mirror of
https://github.com/c9s/bbgo.git
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799 lines
22 KiB
Go
799 lines
22 KiB
Go
package ewoDgtrd
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import (
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"context"
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"fmt"
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"math"
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"sync"
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"github.com/sirupsen/logrus"
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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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)
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const ID = "ewo_dgtrd"
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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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Market types.Market
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Session *bbgo.ExchangeSession
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UseHeikinAshi bool `json:"useHeikinAshi"` // use heikinashi kline
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Stoploss fixedpoint.Value `json:"stoploss"`
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Symbol string `json:"symbol"`
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Interval types.Interval `json:"interval"`
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UseEma bool `json:"useEma"` // use exponential ma or not
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UseSma bool `json:"useSma"` // if UseEma == false, use simple ma or not
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SignalWindow int `json:"sigWin"` // signal window
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DisableShortStop bool `json:"disableShortStop"` // disable TP/SL on short
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*bbgo.Graceful
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bbgo.SmartStops
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tradeCollector *bbgo.TradeCollector
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atr *indicator.ATR
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ma5 types.Series
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ma34 types.Series
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ewo types.Series
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ewoSignal types.Series
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heikinAshi *HeikinAshi
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peakPrice fixedpoint.Value
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bottomPrice fixedpoint.Value
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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) Initialize() error {
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return s.SmartStops.InitializeStopControllers(s.Symbol)
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}
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func (s *Strategy) Subscribe(session *bbgo.ExchangeSession) {
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log.Infof("subscribe %s", s.Symbol)
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session.Subscribe(types.KLineChannel, s.Symbol, types.SubscribeOptions{Interval: s.Interval.String()})
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s.SmartStops.Subscribe(session)
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}
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type UpdatableSeries interface {
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types.Series
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Update(value float64)
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}
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type VWEMA struct {
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PV UpdatableSeries
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V UpdatableSeries
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}
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func (inc *VWEMA) Last() float64 {
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return inc.PV.Last() / inc.V.Last()
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}
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func (inc *VWEMA) Index(i int) float64 {
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if i >= inc.PV.Length() {
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return 0
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}
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vi := inc.V.Index(i)
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if vi == 0 {
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return 0
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}
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return inc.PV.Index(i) / vi
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}
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func (inc *VWEMA) Length() int {
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pvl := inc.PV.Length()
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vl := inc.V.Length()
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if pvl < vl {
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return pvl
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}
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return vl
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}
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func (inc *VWEMA) Update(kline types.KLine) {
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inc.PV.Update(kline.Close.Mul(kline.Volume).Float64())
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inc.V.Update(kline.Volume.Float64())
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}
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func (inc *VWEMA) UpdateVal(price float64, vol float64) {
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inc.PV.Update(price * vol)
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inc.V.Update(vol)
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}
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type Queue struct {
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arr []float64
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size int
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}
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func NewQueue(size int) *Queue {
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return &Queue{
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arr: make([]float64, 0, size),
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size: size,
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}
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}
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func (inc *Queue) Last() float64 {
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if len(inc.arr) == 0 {
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return 0
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}
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return inc.arr[len(inc.arr)-1]
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}
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func (inc *Queue) Index(i int) float64 {
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if len(inc.arr)-i-1 < 0 {
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return 0
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}
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return inc.arr[len(inc.arr)-i-1]
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}
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func (inc *Queue) Length() int {
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return len(inc.arr)
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}
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func (inc *Queue) Update(v float64) {
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inc.arr = append(inc.arr, v)
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if len(inc.arr) > inc.size {
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inc.arr = inc.arr[len(inc.arr)-inc.size:]
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}
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}
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type HeikinAshi struct {
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Close *Queue
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Open *Queue
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High *Queue
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Low *Queue
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Volume *Queue
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}
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func NewHeikinAshi(size int) *HeikinAshi {
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return &HeikinAshi{
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Close: NewQueue(size),
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Open: NewQueue(size),
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High: NewQueue(size),
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Low: NewQueue(size),
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Volume: NewQueue(size),
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}
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}
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func (s *HeikinAshi) Print() string {
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return fmt.Sprintf("Heikin c: %.3f, o: %.3f, h: %.3f, l: %.3f, v: %.3f",
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s.Close.Last(),
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s.Open.Last(),
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s.High.Last(),
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s.Low.Last(),
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s.Volume.Last())
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}
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func (inc *HeikinAshi) Update(kline types.KLine) {
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open := kline.Open.Float64()
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cloze := kline.Close.Float64()
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high := kline.High.Float64()
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low := kline.Low.Float64()
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newClose := (open + high + low + cloze) / 4.
