

	// Set the EL client call opts
	r.opts = &bind.CallOpts{
		BlockNumber: r.elSnapshotHeader.Number,
	}

	r.log.Printlnf("%s Creating tree for %d nodes", r.logPrefix, len(r.networkState.NodeDetails))

	// Get the minipool count - this will be used for an error epsilon due to division truncation
	minipoolCount := uint64(len(r.networkState.MinipoolDetails))
	r.epsilon = big.NewInt(int64(minipoolCount))

	// Calculate the ETH rewards
	err := r.calculateEthRewards(false)
	if err != nil {
		return nil, fmt.Errorf("error calculating ETH rewards: %w", err)
	}

	return &r.rewardsFile.TotalRewards.PoolStakerSmoothingPoolEth.Int, nil
}

// Calculates the per-network distribution amounts and the total reward amounts
func (r *treeGeneratorImpl_v6_rolling) updateNetworksAndTotals() {

	// Get the highest network index with valid rewards
	highestNetworkIndex := uint64(0)
	for network := range r.rewardsFile.NetworkRewards {
		if network > highestNetworkIndex {
			highestNetworkIndex = network
		}
	}

	// Create the map for each network, including unused ones
	for network := uint64(0); network <= highestNetworkIndex; network++ {
		rewardsForNetwork, exists := r.rewardsFile.NetworkRewards[network]
		if !exists {
			rewardsForNetwork = &NetworkRewardsInfo{
				CollateralRpl:    NewQuotedBigInt(0),
				OracleDaoRpl:     NewQuotedBigInt(0),
				SmoothingPoolEth: NewQuotedBigInt(0),
			}
			r.rewardsFile.NetworkRewards[network] = rewardsForNetwork
		}
	}

}

// Calculates the RPL rewards for the given interval
func (r *treeGeneratorImpl_v6_rolling) calculateRplRewards() error {

	pendingRewards := r.networkState.NetworkDetails.PendingRPLRewards
	nodeOpPercent := r.networkState.NetworkDetails.NodeOperatorRewardsPercent
	r.log.Printlnf("%s Pending RPL rewards: %s (%.3f)", r.logPrefix, pendingRewards.String(), eth.WeiToEth(pendingRewards))
	totalNodeRewards := big.NewInt(0)
	totalNodeRewards.Mul(pendingRewards, nodeOpPercent)
	totalNodeRewards.Div(totalNodeRewards, eth.EthToWei(1))
	r.log.Printlnf("%s Approx. total collateral RPL rewards: %s (%.3f)", r.logPrefix, totalNodeRewards.String(), eth.WeiToEth(totalNodeRewards))

	// Calculate the effective stake of each node, scaling by their participation in this interval
	trueNodeEffectiveStakes, totalNodeEffectiveStake, err := r.networkState.CalculateTrueEffectiveStakes(true, false)
	if err != nil {
		return fmt.Errorf("error calculating effective RPL stakes: %w", err)
	}

	for i, nodeDetails := range r.networkState.NodeDetails {
		// Get how much RPL goes to this node: (true effective stake) * (total node rewards) / (total true effective stake)
		nodeRplRewards := big.NewInt(0)
		nodeRplRewards.Mul(trueNodeEffectiveStakes[nodeDetails.NodeAddress], totalNodeRewards)
		nodeRplRewards.Div(nodeRplRewards, totalNodeEffectiveStake)

		// If there are pending rewards, add it to the map
		if nodeRplRewards.Cmp(r.zero) == 1 {
			rewardsForNode, exists := r.rewardsFile.NodeRewards[nodeDetails.NodeAddress]
			if !exists {
				// Get the network the rewards should go to
				network := r.networkState.NodeDetails[i].RewardNetwork.Uint64()
				validNetwork, err := r.validateNetwork(network)
				if err != nil {
					return err
				}
				if !validNetwork {
					r.rewardsFile.InvalidNetworkNodes[nodeDetails.NodeAddress] = network
					network = 0
				}

				rewardsForNode = &NodeRewardsInfo_v1{
					RewardNetwork:    network,
					CollateralRpl:    NewQuotedBigInt(0),
					OracleDaoRpl:     NewQuotedBigInt(0),
					SmoothingPoolEth: NewQuotedBigInt(0),
				}
				r.rewardsFile.NodeRewards[nodeDetails.NodeAddress] = rewardsForNode
			}
			rewardsForNode.CollateralRpl.Add(&rewardsForNode.CollateralRpl.Int, nodeRplRewards)

