refactor(v2): init events (#7823)

creates events structures for initial projections and read models

internal/v2/instance/domain_policy.go

@@ -0,0 +1,65 @@
+package instance
+
+import (
+	"github.com/zitadel/zitadel/internal/v2/eventstore"
+	"github.com/zitadel/zitadel/internal/v2/policy"
+	"github.com/zitadel/zitadel/internal/zerrors"
+)
+
+const DomainPolicyAddedType = eventTypePrefix + policy.DomainPolicyAddedTypeSuffix
+
+type DomainPolicyAddedPayload policy.DomainPolicyAddedPayload
+
+type DomainPolicyAddedEvent eventstore.Event[DomainPolicyAddedPayload]
+
+var _ eventstore.TypeChecker = (*DomainPolicyAddedEvent)(nil)
+
+// ActionType implements eventstore.Typer.
+func (c *DomainPolicyAddedEvent) ActionType() string {
+	return DomainPolicyAddedType
+}
+
+func DomainPolicyAddedEventFromStorage(event *eventstore.StorageEvent) (e *DomainPolicyAddedEvent, _ error) {
+	if event.Type != e.ActionType() {
+		return nil, zerrors.ThrowInvalidArgument(nil, "INSTA-z1a7D", "Errors.Invalid.Event.Type")
+	}
+
+	payload, err := eventstore.UnmarshalPayload[DomainPolicyAddedPayload](event.Payload)
+	if err != nil {
+		return nil, err
+	}
+
+	return &DomainPolicyAddedEvent{
+		StorageEvent: event,
+		Payload:      payload,
+	}, nil
+}
+
+const DomainPolicyChangedType = eventTypePrefix + policy.DomainPolicyChangedTypeSuffix
+
+type DomainPolicyChangedPayload policy.DomainPolicyChangedPayload
+
+type DomainPolicyChangedEvent eventstore.Event[DomainPolicyChangedPayload]
+
+var _ eventstore.TypeChecker = (*DomainPolicyChangedEvent)(nil)
+
+// ActionType implements eventstore.Typer.
+func (c *DomainPolicyChangedEvent) ActionType() string {
+	return DomainPolicyChangedType
+}
+
+func DomainPolicyChangedEventFromStorage(event *eventstore.StorageEvent) (e *DomainPolicyChangedEvent, _ error) {
+	if event.Type != e.ActionType() {
+		return nil, zerrors.ThrowInvalidArgument(nil, "INSTA-BTLhd", "Errors.Invalid.Event.Type")
+	}
+
+	payload, err := eventstore.UnmarshalPayload[DomainPolicyChangedPayload](event.Payload)
+	if err != nil {
+		return nil, err
+	}
+
+	return &DomainPolicyChangedEvent{
+		StorageEvent: event,
+		Payload:      payload,
+	}, nil
+}