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newOpen := (inc.Open.Last() + inc.Close.Last()) / 2.
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inc.Close.Update(newClose)
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inc.Open.Update(newOpen)
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inc.High.Update(math.Max(math.Max(high, newOpen), newClose))
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inc.Low.Update(math.Min(math.Min(low, newOpen), newClose))
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inc.Volume.Update(kline.Volume.Float64())
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}
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func (s *Strategy) SetupIndicators() {
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store, ok := s.Session.MarketDataStore(s.Symbol)
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if !ok {
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log.Errorf("cannot get marketdatastore of %s", s.Symbol)
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return
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}
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s.atr = &indicator.ATR{IntervalWindow: types.IntervalWindow{s.Interval, 34}}
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if s.UseHeikinAshi {
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s.heikinAshi = NewHeikinAshi(50)
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store.OnKLineWindowUpdate(func(interval types.Interval, window types.KLineWindow) {
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if s.Interval != interval {
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return
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}
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if s.heikinAshi.Close.Length() == 0 {
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for _, kline := range window {
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s.heikinAshi.Update(kline)
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}
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} else {
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s.heikinAshi.Update(window[len(window)-1])
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}
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})
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if s.UseEma {
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ema5 := &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 5}}
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ema34 := &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 34}}
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store.OnKLineWindowUpdate(func(interval types.Interval, _ types.KLineWindow) {
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if s.Interval != interval {
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return
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}
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if ema5.Length() == 0 {
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closes := types.ToReverseArray(s.heikinAshi.Close)
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for _, cloze := range closes {
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ema5.Update(cloze)
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ema34.Update(cloze)
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}
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} else {
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cloze := s.heikinAshi.Close.Last()
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ema5.Update(cloze)
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ema34.Update(cloze)
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}
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s.atr.Update(
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s.heikinAshi.High.Last(),
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s.heikinAshi.Low.Last(),
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s.heikinAshi.Close.Last())
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})
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s.ma5 = ema5
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s.ma34 = ema34
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} else if s.UseSma {
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sma5 := &indicator.SMA{IntervalWindow: types.IntervalWindow{s.Interval, 5}}
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sma34 := &indicator.SMA{IntervalWindow: types.IntervalWindow{s.Interval, 34}}
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store.OnKLineWindowUpdate(func(interval types.Interval, _ types.KLineWindow) {
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if s.Interval != interval {
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return
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}
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if sma5.Length() == 0 {
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closes := types.ToReverseArray(s.heikinAshi.Close)
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for _, cloze := range closes {
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sma5.Update(cloze)
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sma34.Update(cloze)
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}
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} else {
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cloze := s.heikinAshi.Close.Last()
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sma5.Update(cloze)
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sma34.Update(cloze)
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}
