-- Group table with hierarchical nesting — tenant scoping at the handler layer.
DEFINE TABLE OVERWRITE contact_group SCHEMAFULL;

DEFINE FIELD OVERWRITE tenantId ON contact_group TYPE string ASSERT $value != NONE;
DEFINE FIELD OVERWRITE name ON contact_group TYPE string ASSERT $value != NONE;
DEFINE FIELD OVERWRITE description ON contact_group TYPE option<string>;
DEFINE FIELD OVERWRITE parentId ON contact_group TYPE option<string>;
DEFINE FIELD OVERWRITE path ON contact_group TYPE string ASSERT $value != NONE;
DEFINE FIELD OVERWRITE depth ON contact_group TYPE int DEFAULT 0;
DEFINE FIELD OVERWRITE metadata ON contact_group TYPE object DEFAULT {};
DEFINE FIELD OVERWRITE contactCount ON contact_group TYPE int DEFAULT 0;
DEFINE FIELD OVERWRITE totalContactCount ON contact_group TYPE int DEFAULT 0;
DEFINE FIELD OVERWRITE createdAt ON contact_group TYPE datetime DEFAULT time::now();
DEFINE FIELD OVERWRITE updatedAt ON contact_group TYPE datetime VALUE time::now();

DEFINE INDEX OVERWRITE idx_group_tenant ON contact_group FIELDS tenantId;
DEFINE INDEX OVERWRITE idx_group_parent ON contact_group FIELDS tenantId, parentId;
DEFINE INDEX OVERWRITE idx_group_path ON contact_group FIELDS path;