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|
package cobol
import (
"fmt"
"time"
)
// this math isn't perfect but I don't care right now
// use time.
func FormatDuration(d time.Duration) string {
result := ""
// check if it's more than a year
years := int(d.Hours()) / (24 * 365)
if years > 0 {
result += fmt.Sprintf("%3d Y", years)
return result
}
/* was terrible
// check if it's more than a day
if days > 45 {
months := int(d.Hours()) % 12
result += fmt.Sprintf("%2d M", months)
return result
}
*/
days := int(d.Hours()) / 24
if days >= 2 {
result += fmt.Sprintf("%3d d", days)
return result
}
// check if it's more than an hour
hours := int(d.Hours()) % 24
if hours >= 2 {
result += fmt.Sprintf("%3d h", hours)
return result
}
// check if it's more than a minute
minutes := int(d.Minutes()) % 60
if minutes >= 2 {
result += fmt.Sprintf("%3d m", minutes)
return result
}
// check if it's more than a second
seconds := int(d.Seconds()) % 60
if seconds > 0 {
result += fmt.Sprintf("%3d s", seconds)
return result
}
// report in milliseconds
ms := int(d.Milliseconds())
if ms >= 100 {
// todo: print .3s, etc ?
}
if ms > 0 {
/*
if ms > 99 {
result += fmt.Sprintf("%-3dm", ms)
return result
}
*/
result += fmt.Sprintf("%3dms", ms)
return result
}
// report in milliseconds
mc := int(d.Microseconds())
if mc > 0 {
result += fmt.Sprintf("%3dmc", mc)
return result
}
ns := int(d.Nanoseconds())
result += fmt.Sprintf("%3dns", ns)
return result
}
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