The logic for determining if a buy or sell trade is recommended.

analyzer.go

func Analyzer() {
	readCsvFile()
	macd := NewMacd()
	rsi := NewRsi()
	trend := NewTrend()
	obv := NewObv()
	priceClose, err := decimal.NewFromString("0")
	volume, err := decimal.NewFromString("0")
	check(err)
	rsiB := false
	rsiS := false

	bldr.WriteString("\nInitial Cash $" + cash.RoundBank(2).String() + ", Initial Eth " +
		eth.RoundBank(2).String() + ", Initial Portfolio value $" + (cash.Add(eth.Mul(priceClose)).RoundBank(2).String()))
	tradeworthy := false
	for i, snap := range ethSnaps {
		priceClose, err = decimal.NewFromString(snap.price)
		check(err)
		volume, err = decimal.NewFromString(snap.volume)
		check(err)
		if strings.Contains(snap.date, "2020-04-01") {
			testComplate(priceClose, snap.date)
			portfolioAdjustment()
		}
		macd.Update(priceClose)
		trend.Update(priceClose)
		rsi.Update(priceClose)
		obv.Update(priceClose, volume)
		rsiB = rsi.IsOverBought()
		rsiS = rsi.IsOverSold()
		if i > 26 {
			if rsiB && macd.Hdn {
				sell(snap)
				tradeworthy = true
			}
			if rsiS && macd.Hup {
				buy(snap)
				tradeworthy = true
			}
		}
		if tradeworthy {
			bldr.WriteString("\nAfter trade, cash available $" + cash.RoundBank(2).String() + ", ETH available " +
				eth.RoundBank(2).String() + ", portfolio total $" + cash.Add(eth.Mul(priceClose)).RoundBank(2).String() + "\n")
			tradeworthy = false
		}
	}
}