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https://github.com/c9s/bbgo.git
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364 lines
10 KiB
Go
364 lines
10 KiB
Go
package drift
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import (
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"context"
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"fmt"
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"os"
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"sync"
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"github.com/sirupsen/logrus"
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"github.com/wcharczuk/go-chart/v2"
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"github.com/c9s/bbgo/pkg/bbgo"
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"github.com/c9s/bbgo/pkg/fixedpoint"
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"github.com/c9s/bbgo/pkg/indicator"
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"github.com/c9s/bbgo/pkg/types"
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"github.com/c9s/bbgo/pkg/util"
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)
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const ID = "drift"
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var log = logrus.WithField("strategy", ID)
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func init() {
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bbgo.RegisterStrategy(ID, &Strategy{})
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}
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type Strategy struct {
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Symbol string `json:"symbol"`
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bbgo.StrategyController
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types.Market
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types.IntervalWindow
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*bbgo.Environment
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*types.Position
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*types.ProfitStats
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*types.TradeStats
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drift *indicator.Drift
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atr *indicator.ATR
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midPrice fixedpoint.Value
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lock sync.RWMutex
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Stoploss fixedpoint.Value `json:"stoploss"`
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CanvasPath string `json:"canvasPath"`
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ExitMethods bbgo.ExitMethodSet `json:"exits"`
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Session *bbgo.ExchangeSession
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*bbgo.GeneralOrderExecutor
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*bbgo.ActiveOrderBook
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}
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func (s *Strategy) ID() string {
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return ID
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}
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func (s *Strategy) InstanceID() string {
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return fmt.Sprintf("%s:%s", ID, s.Symbol)
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}
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func (s *Strategy) Subscribe(session *bbgo.ExchangeSession) {
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session.Subscribe(types.KLineChannel, s.Symbol, types.SubscribeOptions{
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Interval: s.Interval,
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})
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session.Subscribe(types.KLineChannel, s.Symbol, types.SubscribeOptions{
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Interval: types.Interval1m,
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})
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if !bbgo.IsBackTesting {
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session.Subscribe(types.MarketTradeChannel, s.Symbol, types.SubscribeOptions{})
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}
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s.ExitMethods.SetAndSubscribe(session, s)
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}
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var Three fixedpoint.Value = fixedpoint.NewFromInt(3)
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var Two fixedpoint.Value = fixedpoint.NewFromInt(2)
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func (s *Strategy) GetLastPrice() (lastPrice fixedpoint.Value) {
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var ok bool
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if s.Environment.IsBackTesting() {
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lastPrice, ok = s.Session.LastPrice(s.Symbol)
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if !ok {
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log.Error("cannot get lastprice")
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return lastPrice
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}
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} else {
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s.lock.RLock()
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if s.midPrice.IsZero() {
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lastPrice, ok = s.Session.LastPrice(s.Symbol)
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if !ok {
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log.Error("cannot get lastprice")
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return lastPrice
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}
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} else {
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lastPrice = s.midPrice
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}
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s.lock.RUnlock()
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}
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return lastPrice
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}
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var Delta fixedpoint.Value = fixedpoint.NewFromFloat(0.01)
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func (s *Strategy) ClosePosition(ctx context.Context) (*types.Order, bool) {
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order := s.Position.NewMarketCloseOrder(fixedpoint.One)
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if order == nil {
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return nil, false
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}
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order.TimeInForce = ""
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balances := s.Session.GetAccount().Balances()
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baseBalance := balances[s.Market.BaseCurrency].Available
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price := s.GetLastPrice()
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if order.Side == types.SideTypeBuy {
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quoteAmount := balances[s.Market.QuoteCurrency].Available.Div(price)
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if order.Quantity.Compare(quoteAmount) > 0 {
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order.Quantity = quoteAmount
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}
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} else if order.Side == types.SideTypeSell && order.Quantity.Compare(baseBalance) > 0 {
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order.Quantity = baseBalance
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}
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for {
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if s.Market.IsDustQuantity(order.Quantity, price) {
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return nil, true
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}
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createdOrders, err := s.GeneralOrderExecutor.SubmitOrders(ctx, *order)
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if err != nil {
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order.Quantity = order.Quantity.Mul(fixedpoint.One.Sub(Delta))
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continue
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}
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return &createdOrders[0], true
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}
