feat(admin-api): list events (#4989)

* docs: update cockroachdb version to 22.2
* feat(adminAPI): ListEventTypes returns the list of event types ZITADEL implements
* feat(adminAPI): ListAggregateTypes returns the list of aggregate types ZITADEL implements
* feat(adminAPI): ListEvents allows `IAM_OWNERS` to search for events

internal/query/event.go

@@ -0,0 +1,73 @@
+package query
+
+import (
+	"context"
+	"time"
+
+	"github.com/zitadel/zitadel/internal/eventstore"
+)
+
+type Event struct {
+	Editor       *EventEditor
+	Aggregate    eventstore.Aggregate
+	Sequence     uint64
+	CreationDate time.Time
+	Type         string
+	Payload      []byte
+}
+
+type EventEditor struct {
+	ID          string
+	DisplayName string
+	Service     string
+}
+
+func (q *Queries) SearchEvents(ctx context.Context, query *eventstore.SearchQueryBuilder) ([]*Event, error) {
+	events, err := q.eventstore.Filter(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+
+	return q.convertEvents(ctx, events), nil
+}
+
+func (q *Queries) SearchEventTypes(ctx context.Context) []string {
+	return q.eventstore.EventTypes()
+}
+
+func (q *Queries) SearchAggregateTypes(ctx context.Context) []string {
+	return q.eventstore.AggregateTypes()
+}
+
+func (q *Queries) convertEvents(ctx context.Context, events []eventstore.Event) []*Event {
+	result := make([]*Event, len(events))
+	for i, event := range events {
+		result[i] = q.convertEvent(ctx, event)
+	}
+	return result
+}
+
+func (q *Queries) convertEvent(ctx context.Context, event eventstore.Event) *Event {
+	displayName := event.EditorUser()
+	user, err := q.GetUserByID(ctx, false, event.EditorUser(), false)
+	if err == nil {
+		if user.Human != nil {
+			displayName = user.Human.DisplayName
+		} else if user.Machine != nil {
+			displayName = user.Machine.Name
+		}
+	}
+
+	return &Event{
+		Editor: &EventEditor{
+			ID:          event.EditorUser(),
+			Service:     event.EditorService(),
+			DisplayName: displayName,
+		},
+		Aggregate:    event.Aggregate(),
+		Sequence:     event.Sequence(),
+		CreationDate: event.CreationDate(),
+		Type:         string(event.Type()),
+		Payload:      event.DataAsBytes(),
+	}
+}