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s.atr.Update(
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s.heikinAshi.High.Last(),
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s.heikinAshi.Low.Last(),
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s.heikinAshi.Close.Last())
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})
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s.ma5 = sma5
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s.ma34 = sma34
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} else {
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evwma5 := &VWEMA{
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PV: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 5}},
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V: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 5}},
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}
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evwma34 := &VWEMA{
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PV: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 34}},
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V: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 34}},
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}
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store.OnKLineWindowUpdate(func(interval types.Interval, _ types.KLineWindow) {
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if s.Interval != interval {
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return
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}
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if evwma5.PV.Length() == 0 {
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for i := s.heikinAshi.Close.Length() - 1; i >= 0; i-- {
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price := s.heikinAshi.Close.Index(i)
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vol := s.heikinAshi.Volume.Index(i)
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evwma5.UpdateVal(price, vol)
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evwma34.UpdateVal(price, vol)
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}
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} else {
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price := s.heikinAshi.Close.Last()
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vol := s.heikinAshi.Volume.Last()
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evwma5.UpdateVal(price, vol)
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evwma34.UpdateVal(price, vol)
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}
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s.atr.Update(
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s.heikinAshi.High.Last(),
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s.heikinAshi.Low.Last(),
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s.heikinAshi.Close.Last())
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})
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s.ma5 = evwma5
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s.ma34 = evwma34
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}
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} else {
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indicatorSet, ok := s.Session.StandardIndicatorSet(s.Symbol)
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if !ok {
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log.Errorf("cannot get indicator set of %s", s.Symbol)
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return
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}
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if s.UseEma {
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s.ma5 = indicatorSet.EWMA(types.IntervalWindow{s.Interval, 5})
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s.ma34 = indicatorSet.EWMA(types.IntervalWindow{s.Interval, 34})
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s.atr.Bind(store)
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} else if s.UseSma {
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s.ma5 = indicatorSet.SMA(types.IntervalWindow{s.Interval, 5})
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s.ma34 = indicatorSet.SMA(types.IntervalWindow{s.Interval, 34})
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s.atr.Bind(store)
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} else {
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evwma5 := &VWEMA{
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PV: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 5}},
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V: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 5}},
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}
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evwma34 := &VWEMA{
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PV: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 34}},
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V: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, 34}},
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}
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store.OnKLineWindowUpdate(func(interval types.Interval, window types.KLineWindow) {
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if s.Interval != interval {
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return
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}
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if evwma5.PV.Length() == 0 {
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for _, kline := range window {
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evwma5.Update(kline)
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evwma34.Update(kline)
