import type { PoolConfig } from 'pg';
export type OutboxMessage = {
    id: string;
    processed: false;
    created_at: Date;
    updated_at: Date;
    topic: string;
    key: string | null;
    value: unknown;
    partition: number | null;
    timestamp: string;
    response: unknown;
    error: string | null;
    context_id: number;
    meta: object | null;
    headers: Record<string, string> | null;
    attempts: number;
    since_at: Date | null;
    is_event: boolean;
};
export interface StartStop {
    start(): Promise<void>;
    stop(): Promise<void>;
}
export interface Send {
    send(messages: readonly OutboxMessage[]): Promise<((PromiseFulfilledResult<unknown> | PromiseRejectedResult) & {
        meta?: object;
    })[]>;
}
export interface OnHandled {
    onHandled(messages: readonly OutboxMessage[]): Promise<void>;
}
export type Adapter = StartStop & Send & OnHandled;
export type Options = {
    pgOptions: PoolConfig;
    adapter: Adapter;
    outboxOptions?: {
        /**
         * how often to poll PostgreSQL for new messages, default 5000 milliseconds
         */
        pollInterval?: number;
        /**
         * how much messages send for processing, default 50
         */
        limit?: number;
        mode?: 'short-polling' | 'notify';
        /**
         * callback for handling uncaught error
         */
        onError?: (err: Error) => unknown;
        /**
         * For scaling by partitions, pass partition number 0..n
         */
        partition?: number;
        /**
         * Array of topics, which should be handled only
         */
        topicFilter?: string[];
        /**
         * predicate for error retrying
         */
        retryError?: (err: Error) => boolean;
        /**
         * retrying delay in seconds, default 5 seconds
         */
        retryDelay?: number;
        /**
         * max attempts for retry, default 5
         */
        retryMaxAttempts?: number;
    };
    eventSourcingOptions?: {
        /**
         * how much messages send for processing on init sync, default 100
         */
        initSyncBatchSize?: number;
    };
};