mirror of
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491 lines
13 KiB
Go
491 lines
13 KiB
Go
package bitget
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import (
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"errors"
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"fmt"
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"math"
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"strconv"
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"time"
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v2 "github.com/c9s/bbgo/pkg/exchange/bitget/bitgetapi/v2"
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"github.com/c9s/bbgo/pkg/fixedpoint"
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"github.com/c9s/bbgo/pkg/types"
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)
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func toGlobalBalance(asset v2.AccountAsset) types.Balance {
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return types.Balance{
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Currency: asset.Coin,
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Available: asset.Available,
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Locked: asset.Locked.Add(asset.Frozen),
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Borrowed: fixedpoint.Zero,
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Interest: fixedpoint.Zero,
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NetAsset: fixedpoint.Zero,
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MaxWithdrawAmount: fixedpoint.Zero,
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}
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}
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func toGlobalMarket(s v2.Symbol) types.Market {
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if s.Status != v2.SymbolStatusOnline {
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log.Warnf("The market symbol status %s is not online: %s", s.Symbol, s.Status)
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}
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return types.Market{
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Exchange: types.ExchangeBitget,
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Symbol: s.Symbol,
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LocalSymbol: s.Symbol,
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PricePrecision: s.PricePrecision.Int(),
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VolumePrecision: s.QuantityPrecision.Int(),
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QuoteCurrency: s.QuoteCoin,
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BaseCurrency: s.BaseCoin,
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MinNotional: s.MinTradeUSDT,
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MinAmount: s.MinTradeUSDT,
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MinQuantity: s.MinTradeAmount,
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MaxQuantity: s.MaxTradeAmount,
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StepSize: fixedpoint.NewFromFloat(1.0 / math.Pow10(s.QuantityPrecision.Int())),
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TickSize: fixedpoint.NewFromFloat(1.0 / math.Pow10(s.PricePrecision.Int())),
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MinPrice: fixedpoint.Zero,
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MaxPrice: fixedpoint.Zero,
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}
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}
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func toGlobalTicker(ticker v2.Ticker) types.Ticker {
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return types.Ticker{
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Time: ticker.Ts.Time(),
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Volume: ticker.BaseVolume,
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Last: ticker.LastPr,
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Open: ticker.Open,
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High: ticker.High24H,
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Low: ticker.Low24H,
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Buy: ticker.BidPr,
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Sell: ticker.AskPr,
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}
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}
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func toGlobalSideType(side v2.SideType) (types.SideType, error) {
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switch side {
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case v2.SideTypeBuy:
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return types.SideTypeBuy, nil
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case v2.SideTypeSell:
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return types.SideTypeSell, nil
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default:
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return types.SideType(side), fmt.Errorf("unexpected side: %s", side)
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}
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}
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func toGlobalOrderType(s v2.OrderType) (types.OrderType, error) {
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switch s {
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case v2.OrderTypeMarket:
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return types.OrderTypeMarket, nil
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case v2.OrderTypeLimit:
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return types.OrderTypeLimit, nil
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default:
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return types.OrderType(s), fmt.Errorf("unexpected order type: %s", s)
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}
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}
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func toGlobalOrderStatus(status v2.OrderStatus) (types.OrderStatus, error) {
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switch status {
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case v2.OrderStatusInit, v2.OrderStatusNew, v2.OrderStatusLive:
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return types.OrderStatusNew, nil
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case v2.OrderStatusPartialFilled:
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return types.OrderStatusPartiallyFilled, nil
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case v2.OrderStatusFilled:
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return types.OrderStatusFilled, nil
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case v2.OrderStatusCancelled:
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return types.OrderStatusCanceled, nil
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default:
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return types.OrderStatus(status), fmt.Errorf("unexpected order status: %s", status)
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}
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}
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func isMaker(s v2.TradeScope) (bool, error) {
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switch s {
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case v2.TradeMaker:
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return true, nil
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case v2.TradeTaker:
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return false, nil
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default:
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return false, fmt.Errorf("unexpected trade scope: %s", s)
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}
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}
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func isFeeDiscount(s v2.DiscountStatus) (bool, error) {
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switch s {
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case v2.DiscountYes:
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return true, nil
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case v2.DiscountNo:
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return false, nil
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default:
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return false, fmt.Errorf("unexpected discount status: %s", s)
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}
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}
