import {IChainForkConfig} from "@lodestar/config";
import {Bucket, IDatabaseController, Repository} from "@lodestar/db";
import {phase0, ssz} from "@lodestar/types";

/**
 * Block headers by block root. Until finality includes all headers seen by this node. After finality,
 * all non-checkpoint headers are pruned from this repository.
 *
 * Used to prepare light client updates
 */
export class CheckpointHeaderRepository extends Repository<Uint8Array, phase0.BeaconBlockHeader> {
  constructor(config: IChainForkConfig, db: IDatabaseController<Uint8Array, Uint8Array>) {
    super(config, db, Bucket.lightClient_checkpointHeader, ssz.phase0.BeaconBlockHeader);
  }
}