bbgo_origin/pkg/strategy/grid2/strategy.go

444 lines
14 KiB
Go

package grid2
import (
"context"
"fmt"
"sync"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/c9s/bbgo/pkg/bbgo"
"github.com/c9s/bbgo/pkg/fixedpoint"
"github.com/c9s/bbgo/pkg/types"
"github.com/c9s/bbgo/pkg/util"
)
const ID = "grid2"
var log = logrus.WithField("strategy", ID)
func init() {
// Register the pointer of the strategy struct,
// so that bbgo knows what struct to be used to unmarshal the configs (YAML or JSON)
// Note: built-in strategies need to imported manually in the bbgo cmd package.
bbgo.RegisterStrategy(ID, &Strategy{})
}
type GridProfitStats struct {
TotalProfit fixedpoint.Value `json:"totalProfit"`
FloatProfit fixedpoint.Value `json:"floatProfit"`
GridProfit fixedpoint.Value `json:"gridProfit"`
ArbitrageCount int `json:"arbitrageCount"`
TotalFee fixedpoint.Value `json:"totalFee"`
Volume fixedpoint.Value `json:"volume"`
}
type Strategy struct {
Environment *bbgo.Environment
// Market stores the configuration of the market, for example, VolumePrecision, PricePrecision, MinLotSize... etc
// This field will be injected automatically since we defined the Symbol field.
types.Market `json:"-"`
// These fields will be filled from the config file (it translates YAML to JSON)
Symbol string `json:"symbol"`
// ProfitSpread is the fixed profit spread you want to submit the sell order
ProfitSpread fixedpoint.Value `json:"profitSpread"`
// GridNum is the grid number, how many orders you want to post on the orderbook.
GridNum int64 `json:"gridNumber"`
UpperPrice fixedpoint.Value `json:"upperPrice"`
LowerPrice fixedpoint.Value `json:"lowerPrice"`
// QuantityOrAmount embeds the Quantity field and the Amount field
// If you set up the Quantity field or the Amount field, you don't need to set the QuoteInvestment and BaseInvestment
bbgo.QuantityOrAmount
// If Quantity and Amount is not set, we can use the quote investment to calculate our quantity.
QuoteInvestment fixedpoint.Value `json:"quoteInvestment"`
// BaseInvestment is the total base quantity you want to place as the sell order.
BaseInvestment fixedpoint.Value `json:"baseInvestment"`
grid *Grid
ProfitStats *types.ProfitStats `persistence:"profit_stats"`
Position *types.Position `persistence:"position"`
// orderStore is used to store all the created orders, so that we can filter the trades.
orderStore *bbgo.OrderStore
// activeOrders is the locally maintained active order book of the maker orders.
activeOrders *bbgo.ActiveOrderBook
tradeCollector *bbgo.TradeCollector
orderExecutor *bbgo.GeneralOrderExecutor
// groupID is the group ID used for the strategy instance for canceling orders
groupID uint32
}
func (s *Strategy) ID() string {
return ID
}
func (s *Strategy) Validate() error {
if s.UpperPrice.IsZero() {
return errors.New("upperPrice can not be zero, you forgot to set?")
}
if s.LowerPrice.IsZero() {
return errors.New("lowerPrice can not be zero, you forgot to set?")