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s.atr.Update(
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kline.High.Float64(),
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kline.Low.Float64(),
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kline.Close.Float64(),
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)
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}
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} else {
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evwma5.Update(window[len(window)-1])
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evwma34.Update(window[len(window)-1])
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s.atr.Update(
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window[len(window)-1].High.Float64(),
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window[len(window)-1].Low.Float64(),
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window[len(window)-1].Close.Float64(),
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)
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}
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})
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s.ma5 = evwma5
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s.ma34 = evwma34
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}
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}
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s.ewo = types.Mul(types.Minus(types.Div(s.ma5, s.ma34), 1.0), 100.)
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if s.UseEma {
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sig := &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, s.SignalWindow}}
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store.OnKLineWindowUpdate(func(interval types.Interval, _ types.KLineWindow) {
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if interval != s.Interval {
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return
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}
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if sig.Length() == 0 {
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// lazy init
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ewoVals := types.ToReverseArray(s.ewo)
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for _, ewoValue := range ewoVals {
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sig.Update(ewoValue)
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}
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} else {
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sig.Update(s.ewo.Last())
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}
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})
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s.ewoSignal = sig
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} else if s.UseSma {
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sig := &indicator.SMA{IntervalWindow: types.IntervalWindow{s.Interval, s.SignalWindow}}
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store.OnKLineWindowUpdate(func(interval types.Interval, _ types.KLineWindow) {
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if interval != s.Interval {
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return
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}
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if sig.Length() == 0 {
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// lazy init
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ewoVals := types.ToReverseArray(s.ewo)
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for _, ewoValue := range ewoVals {
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sig.Update(ewoValue)
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}
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} else {
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sig.Update(s.ewo.Last())
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}
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})
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s.ewoSignal = sig
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} else {
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sig := &VWEMA{
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PV: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, s.SignalWindow}},
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V: &indicator.EWMA{IntervalWindow: types.IntervalWindow{s.Interval, s.SignalWindow}},
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}
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store.OnKLineWindowUpdate(func(interval types.Interval, window types.KLineWindow) {
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if interval != s.Interval {
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return
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}
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var vol float64
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if sig.Length() == 0 {
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// lazy init
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ewoVals := types.ToReverseArray(s.ewo)
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for i, ewoValue := range ewoVals {
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if s.UseHeikinAshi {
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vol = s.heikinAshi.Volume.Index(len(ewoVals) - 1 - i)
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} else {
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vol = window[len(ewoVals)-1-i].Volume.Float64()
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}
