exchange_go/services/futureservice/binancemarket.go

package futureservice

import (
	"bytes"
	"errors"
	"fmt"
	"go-admin/common/global"
	"go-admin/common/helper"
	"go-admin/config"
	"go-admin/pkg/utility"
	"go-admin/services/binanceservice"
	"go-admin/services/excservice"
	"sync"

	"go-admin/models"

	log "github.com/go-admin-team/go-admin-core/logger"

	"github.com/bytedance/sonic"
	"go.uber.org/zap"
)

var (
	baseBinanceWsUrlAll = "wss://fstream.binance.com/stream?streams="
	wsBin               *excservice.BinanceWs
	binSetKey           = make(map[string]bool)
	binSetKeyMu         sync.RWMutex

	quoteAssetSymbols = []string{"USDT"}
)

type BaseWsDepthStream struct {
	Stream string                  `json:"stream"` //
	Data   models.UFuturesDepthBin `json:"data"`   //数据
}

// StartBinanceProWs 启动币安现货市场推送
// workType: normal-常规任务 trigger-主动触发任务
func StartBinanceProWs(workType string) {
	if wsBin == nil {
		wsBin = excservice.NewBinanceWs(baseBinanceWsUrlAll, "")
	}

	if wsBin == nil {
		log.Error("实例化wsBin失败")
		return
	}

	if wsBin != nil && config.ExtConfig.ProxyUrl != "" {
		wsBin.SetProxyUrl(config.ExtConfig.ProxyUrl)
	}
	wsBin.WorkType = workType

	wsBin.SetAllCallbacks(HandleWsAll, HandleWsAllKline)
	//订阅所有行情
	subscribeAll(wsBin, "!miniTicker@arr")

}

func subscribeAll(ws *excservice.BinanceWs, subscribe string) {
	err := ws.SubscribeAll(subscribe)

	if err != nil {
		log.Error("订阅流失败", zap.String("streams", subscribe), zap.Error(err))
	} else {
		log.Info("发起订阅", subscribe)
	}
}

// HandleWsAll 处理从WebSocket接收到的消息
func HandleWsAll(msg []byte) {

	if bytes.Contains(msg, []byte("miniTicker@arr")) {
		handleTickerAllMessage(msg)
	}
}

/*
根据ws 推送值获取 symbol 和交易对信息
  - @dataMap 数据源  dataMap和symbol二选一
  - @symbol 交易对 dataMap和symbol二选一
*/
func getWsRespTradeSet(dataMap map[string]interface{}, symbol string, tradeSet *models.TradeSet) (string, error) {
	if symbol == "" {
		symbol = dataMap["s"].(string)

		if symbol == "" {
			return symbol, errors.New("交易对为空")
		}
	}
	cacheStr, err := helper.DefaultRedis.GetString(fmt.Sprintf(global.TICKER_FUTURES, global.EXCHANGE_BINANCE, symbol))

	if err != nil {
		// log.Error("获取缓存失败", symbol, err)
		return symbol, errors.New("获取缓存失败 " + err.Error())
	}

	err = sonic.Unmarshal([]byte(cacheStr), tradeSet)

	if err != nil {
		return symbol, errors.New("对象转换失败 " + err.Error())
	}

	return symbol, nil
}

// handleTickerMessage 处理ticker@all消息
func handleTickerAllMessage(msg []byte) {
	dataAll := tickerAllMessage{}
	if err := sonic.Unmarshal(msg, &dataAll); err != nil {
		log.Error("解码ticker@all消息失败", zap.Error(err))
		return
	}
	// dataMap, ok := dataAll["data"].([]map[string]interface{})
	if len(dataAll.Data) <= 0 {
		log.Error("ticker消息不包含有效数据字段")
		return
	}

	trades := make([]models.TradeSet, 0)

	for _, data := range dataAll.Data {
		symbol := data["s"].(string)

		if symbol == "" || !utility.HasSuffix(symbol, quoteAssetSymbols) {
			continue
		}

		tradeSet := models.TradeSet{}
		symbol, err := getWsRespTradeSet(data, "", &tradeSet)

		if err != nil {
			// log.Debug(symbol, "ticker@all ws处理失败", err)
			continue
		}
		tradeSet.LastPrice = utility.StringFloat64Cut(data["c"].(string), int32(tradeSet.PriceDigit))
		tradeSet.OpenPrice = utility.StrToFloatCut(data["o"].(string), int32(tradeSet.PriceDigit))
		tradeSet.HighPrice = utility.StringFloat64Cut(data["h"].(string), int32(tradeSet.PriceDigit))
		tradeSet.LowPrice = utility.StringFloat64Cut(data["l"].(string), int32(tradeSet.PriceDigit))
		tradeSet.Volume = utility.StringFloat64Cut(data["v"].(string), int32(tradeSet.AmountDigit))
		tradeSet.QuoteVolume = utility.StringFloat64Cut(data["q"].(string), 5)
		trades = append(trades, tradeSet)

		tradeSetVal, _ := sonic.MarshalString(&tradeSet)
		if tradeSetVal != "" {
			if err := helper.DefaultRedis.SetString(fmt.Sprintf(global.TICKER_FUTURES, global.EXCHANGE_BINANCE, symbol), tradeSetVal); err != nil {
				log.Error(symbol, "ticker@all ws处理失败", err)
			}
		}
	}

	if len(trades) > 0 {
		for index := range trades {
			//主单触发
			utility.SafeGoParam(binanceservice.JudgeFuturesPrice, trades[index])
			//减仓
			utility.SafeGoParam(binanceservice.JudgeFuturesReduce, trades[index])
			//加仓
			utility.SafeGoParam(binanceservice.JudgeFutAddPosition, trades[index])
		}
	}
}

// HandleWsAllKline 处理kline推送结果
func HandleWsAllKline(msg []byte, tradeSet models.TradeSet) {

}

type WskLineData struct {
	Line        string `json:"i"` //"1m",K线间隔
	Timestamp   int64  `json:"t"` // 这根K线的起始时间
	Open        string `json:"o"` // 这根K线期间第一笔成交价
	Close       string `json:"c"` // 这根K线期间末一笔成交价
	High        string `json:"h"` // 这根K线期间最高成交价
	Low         string `json:"l"` // 这根K线期间最低成交价
	Vol         string `json:"v"` // 这根K线期间成交量
	QuoteVolume string `json:"q"` // 这根K线期间成交额
}

type tickerAllMessage struct {
	Stream string                   `json:"stream"`
	Data   []map[string]interface{} `json:"data"`
}