package multitenant

import (
	"context"

	"go.uber.org/zap"
	"k8s.io/client-go/kubernetes"

	fv1 "github.com/fission/fission/pkg/apis/core/v1"
	"github.com/fission/fission/pkg/executor/executortype"
	"github.com/fission/fission/pkg/utils"
	"github.com/fission/fission/pkg/utils/manager"
)

func NewNamespaceSubscriber(
	logger *zap.Logger,
	kubernetesClient kubernetes.Interface,
	executorTypes map[fv1.ExecutorType]executortype.ExecutorType,
	mgr manager.Interface,
) utils.NamespaceSubscriber {
	return utils.NamespaceSubscriberFuncs{
		SubscriberName: "executor",
		AddFunc: func(ctx context.Context, record utils.NamespaceRecord) error {
			return registerNamespace(ctx, logger, kubernetesClient, record.Name, executorTypes, mgr)
		},
		RemoveFunc: func(ctx context.Context, record utils.NamespaceRecord) error {
			return deregisterNamespace(ctx, logger, record.Name, executorTypes)
		},
		ResyncFunc: func(ctx context.Context, record utils.NamespaceRecord) error {
			// Reconciler calls this for namespaces in NamespacePhaseFailed.
			// registerNamespace is idempotent: SA creation is a no-op if SA exists,
			// executor type AddNamespace guards against duplicate informer creation.
			return registerNamespace(ctx, logger, kubernetesClient, record.Name, executorTypes, mgr)
		},
	}
}