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package tools
import (
"time"
)
// IsExpiredAtOrIn returns whether or not the result of calling TimeAtOrIn is
// "expired" within "until" units of time from now.
func IsExpiredAtOrIn(from time.Time, until time.Duration, at time.Time, in time.Duration) (time.Time, bool) {
expiration := TimeAtOrIn(from, at, in)
if expiration.IsZero() {
return expiration, false
}
return expiration, expiration.Before(time.Now().Add(until))
}
// TimeAtOrIn returns either "at", or the "in" duration added to the current
// time. TimeAtOrIn prefers to add a duration rather than return the "at"
// parameter.
func TimeAtOrIn(from, at time.Time, in time.Duration) time.Time {
if in == 0 {
return at
}
return from.Add(in)
}
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