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func toGlobalTrade(trade v2.Trade) (*types.Trade, error) {
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side, err := toGlobalSideType(trade.Side)
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if err != nil {
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return nil, err
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}
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isMaker, err := isMaker(trade.TradeScope)
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if err != nil {
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return nil, err
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}
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isDiscount, err := isFeeDiscount(trade.FeeDetail.Deduction)
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if err != nil {
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return nil, err
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}
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return &types.Trade{
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ID: uint64(trade.TradeId),
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OrderID: uint64(trade.OrderId),
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Exchange: types.ExchangeBitget,
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Price: trade.PriceAvg,
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Quantity: trade.Size,
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QuoteQuantity: trade.Amount,
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Symbol: trade.Symbol,
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Side: side,
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IsBuyer: side == types.SideTypeBuy,
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IsMaker: isMaker,
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Time: types.Time(trade.CreatedTime),
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Fee: trade.FeeDetail.TotalFee.Abs(),
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FeeCurrency: trade.FeeDetail.FeeCoin,
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FeeDiscounted: isDiscount,
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}, nil
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}
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// unfilledOrderToGlobalOrder convert the local order to global.
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//
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// Note that the quantity unit, according official document: Base coin when orderType=limit; Quote coin when orderType=market
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// https://bitgetlimited.github.io/apidoc/zh/spot/#19671a1099
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func unfilledOrderToGlobalOrder(order v2.UnfilledOrder) (*types.Order, error) {
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side, err := toGlobalSideType(order.Side)
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if err != nil {
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return nil, err
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}
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orderType, err := toGlobalOrderType(order.OrderType)
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if err != nil {
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return nil, err
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}
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status, err := toGlobalOrderStatus(order.Status)
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if err != nil {
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return nil, err
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}
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qty := order.Size
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price := order.PriceAvg
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// The market order will be executed immediately, so this check is used to handle corner cases.
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if orderType == types.OrderTypeMarket {
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qty = order.BaseVolume
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log.Warnf("!!! The price(%f) and quantity(%f) are not verified for market orders, because we only receive limit orders in the test environment !!!", price.Float64(), qty.Float64())
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}
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return &types.Order{
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SubmitOrder: types.SubmitOrder{
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ClientOrderID: order.ClientOrderId,
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Symbol: order.Symbol,
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Side: side,
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Type: orderType,
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Quantity: qty,
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Price: price,
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// Bitget does not include the "time-in-force" field in its API response for spot trading, so we set GTC.
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TimeInForce: types.TimeInForceGTC,
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},
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Exchange: types.ExchangeBitget,
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OrderID: uint64(order.OrderId),
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UUID: strconv.FormatInt(int64(order.OrderId), 10),
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Status: status,
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ExecutedQuantity: order.BaseVolume,
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IsWorking: order.Status.IsWorking(),
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CreationTime: types.Time(order.CreatedTime.Time()),
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UpdateTime: types.Time(order.UpdatedTime.Time()),
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}, nil
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}
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func toGlobalOrder(order v2.OrderDetail) (*types.Order, error) {
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side, err := toGlobalSideType(order.Side)
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if err != nil {
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return nil, err
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}
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orderType, err := toGlobalOrderType(order.OrderType)
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if err != nil {
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return nil, err
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}
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status, err := toGlobalOrderStatus(order.Status)
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if err != nil {
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return nil, err
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}
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qty := order.Size
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price := order.Price
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if orderType == types.OrderTypeMarket {
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price = order.PriceAvg
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if side == types.SideTypeBuy {
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qty, err = processMarketBuyQuantity(order.BaseVolume, order.QuoteVolume, order.PriceAvg, order.Size, order.Status)
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if err != nil {
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return nil, err
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}
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}
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}
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return &types.Order{
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SubmitOrder: types.SubmitOrder{
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ClientOrderID: order.ClientOrderId,
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Symbol: order.Symbol,
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Side: side,
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Type: orderType,
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Quantity: qty,
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Price: price,
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// Bitget does not include the "time-in-force" field in its API response for spot trading, so we set GTC.
