package core

import (
	"context"
	"fmt"

	zitadelv1alpha1 "gitea.corredorconect.com/software-engineering/zitadel-resources-operator/api/v1alpha1"
	zitadelClient "gitea.corredorconect.com/software-engineering/zitadel-resources-operator/pkg/zitadel"
	apierrors "k8s.io/apimachinery/pkg/api/errors"
	"sigs.k8s.io/controller-runtime/pkg/client"
)

type CoreFinalizer struct {
	Client      client.Client
	RefResolver *zitadelv1alpha1.RefResolver

	WrappedFinalizer WrappedCoreFinalizer
}

func NewCoreFinalizer(client client.Client, wf WrappedCoreFinalizer) Finalizer {
	return &CoreFinalizer{
		Client:           client,
		RefResolver:      zitadelv1alpha1.NewRefResolver(client),
		WrappedFinalizer: wf,
	}
}

func (tf *CoreFinalizer) AddFinalizer(ctx context.Context) error {
	if tf.WrappedFinalizer.ContainsFinalizer() {
		return nil
	}
	if err := tf.WrappedFinalizer.AddFinalizer(ctx); err != nil {
		return fmt.Errorf("error adding finalizer in TemplateFinalizer: %v", err)
	}
	return nil
}

func (tf *CoreFinalizer) Finalize(ctx context.Context, resource Resource) error {
	if !tf.WrappedFinalizer.ContainsFinalizer() {
		return nil
	}

	connectionRef, err := resource.ConnectionRef(ctx, tf.RefResolver)
	if err != nil {
		return err
	}

	connection, err := tf.RefResolver.ConnectionRef(ctx, connectionRef, resource.GetNamespace())
	if err != nil {
		if apierrors.IsNotFound(err) {
			if err := tf.WrappedFinalizer.RemoveFinalizer(ctx); err != nil {
				return fmt.Errorf("error removing %s finalizer: %v", resource.GetName(), err)
			}
			return nil
		}
		return fmt.Errorf("error getting Cluster: %v", err)
	}

	ztdClient, err := zitadelClient.NewV2Client(ctx, connection, *tf.RefResolver)
	if err != nil {
		return fmt.Errorf("error connecting to Zitadel: %v", err)
	}
	defer ztdClient.Close()

	if err := tf.WrappedFinalizer.Reconcile(ctx, ztdClient); err != nil {
		return fmt.Errorf("error reconciling in TemplateFinalizer: %v", err)
	}

	if err := tf.WrappedFinalizer.RemoveFinalizer(ctx); err != nil {
		return fmt.Errorf("error removing finalizer in TemplateFinalizer: %v", err)
	}
	return nil
}