import type { Blockchain } from '../../blockchain';
import type { RpcClient } from '../../rpc';
import type { Wallet } from '../wallet';
import type { HeadValue } from '../walletdb/headValue';
import { Config } from '../../fileStores';
import { Logger } from '../../logger';
import { Mutex } from '../../mutex';
import { BlockHeader, Transaction } from '../../primitives';
import { WorkerPool } from '../../workerPool';
import { ChainProcessorWithTransactions } from './chainProcessorWithTransactions';
import { BackgroundNoteDecryptor } from './noteDecryptor';
import { RemoteChainProcessor } from './remoteChainProcessor';
import { ScanState } from './scanState';
export declare class WalletScanner {
    readonly logger: Logger;
    readonly wallet: Wallet;
    readonly workerPool: WorkerPool;
    readonly config: Config;
    readonly chain: Blockchain | null;
    readonly nodeClient: RpcClient | null;
    state: ScanState | null;
    lock: Mutex;
    /**
     * A snapshot of the accounts that have `scanningEnabled` set to true. Used
     * to tell what accounts should be scanned, and from what block.
     */
    private scanningAccounts;
    constructor(options: {
        logger: Logger;
        wallet: Wallet;
        workerPool: WorkerPool;
        config: Config;
        nodeClient?: RpcClient | null;
        chain?: Blockchain | null;
    });
    get running(): boolean;
    abort(): Promise<void>;
    wait(): Promise<void>;
    scan(): Promise<ScanState>;
    connectBlock(blockHeader: BlockHeader, transactions: Transaction[], decryptor: BackgroundNoteDecryptor, abort?: AbortController): Promise<void>;
    private disconnectBlock;
    getChainProcessor(start: HeadValue | null): ChainProcessorWithTransactions | RemoteChainProcessor;
    /**
     * Checks whether `scanningAccounts` is stale or up-to-date.
     */
    private haveWalletAccountsChanged;
    private getScanningAccountsWithHead;
    /**
     * Replaces `scanningAccounts` with fresh values from the wallet.
     */
    private refreshScanningAccounts;
    private getEarliestHead;
}
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