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sig.PV.Update(ewoValue * vol)
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sig.V.Update(vol)
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}
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} else {
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if s.UseHeikinAshi {
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vol = s.heikinAshi.Volume.Last()
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} else {
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vol = window[len(window)-1].Volume.Float64()
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}
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sig.PV.Update(s.ewo.Last() * vol)
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sig.V.Update(vol)
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}
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})
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s.ewoSignal = sig
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}
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}
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func (s *Strategy) validateOrder(order *types.SubmitOrder) bool {
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if order.Type == types.OrderTypeMarket && order.TimeInForce != "" {
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return false
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}
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if order.Side == types.SideTypeSell {
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baseBalance, ok := s.Session.GetAccount().Balance(s.Market.BaseCurrency)
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if !ok {
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return false
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}
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if order.Quantity.Compare(baseBalance.Available) > 0 {
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return false
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}
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price := order.Price
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if price.IsZero() {
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price, ok = s.Session.LastPrice(s.Symbol)
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if !ok {
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return false
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}
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}
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orderAmount := order.Quantity.Mul(price)
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if order.Quantity.Sign() <= 0 ||
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order.Quantity.Compare(s.Market.MinQuantity) < 0 ||
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orderAmount.Compare(s.Market.MinNotional) < 0 {
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return false
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}
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return true
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} else if order.Side == types.SideTypeBuy {
|
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quoteBalance, ok := s.Session.GetAccount().Balance(s.Market.QuoteCurrency)
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if !ok {
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return false
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}
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price := order.Price
|
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if price.IsZero() {
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price, ok = s.Session.LastPrice(s.Symbol)
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if !ok {
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return false
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}
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}
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totalQuantity := quoteBalance.Available.Div(price)
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if order.Quantity.Compare(totalQuantity) > 0 {
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return false
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}
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orderAmount := order.Quantity.Mul(price)
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if order.Quantity.Sign() <= 0 ||
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orderAmount.Compare(s.Market.MinNotional) < 0 ||
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order.Quantity.Compare(s.Market.MinQuantity) < 0 {
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return false
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}
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return true
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}
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return false
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|
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}
|
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|
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// Trading Rules:
|
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// - buy / sell the whole asset
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// - SL/TP by atr (buyprice - 2 * atr, sellprice + 2 * atr)
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// - SL by s.Stoploss (Abs(price_diff / price) > s.Stoploss)
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// - entry condition on ewo(Elliott wave oscillator) Crosses ewoSignal(ma on ewo, signalWindow)
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// * buy signal on crossover
