package kvm

import (
	"fmt"
	"strings"
)

// The providerID carries the host, so Get/Delete stay correct after a
// placement.zone edit mid-replacement — re-reading the spec then would look
// at the wrong hypervisor.
func formatProviderID(host, name string) string {
	return fmt.Sprintf("hosts/%s/domains/%s", host, name)
}

func parseProviderID(id string) (host, name string, err error) {
	parts := strings.Split(id, "/")
	if len(parts) != 4 || parts[0] != "hosts" || parts[2] != "domains" || parts[1] == "" || parts[3] == "" {
		return "", "", fmt.Errorf("malformed kvm providerID %q, want hosts/<host>/domains/<name>", id)
	}
	return parts[1], parts[3], nil
}