package controller

import (
	"strings"

	zitadelv1alpha1 "bitbucket.org/topmanage-software-engineering/zitadel-k8s-operator/src/api/v1alpha1"
	"bitbucket.org/topmanage-software-engineering/zitadel-k8s-operator/src/pkg/controller/zitadel"

	"context"
	"fmt"

	"github.com/zitadel/zitadel-go/v2/pkg/client/management"
	"github.com/zitadel/zitadel-go/v2/pkg/client/middleware"
	pb "github.com/zitadel/zitadel-go/v2/pkg/client/zitadel/management"
	"sigs.k8s.io/controller-runtime/pkg/client"
	ctrlClient "sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
)

const (
	APIAppFinalizerName = "apiapp.zitadel.topmanage.com/apiapp"
)

type wrappedAPIAppFinalizer struct {
	client.Client
	APIApp      *zitadelv1alpha1.APIApp
	refresolver *zitadelv1alpha1.RefResolver
}

func newWrappedAPIAppFinalizer(client client.Client, APIApp *zitadelv1alpha1.APIApp, refresolver *zitadelv1alpha1.RefResolver) zitadel.WrappedFinalizer {
	return &wrappedAPIAppFinalizer{
		Client:      client,
		APIApp:      APIApp,
		refresolver: refresolver,
	}
}

func (wf *wrappedAPIAppFinalizer) AddFinalizer(ctx context.Context) error {
	if wf.ContainsFinalizer() {
		return nil
	}
	return wf.patch(ctx, wf.APIApp, func(APIApp *zitadelv1alpha1.APIApp) {
		controllerutil.AddFinalizer(APIApp, APIAppFinalizerName)
	})
}

func (wf *wrappedAPIAppFinalizer) RemoveFinalizer(ctx context.Context) error {
	if !wf.ContainsFinalizer() {
		return nil
	}
	return wf.patch(ctx, wf.APIApp, func(APIApp *zitadelv1alpha1.APIApp) {
		controllerutil.RemoveFinalizer(wf.APIApp, APIAppFinalizerName)
	})
}

func (wr *wrappedAPIAppFinalizer) ContainsFinalizer() bool {
	return controllerutil.ContainsFinalizer(wr.APIApp, APIAppFinalizerName)
}

func (wf *wrappedAPIAppFinalizer) Reconcile(ctx context.Context, ztdClient *management.Client) error {
	if wf.APIApp.Status.AppId == "" {
		return nil
	}
	org, err := wf.APIApp.Organization(ctx, wf.refresolver)
	if err != nil {
		return err
	}
	project, err := wf.APIApp.Project(ctx, wf.refresolver)
	if err != nil {
		return err
	}
	_, err = ztdClient.RemoveApp(middleware.SetOrgID(ctx, org.Status.OrgId), &pb.RemoveAppRequest{ProjectId: project.Status.ProjectId, AppId: wf.APIApp.Status.AppId})
	if err != nil {
		if strings.Contains(err.Error(), "doesn't exist") {
			return nil
		}
		return err
	}
	return nil
}

func (wr *wrappedAPIAppFinalizer) patch(ctx context.Context, APIApp *zitadelv1alpha1.APIApp,
	patchFn func(*zitadelv1alpha1.APIApp)) error {
	patch := ctrlClient.MergeFrom(APIApp.DeepCopy())
	patchFn(APIApp)

	if err := wr.Client.Patch(ctx, APIApp, patch); err != nil {
		return fmt.Errorf("error patching APIApp finalizer: %v", err)
	}
	return nil
}