import 'dotenv/config'

import { createServer } from "http";
import { Server } from "socket.io"
import {lookupToken} from "./token.js";

const options = {}
if( process.env.DEXORDER_CORS )
    options['cors'] = {origin:process.env.DEXORDER_CORS}
const httpServer = createServer()
const io = new Server(httpServer, options)

io.on("connection", (socket) => {
    // initially, only anonymous messages are allowed
    socket.on('lookupToken', (chainId, address, callback) => {
        lookupToken(chainId, address).then((result)=>callback(result)).catch(()=>callback(null))
    })
    // todo send known tokens or other initial config
    socket.emit('welcome', {})
});

const port = parseInt(process.env.DEXORDER_PORT) || 3000;
httpServer.listen(port)
console.log('Started server on port '+port)
console.log(options)