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// * sell signal on crossunder
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// - and filtered by the following rules:
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// * buy: prev buy signal ON and current sell signal OFF, kline Close > Open, Close > ma(Window=5), ewo > Mean(ewo, Window=5)
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// * sell: prev buy signal OFF and current sell signal ON, kline Close < Open, Close < ma(Window=5), ewo < Mean(ewo, Window=5)
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// Cancel and repost on non-fully filed orders every 1m within Window=1
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//
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// ps: kline might refer to heikinashi or normal ohlc
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func (s *Strategy) Run(ctx context.Context, orderExecutor bbgo.OrderExecutor, session *bbgo.ExchangeSession) error {
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buyPrice := fixedpoint.Zero
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sellPrice := fixedpoint.Zero
|
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s.peakPrice = fixedpoint.Zero
|
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s.bottomPrice = fixedpoint.Zero
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|
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orderbook, ok := session.OrderStore(s.Symbol)
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if !ok {
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log.Errorf("cannot get orderbook of %s", s.Symbol)
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return nil
|
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}
|
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position, ok := session.Position(s.Symbol)
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if !ok {
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log.Errorf("cannot get position of %s", s.Symbol)
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return nil
|
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}
|
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s.tradeCollector = bbgo.NewTradeCollector(s.Symbol, position, orderbook)
|
|
s.tradeCollector.OnTrade(func(trade types.Trade, profit, netprofit fixedpoint.Value) {
|
|
if !profit.IsZero() {
|
|
log.Warnf("generate profit: %v, netprofit: %v, trade: %v", profit, netprofit, trade)
|
|
}
|
|
if trade.Side == types.SideTypeBuy {
|
|
if sellPrice.IsZero() {
|
|
buyPrice = trade.Price
|
|
s.peakPrice = trade.Price
|
|
} else {
|
|
sellPrice = fixedpoint.Zero
|
|
}
|
|
} else if trade.Side == types.SideTypeSell {
|
|
if buyPrice.IsZero() {
|
|
sellPrice = trade.Price
|
|
s.bottomPrice = trade.Price
|
|
} else {
|
|
buyPrice = fixedpoint.Zero
|
|
}
|
|
}
|
|
})
|
|
|
|
s.tradeCollector.OnPositionUpdate(func(position *types.Position) {
|
|
log.Infof("position changed: %s", position)
|
|
})
|
|
s.tradeCollector.BindStream(session.UserDataStream)
|
|
|
|
s.SmartStops.RunStopControllers(ctx, session, s.tradeCollector)
|
|
|
|
s.SetupIndicators()
|
|
|
|
session.MarketDataStream.OnKLineClosed(func(kline types.KLine) {
|
|
if kline.Symbol != s.Symbol {
|
|
return
|
|
}
|
|
|
|
lastPrice, ok := session.LastPrice(s.Symbol)
|
|
if !ok {
|
|
log.Errorf("cannot get last price")
|
|
return
|
|
}
|
|
balances := session.GetAccount().Balances()
|
|
baseBalance := balances[s.Market.BaseCurrency].Available
|
|
quoteBalance := balances[s.Market.QuoteCurrency].Available
|
|
|
|
// cancel non-traded orders
|
|
var toCancel []types.Order
|
|
var toRepost []types.SubmitOrder
|
|
for _, order := range orderbook.Orders() {
|
|
if order.Status == types.OrderStatusNew || order.Status == types.OrderStatusPartiallyFilled {
|
|
toCancel = append(toCancel, order)
|
|
}
|
|
}
|
|
if len(toCancel) > 0 {
|
|
if err := orderExecutor.CancelOrders(ctx, toCancel...); err != nil {
|
|
log.WithError(err).Errorf("cancel order error")
|
|
}
|
|
|
|
s.tradeCollector.Process()
|
|
}
|
|
|
|
// well, only track prices on 1m
|
|
if kline.Interval == types.Interval1m {
|
|
for _, order := range toCancel {
|
|
if order.Side == types.SideTypeBuy && order.Price.Compare(kline.Low) < 0 {
|
|
newPrice := lastPrice
|
|
order.Quantity = order.Quantity.Mul(order.Price).Div(newPrice)
|
|
order.Price = newPrice
|
|
toRepost = append(toRepost, order.SubmitOrder)
|
|
} else if order.Side == types.SideTypeSell && order.Price.Compare(kline.High) > 0 {
|
|
newPrice := lastPrice
|
|
order.Price = newPrice
|
|
toRepost = append(toRepost, order.SubmitOrder)
|
|
}
|
|
}
|
|
|
|
if len(toRepost) > 0 {
|
|
createdOrders, err := orderExecutor.SubmitOrders(ctx, toRepost...)
|
|
if err != nil {
|
|
log.WithError(err).Errorf("cannot place order")
|
|
return
|
|
}
|
|
log.Infof("repost order %v", createdOrders)
|
|
s.tradeCollector.Process()
|
|
}
|
|
sellall := false
|
|
buyall := false
|
|
if !baseBalance.IsZero() {
|
|
if s.peakPrice.IsZero() && !buyPrice.IsZero() {
|
|
s.peakPrice = kline.High
|
|
} else if s.peakPrice.Compare(kline.High) < 0 {
|
|
s.peakPrice = kline.High
|
|
}
|
|
}
|
|
|
|
if !quoteBalance.IsZero() {
|
|
if s.bottomPrice.IsZero() && !sellPrice.IsZero() {
|
|
s.bottomPrice = kline.Low
|
|
} else if s.bottomPrice.Compare(kline.Low) > 0 {
|
|
s.bottomPrice = kline.Low
|
|
}
|
|
}
|
|
|
|
atrx2 := fixedpoint.NewFromFloat(s.atr.Last() * 2)
|
|
|
|
takeProfit := false
|
|
peakBack := s.peakPrice
|
|
bottomBack := s.bottomPrice
|
|
if !baseBalance.IsZero() && !buyPrice.IsZero() {
|
|
|
|
// TP
|
|
if !atrx2.IsZero() && s.peakPrice.Sub(atrx2).Compare(lastPrice) >= 0 &&
|
|
lastPrice.Compare(buyPrice) > 0 {
|
|
sellall = true
|
