export type MigrationFailureFence = {
  state: string;
  source_node_id: string;
  target_node_id: string;
  source_generation: number;
  target_generation: number;
};

export function authorityAfterMigrationFailure(record: MigrationFailureFence): {
  nodeId: string;
  generation: number;
} {
  if (record.state === "draining") {
    return { nodeId: record.target_node_id, generation: record.target_generation };
  }
  return { nodeId: record.source_node_id, generation: record.source_generation };
}