server.js

const fileUpload       = require('express-fileupload');
const express          = require('express')
const bodyParser       = require('body-parser')
const {join}           = require('path')
const layouts          = require('express-ejs-layouts')
const { Server }       = require('socket.io');
const { createServer } = require('node:http');
const save             = require('./scripts/file_upload')
const { 
    convert,
    running_code
}               = require('./scripts/gcode/gcode_process')
const {
    info_table
}                = require('./scripts/funs');

const PORT = process.env.PORT || 3000;

const app    = express();
const server = createServer(app);

const io = new Server(server,{
    cors:{
        origin:'*'
    }
});

let TABLE;


app.use(fileUpload());
app.use(express.static('public'));
app.use(express.json({ limit: '10mb' }));
app.use(express.urlencoded({ extended: true }));
app.use(layouts)

app.set('view engine', 'ejs')
app.set('views', join(__dirname, 'views'));

let ranges =    {
                  'feedrate-X':2400,'feedrate-Y':2400,'feedrate-Z':2400,
                  'stepsize-X':10,'stepsize-Y':10,'stepsize-Z':10,
                  'X':{'cp':0,'val':0},
                  'Y':{'cp':0,'val':0},
                  'Z':{'cp':0,'val':0}
                };

                
io.on('connection', () => {
    console.log('a user connected ','server')
});


['control','upload','printing'].forEach(n=>{
    app.get('/'+n, async(req, res) => {
        if(n=='control'){
            await send('G28');
            await send('G91');
            ['X','Y','Z'].forEach(n=>{
                ranges[n]['cp'] = 0
            })
        }
        if(n=='printing' && TABLE){
            let table = TABLE
            res.render('refs/'+n,{table})
        }
        else{
            res.render('refs/'+n)
        }
    });
})


app.post('/upload', async (req, res) => {
    const out = await save(req.files, 'uploadedFile', __dirname + '/files/uploads/');
    if (out['status'] === 'File uploaded') {
        const data  = await convert('files/uploads/' + out['filename'], 'files/processed/');
        const table = await info_table(data['info']);
        TABLE = table
        res.redirect('printing')
        await running_code(
            data['layers'], 
            data['len'], 
            data['times'],
            './files/status_db/' + out['filename'].replace('.gcode', '.txt'),
            io
        );
    } else {
        res.send(out['err']);
    }
});
 
app.listen(PORT,()=>{
    console.log(`Server Started @ ${PORT}`)
})

server.listen(PORT+1, () => console.log(`Listening on port ${PORT+1}`));