package federatedservice

import (
	"k8s.io/apimachinery/pkg/runtime"
	"kubesphere.io/kubesphere/pkg/api"
	"kubesphere.io/kubesphere/pkg/apis/types/v1beta1"
	"kubesphere.io/kubesphere/pkg/apiserver/query"
	informers "kubesphere.io/kubesphere/pkg/client/informers/externalversions"
	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3"
)

type federatedServiceGetter struct {
	informer informers.SharedInformerFactory
}

func New(informer informers.SharedInformerFactory) v1alpha3.Interface {
	return &federatedServiceGetter{
		informer: informer,
	}
}

func (f *federatedServiceGetter) Get(namespace, name string) (runtime.Object, error) {
	return f.informer.Types().V1beta1().FederatedServices().Lister().FederatedServices(namespace).Get(name)
}

func (f *federatedServiceGetter) List(namespace string, query *query.Query) (*api.ListResult, error) {
	federatedServices, err := f.informer.Types().V1beta1().FederatedServices().Lister().FederatedServices(namespace).List(query.Selector())
	if err != nil {
		return nil, err
	}

	var result []runtime.Object
	for _, fedService := range federatedServices {
		result = append(result, fedService)
	}

	return v1alpha3.DefaultList(result, query, f.compare, f.filter), nil
}

func (f *federatedServiceGetter) compare(left runtime.Object, right runtime.Object, field query.Field) bool {
	leftService, ok := left.(*v1beta1.FederatedService)
	if !ok {
		return false
	}

	rightService, ok := right.(*v1beta1.FederatedService)
	if !ok {
		return false
	}

	return v1alpha3.DefaultObjectMetaCompare(leftService.ObjectMeta, rightService.ObjectMeta, field)
}

func (f *federatedServiceGetter) filter(object runtime.Object, filter query.Filter) bool {
	service, ok := object.(*v1beta1.FederatedService)
	if !ok {
		return false
	}

	return v1alpha3.DefaultObjectMetaFilter(service.ObjectMeta, filter)
}