//nolint:revive
package v2

import (
	runtime "k8s.io/apimachinery/pkg/runtime"
	ctrl "sigs.k8s.io/controller-runtime"
	"sigs.k8s.io/controller-runtime/pkg/conversion"
	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"

	v1 "edge-infra.dev/pkg/sds/display/k8s/apis/v1"
)

// +kubebuilder:webhook:verbs=create;update,path=/validate-display-edge-ncr-com-v2-nodedisplayconfig,mutating=false,failurePolicy=fail,groups=display.edge.ncr.com,resources=nodedisplayconfigs,versions=v2,name=v2-nodedisplayconfig-validation-webhook.display.edge.ncr.com,sideEffects=None,admissionReviewVersions=v1

func (nodeDisplayConfig *NodeDisplayConfig) SetupWebhookWithManager(mgr ctrl.Manager) error {
	return ctrl.NewWebhookManagedBy(mgr).For(nodeDisplayConfig).Complete()
}

// NodeDisplayConfig must satisfy the Validator interface for the validation webhook to start.
var _ admission.Validator = &NodeDisplayConfig{}

func (nodeDisplayConfig *NodeDisplayConfig) ValidateCreate() (admission.Warnings, error) {
	return nil, nodeDisplayConfig.Spec.Validate()
}

func (nodeDisplayConfig *NodeDisplayConfig) ValidateUpdate(runtime.Object) (admission.Warnings, error) {
	return nil, nodeDisplayConfig.Spec.Validate()
}

func (*NodeDisplayConfig) ValidateDelete() (admission.Warnings, error) {
	// delete requests are always valid
	return nil, nil
}

// v2 NodeDisplayConfig must be convertible to and from the hub
// version (v1) for the conversion webhook to start.
var _ conversion.Convertible = &NodeDisplayConfig{}

// Converts V1 to V2.
//
// This simply copies the V1 spec into the V2 NodeDisplayConfig
// to be upgraded by displayctl later on.
func (dst *NodeDisplayConfig) ConvertFrom(src conversion.Hub) error {
	nodeDisplayConfig := src.(*v1.NodeDisplayConfig)
	dst.ObjectMeta = nodeDisplayConfig.ObjectMeta
	dst.Spec = &DisplayConfig{
		V1: nodeDisplayConfig.Spec,
	}
	return nil
}

// Converts V2 to V1.
//
// V1 is deprecated and not in use. Conversion from V2 to V1
// is unsupported and simply removes the spec from the object.
// As V2 is the stored version there is no data loss and the
// spec can always be retrieved via the V2 API.
func (src *NodeDisplayConfig) ConvertTo(dst conversion.Hub) error {
	nodeDisplayConfig := dst.(*v1.NodeDisplayConfig)
	nodeDisplayConfig.ObjectMeta = src.ObjectMeta
	nodeDisplayConfig.Spec = nil
	return nil
}