package generation

import (
	kyvernov1 "github.com/kyverno/kyverno/api/kyverno/v1"
	kyvernov1beta1 "github.com/kyverno/kyverno/api/kyverno/v1beta1"
	"github.com/kyverno/kyverno/pkg/background/common"
	"github.com/kyverno/kyverno/pkg/engine"
	datautils "github.com/kyverno/kyverno/pkg/utils/data"
	admissionv1 "k8s.io/api/admission/v1"
)

func buildURSpec(requestType kyvernov1beta1.RequestType, policyKey, ruleName string, resource kyvernov1.ResourceSpec, deleteDownstream bool) kyvernov1beta1.UpdateRequestSpec {
	return kyvernov1beta1.UpdateRequestSpec{
		Type:             requestType,
		Policy:           policyKey,
		Rule:             ruleName,
		Resource:         resource,
		DeleteDownstream: deleteDownstream,
	}
}

func buildURContext(request admissionv1.AdmissionRequest, policyContext *engine.PolicyContext) kyvernov1beta1.UpdateRequestSpecContext {
	return kyvernov1beta1.UpdateRequestSpecContext{
		UserRequestInfo: policyContext.AdmissionInfo(),
		AdmissionRequestInfo: kyvernov1beta1.AdmissionRequestInfoObject{
			AdmissionRequest: &request,
			Operation:        request.Operation,
		},
	}
}

func matchDeleteOperation(rule kyvernov1.Rule) bool {
	ops := rule.MatchResources.GetOperations()
	for _, rscFilters := range append(rule.MatchResources.All, rule.MatchResources.Any...) {
		ops = append(ops, rscFilters.ResourceDescription.GetOperations()...)
	}

	return datautils.SliceContains(ops, string(admissionv1.Delete))
}

func compareLabels(new, old map[string]string) bool {
	if new == nil {
		return true
	}
	if new[common.GeneratePolicyLabel] != old[common.GeneratePolicyLabel] ||
		new[common.GeneratePolicyNamespaceLabel] != old[common.GeneratePolicyNamespaceLabel] ||
		new[common.GenerateRuleLabel] != old[common.GenerateRuleLabel] ||
		new[common.GenerateTriggerNameLabel] != old[common.GenerateTriggerNameLabel] ||
		new[common.GenerateTriggerNSLabel] != old[common.GenerateTriggerNSLabel] ||
		new[common.GenerateTriggerKindLabel] != old[common.GenerateTriggerKindLabel] {
		return false
	}
	return true
}