package updates

// PackageUpdate is one pending update. On Linux it is a package with a version
// on each side. On Windows CurrentVersion is empty and NewVersion carries the
// KB article ID: a Windows update is not a version bump of a named package,
// and inventing a current version would put a wrong string in front of an
// operator.
type PackageUpdate struct {
	Name           string
	CurrentVersion string
	NewVersion     string
}

// CheckAvailable lists pending OS updates.
func CheckAvailable() ([]PackageUpdate, error) { return checkAvailable() }

// ApplyAll installs every pending update. It never reboots: a control plane
// silently restarting a production server is unrecoverable from the UI, so the
// reboot stays a decision a person or a workflow makes. RebootRequired reports
// when one is owed.
func ApplyAll() error { return applyAll() }

// RebootRequired reports whether this host is waiting on a restart.
func RebootRequired() bool { return rebootRequired() }