|
s.peakPrice = fixedpoint.Zero
|
|
takeProfit = true
|
|
}
|
|
|
|
// SL
|
|
if buyPrice.Sub(lastPrice).Div(buyPrice).Compare(s.Stoploss) > 0 ||
|
|
(!atrx2.IsZero() && buyPrice.Sub(atrx2).Compare(lastPrice) >= 0) {
|
|
sellall = true
|
|
s.peakPrice = fixedpoint.Zero
|
|
}
|
|
}
|
|
|
|
if !quoteBalance.IsZero() && !sellPrice.IsZero() && !s.DisableShortStop {
|
|
// TP
|
|
if !atrx2.IsZero() && s.bottomPrice.Add(atrx2).Compare(lastPrice) >= 0 &&
|
|
lastPrice.Compare(sellPrice) < 0 {
|
|
buyall = true
|
|
s.bottomPrice = fixedpoint.Zero
|
|
takeProfit = true
|
|
}
|
|
|
|
// SL
|
|
if (!atrx2.IsZero() && sellPrice.Add(atrx2).Compare(lastPrice) <= 0) ||
|
|
lastPrice.Sub(sellPrice).Div(sellPrice).Compare(s.Stoploss) > 0 {
|
|
buyall = true
|
|
s.bottomPrice = fixedpoint.Zero
|
|
}
|
|
}
|
|
if sellall {
|
|
order := types.SubmitOrder{
|
|
Symbol: s.Symbol,
|
|
Side: types.SideTypeSell,
|
|
Type: types.OrderTypeMarket,
|
|
Market: s.Market,
|
|
Quantity: baseBalance,
|
|
}
|
|
if s.validateOrder(&order) {
|
|
if takeProfit {
|
|
log.Errorf("takeprofit sell at %v, avg %v, h: %v, atrx2: %v, timestamp: %s", lastPrice, buyPrice, peakBack, atrx2, kline.StartTime)
|
|
} else {
|
|
log.Errorf("stoploss sell at %v, avg %v, h: %v, atrx2: %v, timestamp %s", lastPrice, buyPrice, peakBack, atrx2, kline.StartTime)
|
|
}
|
|
createdOrders, err := orderExecutor.SubmitOrders(ctx, order)
|
|
if err != nil {
|
|
log.WithError(err).Errorf("cannot place order")
|
|
return
|
|
}
|
|
log.Infof("stoploss sold order %v", createdOrders)
|
|
s.tradeCollector.Process()
|
|
}
|
|
}
|
|
|
|
if buyall {
|
|
totalQuantity := quoteBalance.Div(lastPrice)
|
|
order := types.SubmitOrder{
|
|
Symbol: kline.Symbol,
|
|
Side: types.SideTypeBuy,
|
|
Type: types.OrderTypeMarket,
|
|
Quantity: totalQuantity,
|
|
Market: s.Market,
|
|
}
|
|
if s.validateOrder(&order) {
|
|
if takeProfit {
|
|
log.Errorf("takeprofit buy at %v, avg %v, l: %v, atrx2: %v, timestamp: %s", lastPrice, sellPrice, bottomBack, atrx2, kline.StartTime)
|
|
} else {
|
|
log.Errorf("stoploss buy at %v, avg %v, l: %v, atrx2: %v, timestamp: %s", lastPrice, sellPrice, bottomBack, atrx2, kline.StartTime)
|
|
}
|
|
|
|
createdOrders, err := orderExecutor.SubmitOrders(ctx, order)
|
|
if err != nil {
|
|
log.WithError(err).Errorf("cannot place order")
|
|
return
|
|
}
|
|
log.Infof("stoploss bought order %v", createdOrders)
|
|
s.tradeCollector.Process()
|
|
}
|
|
}
|
|
}
|
|
|
|
if kline.Interval != s.Interval {
|
|
return
|
|
}
|
|
|
|
// To get the threshold for ewo
|
|
mean := types.Mean(types.Abs(s.ewo), 5)
|
|
|
|
longSignal := types.CrossOver(s.ewo, s.ewoSignal)
|
|
shortSignal := types.CrossUnder(s.ewo, s.ewoSignal)
|
|
// get trend flags
|
|
var bull, breakThrough, breakDown bool
|
|
if s.UseHeikinAshi {
|
|
bull = s.heikinAshi.Close.Last() > s.heikinAshi.Open.Last()
|
|
breakThrough = s.heikinAshi.Close.Last() > s.ma5.Last()
|
|
breakDown = s.heikinAshi.Close.Last() < s.ma5.Last()
|
|
} else {
|
|
bull = kline.Close.Compare(kline.Open) > 0
|
|
breakThrough = kline.Close.Float64() > s.ma5.Last()
|
|
breakDown = kline.Close.Float64() < s.ma5.Last()
|
|
}
|
|
// kline breakthrough ma5, ma50 trend up, and ewo > threshold
|
|
IsBull := bull && breakThrough && s.ewo.Last() >= mean
|
|
// kline downthrough ma5, ma50 trend down, and ewo < threshold
|
|
IsBear := !bull && breakDown && s.ewo.Last() <= -mean
|
|
|
|
var orders []types.SubmitOrder
|
|
var price fixedpoint.Value
|
|
|
|
if longSignal.Index(1) && !shortSignal.Last() && IsBull {
|
|
if s.UseHeikinAshi {
|
|
price = fixedpoint.NewFromFloat(s.heikinAshi.Close.Last())
|
|
} else {
|
|
price = kline.Low
|
|
}
|
|
quoteBalance, ok := session.GetAccount().Balance(s.Market.QuoteCurrency)
|
|
if !ok {
|
|
return
|
|
}
|
|
quantityAmount := quoteBalance.Available
|
|
totalQuantity := quantityAmount.Div(price)
|
|
order := types.SubmitOrder{
|
|
Symbol: kline.Symbol,
|
|
Side: types.SideTypeBuy,
|
|
Type: types.OrderTypeLimit,
|
|
Price: price,
|
|
Quantity: totalQuantity,
|
|
Market: s.Market,
|
|
TimeInForce: types.TimeInForceGTC,
|
|
}
|
|
if s.validateOrder(&order) {
|
|
// strong long
|
|
log.Warnf("long at %v, timestamp: %s", price, kline.StartTime)
|
|
|
|
orders = append(orders, order)
|
|
}
|
|
} else if shortSignal.Index(1) && !longSignal.Last() && IsBear {
|
|
if s.UseHeikinAshi {
|
|
price = fixedpoint.NewFromFloat(s.heikinAshi.Close.Last())
|
|
} else {
|
|
price = kline.High
|
|
}
|
|
balances := session.GetAccount().Balances()
|
|
baseBalance := balances[s.Market.BaseCurrency].Available
|
|
order := types.SubmitOrder{
|
|
Symbol: s.Symbol,
|
|
Side: types.SideTypeSell,
|
|
Type: types.OrderTypeLimit,
|
|
Market: s.Market,
|
|
Quantity: baseBalance,
|
|
Price: price,
|
|
TimeInForce: types.TimeInForceGTC,
|
|
}
|
|
if s.validateOrder(&order) {
|
|
log.Warnf("short at %v, timestamp: %s", price, kline.StartTime)
|
|
orders = append(orders, order)
|
|
}
|
|
}
|
|
if len(orders) > 0 {
|
|
createdOrders, err := orderExecutor.SubmitOrders(ctx, orders...)
|
|
if err != nil {
|
|
log.WithError(err).Errorf("cannot place order")
|
|
return
|
|
}
|
|
log.Infof("post order %v", createdOrders)
|
|
s.tradeCollector.Process()
|
|
}
|
|
})
|
|
s.Graceful.OnShutdown(func(ctx context.Context, wg *sync.WaitGroup) {
|
|
defer wg.Done()
|
|
log.Infof("canceling active orders...")
|
|
|
|
var toCancel []types.Order
|
|
for _, order := range orderbook.Orders() {
|
|
if order.Status == types.OrderStatusNew || order.Status == types.OrderStatusPartiallyFilled {
|
|
toCancel = append(toCancel, order)
|
|
}
|
|
}
|
|
|
|
if err := orderExecutor.CancelOrders(ctx, toCancel...); err != nil {
|
|
log.WithError(err).Errorf("cancel order error")
|
|
}
|
|
s.tradeCollector.Process()
|
|
})
|
|
return nil
|
|
}
|