			// Add the rewards to the running total for the specified network
			rewardsForNetwork, exists := r.rewardsFile.NetworkRewards[rewardsForNode.RewardNetwork]
			if !exists {
				rewardsForNetwork = &NetworkRewardsInfo{
					CollateralRpl:    NewQuotedBigInt(0),
					OracleDaoRpl:     NewQuotedBigInt(0),
					SmoothingPoolEth: NewQuotedBigInt(0),
				}
				r.rewardsFile.NetworkRewards[rewardsForNode.RewardNetwork] = rewardsForNetwork
			}
			rewardsForNetwork.CollateralRpl.Add(&rewardsForNetwork.CollateralRpl.Int, nodeRplRewards)
		}
	}

	// Sanity check to make sure we arrived at the correct total
	delta := big.NewInt(0)
	totalCalculatedNodeRewards := big.NewInt(0)
	for _, networkRewards := range r.rewardsFile.NetworkRewards {
		totalCalculatedNodeRewards.Add(totalCalculatedNodeRewards, &networkRewards.CollateralRpl.Int)
	}
	delta.Sub(totalNodeRewards, totalCalculatedNodeRewards).Abs(delta)
	if delta.Cmp(r.epsilon) == 1 {
		return fmt.Errorf("error calculating collateral RPL: total was %s, but expected %s; error was too large", totalCalculatedNodeRewards.String(), totalNodeRewards.String())
	}
	r.rewardsFile.TotalRewards.TotalCollateralRpl.Int = *totalCalculatedNodeRewards
	r.log.Printlnf("%s Calculated rewards:           %s (error = %s wei)", r.logPrefix, totalCalculatedNodeRewards.String(), delta.String())

	// Handle Oracle DAO rewards
	oDaoPercent := r.networkState.NetworkDetails.TrustedNodeOperatorRewardsPercent
	totalODaoRewards := big.NewInt(0)
	totalODaoRewards.Mul(pendingRewards, oDaoPercent)
	totalODaoRewards.Div(totalODaoRewards, eth.EthToWei(1))
	r.log.Printlnf("%s Total Oracle DAO RPL rewards: %s (%.3f)", r.logPrefix, totalODaoRewards.String(), eth.WeiToEth(totalODaoRewards))

	oDaoDetails := r.networkState.OracleDaoMemberDetails

	// Calculate the true effective time of each oDAO node based on their participation in this interval
	totalODaoNodeTime := big.NewInt(0)
	trueODaoNodeTimes := map[common.Address]*big.Int{}
	for _, details := range oDaoDetails {
		// Get the timestamp of the node joining the oDAO
		joinTime := details.JoinedTime

		// Get the actual effective time, scaled based on participation
		intervalDuration := r.networkState.NetworkDetails.IntervalDuration
		intervalDurationBig := big.NewInt(int64(intervalDuration.Seconds()))
		participationTime := big.NewInt(0).Set(intervalDurationBig)
		snapshotBlockTime := time.Unix(int64(r.elSnapshotHeader.Time), 0)
		eligibleDuration := snapshotBlockTime.Sub(joinTime)
		if eligibleDuration < intervalDuration {
			participationTime = big.NewInt(int64(eligibleDuration.Seconds()))
		}
		trueODaoNodeTimes[details.Address] = participationTime

