package object

import (
	"strconv"

	objectV2 "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/api/object"
	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
)

// AddressOf returns the address of the object.
func AddressOf(obj *objectSDK.Object) oid.Address {
	var addr oid.Address

	id, ok := obj.ID()
	if ok {
		addr.SetObject(id)
	}

	cnr, ok := obj.ContainerID()
	if ok {
		addr.SetContainer(cnr)
	}

	return addr
}

// GetExpirationEpoch returns the expiration epoch of the object.
func GetExpirationEpoch(obj *objectSDK.Object) (has bool, epoch uint64, err error) {
	attrs := obj.Attributes()

	if header := obj.ECHeader(); header != nil {
		attrs = header.ParentAttributes()
	}

	for _, attr := range attrs {
		if attr.Key() != objectV2.SysAttributeExpEpoch {
			continue
		}

		epoch, err := strconv.ParseUint(attr.Value(), 10, 64)
		if err != nil {
			return false, 0, err
		}
		return true, epoch, nil
	}
	return
}