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}
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func (s *Strategy) Run(ctx context.Context, orderExecutor bbgo.OrderExecutor, session *bbgo.ExchangeSession) error {
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instanceID := s.InstanceID()
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if s.Position == nil {
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s.Position = types.NewPositionFromMarket(s.Market)
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}
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if s.ProfitStats == nil {
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s.ProfitStats = types.NewProfitStats(s.Market)
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}
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if s.TradeStats == nil {
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s.TradeStats = types.NewTradeStats(s.Symbol)
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}
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// StrategyController
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s.Status = types.StrategyStatusRunning
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s.OnSuspend(func() {
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_ = s.GeneralOrderExecutor.GracefulCancel(ctx)
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})
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s.OnEmergencyStop(func() {
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_ = s.GeneralOrderExecutor.GracefulCancel(ctx)
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_, _ = s.ClosePosition(ctx)
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})
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s.Session = session
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s.GeneralOrderExecutor = bbgo.NewGeneralOrderExecutor(session, s.Symbol, ID, instanceID, s.Position)
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s.GeneralOrderExecutor.BindEnvironment(s.Environment)
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s.GeneralOrderExecutor.BindProfitStats(s.ProfitStats)
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s.GeneralOrderExecutor.BindTradeStats(s.TradeStats)
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s.GeneralOrderExecutor.TradeCollector().OnPositionUpdate(func(position *types.Position) {
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bbgo.Sync(s)
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})
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s.GeneralOrderExecutor.Bind()
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for _, method := range s.ExitMethods {
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method.Bind(session, s.GeneralOrderExecutor)
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}
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s.ActiveOrderBook = bbgo.NewActiveOrderBook(s.Symbol)
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s.ActiveOrderBook.BindStream(session.UserDataStream)
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store, _ := session.MarketDataStore(s.Symbol)
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getSource := func(kline *types.KLine) fixedpoint.Value {
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//return kline.High.Add(kline.Low).Div(Two)
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//return kline.Close
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return kline.High.Add(kline.Low).Add(kline.Close).Div(Three)
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}
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s.drift = &indicator.Drift{IntervalWindow: types.IntervalWindow{Interval: s.Interval, Window: s.Window}}
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s.atr = &indicator.ATR{IntervalWindow: types.IntervalWindow{Interval: s.Interval, Window: 14}}
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klines, ok := store.KLinesOfInterval(s.Interval)
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if !ok {
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log.Errorf("klines not exists")
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return nil
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}
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for _, kline := range *klines {
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source := getSource(&kline).Float64()
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s.drift.Update(source)
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s.atr.Update(kline.High.Float64(), kline.Low.Float64(), kline.Close.Float64())
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}
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session.MarketDataStream.OnBookTickerUpdate(func(ticker types.BookTicker) {
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if s.Environment.IsBackTesting() {
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return
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}
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bestBid := ticker.Buy
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bestAsk := ticker.Sell
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if util.TryLock(&s.lock) {
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if !bestAsk.IsZero() && !bestBid.IsZero() {
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s.midPrice = bestAsk.Add(bestBid).Div(types.Two)
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} else if !bestAsk.IsZero() {
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s.midPrice = bestAsk
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} else {
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s.midPrice = bestBid
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}
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s.lock.Unlock()
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}
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})
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dynamicKLine := &types.KLine{}
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priceLine := types.NewQueue(100)
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session.MarketDataStream.OnKLineClosed(func(kline types.KLine) {
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if s.Status != types.StrategyStatusRunning {
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return
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}
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if kline.Symbol != s.Symbol {
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return
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}
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var driftPred, atr float64
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var drift []float64
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if !kline.Closed {
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return
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}
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if kline.Interval == types.Interval1m {
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return
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}
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dynamicKLine.Copy(&kline)
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source := getSource(dynamicKLine)
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sourcef := source.Float64()
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priceLine.Update(sourcef)
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dynamicKLine.Closed = false
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s.drift.Update(sourcef)
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drift = s.drift.Array(2)
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driftPred = s.drift.Predict(3)
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atr = s.atr.Last()
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price := s.GetLastPrice()
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pricef := price.Float64()
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avg := s.Position.AverageCost.Float64()
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stoploss := s.Stoploss.Float64()
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shortCondition := (driftPred <= 0 && drift[0] <= 0)
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longCondition := (driftPred >= 0 && drift[0] >= 0)
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exitShortCondition := ((drift[1] < 0 && drift[0] >= 0) || avg+atr/2 <= pricef || avg*(1.+stoploss) <= pricef) &&
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(!s.Position.IsClosed() && !s.Position.IsDust(fixedpoint.Max(price, source))) && !longCondition