}
if s.UpperPrice.Compare(s.LowerPrice) <= 0 {
return fmt.Errorf("upperPrice (%s) should not be less than or equal to lowerPrice (%s)", s.UpperPrice.String(), s.LowerPrice.String())
}
if s.ProfitSpread.Sign() <= 0 {
// If profitSpread is empty or its value is negative
return fmt.Errorf("profit spread should bigger than 0")
}
if s.GridNum == 0 {
return fmt.Errorf("gridNum can not be zero")
}
if err := s.QuantityOrAmount.Validate(); err != nil {
return err
}
return nil
}
func (s *Strategy) Subscribe(session *bbgo.ExchangeSession) {
session.Subscribe(types.KLineChannel, s.Symbol, types.SubscribeOptions{Interval: "1m"})
}
// InstanceID returns the instance identifier from the current grid configuration parameters
func (s *Strategy) InstanceID() string {
return fmt.Sprintf("%s-%s-%d-%d-%d", ID, s.Symbol, s.GridNum, s.UpperPrice.Int(), s.LowerPrice.Int())
}
func (s *Strategy) handleOrderFilled(o types.Order) {
}
func (s *Strategy) Run(ctx context.Context, orderExecutor bbgo.OrderExecutor, session *bbgo.ExchangeSession) error {
instanceID := s.InstanceID()
s.groupID = util.FNV32(instanceID)
log.Infof("using group id %d from fnv(%s)", s.groupID, instanceID)
if s.ProfitStats == nil {
s.ProfitStats = types.NewProfitStats(s.Market)
}
if s.Position == nil {
s.Position = types.NewPositionFromMarket(s.Market)
}
s.orderExecutor = bbgo.NewGeneralOrderExecutor(session, s.Symbol, ID, instanceID, s.Position)
s.orderExecutor.BindEnvironment(s.Environment)
s.orderExecutor.BindProfitStats(s.ProfitStats)
s.orderExecutor.Bind()
s.orderExecutor.TradeCollector().OnPositionUpdate(func(position *types.Position) {
bbgo.Sync(ctx, s)
})
s.grid = NewGrid(s.LowerPrice, s.UpperPrice, fixedpoint.NewFromInt(s.GridNum), s.Market.TickSize)
s.grid.CalculateArithmeticPins()
bbgo.OnShutdown(ctx, func(ctx context.Context, wg *sync.WaitGroup) {
defer wg.Done()
bbgo.Sync(ctx, s)
// now we can cancel the open orders
log.Infof("canceling active orders...")
if err := session.Exchange.CancelOrders(context.Background(), s.activeOrders.Orders()...); err != nil {
log.WithError(err).Errorf("cancel order error")
}
})
session.UserDataStream.OnStart(func() {
if err := s.setupGridOrders(ctx, session); err != nil {
log.WithError(err).Errorf("failed to setup grid orders")
}
})
return nil
}
type InvestmentBudget struct {
baseInvestment fixedpoint.Value
quoteInvestment fixedpoint.Value
baseBalance fixedpoint.Value
quoteBalance fixedpoint.Value
}
func (s *Strategy) checkRequiredInvestmentByQuantity(baseBalance, quoteBalance, quantity, lastPrice fixedpoint.Value, pins []Pin) (requiredBase, requiredQuote fixedpoint.Value, err error) {
// check more investment budget details
requiredBase = fixedpoint.Zero
requiredQuote = fixedpoint.Zero
// when we need to place a buy-to-sell conversion order, we need to mark the price
buyPlacedPrice := fixedpoint.Zero
for i := len(pins) - 1; i >= 0; i-- {
pin := pins[i]
price := fixedpoint.Value(pin)
// TODO: add fee if we don't have the platform token. BNB, OKB or MAX...