		// Add it to the total
		totalODaoNodeTime.Add(totalODaoNodeTime, participationTime)
	}

	for _, details := range oDaoDetails {
		address := details.Address

		// Calculate the oDAO rewards for the node: (participation time) * (total oDAO rewards) / (total participation time)
		individualOdaoRewards := big.NewInt(0)
		individualOdaoRewards.Mul(trueODaoNodeTimes[address], totalODaoRewards)
		individualOdaoRewards.Div(individualOdaoRewards, totalODaoNodeTime)

		rewardsForNode, exists := r.rewardsFile.NodeRewards[address]
		if !exists {
			// Get the network the rewards should go to
			network := r.networkState.NodeDetailsByAddress[address].RewardNetwork.Uint64()
			validNetwork, err := r.validateNetwork(network)
			if err != nil {
				return err
			}
			if !validNetwork {
				r.rewardsFile.InvalidNetworkNodes[address] = network
				network = 0
			}

			rewardsForNode = &NodeRewardsInfo_v1{
				RewardNetwork:    network,
				CollateralRpl:    NewQuotedBigInt(0),
				OracleDaoRpl:     NewQuotedBigInt(0),
				SmoothingPoolEth: NewQuotedBigInt(0),
			}
			r.rewardsFile.NodeRewards[address] = rewardsForNode

		}
		rewardsForNode.OracleDaoRpl.Add(&rewardsForNode.OracleDaoRpl.Int, individualOdaoRewards)

		// Add the rewards to the running total for the specified network
		rewardsForNetwork, exists := r.rewardsFile.NetworkRewards[rewardsForNode.RewardNetwork]
		if !exists {
			rewardsForNetwork = &NetworkRewardsInfo{
				CollateralRpl:    NewQuotedBigInt(0),
				OracleDaoRpl:     NewQuotedBigInt(0),
				SmoothingPoolEth: NewQuotedBigInt(0),
			}
			r.rewardsFile.NetworkRewards[rewardsForNode.RewardNetwork] = rewardsForNetwork
		}
		rewardsForNetwork.OracleDaoRpl.Add(&rewardsForNetwork.OracleDaoRpl.Int, individualOdaoRewards)
	}

	// Sanity check to make sure we arrived at the correct total
	totalCalculatedOdaoRewards := big.NewInt(0)
	delta = big.NewInt(0)
	for _, networkRewards := range r.rewardsFile.NetworkRewards {
		totalCalculatedOdaoRewards.Add(totalCalculatedOdaoRewards, &networkRewards.OracleDaoRpl.Int)
	}
	delta.Sub(totalODaoRewards, totalCalculatedOdaoRewards).Abs(delta)
	if delta.Cmp(r.epsilon) == 1 {
		return fmt.Errorf("error calculating ODao RPL: total was %s, but expected %s; error was too large", totalCalculatedOdaoRewards.String(), totalODaoRewards.String())
	}
	r.rewardsFile.TotalRewards.TotalOracleDaoRpl.Int = *totalCalculatedOdaoRewards
	r.log.Printlnf("%s Calculated rewards:           %s (error = %s wei)", r.logPrefix, totalCalculatedOdaoRewards.String(), delta.String())

	// Get expected Protocol DAO rewards
	pDaoPercent := r.networkState.NetworkDetails.ProtocolDaoRewardsPercent
	pDaoRewards := NewQuotedBigInt(0)
	pDaoRewards.Mul(pendingRewards, pDaoPercent)
	pDaoRewards.Div(&pDaoRewards.Int, eth.EthToWei(1))
	r.log.Printlnf("%s Expected Protocol DAO rewards: %s (%.3f)", r.logPrefix, pDaoRewards.String(), eth.WeiToEth(&pDaoRewards.Int))

	// Get actual protocol DAO rewards
	pDaoRewards.Sub(pendingRewards, totalCalculatedNodeRewards)
	pDaoRewards.Sub(&pDaoRewards.Int, totalCalculatedOdaoRewards)
	r.rewardsFile.TotalRewards.ProtocolDaoRpl = pDaoRewards
	r.log.Printlnf("%s Actual Protocol DAO rewards:   %s to account for truncation", r.logPrefix, pDaoRewards.String())

	return nil

}

// Calculates the ETH rewards for the given interval
func (r *treeGeneratorImpl_v6_rolling) calculateEthRewards(checkBeaconPerformance bool) error {

