/*
 * This file is part of the KubeVirt project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Copyright The KubeVirt Authors.
 *
 */
package apply

import (
	virtv1 "kubevirt.io/api/core/v1"
	v1beta1 "kubevirt.io/api/instancetype/v1beta1"
)

func applyClockPreferences(preferenceSpec *v1beta1.VirtualMachinePreferenceSpec, vmiSpec *virtv1.VirtualMachineInstanceSpec) {
	if preferenceSpec.Clock == nil {
		return
	}

	if vmiSpec.Domain.Clock == nil {
		vmiSpec.Domain.Clock = &virtv1.Clock{}
	}

	// We don't want to allow a partial overwrite here so only replace when nothing is set
	if preferenceSpec.Clock.PreferredClockOffset != nil &&
		vmiSpec.Domain.Clock.ClockOffset.UTC == nil &&
		vmiSpec.Domain.Clock.ClockOffset.Timezone == nil {
		vmiSpec.Domain.Clock.ClockOffset = *preferenceSpec.Clock.PreferredClockOffset.DeepCopy()
	}

	if preferenceSpec.Clock.PreferredTimer != nil && vmiSpec.Domain.Clock.Timer == nil {
		vmiSpec.Domain.Clock.Timer = preferenceSpec.Clock.PreferredTimer.DeepCopy()
	}
}
