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|
package service
import (
"math/rand"
"time"
)
type Duration struct {
time.Duration
}
func DurationRef(v time.Duration) *Duration {
return &Duration{v}
}
func (s Duration) MarshalText() ([]byte, error) {
return []byte(s.Duration.String()), nil
}
func (s *Duration) Max(args ...*Duration) Duration {
m := s
for _, o := range args {
if m.Duration < o.Duration {
v := o
m = v
}
}
return *m
}
func (s *Duration) Min(args ...*Duration) Duration {
m := s
for _, o := range args {
if m.Duration > o.Duration {
v := o
m = v
}
}
return *m
}
func (s *Duration) UnmarshalText(text []byte) error {
v, err := time.ParseDuration(string(text))
if err != nil {
return err
}
*s = Duration{v}
return nil
}
func RandomDuration(from Duration, until Duration) Duration {
period := until.Duration - from.Duration
return Duration{from.Duration + time.Duration(rand.Intn(int(period)))}
}
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