	// Get the Smoothing Pool contract's balance
	r.smoothingPoolBalance = r.networkState.NetworkDetails.SmoothingPoolBalance
	r.log.Printlnf("%s Smoothing Pool Balance: %s (%.3f)", r.logPrefix, r.smoothingPoolBalance.String(), eth.WeiToEth(r.smoothingPoolBalance))

	// Ignore the ETH calculation if there are no rewards
	if r.smoothingPoolBalance.Cmp(r.zero) == 0 {
		return nil
	}

	if r.rewardsFile.Index == 0 {
		// This is the first interval, Smoothing Pool rewards are ignored on the first interval since it doesn't have a discrete start time
		return nil
	}

	// Get the EL block for the start of this interval
	startElBlockHeader, err := r.getStartBlocksForInterval()
	if err != nil {
		return err
	}

	r.elStartTime = time.Unix(int64(startElBlockHeader.Time), 0)
	r.elEndTime = time.Unix(int64(r.elSnapshotHeader.Time), 0)
	r.intervalSeconds = big.NewInt(int64(r.elEndTime.Sub(r.elStartTime) / time.Second))

	// Process the attestation performance for each minipool during this interval
	r.intervalDutiesInfo = &IntervalDutiesInfo{
		Index: r.rewardsFile.Index,
		Slots: map[uint64]*SlotInfo{},
	}

	// Determine how much ETH each node gets and how much the pool stakers get
	poolStakerETH, nodeOpEth, err := r.calculateNodeRewards()
	if err != nil {
		return err
	}

	// Update the rewards maps
	for nodeAddress, nodeInfo := range r.nodeDetails {
		if nodeInfo.SmoothingPoolEth.Cmp(r.zero) > 0 {
			rewardsForNode, exists := r.rewardsFile.NodeRewards[nodeAddress]
			if !exists {
				network := nodeInfo.RewardsNetwork
				validNetwork, err := r.validateNetwork(network)
				if err != nil {
					return err
				}
				if !validNetwork {
					r.rewardsFile.InvalidNetworkNodes[nodeAddress] = network
					network = 0
				}

				rewardsForNode = &NodeRewardsInfo_v1{
					RewardNetwork:    network,
					CollateralRpl:    NewQuotedBigInt(0),
					OracleDaoRpl:     NewQuotedBigInt(0),
					SmoothingPoolEth: NewQuotedBigInt(0),
				}
				r.rewardsFile.NodeRewards[nodeAddress] = rewardsForNode
			}
			rewardsForNode.SmoothingPoolEth.Add(&rewardsForNode.SmoothingPoolEth.Int, nodeInfo.SmoothingPoolEth)
			rewardsForNode.SmoothingPoolEligibilityRate = float64(nodeInfo.EndSlot-nodeInfo.StartSlot) / float64(r.rewardsFile.ConsensusEndBlock-r.rewardsFile.ConsensusStartBlock)

			// Add minipool rewards to the JSON
			for _, minipoolInfo := range nodeInfo.Minipools {
				successfulAttestations := uint64(minipoolInfo.AttestationCount)
				missingAttestations := uint64(len(minipoolInfo.MissingAttestationSlots))
				performance := &SmoothingPoolMinipoolPerformance_v1{
					Pubkey:                  minipoolInfo.ValidatorPubkey.Hex(),
					SuccessfulAttestations:  successfulAttestations,
					MissedAttestations:      missingAttestations,
					EthEarned:               eth.WeiToEth(minipoolInfo.MinipoolShare),
					MissingAttestationSlots: []uint64{},
				}
				if successfulAttestations+missingAttestations == 0 {
					// Don't include minipools that have zero attestations
					continue
				} else {
					performance.ParticipationRate = float64(successfulAttestations) / float64(successfulAttestations+missingAttestations)
				}
				for slot := range minipoolInfo.MissingAttestationSlots {
					performance.MissingAttestationSlots = append(performance.MissingAttestationSlots, slot)
				}
				r.rewardsFile.MinipoolPerformanceFile.MinipoolPerformance[minipoolInfo.Address] = performance
			}

