import { Initiable } from "../../sqliteDAL/Initiable";
export interface BlockLike {
    number: number;
    hash: string;
    previousHash: string;
}
export interface BlockchainArchiveDAO<T extends BlockLike> extends Initiable {
    /**
     * Trigger the initialization of the DAO. Called when the underlying DB is ready.
     */
    triggerInit(): void;
    /**
     * Retrieves a block from the archives.
     * @param {number} number Block number.
     * @param {string} hash Block hash.
     * @returns {Promise<DBBlock>}
     */
    getBlock(number: number, hash: string): Promise<T | null>;
    /**
     * Retrieves a block from the archives, without checking the hash.
     * @param {number} number Block number.
     * @returns {Promise<DBBlock>}
     */
    getBlockByNumber(number: number): Promise<T | null>;
    /**
     * Get the blocks whose number is between [start ; end].
     * @param {number} start Starting number to be included.
     * @param {number} end Ending number to be included.
     * @returns {Promise<T[]>} The corresponding blocks.
     */
    getBlocks(start: number, end: number): Promise<T[]>;
    /**
     * Archives a suite of blocks.
     *
     * Throws an exception is blocks does not follow each other, or does not follow previously archived blocks.
     * @param {DBBlock[]} records The blocks to archive.
     * @returns {Promise<void>}
     */
    archive(records: T[]): Promise<number>;
    /**
     * Retrieve the last block (maximum number) that was archived.
     * @returns {Promise<BlockLike | null>}
     */
    getLastSavedBlock(): Promise<T | null>;
    readonly chunkSize: number;
}