const express = require("express")
const app = express()
const PORT = 3000

const path = require('path')
const fs = require('fs')
const formidable = require('formidable')

app.get("/", function (req, res) {
    res.sendFile(path.join(__dirname, '/static/form5.html'))
})

app.post('/process_upload', function (req, res) {
    let formularz = formidable({
        keepExtensions: true
    })

    formularz.uploadDir = __dirname + '/static/upload/'

    formularz.parse(req, function (err, fields, files) {
        // https://stackoverflow.com/questions/423376/how-to-get-the-file-name-from-a-full-path-using-javascript
        let name_from_path = files.wyslany_plik.path.replace(/^.*[\\/]/, '')
        if (files.wyslany_plik.type == 'text/plain') {
            fs.readFile(files.wyslany_plik.path, function (err, data) {
                let danepliku = {
                    "type": files.wyslany_plik.type,
                    "path": name_from_path,
                    "text": data.toString()
                }

                res.send(JSON.stringify(danepliku))
            })
        } else {
            let danepliku = {
                "type": files.wyslany_plik.type,
                "path": name_from_path,
                "text": ""
            }

            res.send(JSON.stringify(danepliku))
        }
    })
})

app.use(express.static('static'))

app.listen(PORT, function () {
    console.log("start serwera na porcie " + PORT)
})