			// Add the rewards to the running total for the specified network
			rewardsForNetwork, exists := r.rewardsFile.NetworkRewards[rewardsForNode.RewardNetwork]
			if !exists {
				rewardsForNetwork = &NetworkRewardsInfo{
					CollateralRpl:    NewQuotedBigInt(0),
					OracleDaoRpl:     NewQuotedBigInt(0),
					SmoothingPoolEth: NewQuotedBigInt(0),
				}
				r.rewardsFile.NetworkRewards[rewardsForNode.RewardNetwork] = rewardsForNetwork
			}
			rewardsForNetwork.SmoothingPoolEth.Add(&rewardsForNetwork.SmoothingPoolEth.Int, nodeInfo.SmoothingPoolEth)
		}
	}

	// Set the totals
	r.rewardsFile.TotalRewards.PoolStakerSmoothingPoolEth.Int = *poolStakerETH
	r.rewardsFile.TotalRewards.NodeOperatorSmoothingPoolEth.Int = *nodeOpEth
	r.rewardsFile.TotalRewards.TotalSmoothingPoolEth.Int = *r.smoothingPoolBalance
	return nil

}

// Calculate the distribution of Smoothing Pool ETH to each node
func (r *treeGeneratorImpl_v6_rolling) calculateNodeRewards() (*big.Int, *big.Int, error) {

	// Get the list of cheaters
	cheaters := r.getCheaters()

	// Get the latest scores from the rolling record
	minipools, totalScore, attestationCount := r.rollingRecord.GetScores(cheaters)

	// If there weren't any successful attestations, everything goes to the pool stakers
	if totalScore.Cmp(r.zero) == 0 || attestationCount == 0 {
		r.log.Printlnf("WARNING: Total attestation score = %s, successful attestations = %d... sending the whole smoothing pool balance to the pool stakers.", totalScore.String(), attestationCount)
		return r.smoothingPoolBalance, big.NewInt(0), nil
	}

	totalEthForMinipools := big.NewInt(0)
	totalNodeOpShare := big.NewInt(0)
	totalNodeOpShare.Mul(r.smoothingPoolBalance, totalScore)
	totalNodeOpShare.Div(totalNodeOpShare, big.NewInt(int64(attestationCount)))
	totalNodeOpShare.Div(totalNodeOpShare, eth.EthToWei(1))

	r.nodeDetails = map[common.Address]*NodeSmoothingDetails{}
	for _, minipool := range minipools {
		// Get the node amount
		nodeInfo, exists := r.nodeDetails[minipool.NodeAddress]
		if !exists {
			nodeInfo = &NodeSmoothingDetails{
				Minipools:        []*MinipoolInfo{},
				SmoothingPoolEth: big.NewInt(0),
				RewardsNetwork:   r.networkState.NodeDetailsByAddress[minipool.NodeAddress].RewardNetwork.Uint64(),
			}
			r.nodeDetails[minipool.NodeAddress] = nodeInfo
		}
		nodeInfo.Minipools = append(nodeInfo.Minipools, minipool)

		// Add the minipool's score to the total node score
		minipoolEth := big.NewInt(0).Set(totalNodeOpShare)
		minipoolEth.Mul(minipoolEth, &minipool.AttestationScore.Int)
		minipoolEth.Div(minipoolEth, totalScore)
		minipool.MinipoolShare = minipoolEth
		nodeInfo.SmoothingPoolEth.Add(nodeInfo.SmoothingPoolEth, minipoolEth)
	}

	// Add the node amounts to the total
	for _, nodeInfo := range r.nodeDetails {
		totalEthForMinipools.Add(totalEthForMinipools, nodeInfo.SmoothingPoolEth)
	}

	// This is how much actually goes to the pool stakers - it should ideally be equal to poolStakerShare but this accounts for any cumulative floating point errors
	truePoolStakerAmount := big.NewInt(0).Sub(r.smoothingPoolBalance, totalEthForMinipools)

