fix(event handling): use internal pubsub for view update (#1118)

* start sub

* start implement subsciptions

* start subscription

* implementation for member done

* admin done

* fix: tests

* extend handlers

* prepary notification

* no errors in adminapi

* changed current sequence in all packages

* ignore mocks

* works

* subscriptions as singleton

* tests

* refactor: rename function scope var

internal/management/repository/eventsourcing/handler/project_grant.go

@@ -2,12 +2,12 @@ package handler
 
 import (
 	"context"
-	"time"
 
 	"github.com/caos/logging"
 
 	"github.com/caos/zitadel/internal/eventstore"
 	"github.com/caos/zitadel/internal/eventstore/models"
+	"github.com/caos/zitadel/internal/eventstore/query"
 	"github.com/caos/zitadel/internal/eventstore/spooler"
 	org_model "github.com/caos/zitadel/internal/org/model"
 	org_event "github.com/caos/zitadel/internal/org/repository/eventsourcing"
@@ -17,23 +17,60 @@ import (
 	view_model "github.com/caos/zitadel/internal/project/repository/view/model"
 )
 
-type ProjectGrant struct {
-	handler
-	eventstore    eventstore.Eventstore
-	projectEvents *proj_event.ProjectEventstore
-	orgEvents     *org_event.OrgEventstore
-}
-
 const (
 	grantedProjectTable = "management.project_grants"
 )
 
+type ProjectGrant struct {
+	handler
+	projectEvents *proj_event.ProjectEventstore
+	orgEvents     *org_event.OrgEventstore
+	subscription  *eventstore.Subscription
+}
+
+func newProjectGrant(
+	handler handler,
+	projectEvents *proj_event.ProjectEventstore,
+	orgEvents *org_event.OrgEventstore,
+) *ProjectGrant {
+	h := &ProjectGrant{
+		handler:       handler,
+		projectEvents: projectEvents,
+		orgEvents:     orgEvents,
+	}
+
+	h.subscribe()
+
+	return h
+}
+
+func (m *ProjectGrant) subscribe() {
+	m.subscription = m.es.Subscribe(m.AggregateTypes()...)
+	go func() {
+		for event := range m.subscription.Events {
+			query.ReduceEvent(m, event)
+		}
+	}()
+}
+
 func (p *ProjectGrant) ViewModel() string {
 	return grantedProjectTable
 }
 
+func (_ *ProjectGrant) AggregateTypes() []models.AggregateType {
+	return []models.AggregateType{es_model.ProjectAggregate}
+}
+
+func (p *ProjectGrant) CurrentSequence(event *models.Event) (uint64, error) {
+	sequence, err := p.view.GetLatestProjectGrantSequence(string(event.AggregateType))
+	if err != nil {
+		return 0, err
+	}
+	return sequence.CurrentSequence, nil
+}
+
 func (p *ProjectGrant) EventQuery() (*models.SearchQuery, error) {
-	sequence, err := p.view.GetLatestProjectGrantSequence()
+	sequence, err := p.view.GetLatestProjectGrantSequence("")
 	if err != nil {
 		return nil, err
 	}
@@ -48,7 +85,7 @@ func (p *ProjectGrant) Reduce(event *models.Event) (err error) {
 		if err != nil {
 			return err
 		}
-		return p.updateExistingProjects(project, event.Sequence, event.CreationDate)
+		return p.updateExistingProjects(project, event)
 	case es_model.ProjectGrantAdded:
 		err = grantedProject.AppendEvent(event)
 		if err != nil {
@@ -86,16 +123,16 @@ func (p *ProjectGrant) Reduce(event *models.Event) (err error) {
 		if err != nil {
 			return err
 		}
-		return p.view.DeleteProjectGrant(grant.GrantID, event.Sequence, event.CreationDate)
+		return p.view.DeleteProjectGrant(grant.GrantID, event)
 	case es_model.ProjectRemoved:
 		return p.view.DeleteProjectGrantsByProjectID(event.AggregateID)
 	default:
-		return p.view.ProcessedProjectGrantSequence(event.Sequence, event.CreationDate)
+		return p.view.ProcessedProjectGrantSequence(event)
 	}
 	if err != nil {
 		return err
 	}
-	return p.view.PutProjectGrant(grantedProject, event.CreationDate)
+	return p.view.PutProjectGrant(grantedProject, event)
 }
 
 func (p *ProjectGrant) fillOrgData(grantedProject *view_model.ProjectGrantView, org, resourceOwner *org_model.Org) {
@@ -107,7 +144,7 @@ func (p *ProjectGrant) getProject(projectID string) (*proj_model.Project, error)
 	return p.projectEvents.ProjectByID(context.Background(), projectID)
 }
 
-func (p *ProjectGrant) updateExistingProjects(project *view_model.ProjectView, sequence uint64, eventTimestamp time.Time) error {
+func (p *ProjectGrant) updateExistingProjects(project *view_model.ProjectView, event *models.Event) error {
 	projectGrants, err := p.view.ProjectGrantsByProjectID(project.ProjectID)
 	if err != nil {
 		logging.LogWithFields("SPOOL-los03", "id", project.ProjectID).WithError(err).Warn("could not update existing projects")
@@ -115,7 +152,7 @@ func (p *ProjectGrant) updateExistingProjects(project *view_model.ProjectView, s
 	for _, existingGrant := range projectGrants {
 		existingGrant.Name = project.Name
 	}
-	return p.view.PutProjectGrants(projectGrants, sequence, eventTimestamp)
+	return p.view.PutProjectGrants(projectGrants, event)
 }
 
 func (p *ProjectGrant) OnError(event *models.Event, err error) error {