package utils

import (
	"fmt"
	"time"
)

// HumanDuration converts a time.Duration into a human-readable format.
// It returns the duration formatted as seconds (with two decimal places) if the duration is one second or more,
// milliseconds if the duration is one millisecond or more,
// microseconds if the duration is one microsecond or more,
// otherwise nanoseconds.
func HumanDuration(duration time.Duration) string {
	switch {
	case duration.Seconds() >= 1:
		return fmt.Sprintf("%.2fs", duration.Seconds())
	case duration.Milliseconds() >= 1:
		return fmt.Sprintf("%dms", duration.Milliseconds())
	case duration.Microseconds() >= 1:
		return fmt.Sprintf("%dμs", duration.Microseconds())
	default:
		return fmt.Sprintf("%dns", duration.Nanoseconds())
	}
}