Function processPercentageDistributions

model/transaction.go:195–222

processPercentageDistributions handles the second pass: percentage distributions

(distributions []Distribution, state *distributionState)

// processPercentageDistributions handles the second pass: percentage distributions
func processPercentageDistributions(distributions []Distribution, state *distributionState) error {
	hundredDec := decimal.NewFromInt(100)
	minValueDec := decimal.NewFromInt(1)

	for _, dist := range distributions {
		if dist.isLeftDistribution() || !dist.isPercentageDistribution() {
			continue
		}

		percentageStr := dist.Distribution[:len(dist.Distribution)-1]
		percentage, err := strconv.ParseFloat(percentageStr, 64)
		if err != nil {
			return errors.New("invalid percentage format")
		}

		percentageDec := decimal.NewFromFloat(percentage)
		state.totalPercentage = state.totalPercentage.Add(percentageDec)

		rawAmountDec := state.totalAmountDec.Mul(percentageDec).Div(hundredDec)

		if rawAmountDec.Sign() > 0 && rawAmountDec.Cmp(minValueDec) < 0 {
			state.percentAmounts[dist.Identifier] = decimal.Zero
		} else {
			state.percentAmounts[dist.Identifier] = rawAmountDec
		}
	}
	return nil
}

// validateDistributions checks that total distributions don't exceed limits
func validateDistributions(state *distributionState) error {