bbgo_origin/pkg/service/order.go

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package service
import (
"context"
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"strconv"
"strings"
"time"
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"github.com/jmoiron/sqlx"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
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"github.com/c9s/bbgo/pkg/exchange/batch"
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"github.com/c9s/bbgo/pkg/types"
)
type OrderService struct {
DB *sqlx.DB
}
func (s *OrderService) Sync(ctx context.Context, exchange types.Exchange, symbol string, startTime time.Time) error {
isMargin := false
isFutures := false
isIsolated := false
if marginExchange, ok := exchange.(types.MarginExchange); ok {
marginSettings := marginExchange.GetMarginSettings()
isMargin = marginSettings.IsMargin
isIsolated = marginSettings.IsIsolatedMargin
if marginSettings.IsIsolatedMargin {
symbol = marginSettings.IsolatedMarginSymbol
}
}
if futuresExchange, ok := exchange.(types.FuturesExchange); ok {
futuresSettings := futuresExchange.GetFuturesSettings()
isFutures = futuresSettings.IsFutures
isIsolated = futuresSettings.IsIsolatedFutures
if futuresSettings.IsIsolatedFutures {
symbol = futuresSettings.IsolatedFuturesSymbol
}
}
records, err := s.QueryLast(exchange.Name(), symbol, isMargin, isFutures, isIsolated, 50)
if err != nil {
return err
}
orderKeys := make(map[uint64]struct{})
var lastID uint64 = 0
if len(records) > 0 {
for _, record := range records {
orderKeys[record.OrderID] = struct{}{}
}
lastID = records[0].OrderID
startTime = records[0].CreationTime.Time()
}
b := &batch.ClosedOrderBatchQuery{Exchange: exchange}
ordersC, errC := b.Query(ctx, symbol, startTime, time.Now(), lastID)
for order := range ordersC {
select {
case <-ctx.Done():
return ctx.Err()
case err := <-errC:
if err != nil {
return err
}
default:
}
if _, exists := orderKeys[order.OrderID]; exists {
continue
}
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// skip canceled and not filled orders
if order.Status == types.OrderStatusCanceled && order.ExecutedQuantity == 0.0 {
continue
}
if err := s.Insert(order); err != nil {
return err
}
}
return <-errC
}
// QueryLast queries the last order from the database
func (s *OrderService) QueryLast(ex types.ExchangeName, symbol string, isMargin, isFutures, isIsolated bool, limit int) ([]types.Order, error) {
log.Infof("querying last order exchange = %s AND symbol = %s AND is_margin = %v AND is_futures = %v AND is_isolated = %v", ex, symbol, isMargin, isFutures, isIsolated)
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sql := `SELECT * FROM orders WHERE exchange = :exchange AND symbol = :symbol AND is_margin = :is_margin AND is_futures = :is_futures AND is_isolated = :is_isolated ORDER BY gid DESC LIMIT :limit`
rows, err := s.DB.NamedQuery(sql, map[string]interface{}{
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"exchange": ex,
"symbol": symbol,
"is_margin": isMargin,
"is_futures": isFutures,
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"is_isolated": isIsolated,
"limit": limit,
})
if err != nil {
return nil, errors.Wrap(err, "query last order error")
}
defer rows.Close()
return s.scanRows(rows)
}
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type AggOrder struct {
types.Order
AveragePrice *float64 `json:"averagePrice" db:"average_price"`
}
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type QueryOrdersOptions struct {
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Exchange types.ExchangeName
Symbol string
LastGID int64
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Ordering string
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}
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func (s *OrderService) Query(options QueryOrdersOptions) ([]AggOrder, error) {
sql := genOrderSQL(options)
rows, err := s.DB.NamedQuery(sql, map[string]interface{}{
"exchange": options.Exchange,
"symbol": options.Symbol,
"gid": options.LastGID,
})
if err != nil {
return nil, err
}
defer rows.Close()
return s.scanAggRows(rows)
}
func genOrderSQL(options QueryOrdersOptions) string {
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// ascending
ordering := "ASC"
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switch v := strings.ToUpper(options.Ordering); v {
case "DESC", "ASC":
ordering = options.Ordering
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}
var where []string
if options.LastGID > 0 {
switch ordering {
case "ASC":
where = append(where, "gid > :gid")
case "DESC":
where = append(where, "gid < :gid")
}
}
if len(options.Exchange) > 0 {
where = append(where, "exchange = :exchange")
}
if len(options.Symbol) > 0 {
where = append(where, "symbol = :symbol")
}
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sql := `SELECT orders.*, IFNULL(SUM(t.price * t.quantity)/SUM(t.quantity), orders.price) AS average_price FROM orders` +
` LEFT JOIN trades AS t ON (t.order_id = orders.order_id)`
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if len(where) > 0 {
sql += ` WHERE ` + strings.Join(where, " AND ")
}
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sql += ` GROUP BY orders.gid `
sql += ` ORDER BY orders.gid ` + ordering
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sql += ` LIMIT ` + strconv.Itoa(500)
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log.Info(sql)
return sql
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}
func (s *OrderService) scanAggRows(rows *sqlx.Rows) (orders []AggOrder, err error) {
for rows.Next() {
var order AggOrder
if err := rows.StructScan(&order); err != nil {
return nil, err
}
orders = append(orders, order)
}
return orders, rows.Err()
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}
func (s *OrderService) scanRows(rows *sqlx.Rows) (orders []types.Order, err error) {
for rows.Next() {
var order types.Order
if err := rows.StructScan(&order); err != nil {
return nil, err
}
orders = append(orders, order)
}
return orders, rows.Err()
}
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func (s *OrderService) Insert(order types.Order) (err error) {
if s.DB.DriverName() == "mysql" {
_, err = s.DB.NamedExec(`
INSERT INTO orders (exchange, order_id, client_order_id, order_type, status, symbol, price, stop_price, quantity, executed_quantity, side, is_working, time_in_force, created_at, updated_at, is_margin, is_futures, is_isolated)
VALUES (:exchange, :order_id, :client_order_id, :order_type, :status, :symbol, :price, :stop_price, :quantity, :executed_quantity, :side, :is_working, :time_in_force, :created_at, :updated_at, :is_margin, :is_futures, :is_isolated)
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ON DUPLICATE KEY UPDATE status=:status, executed_quantity=:executed_quantity, is_working=:is_working, updated_at=:updated_at`, order)
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return err
}
_, err = s.DB.NamedExec(`
INSERT INTO orders (exchange, order_id, client_order_id, order_type, status, symbol, price, stop_price, quantity, executed_quantity, side, is_working, time_in_force, created_at, updated_at, is_margin, is_futures, is_isolated)
VALUES (:exchange, :order_id, :client_order_id, :order_type, :status, :symbol, :price, :stop_price, :quantity, :executed_quantity, :side, :is_working, :time_in_force, :created_at, :updated_at, :is_margin, :is_futures, :is_isolated)
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`, order)
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return err
}