import express, { Request, Response, NextFunction } from 'express';
import http from 'http'; // Import Node's built-in HTTP module
import { Server as SocketServer } from 'socket.io'; // Import Socket.io
import { query, body, validationResult } from 'express-validator';
import bodyParser from 'body-parser';
import { log } from 'console';

require('dotenv').config();

const app = express();

const server = http.createServer(app); // Create an HTTP server
const io = new SocketServer(server); // Create a Socket.io server instance

// app.use(bodyParser.urlencoded());

// app.use(bodyParser.json());

app.use(express.json());
app.use(express.urlencoded({ extended: true }));

app.post('/test', bodyParser.json(), (req: Request, res: Response) => {
    console.log(req.body);
    res.send(req.body);


});


const validate = (req: Request, res: Response, next: NextFunction) => {
    // console.log(req.body);
    // console.log(JSON.stringify(req.body, null, 2));


    const errors = validationResult(req);

    if (!errors.isEmpty()) {
        return res.status(400).json({ errors: errors.array() });
    }
    next();
};


var rules = [
    body('phone_number').notEmpty(),
    body('telephone_id').notEmpty(),
    body('phone_number').isLength({ min: 11, max: 11 }).withMessage("شماره تلفن باید 11 رقم باشد.")
];


app.post('/send_notification', rules, validate, (req: Request, res: Response) => {


    // console.log(req.body.telephone_id);


    io.fetchSockets().then((sockets) => {
        let find = 0;
        sockets.map((socket) => {

            if (socket.handshake.auth.token === req.body.telephone_id) {
                find = 1;
                socket.timeout(2000).emit("answer", req.body.phone_number, (err: any, responses: Response) => {
                    if (err) {
                        console.log("#2");
    
                        console.log(err);
    
                        res.end("user does not ack");
    
                        // some clients did not acknowledge the event in the given delay
                    } else {
                        console.log("#1");
    
                        console.log(responses); // one response per client
                        res.end("user received notification");
                    }
                });
            }
            // res.end("inja");
            // try {
            //     const responses = socket.timeout(2000).emitWithAck("answer");
            //     res.send(responses); // one response per client
            //   } catch (e) {
            //     res.end("ridim");

            //     // some clients did not acknowledge the event in the given delay
            //   }

            // socket.timeout(10000).emitWithAck('new_answer', req.body.phone_number);

        })
        if (!find) {
            
        }
    })

    res.end("your message is received ")

});


io.on('connection', (socket) => {

    if (socket.recovered) {
        console.log(socket.handshake.auth.token+':recovered');

    } else {
        console.log(socket.handshake.auth.token+":connect");
    }

    socket.on("disconnect", (reason) => {
        console.log(socket.handshake.auth.token+":"+reason);

    });
});


// Start the HTTP server
server.listen(process.env.port, () => {
    console.log(`Server is running on port ${process.env.port}`);
});