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margin_levels.go
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margin_levels.go
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// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package sqlstore
import (
"context"
"fmt"
"code.vegaprotocol.io/vega/datanode/entities"
"code.vegaprotocol.io/vega/datanode/metrics"
v2 "code.vegaprotocol.io/vega/protos/data-node/api/v2"
"github.com/georgysavva/scany/pgxscan"
)
var mlOrdering = TableOrdering{
ColumnOrdering{Name: "vega_time", Sorting: ASC},
ColumnOrdering{Name: "account_id", Sorting: ASC},
}
type AccountSource interface {
Query(filter entities.AccountFilter) ([]entities.Account, error)
}
type MarginLevels struct {
*ConnectionSource
batcher MapBatcher[entities.MarginLevelsKey, entities.MarginLevels]
}
const (
sqlMarginLevelColumns = `account_id,order_margin_account_id,timestamp,maintenance_margin,search_level,initial_margin,collateral_release_level,order_margin,tx_hash,vega_time,margin_mode,margin_factor`
)
func NewMarginLevels(connectionSource *ConnectionSource) *MarginLevels {
return &MarginLevels{
ConnectionSource: connectionSource,
batcher: NewMapBatcher[entities.MarginLevelsKey, entities.MarginLevels](
"margin_levels",
entities.MarginLevelsColumns),
}
}
func (ml *MarginLevels) Add(marginLevel entities.MarginLevels) error {
ml.batcher.Add(marginLevel)
return nil
}
func (ml *MarginLevels) Flush(ctx context.Context) ([]entities.MarginLevels, error) {
defer metrics.StartSQLQuery("MarginLevels", "Flush")()
return ml.batcher.Flush(ctx, ml.Connection)
}
func buildAccountWhereClause(partyID, marketID string) (string, []interface{}) {
party := entities.PartyID(partyID)
market := entities.MarketID(marketID)
var bindVars []interface{}
whereParty := ""
if partyID != "" {
whereParty = fmt.Sprintf("party_id = %s", nextBindVar(&bindVars, party))
}
whereMarket := ""
if marketID != "" {
whereMarket = fmt.Sprintf("market_id = %s", nextBindVar(&bindVars, market))
}
accountsWhereClause := ""
if whereParty != "" && whereMarket != "" {
accountsWhereClause = fmt.Sprintf("where %s and %s", whereParty, whereMarket)
} else if whereParty != "" {
accountsWhereClause = fmt.Sprintf("where %s", whereParty)
} else if whereMarket != "" {
accountsWhereClause = fmt.Sprintf("where %s", whereMarket)
}
return fmt.Sprintf("where current_margin_levels.account_id in (select id from accounts %s)", accountsWhereClause), bindVars
}
func (ml *MarginLevels) GetMarginLevelsByIDWithCursorPagination(ctx context.Context, partyID, marketID string, pagination entities.CursorPagination) ([]entities.MarginLevels, entities.PageInfo, error) {
whereClause, bindVars := buildAccountWhereClause(partyID, marketID)
query := fmt.Sprintf(`select %s
from current_margin_levels
%s`, sqlMarginLevelColumns,
whereClause)
var err error
var pageInfo entities.PageInfo
query, bindVars, err = PaginateQuery[entities.MarginCursor](query, bindVars, mlOrdering, pagination)
if err != nil {
return nil, pageInfo, err
}
var marginLevels []entities.MarginLevels
if err = pgxscan.Select(ctx, ml.Connection, &marginLevels, query, bindVars...); err != nil {
return nil, entities.PageInfo{}, err
}
pagedMargins, pageInfo := entities.PageEntities[*v2.MarginEdge](marginLevels, pagination)
return pagedMargins, pageInfo, nil
}
func (ml *MarginLevels) GetByTxHash(ctx context.Context, txHash entities.TxHash) ([]entities.MarginLevels, error) {
var marginLevels []entities.MarginLevels
query := fmt.Sprintf(`SELECT %s FROM margin_levels WHERE tx_hash = $1`, sqlMarginLevelColumns)
if err := pgxscan.Select(ctx, ml.Connection, &marginLevels, query, txHash); err != nil {
return nil, err
}
return marginLevels, nil
}