if price.Compare(lastPrice) >= 0 {
// for orders that sell
// if we still have the base balance
if requiredBase.Add(quantity).Compare(baseBalance) <= 0 {
requiredBase = requiredBase.Add(quantity)
} else if i > 0 { // we do not want to sell at i == 0
// convert sell to buy quote and add to requiredQuote
nextLowerPin := pins[i-1]
nextLowerPrice := fixedpoint.Value(nextLowerPin)
requiredQuote = requiredQuote.Add(quantity.Mul(nextLowerPrice))
buyPlacedPrice = nextLowerPrice
}
} else {
// for orders that buy
if price.Compare(buyPlacedPrice) == 0 {
continue
}
requiredQuote = requiredQuote.Add(quantity.Mul(price))
}
}
if requiredBase.Compare(baseBalance) > 0 && requiredQuote.Compare(quoteBalance) > 0 {
return requiredBase, requiredQuote, fmt.Errorf("both base balance (%f %s) or quote balance (%f %s) is not enough, required = base %f + quote %f",
baseBalance.Float64(), s.Market.BaseCurrency,
quoteBalance.Float64(), s.Market.QuoteCurrency,
requiredBase.Float64(),
requiredQuote.Float64())
}
if requiredBase.Compare(baseBalance) > 0 {
return requiredBase, requiredQuote, fmt.Errorf("base balance (%f %s), required = base %f",
baseBalance.Float64(), s.Market.BaseCurrency,
requiredBase.Float64(),
)
}
if requiredQuote.Compare(quoteBalance) > 0 {
return requiredBase, requiredQuote, fmt.Errorf("quote balance (%f %s) is not enough, required = quote %f",
quoteBalance.Float64(), s.Market.QuoteCurrency,
requiredQuote.Float64(),
)
}
return requiredBase, requiredQuote, nil
}
func (s *Strategy) checkRequiredInvestmentByAmount(baseBalance, quoteBalance, amount, lastPrice fixedpoint.Value, pins []Pin) (requiredBase, requiredQuote fixedpoint.Value, err error) {
// check more investment budget details
requiredBase = fixedpoint.Zero
requiredQuote = fixedpoint.Zero
// when we need to place a buy-to-sell conversion order, we need to mark the price
buyPlacedPrice := fixedpoint.Zero
for i := len(pins) - 1; i >= 0; i-- {
pin := pins[i]
price := fixedpoint.Value(pin)
// TODO: add fee if we don't have the platform token. BNB, OKB or MAX...
if price.Compare(lastPrice) >= 0 {
// for orders that sell
// if we still have the base balance
quantity := amount.Div(lastPrice)
if requiredBase.Add(quantity).Compare(baseBalance) <= 0 {
requiredBase = requiredBase.Add(quantity)
} else if i > 0 { // we do not want to sell at i == 0
// convert sell to buy quote and add to requiredQuote
nextLowerPin := pins[i-1]
nextLowerPrice := fixedpoint.Value(nextLowerPin)
requiredQuote = requiredQuote.Add(quantity.Mul(nextLowerPrice))
buyPlacedPrice = nextLowerPrice
}
} else {
// for orders that buy
if price.Compare(buyPlacedPrice) == 0 {
continue
}
requiredQuote = requiredQuote.Add(amount)
}
}
if requiredBase.Compare(baseBalance) > 0 && requiredQuote.Compare(quoteBalance) > 0 {
return requiredBase, requiredQuote, fmt.Errorf("both base balance (%f %s) or quote balance (%f %s) is not enough, required = base %f + quote %f",
baseBalance.Float64(), s.Market.BaseCurrency,
quoteBalance.Float64(), s.Market.QuoteCurrency,
requiredBase.Float64(),
requiredQuote.Float64())
}
if requiredBase.Compare(baseBalance) > 0 {
return requiredBase, requiredQuote, fmt.Errorf("base balance (%f %s), required = base %f",
baseBalance.Float64(), s.Market.BaseCurrency,
requiredBase.Float64(),
)
}
if requiredQuote.Compare(quoteBalance) > 0 {
return requiredBase, requiredQuote, fmt.Errorf("quote balance (%f %s) is not enough, required = quote %f",
quoteBalance.Float64(), s.Market.QuoteCurrency,
requiredQuote.Float64(),
)
}
return requiredBase, requiredQuote, nil
}
// setupGridOrders
// 1) if quantity or amount is set, we should use quantity/amount directly instead of using investment amount to calculate.
// 2) if baseInvestment, quoteInvestment is set, then we should calculate the quantity from the given base investment and quote investment.
func (s *Strategy) setupGridOrders(ctx context.Context, session *bbgo.ExchangeSession) error {
lastPrice, err := s.getLastTradePrice(ctx, session)
if err != nil {
return errors.Wrap(err, "failed to get the last trade price")
}
// check if base and quote are enough
baseBalance, ok := session.Account.Balance(s.Market.BaseCurrency)
if !ok {
return fmt.Errorf("base %s balance not found", s.Market.BaseCurrency)
}
quoteBalance, ok := session.Account.Balance(s.Market.QuoteCurrency)
if !ok {
return fmt.Errorf("quote %s balance not found", s.Market.QuoteCurrency)
}
totalBase := baseBalance.Available
totalQuote := quoteBalance.Available
// shift 1 grid because we will start from the buy order
// if the buy order is filled, then we will submit another sell order at the higher grid.
