package features

import (
	"fmt"
	"time"
)

// ParseTTL converts a Go duration string to time.Duration
func ParseTTL(ttlString string) (time.Duration, error) {
	if ttlString == "" || ttlString == "0" {
		return 0, nil // No TTL
	}

	duration, err := time.ParseDuration(ttlString)
	if err != nil {
		return 0, fmt.Errorf("invalid TTL format: %v", err)
	}

	if duration < 0 {
		return 0, fmt.Errorf("TTL cannot be negative")
	}

	return duration, nil
}