import { TableType } from '../commands';
/**
 * Interface defining the TTL service.
 */
export interface ITtlService {
    /**
     * Calculates the Unix timestamp TTL based on the given type, tenant code, and optional start date.
     *
     * @param {TableType} type - The table type.
     * @param {string} [tenantCode] - (Optional) The tenant code.
     * @param {Date} [startDate] - (Optional) The start date. Defaults to the current date if not provided.
     * @returns {Promise<number | null>} The TTL as a Unix timestamp or `null` if no configuration is found.
     */
    calculateTtl(type: TableType, tenantCode?: string, startDate?: Date): Promise<number | null>;
    /**
     * Retrieves the TTL configuration for the given table type and tenant code.
     *
     * @param {TableType} type - The table type.
     * @param {string} [tenantCode] - (Optional) The tenant code.
     * @returns {Promise<number | null>} The number of days configured for TTL or `null` if no configuration is found.
     */
    getTtlConfiguration(type: TableType, tenantCode?: string): Promise<number | null>;
    /**
     * Calculates the Unix timestamp for the given number of days from a start date.
     *
     * @param {number} days - The number of days to calculate the TTL.
     * @param {Date} [startDate] - (Optional) The start date. Defaults to the current date if not provided.
     * @returns {number} The TTL as a Unix timestamp.
     * @throws {Error} An error if the number of days is less than or equal to zero.
     */
    calculateUnixTime(days: number, startDate?: Date): number;
}