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TimeInForce: types.TimeInForceGTC,
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},
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Exchange: types.ExchangeBitget,
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OrderID: uint64(order.OrderId),
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UUID: strconv.FormatInt(int64(order.OrderId), 10),
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Status: status,
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ExecutedQuantity: order.BaseVolume,
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IsWorking: order.Status.IsWorking(),
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CreationTime: types.Time(order.CreatedTime.Time()),
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UpdateTime: types.Time(order.UpdatedTime.Time()),
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}, nil
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}
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// processMarketBuyQuantity returns the estimated base quantity or real. The order size will be 'quote quantity' when side is buy and
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// type is market, so we need to convert that. This is because the unit of types.Order.Quantity is base coin.
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//
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// If the order status is PartialFilled, return estimated base coin quantity.
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// If the order status is Filled, return the filled base quantity instead of the buy quantity, because a market order on the buy side
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// cannot execute all.
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// Otherwise, return zero.
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func processMarketBuyQuantity(
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filledQty, filledPrice, priceAvg, buyQty fixedpoint.Value, orderStatus v2.OrderStatus,
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) (fixedpoint.Value, error) {
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switch orderStatus {
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case v2.OrderStatusInit, v2.OrderStatusNew, v2.OrderStatusLive, v2.OrderStatusCancelled:
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return fixedpoint.Zero, nil
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case v2.OrderStatusPartialFilled:
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// sanity check for avoid divide 0
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if priceAvg.IsZero() {
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return fixedpoint.Zero, errors.New("priceAvg for a partialFilled should not be zero")
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}
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// calculate the remaining quote coin quantity.
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remainPrice := buyQty.Sub(filledPrice)
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// calculate the remaining base coin quantity.
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remainBaseCoinQty := remainPrice.Div(priceAvg)
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// Estimated quantity that may be purchased.
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return filledQty.Add(remainBaseCoinQty), nil
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case v2.OrderStatusFilled:
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// Market buy orders may not purchase the entire quantity, hence the use of filledQty here.
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return filledQty, nil
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default:
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return fixedpoint.Zero, fmt.Errorf("failed to execute market buy quantity due to unexpected order status %s ", orderStatus)
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}
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}
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func toLocalOrderType(orderType types.OrderType) (v2.OrderType, error) {
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switch orderType {
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case types.OrderTypeLimit, types.OrderTypeLimitMaker:
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return v2.OrderTypeLimit, nil
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case types.OrderTypeMarket:
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return v2.OrderTypeMarket, nil
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default:
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return "", fmt.Errorf("order type %s not supported", orderType)
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}
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}
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func toLocalSide(side types.SideType) (v2.SideType, error) {
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switch side {
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case types.SideTypeSell:
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return v2.SideTypeSell, nil
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case types.SideTypeBuy:
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return v2.SideTypeBuy, nil
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default:
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return "", fmt.Errorf("side type %s not supported", side)
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}
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}
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func toGlobalBalanceMap(balances []Balance) types.BalanceMap {
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bm := types.BalanceMap{}
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for _, obj := range balances {
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bm[obj.Coin] = types.Balance{
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Currency: obj.Coin,
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Available: obj.Available,
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Locked: obj.Frozen.Add(obj.Locked),
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}
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}
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return bm
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}
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func toGlobalKLines(symbol string, interval types.Interval, kLines v2.KLineResponse) []types.KLine {
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gKLines := make([]types.KLine, len(kLines))
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for i, kline := range kLines {
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// follow the binance rule, to avoid endTime overlapping with the next startTime. So we subtract -1 time.Millisecond
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// on endTime.
