package hostops

import (
	"time"

	"github.com/carlosframework/platform/internal/hostbox"
	"github.com/carlosframework/platform/internal/hostclaim"
)

func retirementScope(host, incarnation, target string, refs map[string]hostclaim.RetirementEvidenceRef) (hostclaim.ParkScope, error) {
	if target == "" || len(refs) == 0 {
		return hostclaim.ParkScope{}, ErrPending
	}
	var latest time.Time
	for box, ref := range refs {
		if ref.Box != box || ref.EvidenceAt.IsZero() {
			return hostclaim.ParkScope{}, ErrIdentity
		}
		if ref.EvidenceAt.After(latest) {
			latest = ref.EvidenceAt
		}
	}
	scope := hostclaim.ParkScope{Location: target, Incarnation: incarnation, EvidenceAt: latest, RequestLimit: hostbox.RequestLimit}
	return scope, scope.Validate(host)
}