import { ErrorInterface, SuccessInterface } from "../../config/Interfaces/Helper/response.helper.interface";
import { WALEntry } from "../../config/Interfaces/Transaction/transaction.interface";
export default class WriteAheadLog {
    private readonly walPath;
    private readonly transactionDir;
    private readonly FileManager;
    private readonly FolderManager;
    private readonly Converter;
    private readonly ResponseHelper;
    private readonly collectionPath;
    private pendingEntries;
    private batchSize;
    private flushTimeout;
    private readonly flushDelayMs;
    constructor(collectionPath: string, transactionId: string);
    createWAL(): Promise<SuccessInterface | ErrorInterface>;
    /**
     * Appends a single log entry. For better performance, use appendLogBatch.
     */
    appendLog(entry: WALEntry): Promise<SuccessInterface | ErrorInterface>;
    /**
     * Appends multiple log entries in a single disk write operation.
     * Much more efficient than calling appendLog multiple times.
     *
     * @param entries - Array of WAL entries to write
     * @returns Success/Error result
     */
    appendLogBatch(entries: WALEntry[]): Promise<SuccessInterface | ErrorInterface>;
    /**
     * Queues an entry for batched write. Flushes automatically when batch is full
     * or after a short delay.
     *
     * @param entry - WAL entry to queue
     */
    queueEntry(entry: WALEntry): void;
    /**
     * Flushes all pending entries to disk immediately.
     */
    flushPendingEntries(): Promise<SuccessInterface | ErrorInterface>;
    getLogEntries(): Promise<WALEntry[]>;
    deleteWAL(): Promise<SuccessInterface | ErrorInterface>;
    redo(): Promise<SuccessInterface | ErrorInterface>;
    undo(): Promise<SuccessInterface | ErrorInterface>;
    private calculateChecksum;
}