import { IoAdapter } from '@nestjs/platform-socket.io';
import { INestApplicationContext, WsMessageHandler } from '@nestjs/common';
import socketio from 'socket.io';
import { FnDbPostgresService } from '../fn.db.postgres/fn.db.postgres.service';
import { IUserGetInfoOut } from '../fn.db.postgres/fn.db.postgres.interface';
import { Handshake } from 'socket.io/dist/socket-types';
import { CorsOptions } from 'cors';
import { IncomingHttpHeaders } from 'http';
import { SessionParams } from '../../fn.core.type';
import { Socket } from 'socket.io';
import { Observable } from 'rxjs';
export interface IClientHttpHeaders extends IncomingHttpHeaders {
}
export interface SessionGroupInfo {
    name: string;
    group_guid: number;
    short_name: string;
    group_description: string;
}
export interface SessionUserInfo {
    email: string;
    settings: {
        [key: string]: any;
    };
    is_active: boolean;
    user_type: Array<string>;
    first_name: string;
    user_group: Array<SessionGroupInfo>;
    connection_limit: number;
}
export interface IdbGrant {
    grant_id: number;
    grant_name: string;
    grant_description: string;
}
export interface AuthenticatedSocket extends socketio.Socket {
    sessionParams: SessionParams;
}
export interface AdapterOptions {
    maxHttpBufferSize: number;
}
export declare class FnSocketIoAuthenticationAdapter extends IoAdapter {
    private readonly app;
    private _secretAccessToken;
    private _db;
    private _cors;
    private _adapterOptions;
    adapterOptions: AdapterOptions;
    constructor(app: INestApplicationContext, _secretAccessToken: string, _db: FnDbPostgresService, _cors?: CorsOptions, _adapterOptions?: Partial<AdapterOptions>);
    create(port: number, options: socketio.ServerOptions): socketio.Server;
    setupNewSession(socket: AuthenticatedSocket, handshake: Handshake): void;
    tokenAuthentication(socketToken: string): Promise<IUserGetInfoOut>;
    setLastAccessTime(userGuid: number): void;
    bindMessageHandlers(client: Socket, handlers: WsMessageHandler<string>[], transform: (data: any) => Observable<any>): void;
}