import { Server, Socket } from "socket.io"
import { Server as httpServer } from "http"
import * as U from '../Utils'
import * as T from '../Types'
import socketio = require('socket.io')
import middleware = require('socketio-wildcard');

const defaultConfig : socketio.ServerOptions = {
    cookie: false,
    path: '/socket.io',
}

export class PromiseIO {
    io?: Server
    httpServer: httpServer
    private listeners: { [eventName in string]: ((...args: any) => void)[] } = {
        socket: [],
        connect: []
    }

    attach(httpServer: httpServer, options: socketio.ServerOptions = defaultConfig) {
        if(options.path && !options.path.startsWith('/')){
            options.path = "/"+options.path
        }
        this.httpServer = httpServer
        this.io = socketio(httpServer, options)
        this.io!.use(middleware())
        this.io!.on('connection', (clientSocket: Socket) => {

            clientSocket['address'] = clientSocket.handshake.headers["x-real-ip"] || clientSocket.handshake.address
            const pioSock = U.makePioSocket(clientSocket)
            this.listeners['socket'].forEach(listener => listener(pioSock))
            this.listeners['connect'].forEach(listener => listener(pioSock))

            /*
            pioSock.on('error', ()=>console.log('error'));

            pioSock.on('connect_timeout', ()=>console.log('connect_timeout'))
            pioSock.on('disconnect', ()=>console.log('disconnect'))
            pioSock.on('reconnect', ()=>console.log('reconnect'))
            pioSock.on('reconnect_attempt', ()=>console.log('reconnect_attempt'))
            pioSock.on('reconnecting', ()=>console.log('reconnecting'));
            pioSock.on('reconnect_failed', ()=>console.log('reconnect_failed'));
            pioSock.on('reconnecting', ()=>console.log('reconnecting'));
            */
        })
    }

    listen(port: number) {
        this.httpServer!.listen(port)
    }

    on(eventName: string, listener: T.AnyFunction) {
        if (this.listeners[eventName] == null) {
            this.listeners[eventName] = []
        }
        this.listeners[eventName].push(listener)
    }

    close = () => {
        if(this.io){
            this.io.engine.ws.close()
            this.io.close()
            this.io = undefined
        }
    }

}