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exitLongCondition := ((drift[1] > 0 && drift[0] < 0) || avg-atr/2 >= pricef || avg*(1.-stoploss) >= pricef) &&
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(!s.Position.IsClosed() && !s.Position.IsDust(fixedpoint.Min(price, source))) && !shortCondition
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if exitShortCondition {
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if s.ActiveOrderBook.NumOfOrders() > 0 {
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if err := s.GeneralOrderExecutor.GracefulCancelActiveOrderBook(ctx, s.ActiveOrderBook); err != nil {
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log.WithError(err).Errorf("cannot cancel orders")
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return
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}
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}
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_, _ = s.ClosePosition(ctx)
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}
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if exitLongCondition {
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if s.ActiveOrderBook.NumOfOrders() > 0 {
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if err := s.GeneralOrderExecutor.GracefulCancelActiveOrderBook(ctx, s.ActiveOrderBook); err != nil {
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log.WithError(err).Errorf("cannot cancel orders")
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return
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}
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}
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_, _ = s.ClosePosition(ctx)
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}
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if shortCondition {
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if s.ActiveOrderBook.NumOfOrders() > 0 {
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if err := s.GeneralOrderExecutor.GracefulCancelActiveOrderBook(ctx, s.ActiveOrderBook); err != nil {
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log.WithError(err).Errorf("cannot cancel orders")
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return
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}
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}
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baseBalance, ok := s.Session.GetAccount().Balance(s.Market.BaseCurrency)
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if !ok {
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log.Errorf("unable to get baseBalance")
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return
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}
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if source.Compare(price) < 0 {
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source = price
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}
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if s.Market.IsDustQuantity(baseBalance.Available, source) {
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return
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}
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_, err := s.GeneralOrderExecutor.SubmitOrders(ctx, types.SubmitOrder{
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Symbol: s.Symbol,
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Side: types.SideTypeSell,
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Type: types.OrderTypeLimitMaker,
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Price: source,
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StopPrice: fixedpoint.NewFromFloat(sourcef + atr/2),
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Quantity: baseBalance.Available,
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})
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if err != nil {
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log.WithError(err).Errorf("cannot place sell order")
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return
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}
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}
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if longCondition {
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if s.ActiveOrderBook.NumOfOrders() > 0 {
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if err := s.GeneralOrderExecutor.GracefulCancelActiveOrderBook(ctx, s.ActiveOrderBook); err != nil {
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log.WithError(err).Errorf("cannot cancel orders")
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return
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}
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}
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if source.Compare(price) > 0 {
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source = price
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}
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quoteBalance, ok := s.Session.GetAccount().Balance(s.Market.QuoteCurrency)
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if !ok {
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log.Errorf("unable to get quoteCurrency")
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return
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}
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if s.Market.IsDustQuantity(
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quoteBalance.Available.Div(source), source) {
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return
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}
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if !s.Position.IsClosed() && !s.Position.IsDust(source) {
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return
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}
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_, err := s.GeneralOrderExecutor.SubmitOrders(ctx, types.SubmitOrder{
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Symbol: s.Symbol,
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Side: types.SideTypeBuy,
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Type: types.OrderTypeLimitMaker,
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Price: source,
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StopPrice: fixedpoint.NewFromFloat(sourcef - atr/2),
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Quantity: quoteBalance.Available.Div(source),
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})
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if err != nil {
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log.WithError(err).Errorf("cannot place buy order")
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return
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}
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}
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})
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bbgo.OnShutdown(func(ctx context.Context, wg *sync.WaitGroup) {
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_, _ = fmt.Fprintln(os.Stderr, s.TradeStats.String())
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canvas := types.NewCanvas(s.InstanceID(), s.Interval)
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fmt.Println(dynamicKLine.StartTime, dynamicKLine.EndTime)
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mean := priceLine.Mean(100)
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highestPrice := priceLine.Minus(mean).Highest(100)
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highestDrift := s.drift.Highest(100)
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ratio := highestDrift / highestPrice
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canvas.Plot("drift", s.drift, dynamicKLine.StartTime, 100)
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canvas.Plot("zero", types.NumberSeries(0), dynamicKLine.StartTime, 100)
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canvas.Plot("price", priceLine.Minus(mean).Mul(ratio), dynamicKLine.StartTime, 100)
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f, err := os.Create(s.CanvasPath)
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if err != nil {
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log.Errorf("%v cannot create on %s", err, s.CanvasPath)
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}
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defer f.Close()
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canvas.Render(chart.PNG, f)
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wg.Done()
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})
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return nil
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}
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