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Hypothetical we-all-go-to-leb8s-when-we-go #4

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Hypothetical we-all-go-to-leb8s-when-we-go #4

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33 changes: 31 additions & 2 deletions shared/services/state/network-state.go
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Original file line number Diff line number Diff line change
Expand Up @@ -338,7 +338,8 @@ func (s *NetworkState) CalculateTrueEffectiveStakes(scaleByParticipation bool, a
node := node
wg.Go(func() error {
eligibleBorrowedEth := big.NewInt(0)
eligibleBondedEth := big.NewInt(0)
eb16s := 0
eb8s := 0
for _, mpd := range s.MinipoolDetailsByNode[node.NodeAddress] {
// It must exist and be staking
if mpd.Exists && mpd.Status == types.Staking {
Expand All @@ -365,7 +366,13 @@ func (s *NetworkState) CalculateTrueEffectiveStakes(scaleByParticipation bool, a
}
// It's eligible, so add up the borrowed and bonded amounts
eligibleBorrowedEth.Add(eligibleBorrowedEth, mpd.UserDepositBalance)
eligibleBondedEth.Add(eligibleBondedEth, mpd.NodeDepositBalance)

if mpd.NodeDepositBalance.Cmp(eth.EthToWei(8)) == 0 {
eb8s++
} else if mpd.NodeDepositBalance.Cmp(eth.EthToWei(16)) == 0 {
eb16s++
}

}
}

Expand All @@ -384,6 +391,28 @@ func (s *NetworkState) CalculateTrueEffectiveStakes(scaleByParticipation bool, a
stakedRplValueInEth := big.NewInt(0).Mul(nodeStake, s.NetworkDetails.RplPrice)
stakedRplValueInEth.Div(stakedRplValueInEth, big.NewInt(1e18))

// Adjust eligibleBorrowedEth to find the hypothetical borrowed eth
// assuming that all eb16 minipools will be migrated to leb8s should there be enough
// collateral available to do so.

// How much additional eth can be borrowed by bond reduction?
// Each eb16 can be converted into 2 leb8s. That converts 16 borrowed into 48 borrowed, net
// difference of 32.
maxReductionBorrow := big.NewInt(0).Mul(big.NewInt(int64(eb16s)), eth.EthToWei(32))
maxReductionBorrow.Add(maxReductionBorrow, eligibleBorrowedEth)

// How much additional borrowing can we do based on our rpl stake?
// The limit is rpl_stake_in_eth * 10
maxBorrow := big.NewInt(0).Mul(stakedRplValueInEth, big.NewInt(10))
// We can only borrow in 8 eth increments so divmul
maxBorrow.Mul(maxBorrow.Div(maxBorrow, eth.EthToWei(8)), eth.EthToWei(8))
// Take the lower of the two numbers and use it as our eligibleBorrowedEth
if maxBorrow.Cmp(maxReductionBorrow) > 0 {
eligibleBorrowedEth.Set(maxReductionBorrow)
} else {
eligibleBorrowedEth.Set(maxBorrow)
}

// If between (inclusive 0.1 and 0.15, weight is just 100 * staked_rpl_value_in_eth
// we already know we're above 10% of borrowed.
midCollateral := big.NewInt(0).Mul(eligibleBorrowedEth, big.NewInt(150000000000000000))
Expand Down