import { JSONValue, Sql, TransactionSql } from 'postgres';
import { DeepReadonly } from 'ts-essentials';
import { ConsumerCreationParams } from './ConsumerCreationParams.js';
type HermesMessageEnvelope<Message extends JSONValue> = {
    position: number | bigint;
    messageId: string;
    messageType: string;
    lsn: string;
    redeliveryCount: number;
    message: Message;
};
type MessageEnvelope<Message extends JSONValue> = {
    messageId: string;
    messageType: string;
    message: Message;
};
type InsertResult = {
    position: number | bigint;
    messageId: string;
    messageType: string;
    partitionKey: string;
    payload: string;
};
type Start = () => Promise<Stop>;
type Stop = () => Promise<void>;
type PublishOptions = {
    partitionKey?: string;
    tx?: TransactionSql;
};
type Publish<Message extends JSONValue> = (message: MessageEnvelope<Message> | MessageEnvelope<Message>[], options?: PublishOptions) => Promise<void>;
type IOutboxConsumer<Message extends JSONValue> = {
    start: Start;
    queue: Publish<Message>;
    send: (message: MessageEnvelope<Message> | MessageEnvelope<Message>[], tx?: TransactionSql) => Promise<void>;
    getDbConnection(): Sql;
    getCreationParams(): DeepReadonly<ConsumerCreationParams<Message>>;
};
type NowFunction = () => Date;
type ErrorCallback = (error: unknown) => void;
type HermesSql = Sql<{
    bigint: bigint;
}>;
export type { ErrorCallback, HermesMessageEnvelope, HermesSql, InsertResult, IOutboxConsumer, MessageEnvelope, NowFunction, Publish, PublishOptions, Start, Stop, };