func (order StatusOrder) Execute(client bitcoin.Client) (err error) {
if order.status == ORDER_KEEP {
fmt.Printf("Keep order %v\n", order)
return
}
if order.status == ORDER_REMOVE {
return client.CancelOrder(order.Order.Id)
}
if order.Type == bitcoin.BUY_ORDER {
return client.Buy(order.Price, order.Amount)
} else {
return client.Sell(order.Price, order.Amount)
}
}
func main() {
initFlags()
var client bitcoin.Client
if flagExchange == "bitstamp" {
client = bitstamp.NewClient(flagClientId, flagApiKey, flagApiSecret)
} else if flagExchange == "bitfinex" {
client = bitfinex.NewClient(flagApiKey, flagApiSecret)
} else if flagExchange == "kraken" {
client = kraken.NewClient(flagApiKey, flagApiSecret)
} else {
fmt.Printf("Unknown exchange: %v\n", flagExchange)
os.Exit(1)
}
client.SetDryRun(flagTest)
openOrders, err := client.OpenOrders()
if err != nil {
fmt.Printf("Error open orders: %v\n", err)
return
}
if flagTest {
fmt.Printf("%v open orders:\n", len(openOrders))
for _, order := range openOrders {
fmt.Printf("%v\n", order)
}
} else {
if len(openOrders) == 4 {
return
}
}
orderMap := make(map[string]*StatusOrder)
for _, order := range openOrders {
orderMap[order.String()] = &StatusOrder{order, ORDER_REMOVE}
}
A, err := client.Balance(bitcoin.FIAT)
if err != nil {
fmt.Printf("Error balance: %v\n", err)
return
}
b, err := client.Balance(bitcoin.BTC)
if err != nil {
fmt.Printf("Error balance: %v\n", err)
return
}
A += flagOffsetUsd
b += flagOffsetBtc
R := flagBtcRatio / (1 - flagBtcRatio)
F, err := client.Fee()
if err != nil {
fmt.Printf("Error fee: %v\n", err)
return
}
if flagSpread < 200*F {
fmt.Printf(
"spread (%.2f%%) must be at least twice the fee (%.2f%%) "+
"not to make a loss.\n", flagSpread, 100*F)
return
}
s := 1 + (flagSpread / 100)
previousRate := R * A / b
fmt.Printf("Rate = %.2f\n", previousRate)
fmt.Printf("Fiat = %v\n", A)
fmt.Printf("BTC = %v\n", b)
fmt.Printf("Fee = %v\n", F)
placeBuyOrders(A, b, R, F, s, orderMap)
placeSellOrders(A, b, R, F, s, orderMap)
for _, order := range orderMap {
err := order.Execute(client)
if err != nil {
fmt.Printf("Error executing order: %v: %v\n", order, err)
}
}
}