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endTime := types.Time(kline.Ts.Time().Add(interval.Duration() - time.Millisecond))
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gKLines[i] = types.KLine{
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Exchange: types.ExchangeBitget,
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Symbol: symbol,
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StartTime: types.Time(kline.Ts),
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EndTime: endTime,
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Interval: interval,
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Open: kline.Open,
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Close: kline.Close,
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High: kline.High,
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Low: kline.Low,
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Volume: kline.Volume,
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QuoteVolume: kline.QuoteVolume,
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// Bitget doesn't support close flag in REST API
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Closed: false,
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}
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}
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return gKLines
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}
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func toGlobalTimeInForce(force v2.OrderForce) (types.TimeInForce, error) {
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switch force {
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case v2.OrderForceFOK:
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return types.TimeInForceFOK, nil
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case v2.OrderForceGTC, v2.OrderForcePostOnly:
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return types.TimeInForceGTC, nil
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case v2.OrderForceIOC:
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return types.TimeInForceIOC, nil
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default:
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return "", fmt.Errorf("unexpected time-in-force: %s", force)
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}
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}
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func (o *Order) processMarketBuyQuantity() (fixedpoint.Value, error) {
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switch o.Status {
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case v2.OrderStatusLive, v2.OrderStatusNew, v2.OrderStatusInit, v2.OrderStatusCancelled:
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return fixedpoint.Zero, nil
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case v2.OrderStatusPartialFilled:
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if o.FillPrice.IsZero() {
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return fixedpoint.Zero, fmt.Errorf("fillPrice for a partialFilled should not be zero")
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}
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return o.NewSize.Div(o.FillPrice), nil
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case v2.OrderStatusFilled:
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return o.AccBaseVolume, nil
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default:
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return fixedpoint.Zero, fmt.Errorf("unexpected status: %s", o.Status)
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}
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}
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func (o *Order) toGlobalOrder() (types.Order, error) {
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side, err := toGlobalSideType(o.Side)
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if err != nil {
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return types.Order{}, err
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}
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orderType, err := toGlobalOrderType(o.OrderType)
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if err != nil {
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return types.Order{}, err
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}
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timeInForce, err := toGlobalTimeInForce(o.Force)
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if err != nil {
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return types.Order{}, err
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}
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status, err := toGlobalOrderStatus(o.Status)
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if err != nil {
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return types.Order{}, err
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}
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qty := o.NewSize
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if orderType == types.OrderTypeMarket && side == types.SideTypeBuy {
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qty, err = o.processMarketBuyQuantity()
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if err != nil {
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return types.Order{}, err
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}
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}
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price := o.Price
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if orderType == types.OrderTypeMarket {
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price = o.PriceAvg
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}
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return types.Order{
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SubmitOrder: types.SubmitOrder{
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ClientOrderID: o.ClientOrderId,
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Symbol: o.InstId,
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Side: side,
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Type: orderType,
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Quantity: qty,
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Price: price,
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TimeInForce: timeInForce,
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},
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Exchange: types.ExchangeBitget,
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OrderID: uint64(o.OrderId),
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UUID: strconv.FormatInt(int64(o.OrderId), 10),
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Status: status,
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ExecutedQuantity: o.AccBaseVolume,
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IsWorking: o.Status.IsWorking(),
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CreationTime: types.Time(o.CreatedTime.Time()),
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UpdateTime: types.Time(o.UpdatedTime.Time()),
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}, nil
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}
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func (o *Order) toGlobalTrade() (types.Trade, error) {
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if o.Status != v2.OrderStatusPartialFilled {
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return types.Trade{}, fmt.Errorf("failed to convert to global trade, unexpected status: %s", o.Status)
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}
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side, err := toGlobalSideType(o.Side)
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if err != nil {
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return types.Trade{}, err
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}
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isMaker, err := o.isMaker()
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if err != nil {
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return types.Trade{}, err
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}
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return types.Trade{
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ID: uint64(o.TradeId),
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OrderID: uint64(o.OrderId),
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Exchange: types.ExchangeBitget,
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Price: o.FillPrice,
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Quantity: o.BaseVolume,
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QuoteQuantity: o.FillPrice.Mul(o.BaseVolume),
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Symbol: o.InstId,
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Side: side,
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IsBuyer: side == types.SideTypeBuy,
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IsMaker: isMaker,
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Time: types.Time(o.FillTime),
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Fee: o.FillFee.Abs(),
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FeeCurrency: o.FillFeeCoin,
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}, nil
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}
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