if s.QuantityOrAmount.IsSet() {
if quantity := s.QuantityOrAmount.Quantity; !quantity.IsZero() {
if _, _, err2 := s.checkRequiredInvestmentByQuantity(totalBase, totalQuote, lastPrice, s.QuantityOrAmount.Quantity, s.grid.Pins); err != nil {
return err2
}
}
if amount := s.QuantityOrAmount.Amount; !amount.IsZero() {
if _, _, err2 := s.checkRequiredInvestmentByAmount(totalBase, totalQuote, lastPrice, amount, s.grid.Pins); err != nil {
return err2
}
}
}
if !s.BaseInvestment.IsZero() && !s.QuoteInvestment.IsZero() {
if s.BaseInvestment.Compare(totalBase) > 0 {
return fmt.Errorf("baseInvestment setup %f is greater than the total base balance %f", s.BaseInvestment.Float64(), totalBase.Float64())
}
if s.QuoteInvestment.Compare(totalQuote) > 0 {
return fmt.Errorf("quoteInvestment setup %f is greater than the total quote balance %f", s.QuoteInvestment.Float64(), totalQuote.Float64())
}
if !s.QuantityOrAmount.IsSet() {
// TODO: calculate and override the quantity here
}
}
var buyPlacedPrice = fixedpoint.Zero
var pins = s.grid.Pins
var usedBase = fixedpoint.Zero
var usedQuote = fixedpoint.Zero
var submitOrders []types.SubmitOrder
for i := len(pins) - 1; i >= 0; i-- {
pin := pins[i]
price := fixedpoint.Value(pin)
quantity := s.QuantityOrAmount.Quantity
if quantity.IsZero() {
quantity = s.QuantityOrAmount.Amount.Div(price)
}
// TODO: add fee if we don't have the platform token. BNB, OKB or MAX...
if price.Compare(lastPrice) >= 0 {
if usedBase.Add(quantity).Compare(totalBase) < 0 {
submitOrders = append(submitOrders, types.SubmitOrder{
Symbol: s.Symbol,
Type: types.OrderTypeLimitMaker,
Side: types.SideTypeSell,
Price: price,
Quantity: quantity,
})
usedBase = usedBase.Add(quantity)
} else if i > 0 {
// next price
nextPin := pins[i-1]
nextPrice := fixedpoint.Value(nextPin)
submitOrders = append(submitOrders, types.SubmitOrder{
Symbol: s.Symbol,
Type: types.OrderTypeLimitMaker,
Side: types.SideTypeBuy,
Price: nextPrice,
Quantity: quantity,
})
quoteQuantity := quantity.Mul(price)
usedQuote = usedQuote.Add(quoteQuantity)
buyPlacedPrice = nextPrice
}
} else {
}
/*
createdOrders, err2 := s.orderExecutor.SubmitOrders(ctx, types.SubmitOrder{
Symbol: s.Symbol,
Side: types.SideTypeBuy,
Type: types.OrderTypeLimit,
Quantity: quantity,
Price: price,
Market: s.Market,
TimeInForce: types.TimeInForceGTC,
Tag: "grid",
})
if err2 != nil {
return err2
}
*/
}
return nil
}
func (s *Strategy) getLastTradePrice(ctx context.Context, session *bbgo.ExchangeSession) (fixedpoint.Value, error) {
if bbgo.IsBackTesting {
price, ok := session.LastPrice(s.Symbol)
if !ok {
return fixedpoint.Zero, fmt.Errorf("last price of %s not found", s.Symbol)
}
return price, nil
}
tickers, err := session.Exchange.QueryTickers(ctx, s.Symbol)
if err != nil {
return fixedpoint.Zero, err
}
if ticker, ok := tickers[s.Symbol]; ok {
if !ticker.Last.IsZero() {
return ticker.Last, nil
}
// fallback to buy price
return ticker.Buy, nil
}
return fixedpoint.Zero, fmt.Errorf("%s ticker price not found", s.Symbol)
}