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market_activity_tracker_snapshot.go
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market_activity_tracker_snapshot.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 execution
import (
"context"
"errors"
"sort"
checkpoint "code.vegaprotocol.io/vega/protos/vega/checkpoint/v1"
snapshot "code.vegaprotocol.io/vega/protos/vega/snapshot/v1"
"code.vegaprotocol.io/vega/core/types"
"code.vegaprotocol.io/vega/libs/num"
"code.vegaprotocol.io/vega/libs/proto"
)
var (
key = (&types.PayloadMarketActivityTracker{}).Key()
ErrSnapshotKeyDoesNotExist = errors.New("unknown key for market activity tracker snapshot")
hashKeys = []string{key}
)
type snapshotState struct {
serialised []byte
}
func (mat *MarketActivityTracker) Namespace() types.SnapshotNamespace {
return types.MarketActivityTrackerSnapshot
}
func (mat *MarketActivityTracker) Keys() []string {
return hashKeys
}
func (mat *MarketActivityTracker) Stopped() bool {
return false
}
func marketFeesToProto(partyFees map[string]*num.Uint) []*checkpoint.PartyFees {
parties := make([]string, 0, len(partyFees))
for k := range partyFees {
parties = append(parties, k)
}
sort.Strings(parties)
pf := make([]*checkpoint.PartyFees, 0, len(parties))
for _, party := range parties {
pf = append(pf, &checkpoint.PartyFees{Party: party, Fee: partyFees[party].String()})
}
return pf
}
func (mt *marketTracker) IntoProto(market string) *checkpoint.MarketActivityTracker {
paid := make([]string, 0, len(mt.proposersPaid))
for k := range mt.proposersPaid {
paid = append(paid, k)
}
sort.Strings(paid)
return &checkpoint.MarketActivityTracker{
Asset: mt.asset,
Market: market,
MakerFeesReceived: marketFeesToProto(mt.makerFeesReceived),
MakerFeesPaid: marketFeesToProto(mt.makerFeesPaid),
LpFees: marketFeesToProto(mt.lpFees),
ValueTraded: mt.valueTraded.String(),
Proposer: mt.proposer,
BonusPaid: paid,
ReadyToDelete: mt.readyToDelete,
}
}
func (mat *MarketActivityTracker) serialiseFeesTracker() *snapshot.MarketTracker {
markets := make([]string, 0, len(mat.marketToTracker))
for k := range mat.marketToTracker {
markets = append(markets, k)
}
sort.Strings(markets)
marketActivity := make([]*checkpoint.MarketActivityTracker, 0, len(markets))
for _, market := range markets {
marketActivity = append(marketActivity, mat.marketToTracker[market].IntoProto(market))
}
return &snapshot.MarketTracker{
MarketActivity: marketActivity,
}
}
// get the serialised form and hash of the given key.
func (mat *MarketActivityTracker) serialise(k string) ([]byte, error) {
if k != key {
return nil, ErrSnapshotKeyDoesNotExist
}
payload := types.Payload{
Data: &types.PayloadMarketActivityTracker{
MarketActivityData: mat.serialiseFeesTracker(),
},
}
x := payload.IntoProto()
data, err := proto.Marshal(x)
if err != nil {
return nil, err
}
mat.ss.serialised = data
return data, nil
}
func (mat *MarketActivityTracker) GetState(k string) ([]byte, []types.StateProvider, error) {
state, err := mat.serialise(k)
return state, nil, err
}
func (mat *MarketActivityTracker) LoadState(ctx context.Context, p *types.Payload) ([]types.StateProvider, error) {
if mat.Namespace() != p.Data.Namespace() {
return nil, types.ErrInvalidSnapshotNamespace
}
// see what we're reloading
switch pl := p.Data.(type) {
case *types.PayloadMarketActivityTracker:
mat.restore(pl.MarketActivityData)
var err error
mat.ss.serialised, err = proto.Marshal(p.IntoProto())
return nil, err
default:
return nil, types.ErrUnknownSnapshotType
}
}
func marketTrackerFromProto(data *checkpoint.MarketActivityTracker) *marketTracker {
valueTrades, _ := num.UintFromString(data.ValueTraded, 10)
mft := &marketTracker{
makerFeesReceived: map[string]*num.Uint{},
makerFeesPaid: map[string]*num.Uint{},
lpFees: map[string]*num.Uint{},
totalMakerFeesReceived: num.UintZero(),
totalMakerFeesPaid: num.UintZero(),
totalLPFees: num.UintZero(),
valueTraded: valueTrades,
proposer: data.Proposer,
proposersPaid: map[string]struct{}{},
asset: data.Asset,
readyToDelete: data.ReadyToDelete,
}
for _, bpfpa := range data.BonusPaid {
mft.proposersPaid[bpfpa] = struct{}{}
}
for _, mf := range data.MakerFeesReceived {
mft.makerFeesReceived[mf.Party], _ = num.UintFromString(mf.Fee, 10)
mft.totalMakerFeesReceived.AddSum(mft.makerFeesReceived[mf.Party])
}
for _, tf := range data.MakerFeesPaid {
mft.makerFeesPaid[tf.Party], _ = num.UintFromString(tf.Fee, 10)
mft.totalMakerFeesPaid.AddSum(mft.makerFeesPaid[tf.Party])
}
for _, lp := range data.LpFees {
mft.lpFees[lp.Party], _ = num.UintFromString(lp.Fee, 10)
mft.totalLPFees.AddSum(mft.lpFees[lp.Party])
}
mft.asset = data.Asset
return mft
}
func (mat *MarketActivityTracker) restore(data *snapshot.MarketTracker) {
for _, data := range data.MarketActivity {
mat.marketToTracker[data.Market] = marketTrackerFromProto(data)
}
}
// onEpochRestore is called when the state of the epoch changes, we only care about new epochs starting.
func (mat *MarketActivityTracker) onEpochRestore(_ context.Context, epoch types.Epoch) {
mat.currentEpoch = epoch.Seq
}