storj/satellite/compensation/helpers.go

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// Copyright (C) 2020 Storj Labs, Inc.
// See LICENSE for copying information.
package compensation
import (
"time"
"github.com/shopspring/decimal"
)
var (
oneHundred = decimal.NewFromInt(100)
)
// NodeWithheldPercent returns the percentage that should be withheld and if the node is still
// in the withholding period based on its creation date.
func NodeWithheldPercent(withheldPercents []int, nodeCreatedAt, endDate time.Time) (int, bool) {
for i, withheldPercent := range withheldPercents {
if nodeCreatedAt.AddDate(0, i+1, 0).After(endDate) {
return withheldPercent, true
}
}
return 0, false
}
// PercentOf sets v to a percentage of itself. For example if v was 200 and
// percent was 20, v would be set to 40.
func PercentOf(v, percent decimal.Decimal) decimal.Decimal {
return v.Mul(percent).Div(oneHundred)
}