	// Sanity check to make sure we arrived at the correct total
	delta := big.NewInt(0).Sub(totalEthForMinipools, totalNodeOpShare)
	delta.Abs(delta)
	if delta.Cmp(r.epsilon) == 1 {
		return nil, nil, fmt.Errorf("error calculating smoothing pool ETH: total was %s, but expected %s; error was too large (%s wei)", totalEthForMinipools.String(), totalNodeOpShare.String(), delta.String())
	}

	// Calculate the staking pool share and the node op share
	poolStakerShare := big.NewInt(0).Sub(r.smoothingPoolBalance, totalNodeOpShare)

	r.log.Printlnf("%s Pool staker ETH:    %s (%.3f)", r.logPrefix, poolStakerShare.String(), eth.WeiToEth(poolStakerShare))
	r.log.Printlnf("%s Node Op ETH:        %s (%.3f)", r.logPrefix, totalNodeOpShare.String(), eth.WeiToEth(totalNodeOpShare))
	r.log.Printlnf("%s Calculated NO ETH:  %s (error = %s wei)", r.logPrefix, totalEthForMinipools.String(), delta.String())
	r.log.Printlnf("%s Adjusting pool staker ETH to %s to account for truncation", r.logPrefix, truePoolStakerAmount.String())

	return truePoolStakerAmount, totalEthForMinipools, nil

}

// Validates that the provided network is legal
func (r *treeGeneratorImpl_v6_rolling) validateNetwork(network uint64) (bool, error) {
	valid, exists := r.validNetworkCache[network]
	if !exists {
		var err error
		valid, err = tnsettings.GetNetworkEnabled(r.rp, big.NewInt(int64(network)), r.opts)
		if err != nil {
			return false, err
		}
		r.validNetworkCache[network] = valid
	}

	return valid, nil
}

// Gets the EL header for the given interval's start block
func (r *treeGeneratorImpl_v6_rolling) getStartBlocksForInterval() (*types.Header, error) {
	// Get the Beacon block for the start slot of the record
	r.rewardsFile.ConsensusStartBlock = r.rollingRecord.StartSlot
	r.rewardsFile.MinipoolPerformanceFile.ConsensusStartBlock = r.rollingRecord.StartSlot
	beaconBlock, exists, err := r.bc.GetBeaconBlock(fmt.Sprint(r.rollingRecord.StartSlot))
	if err != nil {
		return nil, fmt.Errorf("error verifying block from previous interval: %w", err)
	}
	if !exists {
		return nil, fmt.Errorf("couldn't retrieve CL block from previous interval (slot %d); this likely means you checkpoint sync'd your Beacon Node and it has not backfilled to the previous interval yet so it cannot be used for tree generation", r.rollingRecord.StartSlot)
	}

	// Get the EL block for that Beacon block
	elBlockNumber := beaconBlock.ExecutionBlockNumber
	r.rewardsFile.ExecutionStartBlock = elBlockNumber
	r.rewardsFile.MinipoolPerformanceFile.ExecutionStartBlock = r.rewardsFile.ExecutionStartBlock
	startElHeader, err := r.rp.Client.HeaderByNumber(context.Background(), big.NewInt(int64(elBlockNumber)))
	if err != nil {
		return nil, fmt.Errorf("error getting EL header for block %d: %w", elBlockNumber, err)
	}

	return startElHeader, nil
}

// Detect and flag any cheaters
func (r *treeGeneratorImpl_v6_rolling) getCheaters() map[common.Address]bool {
	cheatingNodes := map[common.Address]bool{}
	three := big.NewInt(3)

	for _, nd := range r.networkState.NodeDetails {
		for _, mpd := range r.networkState.MinipoolDetailsByNode[nd.NodeAddress] {
			if mpd.PenaltyCount.Cmp(three) >= 0 {
				// If any minipool has 3+ penalties, ban the entire node
				cheatingNodes[nd.NodeAddress] = true
				break
			}
		}
	}

	return cheatingNodes
}