package indicator

import (
	"sig-pub/pkg/types"

	"github.com/markcheno/go-talib"
)

// todo macdSignal(信号线) macdHist(柱状图)
type MACD struct {
}

func (c *MACD) Name() string {
	return "macd"
}

func (c *MACD) RequiredSeries(window int16, in types.Input) int16 {
	return window
}

// Calculate 计算单根k线sma指标
func (c *MACD) Calculate(ctx IIndicatorContext, window int16) (vector float64) {
	fast := ctx.Input().Int("fast")
	slow := ctx.Input().Int("slow")

	// 计算eam
	closeSeries := ctx.Series(0, window).Close().Reverse()

	aa, bb, cc := talib.Macd(closeSeries, fast, slow, int(window))
	_, _, _ = aa, bb, cc

	vector = 0
	return
}