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126 lines
2.7 KiB
Go
126 lines
2.7 KiB
Go
package protocol
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import (
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"errors"
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"fmt"
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)
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type MinuteTradeReq struct {
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Exchange Exchange
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Code string
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Start uint16
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Count uint16
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}
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func (req MinuteTradeReq) Check() error {
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if len(req.Code) != 6 {
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return errors.New("股票代码长度错误")
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}
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if req.Count > 1800 {
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return errors.New("数量不能超过1800")
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}
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return nil
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}
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type MinuteTradeResp struct {
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Count uint16
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List []*MinuteTrade
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}
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// MinuteTrade 分时成交，todo 时间没有到秒，客户端上也没有,东方客户端能显示秒
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type MinuteTrade struct {
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Time string //时间
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Price Price //价格
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Volume int //成交量
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Number int //单数,历史数据改字段无效
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Status int //0是买，1是卖，2无效（汇总出现）
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}
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func (this *MinuteTrade) String() string {
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return fmt.Sprintf("%s \t%-6s \t%-6s \t%-6d(手) \t%-4d(单) \t%-4s",
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this.Time, this.Price, this.Amount(), this.Volume, this.Number, this.StatusString())
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}
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// Amount 成交额
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func (this *MinuteTrade) Amount() Price {
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return this.Price * Price(this.Volume) * 100
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}
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func (this *MinuteTrade) StatusString() string {
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switch this.Status {
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case 0:
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return "买入"
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case 1:
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return "卖出"
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default:
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return ""
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}
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}
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// AvgVolume 平均每单成交量
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func (this *MinuteTrade) AvgVolume() float64 {
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return float64(this.Volume) / float64(this.Number)
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}
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// AvgPrice 平均每单成交金额
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func (this *MinuteTrade) AvgPrice() Price {
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return Price(this.AvgVolume() * float64(this.Price) * 100)
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}
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// IsBuy 是否是买单
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func (this *MinuteTrade) IsBuy() bool {
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return this.Status == 0
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}
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// IsSell 是否是卖单
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func (this *MinuteTrade) IsSell() bool {
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return this.Status == 1
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}
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type minuteTrade struct{}
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func (minuteTrade) Frame(req MinuteTradeReq) (*Frame, error) {
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if err := req.Check(); err != nil {
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return nil, err
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}
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codeBs := []byte(req.Code)
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codeBs = append(codeBs, Bytes(req.Start)...)
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codeBs = append(codeBs, Bytes(req.Count)...)
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return &Frame{
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Control: Control01,
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Type: TypeMinuteTrade,
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Data: append([]byte{req.Exchange.Uint8(), 0x0}, codeBs...),
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}, nil
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}
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func (minuteTrade) Decode(bs []byte, code string) (*MinuteTradeResp, error) {
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if len(bs) < 2 {
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return nil, errors.New("数据长度不足")
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}
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resp := &MinuteTradeResp{
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Count: Uint16(bs[:2]),
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}
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bs = bs[2:]
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lastPrice := Price(0)
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for i := uint16(0); i < resp.Count; i++ {
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mt := &MinuteTrade{
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Time: GetHourMinute([2]byte(bs[:2])),
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}
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var sub Price
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bs, sub = GetPrice(bs[2:])
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lastPrice += sub
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mt.Price = lastPrice / basePrice(code)
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bs, mt.Volume = CutInt(bs)
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bs, mt.Number = CutInt(bs)
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bs, mt.Status = CutInt(bs)
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bs, _ = CutInt(bs) //这个得到的是0，不知道是啥
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resp.List = append(resp.List, mt)
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}
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return resp, nil
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}
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