resource->parent ?? null; $parentName = $parent ? trim(($parent->firstname ?? '').' '.($parent->lastname ?? '')) : null; return [ 'id' => (int) ($this->resource->id ?? 0), 'parent_id' => (int) ($this->resource->parent_id ?? 0), 'parent_name' => $parentName, 'invoice_id' => $this->resource->invoice_id ? (int) $this->resource->invoice_id : null, 'school_year' => $this->resource->school_year ?? null, 'period_year' => (int) ($this->resource->period_year ?? 0), 'period_month' => (int) ($this->resource->period_month ?? 0), 'type' => $this->resource->type ?? null, 'to_email' => $this->resource->to_email ?? null, 'cc_email' => $this->resource->cc_email ?? null, 'status' => $this->resource->status ?? null, 'error_message' => $this->resource->error_message ?? null, 'balance_snapshot' => (float) ($this->resource->balance_snapshot ?? 0), 'sent_at' => $this->resource->sent_at ?? null, ]; } }