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/v3/pkg/client/management"
	"github.com/zitadel/zitadel-go/v3/pkg/client/middleware"
	pb "github.com/zitadel/zitadel-go/v3/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 (
	organizationFinalizerName = "organization.zitadel.topmanage.com/organization"
)

type wrappedOrganizationFinalizer struct {
	client.Client
	organization *zitadelv1alpha1.Organization
}

func newWrappedOrganizationFinalizer(client client.Client, organization *zitadelv1alpha1.Organization) zitadel.WrappedFinalizer {
	return &wrappedOrganizationFinalizer{
		Client:       client,
		organization: organization,
	}
}

func (wf *wrappedOrganizationFinalizer) AddFinalizer(ctx context.Context) error {
	if wf.ContainsFinalizer() {
		return nil
	}
	return wf.patch(ctx, wf.organization, func(organization *zitadelv1alpha1.Organization) {
		controllerutil.AddFinalizer(organization, organizationFinalizerName)
	})
}

func (wf *wrappedOrganizationFinalizer) RemoveFinalizer(ctx context.Context) error {
	if !wf.ContainsFinalizer() {
		return nil
	}
	return wf.patch(ctx, wf.organization, func(organization *zitadelv1alpha1.Organization) {
		controllerutil.RemoveFinalizer(wf.organization, organizationFinalizerName)
	})
}

func (wr *wrappedOrganizationFinalizer) ContainsFinalizer() bool {
	return controllerutil.ContainsFinalizer(wr.organization, organizationFinalizerName)
}

func (wf *wrappedOrganizationFinalizer) Reconcile(ctx context.Context, ztdClient *management.Client) error {
	if wf.organization.Status.OrgId == "" {
		return nil
	}
	{
		_, err := ztdClient.GetMyOrg(middleware.SetOrgID(ctx, wf.organization.Status.OrgId), &pb.GetMyOrgRequest{})
		if err != nil {
			if strings.Contains(err.Error(), `Organisation doesn't exist`) {
				return nil
			}
			return err
		}
	}
	_, err := ztdClient.RemoveOrg(middleware.SetOrgID(ctx, wf.organization.Status.OrgId), &pb.RemoveOrgRequest{})
	if err != nil {
		return err
	}
	return nil
}

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

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