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time.go
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time.go
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package lib
import (
"fmt"
"math"
"time"
)
const (
Minute = 60
Hour = 60 * Minute
Day = 24 * Hour
Week = 7 * Day
// https://www.unixtimestamp.com
// https://www.jotform.com/help/443-mastering-date-and-time-calculation/
Month = 2629743 // 30.44 days
Year = 31556926 // 365.24 days
LongTime = 37 * Year
)
func TimeDuration(diff time.Duration) string {
diff /= time.Second
lbl := "from now"
after := diff > 0
if after {
lbl = "ago"
diff *= 1
} else {
diff *= -1
}
switch {
case diff <= 0:
return "now"
case diff < 1*Minute:
return fmt.Sprintf("%dsec %s", diff, lbl)
case diff < 1*Hour:
return fmt.Sprintf("%dmin %dsec %s",
int64(math.Floor(float64((diff%Day)%Hour/Minute))),
int64(math.Mod(float64(diff), 60)),
lbl)
case diff < 1*Day:
return fmt.Sprintf("%dhr %dmin %dsec %s",
int64(math.Floor(float64(diff%Day/Hour))),
int64(math.Floor(float64((diff%Day)%Hour/Minute))),
int64(math.Mod(float64(diff), 60)),
lbl)
case diff < 1*Month:
return fmt.Sprintf("%dd %dhr %dmin %dsec %s",
int64(math.Floor(float64((diff%Year)%Month/Day))),
int64(math.Floor(float64(diff%Day/Hour))),
int64(math.Floor(float64((diff%Day)%Hour/Minute))),
int64(math.Mod(float64(diff), 60)),
lbl)
case diff < 1*Year:
return fmt.Sprintf("%dmo %dd %dhr %dmin %dsec %s",
int64(math.Floor(float64(diff%Year/Month))),
int64(math.Floor(float64((diff%Year)%Month/Day))),
int64(math.Floor(float64(diff%Day/Hour))),
int64(math.Floor(float64((diff%Day)%Hour/Minute))),
int64(math.Mod(float64(diff), 60)),
lbl)
case diff < LongTime:
return fmt.Sprintf("%dyr %dmo %dd %dhr %dmin %dsec %s",
int64(math.Floor(float64(diff/Year))),
int64(math.Floor(float64(diff%Year/Month))),
int64(math.Floor(float64((diff%Year)%Month/Day))),
int64(math.Floor(float64(diff%Day/Hour))),
int64(math.Floor(float64((diff%Day)%Hour/Minute))),
int64(math.Mod(float64(diff), 60)),
lbl)
}
return "long ago"
}