import { SessionAttendees, VideoChatSession } from '../models';
import { VonageSessionWebhookPayload } from '../providers/vonage';
import { SessionAttendeesRepository, VideoChatSessionRepository } from '../repositories';
import { IConfig, MeetingLink, MeetingOptions, SessionOptions, SessionResponse, VideoChatInterface } from '../types';
import { MeetingLinkIdGenerator } from './meeting-link-id-generator.provider';
export declare class ChatSessionService {
    private readonly videoChatSessionRepository;
    private readonly videoChatProvider;
    generator: MeetingLinkIdGenerator;
    private readonly sessionAttendeesRepository;
    private readonly config;
    constructor(videoChatSessionRepository: VideoChatSessionRepository, videoChatProvider: VideoChatInterface, generator: MeetingLinkIdGenerator, sessionAttendeesRepository: SessionAttendeesRepository, config: IConfig);
    getMeetingLink(meetingOptions: MeetingOptions): Promise<MeetingLink>;
    /**
     * The function `getMeetingToken` retrieves a session token for a meeting based on provided options and
     * meeting link ID, with validation checks for session existence, expiration, and scheduled start time.
     * @param {SessionOptions} sessionOptions - The `sessionOptions` parameter in the `getMeetingToken`
     * function represents the options for the session, such as the configuration settings for the meeting.
     * It is an object that contains various properties like `expireTime`, `sessionId`, etc., which are
     * used to customize the session behavior.
     * @param {string} meetingLinkId - The `meetingLinkId` parameter is a string that represents the unique
     * identifier for a specific meeting or session. It is used to retrieve information about the meeting
     * from the database and validate its status before generating a meeting token.
     * @returns The `getMeetingToken` function returns a Promise that resolves to a `SessionResponse`
     * object.
     */
    getMeetingToken(sessionOptions: SessionOptions, meetingLinkId: string): Promise<SessionResponse>;
    /**
     * The function `_validateMeetingLinkId` checks if the provided meeting link ID is a valid non-empty
     * string in TypeScript.
     * @param {string} meetingLinkId - The `meetingLinkId` parameter is a string that represents the link
     * to a meeting. The `_validateMeetingLinkId` function is used to check if the `meetingLinkId` is a
     * valid string and not empty. If the `meetingLinkId` is not a valid string or is empty, it will throw
     */
    private _validateMeetingLinkId;
    /**
     * The function `_validateExpireTime` checks if the provided expire time is in the correct format and
     * not in the past.
     * @param {Date} [expireTime] - The `_validateExpireTime` function is used to validate the
     * `expireTime` parameter. It checks if the `expireTime` is provided and if it is a valid Date object.
     * It also ensures that the `expireTime` is not in the past.
     */
    private _validateExpireTime;
    editMeeting(meetingLinkId: string, body: Partial<VideoChatSession>): Promise<void>;
    endSession(meetingLinkId: string): Promise<void>;
    checkWebhookPayload(webhookPayload: VonageSessionWebhookPayload): Promise<void>;
    processStreamDestroyedEvent(webhookPayload: VonageSessionWebhookPayload, sessionAttendeeDetail: SessionAttendees, updatedAttendee: Partial<SessionAttendees>): Promise<void>;
    getAttendeesList(meetingLinkId: string, active: string): Promise<SessionAttendees[]>;
}