import type { LogDeduper } from './log-deduper.js';
export type LogLevelString = 'info' | 'warn' | 'error';
/**
 * dedupeKey - key used to deduplicate log entries when a LogDeduper is injected into the MMConnectorLogger
 *
 * A recommended practice is to use a meaningful unique identifier for this log entry type.
 * Examples: SyncFromERPCompleted
 *           SyncFromERPError:HTTPError
 */
export declare class LogEntry {
    level: LogLevelString;
    message: string;
    dedupeKey: string;
    eventTime: number;
    constructor(params: {
        level: LogLevelString;
        message: string;
        dedupeKey: string;
    });
}
/**
 * The response from the MM connector logging API
 */
export interface LogResponse {
    message: string;
    processed?: number;
}
/**
 * MM Connector Logger for sending progress and error updates to the MM cloud
 *
 * This class provides helper methods to send individual logs to the
 * MM connector logging API, providing support for validation, retries, and error handling
 * according to the API specification.
 *
 * By injecting a LogDeduper, the log entries are deduplicated across jobs over a specified time window
 */
export declare class MMConnectorLogger {
    private readonly MAX_MSG_LEN;
    private mmApiClient;
    private readonly deduper?;
    private readonly source;
    constructor(source: string, deduper?: LogDeduper);
    /**
     * Send a single log entry to the MM cloud with deduplication.
     *
     * The deduplication is handled by the injected LogDeduper.
     * If no deduper is injected, the log entry is sent without deduplication.
     *
     * The standard deduper, FileLogDeduper, stores the deduplication state in a file,
     * allowing deduplication across jobs,
     *
     * @param logEntry - The log entry to send
     * @returns Promise resolving to the API response or null if suppressed
     * @throws HTTPError if the request fails or Error if the log entry is invalid
     */
    sendLog(logEntry: LogEntry): Promise<LogResponse | null>;
    /**
     * @throws Error if validation fails
     */
    private validateLogEntry;
    /**
     * Retry all failed transmissions silently
     * This method attempts to retry all messages that failed to transmit
     * and removes them from the failed list if successful, else leaves them for the client to retry
     *
     * Expected usage is by a client to call this as part of its own retry mechanism
     */
    retryFailedTransmissions(): Promise<void>;
    /**
     * Clean up resources
     */
    destroy(): Promise<void>;
}
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